Abrégé

Systems and methods for non-destructive testing by computed tomography are provided. The system can include a stationary radiation source, a stage, and a plurality of stationary radiation detectors. The source can be configured to emit, from a focal point, a beam of penetrating radiation having a three-dimensional geometry and to direct the beam in a path incident upon a target. The stationary radiation source can be positioned with respect to the plurality of stationary radiation detectors and the stage such that, a first plurality of beam segment paths is defined between the focal point and respective sensing faces of the plurality of radiation detectors and at least one second beam segment path is defined between the focal point and a predetermined gap.

Classes IPC  ?

• G01N 23/046 - Recherche ou analyse des matériaux par l'utilisation de rayonnement [ondes ou particules], p.ex. rayons X ou neutrons, non couvertes par les groupes , ou en transmettant la radiation à travers le matériau et formant des images des matériaux en utilisant la tomographie, p.ex. la tomographie informatisée

Abrégé

Systems and methods for ultrasonic testing are provided. An ultrasonic probe including a phased transducer array can transmit a plurality of ultrasonic beams (e.g., plane waves) oriented at different directions simultaneously into a target. The plurality of ultrasonic transducers transmitting the ultrasonic waves can also receive ultrasonic echoes resulting from reflection of the plurality of plane waves from the target. Each ultrasonic transducer can measure a single A- scan characterizing the ultrasonic echoes received at that ultrasonic transducer. Based upon A- scans received from the plurality of transducers, a controller can generate an image representing the target and output the image for display by a display device substantially concurrently with transmission of the ultrasonic waves, allowing for real-time display.

Classes IPC  ?

• G01N 29/04 - Analyse de solides
• G01N 29/06 - Visualisation de l'intérieur, p.ex. microscopie acoustique
• G01N 29/46 - Traitement du signal de réponse détecté par analyse spectrale, p.ex. par analyse de Fourier
• G01N 29/26 - Dispositions pour l'orientation ou le balayage

Abrégé

A method of forming a probe holder includes forming a plurality of layers from at least one body material, wherein adjacent ones of the plurality of layers are bonded to one another to define a body of an ultrasonic probe holder. The body can include a distal end, a chamber, and a fluid channel. The distal end can be configured to secure the body to a proximal end of a wear sole. The chamber can be configured to receive an ultrasonic probe and a volume of fluid couplant. A fluid channel can extend through a portion of the body to the distal end and the fluid channel can be configured to receive a flow of fluid couplant. The plurality of layers can define a first region including a first probe holder material exhibiting a first acoustic or structural property and a second region including a second probe holder material exhibiting a second acoustic or structural property, wherein the first and second regions occupy different locations within the probe holder body.

Classes IPC  ?

• G01N 29/22 - Recherche ou analyse des matériaux par l'emploi d'ondes ultrasonores, sonores ou infrasonores; Visualisation de l'intérieur d'objets par transmission d'ondes ultrasonores ou sonores à travers l'objet - Détails
• B33Y 80/00 - Produits obtenus par fabrication additive
• G01N 29/24 - Sondes
• G01N 29/28 - Recherche ou analyse des matériaux par l'emploi d'ondes ultrasonores, sonores ou infrasonores; Visualisation de l'intérieur d'objets par transmission d'ondes ultrasonores ou sonores à travers l'objet - Détails pour établir le couplage acoustique

Abrégé

A method for forming a wear sole includes forming a plurality of layers from a frame material, adjacent layers bonded to one another to define a frame. The frame can include a proximal surface configured to secure the frame to a probe holder, a distal surface configured to contact a portion of a target, a body extending between proximal and distal surfaces, an aperture extending through proximal and distal surfaces and the body, and a channel extending from the proximal surface to a chamber in fluid communication with the distal surface. The method can optionally include placing a membrane within the aperture. The membrane can be coupled to the body by a seal, inhibiting passage of a fluid through the proximal surface via the aperture. The chamber can extend within the body between a distal surface of the membrane and the distal surface of the frame.

Classes IPC  ?

• G01N 29/22 - Recherche ou analyse des matériaux par l'emploi d'ondes ultrasonores, sonores ou infrasonores; Visualisation de l'intérieur d'objets par transmission d'ondes ultrasonores ou sonores à travers l'objet - Détails
• G01N 29/28 - Recherche ou analyse des matériaux par l'emploi d'ondes ultrasonores, sonores ou infrasonores; Visualisation de l'intérieur d'objets par transmission d'ondes ultrasonores ou sonores à travers l'objet - Détails pour établir le couplage acoustique

Abrégé

Systems and methods for monitoring the condition of ultrasonic transducers and ultrasonic probes used in non-destructive testing are provided. In one aspect, a degree of deterioration and end of life of an ultrasonic transducer can be estimated based upon measured environmental and/or operating parameters of the ultrasonic transducer. In another aspect, testing parameters acquired by a single ultrasonic probe or different ultrasonic probes can be measured and analyzed to identify deterioration of an ultrasonic probe.

Classes IPC  ?

