xx (x = 2 - 4) is grown on the chromium layer, and the anatase phase of the titanium oxide layer with respect to the rutile phase of the titanium oxide layer has a percentage in the range of 30% - 90%.
The present invention relates to a structured layer arrangement having a planar carrier substrate, on the functional and effective side of which a structured chromium layer is arranged. Said layer consists of chromium regions which alternate with uncoated regions of the carrier substrate. A flat reactive layer is arranged over the chromium layer and has a higher photocatalytic activity in portions over the chromium regions than in portions over the uncoated regions of the carrier substrate (figure 2).
G03F 7/00 - Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printed surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
G01N 21/77 - Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator
4.
DEVICE AND METHOD FOR SIMULTANEOUSLY IMAGING TWO OBJECT PLANES
The invention relates to a device (100) comprising at least one light source (10), an input coupling grating (20) and a biochip. The biochip of the device comprises at least one biograting (33, 34, 35) having a focal length f and a waveguiding layer (30) having a top side (31) and an underside, a substrate (32) being arranged on the underside of the waveguiding layer. The device is characterized in that it furthermore comprises a first objective lens (50) having a focal length f1, a second objective lens (53) having a focal length f2, a third objective lens (54) having a focal length fg, a beam splitter (51) having a mount, a first pinhole stop (52), and a first and a second detector (61, 62). Furthermore, the device according to the invention is configured to image the focal plane (40) of the at least one biograting onto the first detector (61) and simultaneously to image the surface of the top side (31) of the waveguiding layer onto the second detector (62). Furthermore, the invention encompasses a method for simultaneously imaging the focal plane of the at least one biograting and the surface of the top side of the waveguiding layer with the aid of the device according to the invention.
G01N 21/77 - Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator
G02B 21/18 - Arrangements with more than one light-path, e.g. for comparing two specimens
The invention relates to a measuring device which comprises a first assembly (1) and a second assembly (2), wherein the assemblies (1, 2) are arranged so as to be rotatable relative to one another about an axis (R). The first assembly (1) comprises a scanning component (1.1; 1.1') which has a first substrate (1.11), and the second assembly (2) comprises a dial component (2.1) which has a second substrate (2.11) and an angular scale (2.13), and therefore a relative angular position between the first assembly (1) and the second assembly (2) can be determined by the measuring device. The measuring device also comprises a passive sensor assembly (1.12; 2.12) which has conductor-track structures (1.121, 1.122, 1.123, 1.124; 2.121, 2.122, 2.123, 2.124). The conductor-track structures (1.121, 1.122, 1.123, 1.124; 2.121) are attached to the scanning component (1.1; 1.1') by additive construction on the first substrate (1.11), and so a torsional load of the first substrate (1.11) about the axis (R) can be determined by the sensor assembly (1.12). Alternatively, the conductor-track structures (2.121, 2.122, 2.123, 2.124) are attached to the dial component (2.1) by additive construction on the second substrate (2.11), and so a torsional load of the second substrate (2.11) about the axis (R) can be determined by the sensor assembly (2.12).
G01D 5/20 - Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature
6.
DEVICE AND METHOD FOR SYNCHRONOUS SERIAL DATA TRANSMISSION
The present invention relates to a device (30) for synchronous serial data transmission over a differential data channel (62) and a differential clock channel (60). The device has an interface controller (40) having a clock generator (44) and a data controller (42), and a clock transmitting component (50) and a data receiving component (54), wherein a transmitting clock signal (CLK_S) can be generated by the clock generator (44), which transmitting clock signal comprises a clock pulse sequence (TP) having a period duration (T) during a data transmission cycle; the transmitting clock signal (CLK_S) is supplied to the clock transmitting component (50), which converts it to a differential clock signal (C+, C-) for output via the clock channel (60); a differential data signal (D+, D-) arriving via the differential data channel (62) is supplied to the data receiver component (54), which converts it to a data signal (DT) and supplies it to the data controller (42); and the transmitting clock signal (CLK_S) is supplied to the data controller (42) for synchronization of the reading of the data signal (DT). The clock generator (44) is suitably designed, in the case of data transmission cycles in a dynamic operating state (DYN), to adjust the duration of the first clock phase (TH1) of the first clock period (T1) of the clock pulse sequence (TP) to be longer than the first clock phase (TH) of the following clock periods and to be shorter than a duration required for reaching the maximum differential voltage (UDmax) of the clock transmitting component (50). The invention furthermore relates to a method for synchronous serial data transmission.
G08C 19/28 - Electric signal transmission systems in which transmission is by pulses using pulse code
G05B 19/18 - Numerical control (NC), i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
The invention relates to a position measuring device (10) comprising a carrier body (12) and a first to third scanning unit (20.1 to 20.3). A first measuring division (14.1) comprises multiple division structures (16.1) arranged periodically along a first measuring direction (X), wherein the division structures (16.1) of the first measuring division (14.1) each extend parallel to a first direction (P1). A second measuring division (14.2) comprises multiple division structures (16.2) arranged periodically along a second measuring direction (Y), wherein the first measuring direction (X) and the second measuring direction (Y) run perpendicular to one another. A reference mark (18) extends in a second direction (P2), wherein the first direction (P1) and the second direction P2) form an angle (α) in relation to one another that is less than 0°. The position measuring device (10) is designed in such a way that, according to first scanning signals (22.1) of the first scanning unit (20.1) and a reference pulse (24) of the third scanning unit (30.3), a phase position (32) of the reference pulse (24) is determined.
G01D 5/245 - Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means generating pulses or pulse trains using a variable number of pulses in a train
G01D 5/347 - Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using optical means, i.e. using infrared, visible or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells using displacement encoding scales
The invention relates to a diffractive biosensor for selectively detecting biomolecules, comprising a substrate (S) and an optical biograting (BG) arranged on the substrate (S). The biograting (BG) has periodically arranged receptors for the biomolecules, and the efficiency of a diffraction of incident light (L), and thus the intensity of a measurement light bundle (ML) striking the detector (D), depends on a mass occupancy of the biograting (BG) by the biomolecules to be detected. The biosensor has a device (RG, ST1) for generating a reference light bundle (RL) which is oriented towards the detector (D) and by means of which the phase position of scattered light striking the detector (D) can be determined.
G01N 21/77 - Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator
9.
POSITION MEASURING ARRANGEMENT AND METHOD FOR OPERATING A POSITION MEASURING ARRANGEMENT
The present invention relates to a position measuring arrangement and a method for operating same in order to determine the relative position of two objects (1, 2) which are arranged moveable in relation to one another along at least one measurement direction. To this end, provision is made of at least one material measure (10) which is connected to one of the two objects and has at least one measurement gradation (11). Further, provision is made of at least two sensing units (20.1, 20.2) which are connected to the other one of the two objects and which are arranged spaced apart at a sensing distance from the material measure in a distance direction. The sensing units each comprise optical sensing units which serve to form a sensing beam path in order to optically sense the measurement gradation and produce position-dependent sensing signals thereabout. At least one optical compensation element (30) that is introducible into or removable from the sensing beam path is assigned to at least one sensing unit. A modification of the working range, which is provided in relation to the spatial arrangement of sensing unit and material measure and in which the sensing unit can produce position-dependent sensing signals, is effectable by introducing or removing the compensation element (30).
G01D 5/347 - Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using optical means, i.e. using infrared, visible or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells using displacement encoding scales
G01D 5/38 - Forming the light into pulses by diffraction gratings
G01B 11/14 - Measuring arrangements characterised by the use of optical techniques for measuring distance or clearance between spaced objects or spaced apertures
10.
POSITION MEASURING ARRANGEMENT AND METHOD FOR OPERATING A POSITION MEASURING ARRANGEMENT
The present invention relates to a position measuring arrangement and a method for operating same in order to determine the relative position of two objects which are arranged movably in relation to one another along at least two degrees of freedom. To this end, at least one material measure (10) is provided, said material measure being connected to one of the two objects and having at least one measurement gradation (11). Further, at least two sensing units (20.1, 20.2) are provided, said sensing units being connected to the other one of the two objects. The sensing units (20.1, 20.2) each comprise optical sensing units which serve to form a sensing beam path in order to optically sense the measurement gradation and produce position-dependent sensing signals thereabout. At least one sensing unit occasionally senses at least one second measurement gradation in addition to a first measurement gradation. Said sensing unit is arranged and/or embodied in such a way that a modification of the working range is causable by sensing the different measurement gradations, said working range being set in respect of the spatial arrangement of sensing unit and material measure and in which working range the sensing unit can produce position-dependent sensing signals.