• G01N 29/11 - Analyse de solides en mesurant l'atténuation des ondes acoustiques
• G01F 25/00 - Test ou étalonnage des appareils pour la mesure du volume, du débit volumétrique ou du niveau des liquides, ou des appareils pour compter par volume
• G01N 29/30 - Dispositions pour l'étalonnage ou la comparaison, p.ex. avec des objets standard
• G01N 29/32 - Dispositions pour supprimer des influences indésirables, p.ex. des variations de température ou de pression
• G01N 29/44 - Traitement du signal de réponse détecté
• G01S 7/52 - DÉTERMINATION DE LA DIRECTION PAR RADIO; RADIO-NAVIGATION; DÉTERMINATION DE LA DISTANCE OU DE LA VITESSE EN UTILISANT DES ONDES RADIO; LOCALISATION OU DÉTECTION DE LA PRÉSENCE EN UTILISANT LA RÉFLEXION OU LA RERADIATION D'ONDES RADIO; DISPOSITIONS ANALOGUES UTILISANT D'AUTRES ONDES - Détails des systèmes correspondant aux groupes , , de systèmes selon le groupe

Abrégé

Systems, methods, and devices for determining relative and absolute positions and orientations of a detector and an inspection part of a CT system. In some cases positions/orientations of the detector and the inspection part can be defined, at least in part, by tilt angles relative to reference axes and/or planes defined by various combinations of the reference axes. In some embodiments, sensors coupled to the detector and to a stage assembly having the inspection part coupled thereto can be used to determine the tilt angles of the inspection part and the detector, respectively. Data from the sensors characterizing tilt angles of the detector and the inspection part can be used to adjust projectional radiographs of the inspection part to correct for the mechanical wobble of the stage. By using tilt data to adjust projectional radiographs, the quality of tomographic images and 3 -dimensional reconstructions of the inspection part can be improved.

Classes IPC  ?

• G01N 23/046 - Recherche ou analyse des matériaux par l'utilisation de rayonnement [ondes ou particules], p.ex. rayons X ou neutrons, non couvertes par les groupes , ou en transmettant la radiation à travers le matériau et formant des images des matériaux en utilisant la tomographie, p.ex. la tomographie informatisée
• G01T 1/29 - Mesure effectuée sur des faisceaux de radiations, p.ex. sur la position ou la section du faisceau; Mesure de la distribution spatiale de radiations

Abrégé

Scatter correction for tomography: for each position, two images are aquired, a first image without and a second image with a scatter reducing aperture plate (50). A scatter image is calculated by subtracting the second image from the first image. The apertures (48) in the scatter reducing plate (50) are arranged hexagonally in order to optimise the packaging density of the apertures.

Classes IPC  ?

• G01N 23/04 - Recherche ou analyse des matériaux par l'utilisation de rayonnement [ondes ou particules], p.ex. rayons X ou neutrons, non couvertes par les groupes , ou en transmettant la radiation à travers le matériau et formant des images des matériaux
• H04N 5/32 - Transformation des rayons X
• G21K 1/02 - Dispositions pour manipuler des particules ou des rayonnements ionisants, p.ex. pour focaliser ou pour modérer utilisant des diaphragmes, des collimateurs

Abrégé

The invention relates to a method for the non-destructive testing of a train wheel (101) by means of ultrasound. The method is based on the generation of a pulsed ultrasonic field in the train wheel (101) to be tested by means of an array (102) of individually controllable ultrasonic transmitting transducers (110) acoustically coupled to the train wheel (101). For this purpose, the ultrasonic transmitting transducers (110) are each controlled with a specific analog transient excitation signal, each analog transient excitation signal being generated based on an ultrasonic transmitting transducer- specific stored digital transient excitation function. Preferably, the resulting echo signals from the train wheel (101) to be tested are recorded by means of an array (102) of individually controllable ultrasonic receiving transducers (110). Each ultrasonic receiving transducer (110) is capable of providing an analog, time-resolved echo signal. The received analog time-resolved echo signals can be digitized in a transducer-specific way and temporarily stored in the form of an echo signal set. A plurality of different reception processing rules can then be applied to the latter. Furthermore, the invention relates to a device for carrying out the method.

Classes IPC  ?

• G01N 29/04 - Analyse de solides
• G01N 29/26 - Dispositions pour l'orientation ou le balayage
• G01N 29/27 - Dispositions pour l'orientation ou le balayage en déplaçant le matériau par rapport à un capteur fixe
• G01S 15/89 - Systèmes sonar, spécialement adaptés à des applications spécifiques pour la cartographie ou la représentation
• G10K 11/34 - Procédés ou dispositifs pour transmettre, conduire ou diriger le son pour focaliser ou pour diriger le son, p.ex. balayage par commande électrique de systèmes de transducteurs, p.ex. en dirigeant un faisceau acoustique

Abrégé

A method for the nondestructive testing of a test object by ultrasound, the method including generating a pulsed ultrasonic field in the test object by means of an array of individually drivable ultrasonic transmitting transducers acoustically coupled to the test object, by the ultrasonic transmitting transducers each being driven with a specific analog transient excitation signal, wherein each analog transient excitation signal is generated based on an ultrasonic transmitting transducer-specific stored digital transient excitation function, receiving resulting echo signals from the test object by means of an array of individually drivable ultrasonic receiving transducers, with each ultrasonic receiving transducer providing an analog time-resolved echo signal, temporarily storing the time-resolved, transducer-specific, digitized echo signals in the form of an echo signal set, and applying a plurality of different reception processing rules to the echo signal set.

Classes IPC  ?