G01D 5/347 - Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using optical means, i.e. using infrared, visible or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells using displacement encoding scales
G01D 5/38 - Forming the light into pulses by diffraction gratings
G01B 11/14 - Measuring arrangements characterised by the use of optical techniques for measuring distance or clearance between spaced objects or spaced apertures
11.
DEVICE FOR MEASURING THE VIBRATION AMPLITUDE OF A CAPILLARY OF A WIRE BONDER
The invention relates to a device for measuring the vibration amplitude of a capillary of a wire bonder. The capillary is placed between a light source and a detector assembly such that the vibration amplitude can be determined from the blocking of a beam by the capillary. The beam emitted by the light source is split into a measurement beam and a reference beam. In the vibrating state, an edge of the capillary at least partially blocks the measurement beam, while the reference beam is not blocked. The detector assembly comprises a measurement detector associated with the measurement beam and at least one reference detector associated with the reference beam. The vibration amplitude of the capillary can be determined from the output signals of the measurement detector and of the reference detector, which output signals are connected to each other.
B06B 3/02 - Processes or apparatus specially adapted for transmitting mechanical vibrations of infrasonic, sonic or ultrasonic frequency involving a change of amplitude
G01H 9/00 - Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by using radiation-sensitive means, e.g. optical means
B23K 20/10 - Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating making use of vibrations, e.g. ultrasonic welding
The invention relates to a device for the transmission of power supply signals and data signals between a position measuring device (10) and follower electronics (100), wherein the position measuring device (10) has two power supply terminals and two data transmission terminals for bidirectional, differential data transmission and the transmission of the power supply signals and the data signals over a main transmission path in the form of a mixed signal over a single line pair (25), wherein the device comprises a 4/2 line converter (20) which, on the measuring device side, has two power supply terminals and two data transmission terminals, which can be connected to the corresponding terminals of the position measuring device (10), and to which the mixed signal is fed by the follower electronics (100), and which is configured to remove the power supply signals and those data signals which enter from the follower electronics (100) in the 4/2-wire converter (20) from the mixed signal and to output said signals via the power supply terminals and the data transmission signals to the position measuring device (10), and introducing data signals which are transmitted from the position measuring device (10) to the follower electronics (100) into the mixed signal.
The invention relates to a device for an interferential measurement of a distance between two objects which are movably arranged relative to each other along at least one direction of movement. At least one light source and at least one splitter element are provided, wherein the splitter element splits a beam bundle emitted by the light source into at least two sub-beam bundles at a splitting location, said sub-beam bundles further propagating at different angles. The device further comprises at least one deflecting element which deflects the sub-beam bundle incident on the deflecting element in the direction of a combining location where the split sub-beam bundles are superimposed in an interferential manner. The beam paths of the sub-beam bundles between the splitting location and the combining location are designed such that the optical path lengths covered by the sub-beam bundles between the splitting location and the combining location are identical in the event of a change in the distance between the two objects. At least one detector arrangement is additionally provided for detecting distance-dependent signals from the superimposed pair of interferential sub-beam bundles.
G01B 11/02 - Measuring arrangements characterised by the use of optical techniques for measuring length, width, or thickness
G01B 11/14 - Measuring arrangements characterised by the use of optical techniques for measuring distance or clearance between spaced objects or spaced apertures
G01D 5/38 - Forming the light into pulses by diffraction gratings
G01D 5/26 - Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using optical means, i.e. using infrared, visible or ultraviolet light
The present invention relates to a position measuring device (10, 100, 200), comprising a position sensing unit (12), by means of which position signals resulting from the scanning of a code track (15, 115) by a scanning unit (13) can be converted into digital position values, a first interface unit (11) for communication with a control unit (20) via a data transmission channel (25) and a second interface unit (16, 116, 216) for communication with at least one peripheral unit (30, 130, 131, 230). According to the invention the first interface unit (11) is a wired interface and the second interface unit (16, 116, 216) is a wireless radio interface.
The invention relates to a device and method for detecting the position of an object in a machine tool. To this end, a camera (3) is used which supplies an image of the object (2) and of an object holder (1) to which the object is connected and the position of which within the machine tool is known. A first processing means allows the position of the object relative to the camera to be identified on the basis of geometric features of the object which are acquired from the image. A second processing means is used to identify the position of the object carrier relative to the camera on the basis of geometric features of the object holder which are acquired from the image. A third processing means finally is used to determine the relative position between the object holder and the object, which is sought, from the relative positions between the camera and the object or between the camera and the object holder.
The invention relates to a assembly for an angle-measuring device, comprising a first section having an angle scale for measuring a rotary movement about an axis, and a second section for fastening the assembly to a machine part. The assembly further comprises a third section which connects the first section to the second section. The third section has a first and a second joint, wherein the first joint is designed to be flexible in the axial direction, and the second joint is designed to be flexible in the radial direction.
G01D 3/036 - Measuring arrangements with provision for the special purposes referred to in the subgroups of this group mitigating undesired influences, e.g. temperature, pressure on measuring arrangements themselves
17.
GUIDE HAVING PASSIVE GRAVITY COMPENSATION AND VERTICALLY MOVABLY MOUNTED PLATFORM
The invention relates to a guide having passive gravity compensation by means of a magnet assembly (M1, M2, M3, M4), for guiding a first body (K1) relative to a second body (K1) in a vertical direction (R), comprising a spring guide (B), which enables movements between the first and second bodies (K1, K2) in the vertical direction and which blocks movements in all other directions, wherein moreover the first body (K1) is connected to a first magnet (M1) and the second body (K2) is connected to a second magnet (M2), wherein the second magnet (M2) has an opening in which the first magnet (M1) is arranged at least partially such that a repellant force acts between the first and second magnets (M1, M2), which are magnetized parallel to the vertical direction (R), but are magnetized oppositely, said repellant force opposing the force of gravity of the first body, wherein the positive mechanical rigidity of the spring guide (B) is compensated for at least partially by a negative rigidity of the magnetic spring formed by the first and second magnets (M1, M2), and wherein the first and second magnets (M1, M2) are shaped such that a horizontal gap (d) between the first and second magnets (M1, M2) varies in the vertical direction (R) inside the opening of the second magnet (M2). A platform mounted by means of such guides is also described.
The invention relates to a scanning unit for a position measuring device comprising an assembly of light receivers (101, 102, 111, 112) mounted on a carrier (3). A transparent shielding layer (5) is provided on the carrier (3), wherein said transparent shielding layer shields the assembly of light receivers (101, 102, 103, 112) against disruptive electric fields.
G01D 5/347 - Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using optical means, i.e. using infrared, visible or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells using displacement encoding scales
19.
SCANNING UNIT FOR AN OPTICAL POSITION MEASURING DEVICE
The invention relates to a scanning unit for an optical position measuring device. Said unit comprises at least one light source and a detector assembly having at least one incremental signal detector region and a reference signal detector region. The incremental signal detector region is designed as a structured detector assembly which comprises a plurality of groups of individual detector elements. The in-phase detector elements of multiple groups are electrically interconnected in order to generate incremental partial signals. The reference signal detector region comprises a plurality of identically designed detector elements. Individual detector elements are electrically interconnected in order to generate reference signals. A transparent insulating layer is arranged above the detector elements of the incremental signal detector region and/or of the reference signal detector region. Said layer has at least one contacting opening above each of a plurality of predetermined detector elements, via which opening the corresponding detector elements can be electrically connected to each other.
G01D 5/347 - Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using optical means, i.e. using infrared, visible or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells using displacement encoding scales
The present invention relates to a Carbon Fiber Reinforced Plastic (CFRP) beam of plate structure; more specifically, it relates to a CFRP beam of plate structure (20) constituting structural material used in building materials, structures, automobiles, vessels, etc. The CFRP beam of plate structure according to the present invention is constituted by a CFRP plate (11); multiple flex preventing members (21) for preventing the flexing of the CFRP plate; an aluminum plate (22) equipped on the flex preventing members; and multiple support blocks (31) for supporting the aluminum plate.