• G01N 29/06 - Visualisation de l'intérieur, p.ex. microscopie acoustique
• G01N 29/07 - Analyse de solides en mesurant la vitesse de propagation ou le temps de propagation des ondes acoustiques
• G01N 29/26 - Dispositions pour l'orientation ou le balayage
• G03B 42/06 - Production d'enregistrements en utilisant d'autres ondes que des ondes optiques; Visualisation de ces enregistrements en utilisant des moyens optiques en utilisant des ondes ultrasonores, sonores ou infrasonores
• G01N 29/34 - Génération des ondes ultrasonores, sonores ou infrasonores
• G01N 29/46 - Traitement du signal de réponse détecté par analyse spectrale, p.ex. par analyse de Fourier

Abrégé

The invention relates to a method for the non-destructive testing of a workpiece (100) by means of ultrasound, in which a series of i A-scans SN,...; SN+i of the volume of the workpiece (100) is recorded and buffered. Then, a time frame is set in which ultrasonic signals which could be correlated with a defect occur in at least one scan Sj with j out of [N, N+i]. By forming sections of the A-scans SN,...; SN+i that fall into the set time frame, and arranging them relative to one another in a sequence predefined by an algorithm, such as in the sequence in time or space of their respective recording, an image of the workpiece is generated to which an analysis algorithm from image processing is applied. The device according to the invention is configured for carrying out the method according to the invention and comprises the means necessary for this purpose.

Classes IPC  ?

• G01N 29/06 - Visualisation de l'intérieur, p.ex. microscopie acoustique
• G01N 29/38 - Détection du signal de réponse par filtrage temporel, p.ex. en utilisant des fenêtres temporelles
• G01N 29/44 - Traitement du signal de réponse détecté

Abrégé

The invention relates to a method for ultrasonic geometry testing of a test object (28) at various measuring positions distributed along a surface (26) of a test object (xn) by means of at least one ultrasonic transducer, comprising a plurality of steps. First, a calibration device (20) with known dimensions (ODcal(xn)) is provided. Then there follow several calibrating steps, during each of which a measuring position specific distance (WP(xn)) between calibration device (20) and ultrasonic transducer (10) is determined and stored by an ultrasonic transit time method, by at least one echo on at least one surface of the calibration device (20), using the known dimension (ODcal(xn)) for each measuring position n. Subsequently, a test object (28) is provided, at which ultrasonic transit time measurements are performed in multiple test steps. Transit time measurements are thereby taken at several measuring positions xn, using at least one echo on at least one surface (26) of the test object (28). In the following evaluation step a dimension (27) of the test object is calculated using the measuring position- specific distances WP(xn).

Classes IPC  ?

• G01N 29/07 - Analyse de solides en mesurant la vitesse de propagation ou le temps de propagation des ondes acoustiques
• G01B 17/00 - Dispositions pour la mesure caractérisées par l'utilisation de vibrations infrasonores, sonores ou ultrasonores
• G01N 29/26 - Dispositions pour l'orientation ou le balayage
• G01N 29/30 - Dispositions pour l'étalonnage ou la comparaison, p.ex. avec des objets standard

Abrégé

The invention relates to a device for the non-destructive ultrasound testing of workpieces. It comprises an ultrasonic test probe (10) with an ultrasonic transducer, the ultrasonic test probe (10) being configured for generating and coupling ultrasonic signals (24) into a workpiece or/and for receiving ultrasonic signals (24) from the workpiece. Furthermore, an electronic control unit (30)is provided. The ease of operation is improved as a whole by a special configuration of the test probe (10) and the control unit (30). Furthermore, the invention relates to an advantageous method for the non-destructive ultrasound testing of workpieces.

Classes IPC  ?

• G01N 29/22 - Recherche ou analyse des matériaux par l'emploi d'ondes ultrasonores, sonores ou infrasonores; Visualisation de l'intérieur d'objets par transmission d'ondes ultrasonores ou sonores à travers l'objet - Détails

Abrégé

The invention relates to a push chain (20). This chain has: a plurality chain links (22) situated one behind another along a longitudinal axis x-x of the push chain (20), which each have two side plates (24) that are situated on opposite sides from each other and oriented parallel to each other and that are connected to each other by a connecting plate (26); the side plates (24) and the connecting plate (26) together form an approximate U-shape in cross-section and an elastically deformable backing belt (30), which is attached to the connecting plates (26) of the chain links (22), wherein with an approximately straight alignment of the push chain (20), the chain links (22) rest against one another with contact surfaces (32).

Classes IPC  ?

• F16G 13/20 - Chaînes ayant des caractéristiques générales particulières rigides; Chaînes à arc-boutement
• F16G 13/16 - Chaînes de traction ou de hissage avec dispositifs pour soutenir des câbles électriques, des tuyaux ou des éléments analogues

Abrégé

The invention relates to a method for ultrasonic testing according to the pulse-echo method as well as an arrangement for performing such a method. By means of an ultrasonic transducer (6), an ultrasonic pulse (5) is obliquely incident into a sound incidence surface (7) of a test object (10). Next, an echo signal (22) is received from the test object (10). This takes place either by means of the ultrasonic transducer (6), which has emitted the ultrasonic pulse (5) or with another ultrasonic transducer. The time amplitude characteristic (20) of the echo signal (22) is evaluated in a predefined defect expectation interval of time (26). The evaluation step includes, in at least one section (30) of the amplitude characteristic (20), an amplification of the amplitude (A) and/or a reduction in the threshold value (26). For example, the amplitude (A) of the received echo signal (22) is then compared with the predefined threshold value (26).

Classes IPC  ?