The invention relates to a scanning unit (10), comprising a light source (13), the dissipation heat of which is diverted to a heat sink (11) by way of a heat guide path. Said heat guide path is formed by a circuit board (14), to which the light source (13) is attached, and continues on to a main body (11), which serves as a heat sink. In order to optimize the heat transfer from the circuit board (14) to the main body (11, a solder material (41, 42) is applied to the circuit board (14), onto which an intermediate element (61, 62) is pressed by way of a pressure element (71, 72). As a result of the pressure applied, a tight contact between the solder material (41, 42) and the intermediate element (61, 62) is established, thus guaranteeing low heat transfer resistance. The intermediate element (61, 62), on the other hand, is connected to the main body (11).
G01D 5/347 - Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using optical means, i.e. using infrared, visible or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells using displacement encoding scales
22.
ASSEMBLY COMPRISING A MEASURING STICK ATTACHED TO A CARRIER, AND METHOD FOR HOLDING A MEASURING STICK AGAINST A CARRIER
According to the invention, a measuring stick (1) is held against a carrier (2) by pneumatic suction. The measuring stick (1) is held against the carrier (2) by way of supports (12) arranged in two-dimensional distribution and spaced apart from one another, wherein the mutual center distance (A) of the supports (12) is smaller than the thickness (D) of the measuring stick (1).
G01D 5/347 - Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using optical means, i.e. using infrared, visible or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells using displacement encoding scales
The present invention relates to a position measuring device suited for detecting the relative position of a sampling unit and a reflection material measure that can be moved at least in one measuring direction. The sampling unit comprises a primary light source and at least one detector assembly within a detection plane. In the detection plane, a periodical arrangement of point light sources can be created using the primary light source. The primary light source is arranged above the detection plane.
G01D 5/347 - Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using optical means, i.e. using infrared, visible or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells using displacement encoding scales
24.
MODULE FOR AN ANGLE MEASURING DEVICE AND CORRESPONDING ANGLE MEASURING DEVICE
The invention relates to a module for an angle measuring device, comprising a dividing disc (1.3) made of a first material having a first longitudinal expansion coefficient (α1.3) and a carrier element (1.4, 1.4') made of a second material having a second longitudinal expansion coefficient (α1.4). The difference between the second longitudinal expansion coefficient (α1.4) and the first longitudinal coefficient (α1.3) is at least 3-10-6-K-1. The dividing disc (1.3) is attached to the carrier element (1.4, 1.4') by means of an adhesive bond, wherein the adhesive bond comprises an axial adhesive layer (1.1, 1.1') and a radial adhesive layer (1.2). The axial adhesive layer (1.1, 1.1') and the radial adhesive layer (1.2) disposed in an axial gap (Sa, Sa') and radial gap (Sr) respectively, each between the carrier element (1.4, 1.4') and the dividing disc (1.3). The two adhesive layers (1.1, 1.2) comprise different adhesives. The invention further relates to an angle measuring device having said module.
G01D 5/347 - Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using optical means, i.e. using infrared, visible or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells using displacement encoding scales
25.
METHOD FOR MOUNTING A MODULAR ROTARY ENCODER AND A MODULAR ROTARY ENCODER
A mounting method for modular rotary encoders and modular rotary encoders provide accurate location determination with a simple user alignment operation, which is easily reproduced and assembled and has also a simple configuration. The mounting method for mounting a modular rotary encoder on the object to be measured, in which the modular rotary encoder includes a code disc and an electrical circuit unit, and in which the code disc is mounted on the axis of rotation includes: disposing the code disc on the axis of rotation; adjusting the code disc along the axis of rotation so as to cause the distance from the object to be measured to correspond to a predetermined value; and (c) then fixing the electrical circuit unit to the object to be measured.
G01D 5/347 - Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using optical means, i.e. using infrared, visible or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells using displacement encoding scales
An encoder device has a base unit for measuring the displacement of a member subject to measurement, and a back-up power source as the back-up power source for the main power source to supply power to the encoder base unit. A first battery supplies a first back-up voltage as the regulated voltage in respect of the back-up power source output terminal means. A second battery supplies a second back-up voltage, which is similar or lower than the first back-up voltage, when the output voltage of said first battery declines (Figure 1).
G01D 5/245 - Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means generating pulses or pulse trains using a variable number of pulses in a train
27.
DEVICE AND METHOD FOR THE AUTOMATED DETECTION OF AN INTERFACE
The present invention relates to a device and to a method for the automated detection of an interface between a position measuring device (10) and a downstream electronic unit (110), which are interconnected by way of a data transmission channel (100), wherein the position measuring device (10) comprises an interface unit (20) and a position measuring unit (30). The interface unit (20) is connected, first, to the data transmission channel (100) and, secondly, to the position measuring unit (30) for the purpose of internal data exchange. In the interface unit (20), the interface to the downstream electronic unit (110) can be selected from at least two interfaces. In the position measuring device (10) there is also an interface detection unit (200), which receives at least one input signal (E1, E2), arriving from the downstream electronic unit (110) by way of the data transmission channel (100), and which comprises means for defining the chronological sequence of signal edges of the at least one input signal (E1, E2) in conjunction with the signal state, and to an evaluation unit (260), in which the interface to the downstream electronic unit (110) can be detected by evaluating the chronological sequence defined and can be selected in the interface unit (20).
G05B 19/042 - Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
H04L 29/10 - Communication control; Communication processing characterised by an interface, e.g. the interface between the data link level and the physical level
H04L 29/06 - Communication control; Communication processing characterised by a protocol
28.
REVOLUTION COUNTER AND METHOD FOR DETERMINING THE NUMBER OF REVOLUTIONS OF A SHAFT
The invention relates to a revolution counter for determining the number of revolutions of a shaft (W), wherein sensors (10, 11) are provided to detect the angular position of the shaft (W), wherein position values (P0, P90) can be generated in a pulsed manner at a scanning rate (SR) using the sensors, wherein the position values are fed to a determination unit (30), in which decision signals (K1, K2, K3, K4) that encode the angle ranges of the shaft (W) can be generated from the position values (P0, P90). Said angle ranges alternately comprise counting ranges (C1, C2, C3, C4) and uncertainty ranges (U1, U2, U3, U4). The decision signals (K1, K2, K3, K4) are fed to a counting control unit (40), which sets the scanning rate (SR) and generates counting signals (UP, DOWN) for a counter (50) according to the chronological sequence of the angle ranges, wherein the counting control unit (40) reduces the scanning rate (SR) if no change of an angle range occurs after a defined number of scanning pulses (S) and increases the scanning rate (SR) if a change of an angle range occurs, wherein the counting control unit (40) does not consider uncertainty ranges (U1, U2, U3, U4) that border on the last recognized counting segment (C1, C2, C3, C4) for the increase of the scanning rate (SR).
G01D 5/14 - Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
29.
CONTROLLER STRUCTURE FOR MULTIPLE MECHANICALLY COUPLED DRIVE UNITS
The invention relates to a controller structure for more than two drive units (10) which are mechanically coupled to a movable element (1). The controller structure has a position measurement device (4) for determining an actual position (Xact) of the movable element and a position controller (5) for calculating a target speed (Vnom) from a target position (Xnom) and the actual position, wherein the position measurement device and the position controller serve all drive units together. Every drive unit each has a dedicated speed controller (6). The drive units are configured either as masters or slaves, wherein individual drive units can also assume both functions. A torque master-slave controller (8) provides for equalization of torque between the drive units.