• G01N 29/11 - Analyse de solides en mesurant l'atténuation des ondes acoustiques
• G01N 29/22 - Recherche ou analyse des matériaux par l'emploi d'ondes ultrasonores, sonores ou infrasonores; Visualisation de l'intérieur d'objets par transmission d'ondes ultrasonores ou sonores à travers l'objet - Détails
• G01N 29/24 - Sondes
• G01N 29/36 - Détection du signal de réponse
• G01N 29/38 - Détection du signal de réponse par filtrage temporel, p.ex. en utilisant des fenêtres temporelles
• G01N 29/40 - Détection du signal de réponse par filtrage en amplitude, p.ex. par application d'un seuil
• G01N 29/44 - Traitement du signal de réponse détecté

Abrégé

The subject matter of the invention is a method for the non-destructive testing of a test object (100) by means of ultrasound, the method being configured for characterizing flaws or discontinuities (99) in the material of the test object (100) in accordance with the reference body method. For this purpose, ultrasonic pulses with a certain bandwidth B are generated and coupled into a reference body with an oblique insonification at a fixed insonification angle 0. The reference body consists of a material that is identical with or acoustically equivalent to the material of the test object (100) and comprises at least one reference reflector with a known geometry. Then, echo signals stemming from the reference reflector are recorded from the reference body. They are processed in such a way that an insonification angle-specific DAC curve for the test object (100) is determined, on the basis of a general DAC curve, by adaptation to the echo signal of the reference reflector. Furthermore, the invention includes a device configured for carrying out such a method.

Classes IPC  ?

• G01N 29/24 - Sondes
• G01N 29/30 - Dispositions pour l'étalonnage ou la comparaison, p.ex. avec des objets standard
• G01N 29/44 - Traitement du signal de réponse détecté

Abrégé

The invention relates to a method for the non-destructive testing of a test object (100) by means of ultrasound, the method serving for characterizing flaws or discontinuities (99) in the material of the test object (100) in accordance with the DGS method, which are located in the near field of an ultrasonic transducer (12) used for generating the ultrasound. The method comprises: coupling ultrasonic pulses with a certain bandwidth B into the test object (100), as well as recording echo signals from the test object (100), and determining an equivalent reflector size ERS of a flaw or discontinuity (99) causing the recorded echo signals from received echo signals based on a DGS diagram, which was determined taking into consideration the bandwidth B of the insonified ultrasonic pulses. Furthermore, the invention relates to a device configured for carrying out the method according to the invention.

Classes IPC  ?

• G01N 29/30 - Dispositions pour l'étalonnage ou la comparaison, p.ex. avec des objets standard
• G01N 29/44 - Traitement du signal de réponse détecté

Abrégé

The invention relates to an ultrasonic test probe (1) comprising an ultrasonic transducer (10) with at least one electrically conductive contact surface (12, 14, 42), a leading body (20) and a housing (2). The ultrasonic transducer (10) is disposed on the leading body (20), and the leading body (20) with the ultrasonic transducer (10) disposed thereon is disposed in the housing (2). The invention relates to a novel contact connection of the electrically conductive contact surface (12, 14, 42). Furthermore, the invention relates to a method for producing an ultrasonic test probe (1) according to the invention.

Classes IPC  ?

• G10K 9/122 - Dispositifs dans lesquels le son est produit par la vibration d'un diaphragme ou un élément analogue, p.ex. cornes de brume, avertisseurs de véhicule ou vibreurs fonctionnant électriquement utilisant des moyens d'entraînement piézo-électriques
• G10K 9/22 - Montages; Habillages
• G10K 11/00 - Procédés ou dispositifs pour transmettre, conduire ou diriger le son en général; Procédés ou dispositifs de protection contre le bruit ou les autres ondes acoustiques ou pour amortir ceux-ci, en général

Abrégé

An imaging ultrasonic testing system (10) comprises first and second linear arrays (12, 14), oriented in different directions in space, and an ultrasonic test unit (20) connected to the first and second linear arrays (12, 14). The ultrasonic test unit (20) is adapted to: insonify a plurality of ultrasonic signals into a test object with the first linear array (12); record the resulting echo signals from the test object with the second linear array (14), and generate a first three-dimensional image of at least a part of the test object volume. The ultrasonic test unit (20) is further adapted to: insonify a plurality of ultrasonic signals into a test object with the second linear array (14); record the resulting echo signals from the test object with the first linear array (12), and generate a second three-dimensional image of at least a part of the test object volume. The ultrasonic test unit (20) is further adapted to: compute a correlation of the first and second images to generate a three-dimensional image of at least a part of the test object volume therefrom.

Classes IPC  ?

• G01N 29/06 - Visualisation de l'intérieur, p.ex. microscopie acoustique

Abrégé

The invention relates to a method for the non-destructive testing of the volume of a test object, during the course of which a volume raw image 100 of the test object is recorded by means of a suitable non-destructive imaging testing method. Then, those regions of the volume raw image are identified that are not to be attributed to the test object material. It is checked whether an identified region is completely embedded in regions that are to be associated with the test object material. If necessary, such a region is assimilated to those regions that are to be associated with the test object material, forming a filled volume raw image. Finally, a difference 103 is generated between the volume raw image and the filled volume raw image, forming a first flaw image 104. A further subject matter of the invention is a testing device configured for carrying out the method.

Classes IPC  ?

• G06T 7/00 - Analyse d'image

Abrégé

The invention relates to a method for contacting an ultrasonic transducer (10; 10'; 10") for the non-destructive testing of a test object with a great material thickness by means of ultrasound. In this case, an ultrasonic transducer (10; 10'; 10") is provided that is divided into a plurality of individually activatable transducer segments (11; 11'; 11"; 11"'), wherein these transducer segments (11; 11'; 11"; 11'") are formed as concentric circles or rings, or sections thereof, and several groups of transducer segments (11; 11'; 11"; 11'") can be selectively chosen in such a way that a parallel activation of these transducer segments (11; 11'; 11"; 11'") in each case results in a circular active surface of the ultrasonic transducer (10; 10'; 10"). Furthermore, a printed circuit board (20) is provided on which several conductor paths run (21) that respectively extend between two sides (22; 23) of the printed circuit board (21). In order to form a damping body, the printed circuit board (21) is inserted into this damping body (40) in such a way that first conductor path (21) ends (24; 24',..., 24n) are exposed on one side (22) of the damping body (40), while associated second ends (25; 25',..., 25n) are exposed on the other side (23) of the damping body (40). Thus, the ultrasonic transducer (10; 10'; 10") can be connected to the damping body (40) in an orientation in which the printed circuit board (20) extends at an angle α to the ultrasonic transducer (10; 10'; 10") surface to be contacted, which is unequal to 0°, and at least a part of the first conductor path (21) ends (24; 24',...,24n) is contacted to the transducer segments (11; 11'; 11"; 11"') of the ultrasonic transducer (10; 10'; 10"), and at least a part of the second ends (25; 25',...,25n) is contacted to means for activating the ultrasonic transducer (10; 10'; 10") via the contacted conductor paths (21).

Classes IPC  ?

• B06B 1/06 - Procédés ou appareils pour produire des vibrations mécaniques de fréquence infrasonore, sonore ou ultrasonore utilisant l'énergie électrique fonctionnant par effet piézo-électrique ou par électrostriction
• H01L 41/25 - Assemblage de dispositifs incluant des parties piézo-électriques ou électrostrictives
• H01L 41/333 - Mise en forme ou usinage de corps piézo-électriques ou électrostrictifs par moulage ou extrusion

Abrégé

A system (10) for the automated serial testing and/or measuring of a plurality of substantially identical components (12) by X-radiation comprises a testing device (11) with a support (17), a rotor (18) mounted so as to be continuously rotatable on the support (17), and an X-ray device (24, 25) disposed on the rotor (18), a protective enclosure (15) surrounding the testing device (11), a handling device (60) for handling a component (12) during X-ray testing, and a control/evaluation unit (14) configured for automatically controlling the system (10) as well as evaluating the X-ray signals by computer tomography. The handling device (60) is configured for periodically reciprocating between a loading region (61) and a testing region (78) and comprises an end face element (64) on which the component (12) can be disposed on the side of the end face.

Classes IPC  ?

• G01N 23/04 - Recherche ou analyse des matériaux par l'utilisation de rayonnement [ondes ou particules], p.ex. rayons X ou neutrons, non couvertes par les groupes , ou en transmettant la radiation à travers le matériau et formant des images des matériaux
• G01N 23/18 - Recherche de la présence de défauts ou de matériaux étrangers

Abrégé

The invention relates to a method and a device for the non-destructive inspection of a rotationally symmetric workpiece (1) having sections with different diameters by means of a non-destructive inspection technique, such as ultrasound. Within the context of the method, a test data set characterizing the material properties of the workpiece is generated by means of the inspection technique. An azimuth angle-dependent indicated value set Ai is generated therefrom. Subsequently, a representation (50) of the workpiece (1) is generated, wherein the elements of the indicated value set Ai are depicted in the representation (50) in a spatially resolved manner. In particular, a graphic representation of the surface of the workpiece (1) can be generated in which flaw signals are displayed that may have been found.

Classes IPC  ?

• G01N 29/04 - Analyse de solides
• G01N 23/18 - Recherche de la présence de défauts ou de matériaux étrangers
• G01N 27/90 - Recherche ou analyse des matériaux par l'emploi de moyens électriques, électrochimiques ou magnétiques en recherchant des variables magnétiques pour rechercher la présence des criques en utilisant les courants de Foucault
• G01N 29/06 - Visualisation de l'intérieur, p.ex. microscopie acoustique
• G01N 29/44 - Traitement du signal de réponse détecté

Abrégé

The invention relates to a method and device for the near-surface, non-destructive inspection by means of ultrasound of a rotationally symmetric workpiece (1) having a diameter that changes from section to section. The method and device are based on the insonification of an ultrasonic test pulse into the workpiece (1) at a defined insonification angle Theta and the subsequent recording of an ultrasonic echo signal from the workpiece (1). Echo signals that trace back to a near-surface region ROI of the workpiece are identified and evaluated. Then, a graphic representation of the surface of the workpiece is generated.

Classes IPC  ?

• G01N 29/04 - Analyse de solides
• G01N 29/06 - Visualisation de l'intérieur, p.ex. microscopie acoustique
• G01N 29/22 - Recherche ou analyse des matériaux par l'emploi d'ondes ultrasonores, sonores ou infrasonores; Visualisation de l'intérieur d'objets par transmission d'ondes ultrasonores ou sonores à travers l'objet - Détails
• G01N 29/38 - Détection du signal de réponse par filtrage temporel, p.ex. en utilisant des fenêtres temporelles

Abrégé

A method for detecting geometrical imaging properties of a flat panel detector (12) in an X-ray testing system comprises the steps of: disposing a calibrating body (13) between an X-ray beam source (11) and the flat panel detector (12), the calibrating body (13) comprising at least one discrete geometrical object (30); recording at least one X-ray image of the calibrating body (13) with the flat panel detector (12), with at least one discrete geometrical figure (32) being generated in the X-ray image by imaging the at least one discrete geometrical object (30) of the calibrating body (13); and determining the positionally dependent distortion error of the flat panel detector (12) from the at least one X-ray image based on at least one feature of the at least one discrete geometrical figure (32). All features of the at least one discrete geometrical figure (32) used for determining the positionally dependent distortion error are independent from the dimensions of the calibrating body (13).

Classes IPC  ?