H02P 5/50 - Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors for speed regulation of two or more dynamo-electric motors in relation to one another by comparing electrical values representing the speeds
B23Q 5/10 - Driving main working members rotary shafts, e.g. working-spindles driven essentially by electrical means
G05B 19/416 - Numerical control (NC), i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by control of velocity, acceleration or deceleration
G05B 19/29 - Numerical control (NC), i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by positioning or contouring control systems, e.g. to control position from one programmed point to another or to control movement along a programmed continuous path using an absolute digital measuring device for point-to-point control
G05B 19/414 - Structure of the control system, e.g. common controller or multiprocessor systems, interface to servo, programmable interface controller
H02P 5/69 - Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors controlling two or more dc dynamo-electric motors mechanically coupled by gearing
The invention relates to an optical position measuring device for detecting the relative position of two objects that can move relative to each other, comprising a scanning unit and a reflection measurement body, each connected to the objects. Relative position information results from the interfering superposition of at least two partial beam measurement bundles and at least one reference partial beam bundle. To this end, the scanning unit comprises various optical components. Said components are disposed such that an impinging beam bundle is split into at least one measurement beam bundle or into at least two partial measurement beam bundles and into at least one partial reference beam bundle in the scanning unit. The at least one measurement beam bundle or the at least two partial measurement beam bundles act on the reflection measurement body and are split there so that at least two partial measurement beam bundles are reflected back in the direction of the scanning unit and each are brought into interfering superposition with a partial reference beam bundle. The at least one partial reference beam bundle does not act on the reflection measurement body. The superimposed partial measurement beam bundles and partial reference beam bundle are fed into a detector arrangement, by means of which the displacement-dependent scanned signals can be detected, from which position information can be derived regarding at least one lateral and one vertical displacement direction of the object. At least one splitting grating is disposed in the scanning unit for splitting into at least one measurement beam bundle or into at least two partial measurement beam bundles and into at least one partial reference beam bundle.
An absolute angle code (1) is designed as a single-track code. A part of a first code sequence (A) and a part of a second code sequence (B) are arranged in said track in an alternating manner. The code sequences (A, B) have different lengths, the lengths of both code sequences (A, B) preferably differing by 1. In order to determine an unambiguous absolute position (POS) during a rotation of the angle code (1), a decoding device (3) is provided which has its proper table (TA, TB) for each of the two code sequences (A, B) for decoding. The absolute position (POS) is determined from the obtained partial positions (xA, xB).
G01D 5/249 - Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means generating pulses or pulse trains using pulse code
G01D 5/347 - Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using optical means, i.e. using infrared, visible or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells using displacement encoding scales
H03M 1/28 - Analogue/digital converters pattern-reading type using relatively movable reader and disc or strip with non-weighted coding
An absolute angle code (1) comprises a first code sequence (A) and a second code sequence (B). The code sequences (A, B) have different lengths (LA, LB), the lengths (LA, LB) of both code sequences (A, B) preferably differing by 1. The aim of the invention is to make it possible to code a number M2 < 2 * KGV (LA, LB) of different positions arranged in an interleaved manner in a single track across 360° or a number M2 < KGV (LA, LB) of different positions arranged in two tracks across 360° using said code sequences (A, B), with KGV (LA, LB) being the lowest common multiple of LA and LB. For this purpose, at least one of the code sequences (A, B) is incomplete and forms a discontinuity (ST) at the transition towards the next code sequence (A, B). In order to determine an unambiguous absolute position (POS) during a rotation of the angle code (1), a decoding device (3) is provided which has its proper table (TA, TB) for each of the two code sequences (A, B) for decoding. An additional table (TSTA) is provided for decoding at the discontinuity (ST). The absolute position (POS) is determined by decoding the obtained partial positions (XA, XB, XSTA).
G01D 5/245 - Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means generating pulses or pulse trains using a variable number of pulses in a train
G01D 5/249 - Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means generating pulses or pulse trains using pulse code
G01D 5/347 - Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using optical means, i.e. using infrared, visible or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells using displacement encoding scales
H03M 1/28 - Analogue/digital converters pattern-reading type using relatively movable reader and disc or strip with non-weighted coding
33.
ABSOLUTE POSITION CODE AND POSITION MEASURING DEVICE
An absolute position code (1) is designed as a single-track code. It consists of a plurality of code sequences (A, B) which have different lengths (LA, LB) and which, when combined, absolutely encode a measurement range in an unambiguous manner. For this purpose, code elements of the plurality of code sequences (A, B) are arranged according to a predetermined sequence which forms a segment that in turn is repeatedly arranged one after the other within the measurement range. In order to be able to absolutely encode an as wide a measurement range as possible in an unambiguous manner, each of the segments comprises at least three code elements. In order to determine an unambiguous position (POS) within the measurement range of the position code (1), a decoding device (3) is provided which has a table (TA, TB) for each of the two code sequences (A, B) for decoding. The absolute position (POS) is determined from the obtained partial positions (xA, xB) within the plurality of code sequences (A, B).
G01D 5/249 - Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means generating pulses or pulse trains using pulse code
G01D 5/347 - Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using optical means, i.e. using infrared, visible or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells using displacement encoding scales
The invention relates to a length measuring device comprising a scale (20) arranged inside a housing (22) and a sensor chip (13) of a scanning unit (10) that scans the scale (20). The heat generated by the sensor chip (13) of the scanning unit (10) is specifically directed in the direction of the housing (22). For this purpose, a thermally conductive element (19) is coupled to the sensor chip (13). Said thermally conductive element leads to the housing (22) and transfers the heat to the housing (22) across a small gap (L).
G01D 5/347 - Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using optical means, i.e. using infrared, visible or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells using displacement encoding scales
G12B 7/00 - Compensating for the effects of temperature
An absolute position coding (1) comprises mutually parallel code tracks (11, 12). One code track (11) has a first code sequence (A) in succession, and the other code track (12) has a second code sequence (B) in succession. Within the measurement range to be determined in absolute terms, multiple first code sequences (A) are arranged in the one code track (11) and second code sequences (B) are arranged in the additional code track (12). Each of the two code sequences (A, B) comprise a sequence of code elements, which have the same dimensions in the measurement direction (X). The number of code elements within the two code sequences (A, B) is different, so that the code sequences (A, B) have different lengths (LA, LB). By sampling the code tracks (11, 12) by means of a sampling unit (2), partial positions (XA) are obtained within the first code sequence (A), defining a unique absolute position (POS) over the measurement range in combination with the respective partial position (XB) within the second code sequence (B).
G01D 5/245 - Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means generating pulses or pulse trains using a variable number of pulses in a train
G01D 5/249 - Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means generating pulses or pulse trains using pulse code
G01D 5/347 - Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using optical means, i.e. using infrared, visible or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells using displacement encoding scales
H03M 1/28 - Analogue/digital converters pattern-reading type using relatively movable reader and disc or strip with non-weighted coding
36.
DEVICE AND METHOD FOR THE DATA TRANSFER BETWEEN A POSITION MEASUREMENT DEVICE AND SUBSEQUENT ELECTRONICS
The invention relates to a device and to a method for the data transfer between a position measurement device (10) and subsequent electronics (110) via a data transfer channel (100). The position measurement device (10) comprises an interface unit (20) and a processing unit (30), wherein the interface unit (20) is connected both to the data transfer channel (100) and to the processing unit (30) for the purpose of an internal data exchange by means of a requesting channel (REQ) and a response channel (RSP). The interface unit (20) comprises a command interpreter (21), by means of which commands received via the data transfer channel (100) may be converted into internal requests through the utilization of conversion rules (R0..Rn; Rn+1), and may be fed to the processing unit (30) via the requesting channel (REQ), and response data received from the processing unit (30) via the response channel (RSP) may be converted into output data. The interface unit (20) further comprises a control memory (24) for storing the conversion rules (R0..Rn; Rn+1), said memory able to be modified at least in part.
G01D 5/244 - Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means generating pulses or pulse trains
The present invention relates to a multiturn rotary encoder having a single-turn code disc (10) which is connected to a shaft (W) such that they rotate together and has a code track (11) which can be scanned by a single-turn scanning unit (12) in order to determine the absolute position within one revolution of the shaft (W), a multiturn unit (18, 118) for measuring the revolution data which is suitable for determining the number of revolutions carried out by the shaft (W), and an evaluation unit (13) which is connected to the multiturn unit (18, 118) via at least two digital interfaces (25, 35, 45, 125, 135) for transmitting the revolution data. The invention is characterized in that the revolution data comprises at least two data words (24, 34, 44, 124, 134) which have a different rate of change during rotation of the shaft (W), in that the interface (25, 35, 45, 125, 135) for transmitting the data word with the highest rate of change to the evaluation unit (13) is a parallel interface and in that the interface (25, 35, 45, 125, 135) for transmitting the data word with the lowest rate of change to the evaluation unit (13) is a serial interface.
G01D 5/347 - Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using optical means, i.e. using infrared, visible or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells using displacement encoding scales
38.