• A61B 6/00 - Appareils pour diagnostic par radiations, p.ex. combinés avec un équipement de thérapie par radiations
• G01N 23/04 - Recherche ou analyse des matériaux par l'utilisation de rayonnement [ondes ou particules], p.ex. rayons X ou neutrons, non couvertes par les groupes , ou en transmettant la radiation à travers le matériau et formant des images des matériaux

Abrégé

A wear base for attachment to a US test probe is proposed, wherein the US test probe is provided for the ultrasonic inspection of bar stock and wherein the US test probe comprises a fluid chamber which, in the operational state of the US test probe, is filled with a coupling fluid or through which this coupling fluid flows, wherein the wear base is provided for attachment to the fluid chamber as well as for a mechanical contact with the bar stock to be inspected, and comprises a base block, wherein the base block forms at least one contact surface for a mechanical contact with the bar stock to be inspected, the contact surface having a curved portion, wherein at least one passage opening for the coupling fluid is disposed in the contact surface, wherein the wear base comprises at least one spring member for the adaptive matching of a radius of curvature of the curved portion of the contact surface of the base block to a radius of the bar stock to be inspected.

Classes IPC  ?

• G01N 29/28 - Recherche ou analyse des matériaux par l'emploi d'ondes ultrasonores, sonores ou infrasonores; Visualisation de l'intérieur d'objets par transmission d'ondes ultrasonores ou sonores à travers l'objet - Détails pour établir le couplage acoustique

Abrégé

The invention relates to a method for processing an ultrasonic analog signal (10) representing a reflected ultrasonic wave, wherein the ultrasonic analog signal (10) is fed in a parallel manner into at least two signal paths (A;B) and the ultrasonic analog signal is supplied in each signal path (A;B) to respective amplifiers (20A;20B) whose gains are different from one another. The ultrasonic analog signals (11;11') which have thus been amplified differently are supplied in each signal path (A;B) to a respective A/D converter (30A;30B) which converts the amplified ultrasonic analog signals (11; 11') into digital ultrasonic data (12;12'), from which a combined digital ultrasonic signal (15) is reconstructed after further processing steps. According to the invention, a decomposition of the digital ultrasonic data (12; 12') is carried out in each signal path (A;B) by the first level of a wavelet filter algorithm, and the wavelet coefficients are altered by a threshold analysis. A combined digital ultrasonic signal (15) is then reconstructed from the ultrasonic data thus decomposed, wherein an inverse transformation of the combined ultrasonic signal (15) is carried out by the second level of the wavelet filter algorithm with the altered wavelet coefficients. The invention moreover relates to an associated signal processing unit and an ultrasonic inspection device comprising such a signal processing unit.

Classes IPC  ?

• G01N 29/46 - Traitement du signal de réponse détecté par analyse spectrale, p.ex. par analyse de Fourier
• G06F 17/14 - Transformations de Fourier, de Walsh ou transformations d'espace analogues

Abrégé

The invention relates to a device (1) for the non-destructive testing of a test object by means of ultrasound. Here, the device comprises (1) a control unit (10) provided for driving a phased array ultrasonic test probe (24) and a display (12). The control unit (10) is configured to operate the phased array test probe (24) in the pulse echo operation and to control the insonification angle Θ of the phased array test probe (24) into the test object. The pulse echo from the test object received by the phased array test probe (24) is analyzed by the control unit (10), wherein the control unit (10) generates an A-scan (14) or/and a B-scan (16) of a received pulse echo on the display (12). The invention further relates to a method for operating such a device (1) and a method for the non-destructive inspection of a test object by means of ultrasound in accordance with the TCG method, using a phased array ultrasonic test probe (24).

Classes IPC  ?

• G01N 29/26 - Dispositions pour l'orientation ou le balayage
• G01N 29/30 - Dispositions pour l'étalonnage ou la comparaison, p.ex. avec des objets standard
• G01N 29/44 - Traitement du signal de réponse détecté
• G01N 29/06 - Visualisation de l'intérieur, p.ex. microscopie acoustique

Abrégé

A computed tomography method for determining a volumetric representation of a sample (13), comprising a first reconstruction (22a) for reconstructing first reconstructed volume data (23a) of the sample (13) from first x-ray projection data (21a) of the sample (13) taken by an x-ray system (10), a second reconstruction (22b) for reconstructing second reconstructed volume data (23b) of the sample (13) from second x- ray projection data (21b) of the sample (13) taken by an x-ray system (10), characterized by calculating first individual confidence measures (28a) for single voxels of said first reconstructed volume data (23a), calculating second individual confidence measures (28b) for single voxels of said second reconstructed volume data (23b), and calculating, in a subsequent step (35), at least one resulting set of individual values (36, 37, 38) for each voxel based on said first individual confidence measures (28a) and said second individual confidence measures (28b).

Classes IPC  ?

• G06T 11/00 - Génération d'images bidimensionnelles [2D]

Abrégé

A microfocus X-ray tube (11) for a high-resolution X-ray apparatus comprises a housing (34), an electron beam source (15) for producing an electron beam (14) and a focusing lens (22) for focusing the electron beam (24) onto a target (23). The X-ray tube (11) has an essentially rotationally symmetrical, annular cooling chamber (30) that is designed such that a liquid cooling medium can flow through.

Classes IPC  ?

• H01J 35/16 - Enceintes; Récipients; Blindages associés

Abrégé

The invention relates to a feeding device for an ultrasound inspection system, with means for transporting a test object (7), in particular a pipe, into an ultrasound inspection chamber of the ultrasound inspection system, comprising at least one guiding unit (1) for the test object with at least one, preferably three, still more preferably six elastically biased counter bearings (2) resting against a jacket surface (8) of the test object (7) via a contact part (4) in order to guide the test object during transport.

Classes IPC  ?