ARRANGEMENT AND METHOD FOR GENERATING A REFERENCE IMPULSE FOR A POSITION MEASURING DEVICE
The invention relates to an arrangement and to a method for generating a reference impulse (RI) for a position measuring device comprising a material measure (10) having at least one incremental track (20) and at least one reference mark (32), and to a scanning device (40) for generating position signals (PO, P90) by scanning the at least one incremental track (20) and for generating an analog reference impulse (RI_A) by scanning the at least one reference mark (32). The arrangement according to the invention comprises a reference impulse storage unit (200), in which the analog reference impulse (RI_A) can be stored as a stored reference impulse (RI_M). The stored reference impulse (RI_M) and the at least one position signal (PO, P90) are fed to a reference impulse generating unit (220) which switches on reference impulse (RI) according to the stored reference impulse (RI_M) and to the occurrence of a set condition and which switches off the reference impulse when a reset condition occurs, wherein the set and reset conditions can be derived from the at least one position signal (PO, P90). The invention further relates to a position measuring device having an arrangement according to the invention.
G01D 5/245 - Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means generating pulses or pulse trains using a variable number of pulses in a train
The invention relates to an angle measuring device comprising a first component group (10) and a second component group (20), wherein the component groups (10, 20) are arranged so as to be able to rotate relative to each other through a bearing (11.1, 21, 23, 30). The first component group (10) comprises a housing (11) having a connection device (11.31) and a scanning device (12). The second component group (20) comprises a shaft (21), to which a code disk (22) is fastened, and a flow channel (21.1) having a directional component parallel to the axis (Z). The angle measuring device is configured in such a way that a negative pressure (p0) can be applied to the connection device (11.31) so that a fluid surrounding the angle measuring device at a pressure (P1) flows through the angle measuring device to suck away contaminants. At the applied negative pressure (p0), a first fluid mass flow (m1) flowing through the flow channel (21.1) is greater than a second mass flow (m2) flowing through the bearing gap (S).
The invention relates to an inductive position sensor comprising an electronic circuit (3), which is designed in such a way that initially three digital signals (S3.51, S3.52, S3.53; S3.61, S3.62, S3.63) can be produced from the signals (S1.11, S1.12, S1.13; S1.21, S1.22, S1.23) detected by three receiver conductor paths (1.11, 1.12, 1.13; 1.21, 1.22, 1.23). It is also possible to determine at least two position values (P, 3.71, P3.72; P3.81, P3.82, P3.83) by combining the three digital signals (S3.51, S3.52, S3.53; S3.61, S3.62, S3.63), and said position values (P, P3.71, P3.72; P3.81, P3.82, P3.83) can be guided to a comparator (3.20, 4.1). The invention also relates to a method for operating an inductive position sensor, to a measuring system which comprises, in addition to the position sensor, a data interface (5.20, 4.20) and subsequent electronics (4) which comprise the comparator (4.1).
G01D 5/20 - Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature
The invention relates to an optical position measuring device which is used to determine the relative position of a sampling unit and a material measure which can be displaced at least in one measuring direction and which is arranged on the material measure plane. Said material measure extends along a first straight line or a curved line. Said sampling unit comprises a light source and a detector arrangement which extends along a second line and which is arranged on a detection plane, said curve being different from the first straight line or the first curved line. A stripe pattern resulting in the sampling of the material measure transforms into a stripe pattern extending along the second line. The material measure plane and the detection plane are not parallel to each other for transformation.
G01D 5/347 - Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using optical means, i.e. using infrared, visible or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells using displacement encoding scales
42.
DEVICE AND METHOD FOR COLLISION MONITORING IN A MACHINE TOOL
A numeric controller for a machine tool is equipped for the anticipatory monitoring of parts of the machine tool (10) movable relative to each other for impending collisions. For this purpose, the monitoring is based on a geometric and kinematic description of the machine tool (10). Chucking means (1, 2, 3) for attaching a workpiece on a workpiece table (4, 5) are also included in the monitoring device, in that chucking means descriptions (8) are stored in the numeric controller (11), which describe the chucking means (1, 2, 3) actually present in a machining chamber of the machine tool (10) such that the same are integral parts of the geometric and kinematic description of the machine tool (10).
G05B 19/4061 - Avoiding collision or forbidden zones
G05B 19/4093 - Numerical control (NC), i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by part programming, e.g. entry of geometrical information as taken from a technical drawing, combining this with machining and material information to obtain control information, named part programme, for the NC machine
The present invention relates to an optical position measuring device for detecting the position of two objects that are movable relative to each other in at least one measuring direction. The position measuring device has a material measure connected to one of the two objects, said measure comprising an incremental scale extending in the measuring direction, and at least one reference marking at a reference position. The reference marking comprises two reference marking partial fields being disposed mirror-symmetrically relative to a reference marking symmetry axis, each of said partial fields consisting of a structure, extending in the measuring direction, having a locally changing graduation period. The position measuring device further has a scanning device connected to the other of the two objects, wherein scanning means are associated with the scanning device, said means being used for generating at least one reference signal at the reference position. The scanning means comprise at least one light source that emits in a divergent manner in the direction of the material measure, and a detector arrangement having elements that are disposed along the measuring direction such that starting from a central detector arrangement symmetry axis and extending in the measuring direction, the center distances between adjacent elements change in the same direction as they do starting from the reference marking symmetry axis of the graduation periods of the structures in the reference marking partial fields.
The invention relates to an angle measuring device comprising a stator (1) and a rotor (2), wherein the rotor (2) is arranged so as to be rotatable relative to the stator (1). The rotor (2) comprises a shaft (2.1) to which a code disk (2.2) is fastened in a rotationally fixed manner. The stator (1) comprises a body (1.3), a scanning device (1.31) for scanning the code disk (2.2), and a compensating coupling (1.2). A radially and axially elastic but torsionally rigid connection of the stator (1) to a machine part (5.1) can be established by the compensating coupling (1.2). According to the invention, an element (4; 4') is arranged between the compensating coupling (1.2) and the body (1.3), is in contact both with the compensating coupling (1.2) and with the body (1.3), and has a vibration-damping property.
G01D 5/347 - Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using optical means, i.e. using infrared, visible or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells using displacement encoding scales
45.
ENCODER DEVICE AND ALIGNMENT DEVICE FOR AN ENCODER DEVICE
An encoder device (5) includes: an encoder base (8); a hub (15) rotatably arranged in the encoder base (8) and arranged to carry an encoder disc; and an alignment device (12) arranged to urge the hub (15) into a predetermined axial and radial position relative to a portion of the housing, the alignment device (12) including a contact portion (30) arranged to contact an axial surface (31) of the encoder base (8), a locating structure (47, 52) arranged to maintain the alignment device (12) in a predefined radial position, a flange structure (32) arranged to contact an axial surface of the hub (15) and a circumferential portion of the hub (15), and a spring structure (40) arranged to urge the hub (15) axially toward the flange element, where the alignment device (12) urges the hub (15) into a predetermined axial and radial position relative to a portion of the encoder base (8), and the spring structure (40) contacts the hub (15) so as to form a detent, the detent allowing the alignment device (12) to be removed from the hub (15) by pulling the alignment device (12) axially away from the hub (15).
G01D 5/347 - Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using optical means, i.e. using infrared, visible or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells using displacement encoding scales
46.
ROTARY TRANSDUCER AND SERIES OF ROTARY TRANSDUCERS
The invention relates to a rotary transducer comprising a stator (1) and a rotor (2), wherein the rotor (2) is arranged so as to be able to rotate relative to the stator (1) using a bearing (3). The rotor (2) comprises a shaft (2.1), wherein a positively engaging device (2.11) and a code disk (2.2) are fastened on the shaft (2.1) in a rotationally fixed manner. The stator (1) comprises a body (11) having a scanning device (1.11) for scanning the code disk (2.2), a compensating coupling (1.2), and a housing (1.3). The body (1.1) is connected to the housing (1.3) by way of the compensating coupling (1.2). The housing (1.3) comprises an additional positively engaging device (1.31), wherein the rotary transducer is pre-adjusted in such a way that during operation of the rotary transducer with a predefined relative angular position between the positively engaging device (2.11) of the shaft (2.1) and the additional positively engaging device (1.31) of the housing (1.3), a predefined angle value can be output by the rotary transducer. The invention further relates to a series of rotary transducers.
G01D 5/249 - Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means generating pulses or pulse trains using pulse code
G01D 5/347 - Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using optical means, i.e. using infrared, visible or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells using displacement encoding scales
There is provided an encoder having a rotation restricting member that is generally applicable, does not require a process such as screwing when attached to the encoder, and can be easily attached in a short period of time. Further, the rotation restricting member can be attached only from a specific one direction, and can be mounted mechanically. The encoder includes a rotor that is coupled to a rotation axis (19) of a measured subject (3); a stator (2) that rotatably supports the rotor; and a rotation restricting member (1) that locks the stator to the measured subject (3), the rotation restricting member (1) including: a coupling part (11) that functions as a base; a convex fixing part (15) that extends along the rotation axis from the coupling part (11) toward the stator (2); and an attaching part (13) that extends in any direction from the coupling part (11) or is formed integrally with the coupling part (11), and the stator (2) having, at least on an attachment surface, a concave fixing part (21) that is concave in a direction along the rotation axis, wherein the convex fixing (15) part is inserted or press fitted into the concave fixing part (21) so as to be locked thereto.
G01D 5/347 - Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using optical means, i.e. using infrared, visible or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells using displacement encoding scales
A scale (2) of a position-measuring device is attached to a support (3) by means of a clamping element (1). The clamping element (1) has a first spring arm (11) which pushes the scale (2) against an attachment surface (31) with a first clamping force (F1). The clamping element (1) has a second spring arm (12) which pushes the scale (2) with a second clamping force (F2) against a stop surface (32) running perpendicularly to the attachment surface (31). The first clamping force (F1) and the second clamping force (F2) are introduced together by the clamping element (1) being attached to the support (3).
G01D 5/347 - Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using optical means, i.e. using infrared, visible or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells using displacement encoding scales
49.
DEVICE AND METHOD FOR THE SERIAL DATA TRANSMISSION BETWEEN A POSITION MEASURING DEVICE AND A CONTROL UNIT
The present invention relates to a device and a method for the serial data transmission between a position measuring device (200) and a control unit (100), comprising an interface unit (110) on the control side and an interface unit (210) on the side of the measuring device, which are connected to each other for transmitting serial data packets by means of a bidirectional data channel (300). The interface unit (110) on the control side comprises a sender unit (120) on the control side for sending serial data packets via the data channel (300) to a receiver unit (230) on the side of the measuring device arranged in the interface unit (210) on the measuring device side. The interface unit (210) on the measuring device side comprises a sender unit (220) on the measuring device side for sending serial data packets via the data channel (300) to a receiver unit (130) on the control side arranged in the interface unit (110) on the control side. Data packets sent from the sender unit (120) on the control side comprise a clock sequence (TS), from the time line of which the frequency of an underlying sender clock signal (CU_TXC) of the transmission can be derived. The receiver unit (230) on the measuring device side comprises a clock detection unit (240) on the measuring device side, said unit evaluating the clock sequence (TS) and generating a receiver clock signal (EC_RXC) on the measuring device side for reading output data (CU_DO) on the control side present in the data packet. The frequency of said signal largely corresponds to that of the sender clock signal (CU_TXC) on the control side.
The invention relates to a position measuring system comprising a scale carrier, which has a measuring graduation on a first surface reflecting electromagnetic radiation along a measuring direction, and comprising a scanner head for scanning the measuring graduation, which has a transmitter for transmitting electromagnetic radiation onto the measuring graduation and a receiver for receiving radiation reflected by the measuring graduation, wherein the scale carrier and the scanner head as components separate from each other form an open position measuring system such that the space between the scale carrier and the scanner head is not closed off from the surrounding area and the scale carrier and the scanner head can be brought into arbitrary relative positions along the measuring direction. A wrap-around element (3) that can be moved together with the scanner head (2) relative to the scale carrier (1) projects from the scanner head (2) and wraps around the scale carrier (1) upon proper arrangement of the scanner head (2) in regard to the scale carrier (1) such that a section (3a) of the wrap-around element (3), referred to as a protective section, extends in front of a second surface (12) of the scale carrier (1) facing away from the first surface (11) provided with the measuring graduation (15, 16, 17).
G01D 5/347 - Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using optical means, i.e. using infrared, visible or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells using displacement encoding scales
The present invention relates to an optical position measuring device for detecting a relative position of a scanning unit, and a material measure that can be moved for this purpose in at least one measuring direction. In a first variant, the scanning unit comprises a light source, at least one scanning grating, a detector arrangement, and an attenuation structure, by means of which the light intensity on the detector arrangement can be specifically set. The scanning grating and the attenuation structure are disposed on the front and rear sides of a transparent carrier element in the scanning beam path. In a second variant, the scanning unit comprises a light source, a detector arrangement, and an attenuation structure. The attenuation structure has a perviousness that varies at least in one direction as a function of the location such that a light intensity results that is uniform at least in said direction on the detector arrangement.
G01D 5/38 - Forming the light into pulses by diffraction gratings
G01D 5/347 - Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using optical means, i.e. using infrared, visible or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells using displacement encoding scales
52.
ENCODER DEVICE AND GAPPING AND CENTRING DEVICE FOR AN ENCODER DEVICE
An encoder device (5, 6) includes: a housing (10); a hub (15) arranged in the housing (10), the hub (15) arranged to carry an encoder disc (20), the hub (15) rotatable in the housing (10); a cover (30, 31 ) that is axially movable between a first position and a second position; and a gapping and centring device (35) arranged to urge the hub (15) into a predetermined axial and radial position relative to a portion of the housing (10) when the cover (30, 31 ) is in the first position, the gapping and centring device (35) arranged to permit axial and radial movement of the hub (15) when the cover (30, 31 ) is in the second position.
G01D 5/347 - Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using optical means, i.e. using infrared, visible or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells using displacement encoding scales
The invention relates to a position measuring device, wherein, on the one hand, a code word (CW) defining the absolute position and, on the other hand, a periodic incremental signal (IN) are derived from a serial code (1). In order to generate an incremental signal (IN), an arrangement (11) is provided which converts the scanning signals (A1 to A8) in such a manner that the incremental signal (IN) is produced by adding up the converted scanning signals (TA1 to TA8). Advantageously, this conversion leads to the formation of a difference signal by comparison of the scanning signal (A1 to A8) to a reference signal and to a rectification of the difference signal.
G01D 5/245 - Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means generating pulses or pulse trains using a variable number of pulses in a train
G01D 5/249 - Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means generating pulses or pulse trains using pulse code
G01D 5/347 - Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using optical means, i.e. using infrared, visible or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells using displacement encoding scales
54.
ANGLE-MEASURING DEVICE AND LINE OF PRODUCTS COMPRISING SAID ANGLE-MEASURING DEVICES
The invention relates to the standardization of angle-measuring devices. A scanning device (20) is designed in such a manner as to be suitable for scanning a first closed code (C1) and a second closed code (C2). The second code (C2) is a joined section (V) of subsequent code elements (A3 to A13) of the first code (C1). The angle-measuring device comprises a scanning device (20), the decoding device (30) of which can be operated in a first or in a second mode of operation depending on an identification (ID) which defines the codes (C1, C2) to be decoded in such a manner that they are distinct. In the first mode of operation, the first code (C1) is decoded by a decoding table (T2) having a first and a second set of values. In the second mode of operation, the section (V) of the second code (C2) which corresponds to the first code (C1) is also decoded by the first set of values of the decoding table (T2) and the new sequence of code elements of the second code (C2), which is formed at the joint (ST2) by joining the section (V) taken over from the first code (C1), is decoded by an additional small decoding table (T5) having a third set of values.
G01D 5/249 - Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means generating pulses or pulse trains using pulse code
H03M 1/28 - Analogue/digital converters pattern-reading type using relatively movable reader and disc or strip with non-weighted coding
55.