• G01N 29/22 - Recherche ou analyse des matériaux par l'emploi d'ondes ultrasonores, sonores ou infrasonores; Visualisation de l'intérieur d'objets par transmission d'ondes ultrasonores ou sonores à travers l'objet - Détails
• G01N 29/27 - Dispositions pour l'orientation ou le balayage en déplaçant le matériau par rapport à un capteur fixe

Abrégé

A computed tomography method for determining a volumetric representation of a sample (13) comprises an initial reconstruction step (22) for reconstructing initial volume data (23) of the sample (13) from x-ray projections (21) of the sample (13) taken by an x-ray system (10), a step (24) of determining a part of the reconstructed initial sample volume to be updated, and an iterative update process (32) for generating, using an iterative reconstruction method, updated volume data (23) only for the part of the volume data (23) determined to be updated. The method comprises, in said step (24) of determining the part of the sample volume to be updated, individually evaluating for every single voxel in said volume data (23), based on available quality information for the reconstructed volume data (23), whether or not this voxel fulfils a predetermined condition indicating that an update is required for this voxel, and, in said iterative update process (32), generating said updated volume data (23) only for those voxels for which it has been determined that an update is required.

Classes IPC  ?

• G06F 19/00 - Équipement ou méthodes de traitement de données ou de calcul numérique, spécialement adaptés à des applications spécifiques (spécialement adaptés à des fonctions spécifiques G06F 17/00;systèmes ou méthodes de traitement de données spécialement adaptés à des fins administratives, commerciales, financières, de gestion, de surveillance ou de prévision G06Q;informatique médicale G16H)

Abrégé

The invention relates to a cathode element for a microfocus x-ray tube comprising a heatable filament made of wire for thermionically emitting electrons to form an electron beam. The filament has an elongated extension (11, 12) in each of two directions perpendicular to the electron beam in a source area of the electron beam.

Classes IPC  ?

• H01J 35/06 - Cathodes
• H01J 1/16 - Cathodes à chauffage direct par courant électrique caractérisées par leur forme
• H01J 1/18 - Supports; Dispositifs amortisseurs de vibrations

Abrégé

The invention relates to an ultrasonic test method having an ultrasonic test step, wherein a test item is checked non-destructively by means of ultrasound generated by an ultrasonic test head, wherein a liquid coupling medium continuously circulates outside of the test head. Part of the coupling medium is diverted and fed into a coupling chamber between the ultrasonic test head and the test item. The coupling agent circuit also comprises a degassing device. Gas bubbles in the coupling agents are removed from the coupling agent by means of a settling tank and a zigzag conduit.

Classes IPC  ?

• G01N 29/28 - Recherche ou analyse des matériaux par l'emploi d'ondes ultrasonores, sonores ou infrasonores; Visualisation de l'intérieur d'objets par transmission d'ondes ultrasonores ou sonores à travers l'objet - Détails pour établir le couplage acoustique

Abrégé

The invention relates to a test probe 10 for the non-destructive testing of a workpiece by means of ultrasonic sound. The test probe has an ultrasonic transducer 20 for the generation of an ultrasonic field, which is coupled acoustically to a delay line body 12, which is provided to be attached for a coupling of the ultrasonic field into the workpiece on a surface of the workpiece. Furthermore, the invention relates to a family of test probes as well as to a testing device for the non-destructive testing of a workpiece by means of ultrasonic sound, with a test probe 10, whose ultrasonic transducer 20 has a majority of independently controllable individual oscillators. Furthermore, a control unit 50 is provided, which is equipped to control the individual oscillators of the ultrasonic transducer 20 with phase accuracy in such a way, that a sound field rotationally symmetrical to the central beam is generated. The test probe or the family of test probes and the testing device are suitable in particular for the angular intromission of sound or for a utilization on curved workpiece surface areas.

Classes IPC  ?

• G01N 29/28 - Recherche ou analyse des matériaux par l'emploi d'ondes ultrasonores, sonores ou infrasonores; Visualisation de l'intérieur d'objets par transmission d'ondes ultrasonores ou sonores à travers l'objet - Détails pour établir le couplage acoustique

Abrégé

The invention relates to a probe head system (10), especially a planar probe head, for coupling ultrasonic signals to a planar component to be tested by way of free water jet technology. Said probe head system comprises a probe head (12), at least one pre-flow chamber (14, 16) having at least one water inlet (78), and at least one flow chamber (42), mounted downstream of the pre-flow chamber (14, 16) and having a preferably slot-type water outlet opening (50). The invention further relates to a device for the ultrasonic testing of a component. The aim of the invention is to devise a simple, light-weight probe head system which can be easily adapted to various measurement conditions. The probe head (12) is detachably arranged outside the at least one flow and/or pre-flow chamber (14, 16) in a freely accessible manner, a lateral surface (64) of the probe head (12) having transceiver elements defining an inner wall section of the flow chamber (42). The planar probe head (10) is connected to a glide plate (24, 152) defining a lower face (56, 156) of the planar probe head (10) on the component side, the planar extension of said glide plate being larger along the component (160) than the planar extension of the base (28) along the component (160), and the glide plate (24, 152) having the slot-type water outlet opening (50).

Classes IPC  ?