INDUCTIVE ROTATIONAL ANGLE SENSOR AND METHOD FOR OPERATING AN INDUCTIVE ROTATIONAL ANGLE SENSOR
The invention relates to an inductive rotational angle sensor comprising a circuit board (1) with an excitation conduction path (1.4) and a first, second and third receiver conduction path (1.1 1, 1.12, 1.21, 1.22, 1.31, 1.32) attached thereto. The rotational angle sensor further comprises a partitioning element (2) with a first and second partitioning track (2.2). The first and second partitioning track (2.1, 2.2) and the first and second receiver conduction path (1.1 1, 1.12; 1.21, 1.22) are configured such that signals (S1.1 1, S1.12) with a first period number (n1) can be produced by the first receiver conduction path (1.1 1, 1.12) and signals (S1.21, S1.22) with a second period number (n2) can be produced by the second receiver conduction path (1.21, 1.22). The partitioning element (2) further comprises a third partitioning track (2.3) so that signals (S1.31, S1.32) with the first period number (n1) can be produced by the third receiver conduction path (1.31, 1.32). The invention also comprises a method for operating a rotational angle sensor (Figure 1).
G01D 5/20 - Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature
56.
COMPONENT ARRANGEMENT AND METHOD FOR PRODUCING A COMPONENT ARRANGEMENT
A component arrangement and a method for producing it are specified. The component arrangement comprises a carrier element, on which a semiconductor component is arranged, which is electrically connected to at least one contact area on the carrier element via at least one contact-making bonding wire. The contact-making bonding wire is embedded into a potting, comprising a potting compound. Uncontrolled flowing of the potting compound is prevented at least in a partial region by flow stop means. At least one flow stop bonding wire is arranged as flow stop means at the boundary between the potting surface and the component-side contact area of the semiconductor component.
H01L 23/24 - Fillings characterised by the material, its physical or chemical properties, or its arrangement within the complete device solid or gel, at the normal operating temperature of the device
57.
ANGLE MEASURING SYSTEM AND METHOD FOR PRODUCING AN ANGLE MEASURING SYSTEM
The invention relates to an angle measuring system comprising one first component group (1) and one second component group (2). The first component group (1 ) is rotationally mounted about an axis (A) in relation to the second component group (2). The first component group (1 ) comprises a ring (1.1) having a running surface (1.14) and angle scaling (1.21 ). The second component group (2) comprises another ring (2.1) having another running surface (2.14) and a sensor (2.2) for scanning the angle scaling (1.21). Rolling bodies (3) are arranged between the running surfaces (1.14, 2.14). Angle scaling (1.21 ) is arranged in such a manner that a geometric pattern of the angle scaling (1.21 ) in a first range (U1) differs from a geometric pattern of the angle scaling (1.21 ) in a second range (U2) in accordance with radial deviations of the running surfaces (1.14, 2.14) and/or the rolling bodies (3).
G01P 3/44 - Devices characterised by the use of electric or magnetic means for measuring angular speed
G01P 3/487 - Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals delivered by rotating magnets
The invention relates to an angle measuring system comprising one first component group (1) and one second component group (2). The first component group (1) is rotationally mounted in relation to the second component group (2). The first component group (1) comprises a ring (1.1) having a running surface (1.14) and angle scaling (1.21). The second component group (2) comprises a sensor (2.2) for scanning the angle scaling (1.21) and a circuit board (2.3) with an electronic circuit (2.31) for evaluating signals of the sensor (2.2) that can be generated by scanning. The second component group (2) also comprises a solid ring (2.1) on which another running surface (2.14) is arranged and which comprises a first recess (2.11) for receiving the circuit board (2.3) and a second recess (2.12) for receiving an electric conductor (2.4). Said conductor (2.4) electrically joins the sensor (2.2) to the electronic circuit (2.31) that is arranged at a distance from the sensor (2.3).
G01D 5/14 - Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
An XY table with a measuring arrangement for position determination is described, comprising a fixed reference part (B) and an intermediate part (F) that moves relative to the reference part (B) in a first direction (Y), with an object (O) that moves relative to the intermediate part (F) in a second direction (X), wherein a part to be processed (W) is disposed on the object (O) or on the reference part (B), and for the first direction (X) with at least one 1Dplus encoder (M1, M2) for measuring in-plane degrees of freedom (X, Y, Rz) between the reference part (B) and the intermediate part (F), and for the second direction (X) with at least one 1Dplus encoder (M3, M4) for measuring the in-plane degrees of freedom (X, Y, Rz) between the object (O) and the intermediate part (F), so that the position (Xo, Yo) of a tool center point (TCP) at the object (O) or part (W) can be detected. In the process, the 1Dplus encoder (M1, M2, M3, M4) is disposed constructively such that the projection thereof in the plane spanned by the first and second direction (X, Y), said plane containing the tool center point (TCP), lies within the entire range of motion of the XY table outside of part (W). This allows the maintenance of the Abbe condition and thereby the precise detection of the tool center point (TCP) at the object (O) using simple 1Dplus encoders.
G01B 5/00 - Measuring arrangements characterised by the use of mechanical techniques
G05B 19/401 - Numerical control (NC), i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by control arrangements for measuring, e.g. calibration and initialisation, measuring workpiece for machining purposes
The invention relates to a signal sampling method in which a) an output signal is sampled at particular times which are spaced apart from one another, and b) the signal sampling times are predefined by a clock signal. According to the invention, the clock rate of the clock signal (t) varies on the basis of time, with the result that the intervals (a) of time between the signal sampling times may vary in terms of time.
The present invention relates to an interferometer arrangement and a method for the operation thereof. The interferometer arrangement comprises an interferometer having an interferometer light source, the emitted radiation of which may be divided into a measurement arm and a reference arm, wherein a measured object is disposed in the measurement arm and the interferometer provides interferometer signals as a function of the position of the measured object. Detection means are further provided for detecting fluctuations in the refractive index of the air in the measurement and/or reference arm. The detection means comprise a spectrometer unit; the spectrometer unit comprises at least one spectrometer light source and at least one spectrometer detector unit. The ray bundles emitted by the spectrometer light source are overlaid with the ray bundles of the interferometer light source, wherein the spectrometer light source emits radiation with a wavelength in the range of an absorption line of at least one certain air component. The spectrometer detector unit serves to generate spectrometer signals that characterize the absorption of the air component with regard to the spectrometer light source wavelength in the measurement and/or reference arm.
The present invention relates to a detector element array for an optical position measuring device, which array can be used to convert a strip pattern resulting in a detection plane into electrical scanning signals. The detector element array comprises a plurality of light-sensitive detector elements which are arranged in rows and columns in the form of a matrix. At least some of the detector elements are assigned no more than two switches which can be used to optionally connect each detector element to adjacent detector elements directly. At least some of the detector elements are assigned a memory element which can store information which indicates the adjacent detector elements to which a particular detector element is connected via the two switches in a scanning configuration which has been set. The two switches can be used to optionally establish a direct connection to an adjacent detector element in the same column and/or a direct connection to a diagonally adjacent detector element in an adjacent column of an adjacent row.
G01D 5/347 - Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using optical means, i.e. using infrared, visible or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells using displacement encoding scales
The invention relates to a position measuring device used to measure the relative position of an object in relation to a tool having a tool center point. Said position measuring device consists of at least two intersecting scales that can be moved in relation to each other in at least one plane of movement, and an associated optical scanning unit generating position signals for at least one measuring device parallel to the plane of movement. Each scale comprises a neutral point of rotation about which a tipping of the respective scale does not cause any variation in the detected position. The optical scanning element ensures that the positions of the neutral points of rotation of the two scales coincide. The arrangement of the scales in relation to the tool center point ensures that the neutral points of rotation of the two scales and the tool center point are in a plane parallel to the plane of movement.
The invention relates to an optical position measuring device for detecting the relative position of a scanning unit and a scale that can be moved in relation to the scanning unit in at least one measuring direction. The scale is a combined structural unit comprising at least one reflector element and a measurement graduation. A light source and at least one detector element are associated with the scanning unit. The scanning unit comprises splitting means which split the beam of rays emitted by the light source into at least two partial beams of rays in the measuring direction, said partial beams of rays then propagating towards the scale.
G01D 5/347 - Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using optical means, i.e. using infrared, visible or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells using displacement encoding scales
G01B 11/00 - Measuring arrangements characterised by the use of optical techniques
65.
POSITION MEASURING DEVICE FOR DETERMINING THE POSITION OF TWO COMPONENTS DISPLACEABLE RELATIVE TO ONE ANOTHER
The invention relates to a position measuring device for determining the position of two components displaceable relative to one another, for example the carriage and the bed of a machine tool, comprising a measuring graduation extending along a measuring direction, a carrier body (1) carrying the measuring graduation, and a scanning device (2) scanning the measuring graduation, wherein the scanning device is guided displaceably in the measuring direction along the carrier body, and furthermore comprising a transport securing means (3) by which the scanning device (2) can be fixed in at least one transport position on the carrier body (1) such that the scanning device (2) is maintained in a predefinable position - in relation to the measuring direction - on the carrier body. It is provided according to the invention that fastening means (26a, 26b), which can be used to attach an assembly base (20) to one of the components (M1, M2) displaceable relative to one another, are coupled to the transport securing means (3) such that upon actuation of the fastening means (26a, 26b) the transport securing means (3) is released and the scanning device can be displaced along the measuring direction (V) in relation to the carrier body (1).
G01D 5/347 - Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using optical means, i.e. using infrared, visible or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells using displacement encoding scales
G01B 5/00 - Measuring arrangements characterised by the use of mechanical techniques
G01D 11/20 - Caging devices for moving parts when not in use
The invention relates to an angle measuring device comprising a first component (1) and a second component (2), which can be rotated relative to one another about an axis (A) (FIG. 1). The first component (1) is provided with a graduated disk (1.1), while on the second component (2) a scanning unit (2.2) for scanning the graduated disk (1.1) is disposed. An elastic coupling (3) is configured such that a relative displacement of the two components (1, 2) to each other in one direction, with one component parallel to the axis (A), is possible. In order to seal a gap between the first component (1) and the second component (2), a seal (4) is provided on the angle measuring device. The first component (1) and/or the second component (2) comprise a peripheral groove (1.21) perpendicular to the axis (A), wherein the seal (4) is configured such that a first region (4.1) of the seal (4) is supported inside the groove (1.21) on opposing walls (1.211) of the groove (1.21) (Figure 1).
G01D 5/347 - Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using optical means, i.e. using infrared, visible or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells using displacement encoding scales
F16J 15/32 - Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
67.
DEVICE FOR DETERMINING THE POSITION OF AN OBJECT WHICH IS MOVABLE ALONG AT LEAST ONE MOVEMENT DIRECTION
The invention refers to a device for determining the position of an object which is movable along at least one movement direction, wherein a linear measuring device for measuring the position of the object along the respective spatial direction is assigned to one or each displacement direction, with at least one scale (20, 30) extending along a displacement direction (x, y) of the object to be measured (10) as a first component of the respective linear measuring device (2, 3); with a scan head (25, 35) for scanning the scale (20, 30) as a second component of the respective linear measuring device (2, 3), such that a change in the position of the scale (20, 30) can be detected relative to the scan head (25, 35) along the assigned displacement direction (x, y) of the object to be measured (10), wherein one of the two components (20, 25; 30, 35) of the respective linear measuring device (2, 3) is moved together with said object, when the object to be measured (10) moves along the respective displacement direction (x, y); and with a device (12, 23; 13, 33) for determining the distance from the components (20, 30) of the respective linear measuring device (2, 3) that move together with the object to be measured (10), to the object to be measured (10), along the measuring direction (x, y) of the assigned linear measuring device (2, 3). According to the invention, the device (12, 23; 13, 33) for determining the distance from the components (20, 30) of the respective linear measuring device (2, 3) that move together with the object to be measured (10), to the object to be measured (10), consists of a measuring graduation (12, 13) as a first structural component and an assigned measuring head (23, 33) as a second structural component, wherein one of the two structural components (12, 29; 13, 39) is provided at the object to be measured (10), and the other structural component (12, 23; 13, 33) is provided at the components (20, 30) of the linear measuring device (2, 3) that move together with the object to be measured (10).
G01D 5/20 - Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature
68.
METHOD FOR HOLDING A SCALE ON A CARRIER AND ARRANGEMENT HAVING A CARRIER AND A SCALE
According to the invention, a scale (1) having a measuring graduation (15) is reliably and releasably held on a carrier (2) by means of electrostatic clamping.
G01D 5/347 - Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using optical means, i.e. using infrared, visible or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells using displacement encoding scales
In a sensing system (1) of a position measurement device for optoelectrically sensing a measuring pitch (21), the sensing pitch (51) is decoupled from other optical and/or electrical components (71, 72 ,73) which are required for sensing. A holder (8) having a spatial arrangement of solid hinged joints (81 to 86) which ensure statically determined positioning but compensate for thermally induced expansions in length is used for this purpose.
G01D 5/347 - Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using optical means, i.e. using infrared, visible or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells using displacement encoding scales
The present invention relates to a position measurement system for recording of the position of an object, which can move in a plurality of degrees of freedom, with respect to a stationary object. The position measurement system has at least one physical mass which is connected to one of the objects, as well as a plurality of scanning units, which are connected to the other object and produce raw position signals from optical scanning of the physical mass. Furthermore, a multiplexer unit is provided, with the raw position signals that are produced by the scanning units being supplied to the multiplexer unit, and with the raw position signals from the various scanning units being transmitted from the multiplexer unit, using time-division multiplexing, to downstream subsequent electronics without any need to convert the raw position signals to position values in advance.
G01D 5/353 - Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using optical means, i.e. using infrared, visible or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells influencing the transmission properties of an optical fibre
A mount for a measuring rod (2) comprises a support body (4) and a plurality of fastening elements (10) which are arranged along the measuring rod (2) and on both sides of the measuring rod (2). A solid hinged joint (20), which couples the fastening element (10) and therefore the measuring rod (2) to the support body (4) such that they can be moved in the measurement direction X, is arranged between the support body (4) and the fastening elements (10) in each case.
G01B 5/00 - Measuring arrangements characterised by the use of mechanical techniques
G01D 5/347 - Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using optical means, i.e. using infrared, visible or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells using displacement encoding scales
G01B 11/00 - Measuring arrangements characterised by the use of optical techniques
G01B 21/02 - Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness
B23Q 17/00 - Arrangements for indicating or measuring on machine tools
The invention relates to a rotary transducer for determining the rotation of an object to be measured, said transducer comprising a shaft (3) that is coupled to the rotation of the object to be measured, and at least one bearing (2) in which the shaft (3) is rotatably mounted. The inventive rotary transducer also comprises a base body (1) provided with a bearing fixing region to which the bearing (2) is fixed. Said base body (1) is provided with at least one recess (11) which is continuously embodied along the periphery of the bearing fixing region at a defined depth, in such a way that it surrounds at least half of the periphery of the bearing fixing region.
In order to increase the reliability of position monitoring, a two-channel comparison of position values with set-point values (S1) is proposed in independent computing units (CPU1,CPU2) of a numerical control system.
The invention relates to a device and a method for coordinate measurement, with a scanning head (10), which generates a switching signal on contacting a workpiece, positional measuring units (20), for each coordinate axis to be measured, by means of which the relative position of the scanning head (10) may be measured and a processing unit (30), working discretely at the time intervals of a control clock signal (32). In order to measure coordinates, positional measuring values are measured at the time intervals of a scanning clock signal (23), generated by a scanning clock generator (22) with a higher frequency than a control clock signal (32) of a processing unit (30). The positional measuring values are stored in a positional data memory (24). In a time measuring unit (34), a time difference (ﶴt), between a pulse of the control clock signal (32) and the appearance of the switching signal on the switching scanning head (10), is measured. By means of said measured time difference (ﶴt), the positional value in the positional data memory (24) which is closest to the time of the switching signal is then determined in the processing unit (30), or in the position measuring units (20).
G01B 21/04 - Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness by measuring coordinates of points
The invention relates to a position measuring device for determining the position of two structural units that are mobile in relation to each other. Said position measuring device comprises a first support for receiving a material measure of the position measuring device, which is adapted and intended for attachment to one of the structural units; a second support (F) for receiving a scanning unit of the position measuring device, which is adapted and intended for attachment to the other of the two structural units; and connecting means (S, M) for attachment of the two supports (F) including the respective structural unit associated therewith. At least one of the connecting means comprises a nut (M) with which a screw (S) can be engaged. Said nut (M) is located in a recess (100) of the two supports (F) and the recess (100) is elongate in such a manner that the nut (M), with one of its components, can be displaced perpendicular to the axial direction (-R) of the screw (S) associated therewith. According to the invention, the recess (100) is covered by a blocking element (8) which prevents a displacement of the nut (M) from the recess (100) in the axial direction (-R).