• G01N 29/22 - Recherche ou analyse des matériaux par l'emploi d'ondes ultrasonores, sonores ou infrasonores; Visualisation de l'intérieur d'objets par transmission d'ondes ultrasonores ou sonores à travers l'objet - Détails
• G01N 29/265 - Dispositions pour l'orientation ou le balayage en déplaçant le capteur par rapport à un matériau fixe
• G01N 29/28 - Recherche ou analyse des matériaux par l'emploi d'ondes ultrasonores, sonores ou infrasonores; Visualisation de l'intérieur d'objets par transmission d'ondes ultrasonores ou sonores à travers l'objet - Détails pour établir le couplage acoustique

Abrégé

The invention relates to a device (10) for testing the material of test objects (15) by means of X-ray radiation, comprising a translatory conveying device (14) for automatically feeding and removing test objects (15) one after the other, and/or from a test position, an X-ray device (20) comprising an X-ray source (12) for irradiating a test object (15) maintained on a support (33) in the test position, and an X-ray detector (13). Said test object (15) and X-ray device (20) can be rotated in relation to each other only about an essentially vertical rotational axis during X-ray testing. According to one aspect of the invention, for X-ray testing, the support (33) and the test object (15) maintained on said support can be rotated together about the rotational axis (R). According to another aspect of the invention, for X-ray testing, the X-ray device (20) can be rotated about the rotational axis (R).

Classes IPC  ?

• G01N 23/04 - Recherche ou analyse des matériaux par l'utilisation de rayonnement [ondes ou particules], p.ex. rayons X ou neutrons, non couvertes par les groupes , ou en transmettant la radiation à travers le matériau et formant des images des matériaux
• G01M 17/013 - Roues

Abrégé

The invention relates to a device for testing the material of test objects (15) by means of X-ray radiation, comprising an X-ray device (20) which comprises an X-ray source (12) for irradiating a test object (15) maintained in a test position and an X-ray detector (13) designed as a line detector, and an electronic control element (38) which is designed to control the X-ray device (20). During X-ray testing, the test object (15) and the X-ray device can be rotated in relation to each other only about an essentially vertical rotational axis (R). The claimed device is characterised in that the X-ray detector (13) comprises at least two detection sections (13A, 13B,...) which are designed to detect the test object over a complete radial cross-section (52A, 52B,...).

Classes IPC  ?

• G01N 23/04 - Recherche ou analyse des matériaux par l'utilisation de rayonnement [ondes ou particules], p.ex. rayons X ou neutrons, non couvertes par les groupes , ou en transmettant la radiation à travers le matériau et formant des images des matériaux
• G01M 17/013 - Roues

Abrégé

The invention relates to a nondestructive ultrasonic test method in which at least one ultrasonic pulse is emitted into a workpiece under test by means of at least one ultrasonic transmitter (3), the ultrasonic pulse is reflected on boundary surfaces within the workpiece, the reflected ultrasound is received by at least one ultrasonic receiver (2), and the associated signals are evaluated, the ultrasound penetrating a damping block (4) that is arranged between the workpiece and the transmitter or receiver. Said method is characterized in that it includes at least one step for determining at least one dimension (alpha, d1, d2) of the damping block (4) that is relevant for the ultrasonic test; in said step, the propagation time of at least one ultrasonic pulse which is generated by the ultrasonic transmitter (3), is reflected on a boundary surface (5) of the damping block (4), and is received by the ultrasonic receiver (2) is measured, and at least one dimension (alpha, d1, d2) of the damping block (4) that is relevant for the ultrasonic test is determined from said measurement.

Classes IPC  ?

• G01N 29/07 - Analyse de solides en mesurant la vitesse de propagation ou le temps de propagation des ondes acoustiques
• G01N 29/24 - Sondes
• G01N 29/32 - Dispositions pour supprimer des influences indésirables, p.ex. des variations de température ou de pression

Abrégé

The invention relates to a nondestructive ultrasonic test method in which at least one ultrasonic pulse is emitted into a workpiece under test by means of at least one ultrasonic transmitter (3), the ultrasonic pulse is reflected on boundary surfaces within the workpiece, the reflected ultrasound is received by at least one ultrasonic receiver (2), and the associated signals are evaluated, the ultrasound penetrating a damping block (4) that is arranged between the workpiece and the transmitter or receiver. Said method is characterized in that it includes at least one step for determining the sound velocity in the damping block (4) by means of an array-type probe (1) comprising selectively controllable transducers; in said step, at least one first transducer (3) of the array-type probe (1) is used as the transmitter of at least one ultrasonic pulse, while at least one second transducer (2) of the array-type probe (1) is used as the receiver of the ultrasonic pulse, and the sound velocity in the damping block (4) is determined at least by measuring the propagation time of the ultrasound along the shortest distance (e1, e2) of the ultrasound between the respective transducers (2, 3) that are placed at a distance from each other.

Classes IPC  ?

• G01N 29/07 - Analyse de solides en mesurant la vitesse de propagation ou le temps de propagation des ondes acoustiques
• G01N 29/22 - Recherche ou analyse des matériaux par l'emploi d'ondes ultrasonores, sonores ou infrasonores; Visualisation de l'intérieur d'objets par transmission d'ondes ultrasonores ou sonores à travers l'objet - Détails
• G01N 29/24 - Sondes
• G01N 29/26 - Dispositions pour l'orientation ou le balayage
• G01N 29/32 - Dispositions pour supprimer des influences indésirables, p.ex. des variations de température ou de pression

Abrégé

The invention relates to a method for the non-destructive ultrasonic testing of a test piece (3) with flat surfaces (5) at an angle to each other by means of several selectively activatable ultrasonic transducers (2, 2', 2"), whereby the method comprises several test cycles, with which certain (2,2") of the several ultrasonic transducers (2, 2',2") are selected and activated, in order to emit at least one ultrasonic pulse (7, 7") to the test piece, and with which the ultrasonic pulse reflected in the test piece (3) is received by the selected and/or, if necessary, other ultrasonic transducers (2, 2', 2"). The method according to the present invention is characterized in that in the respective test cycle, the determined ultrasonic transducers (2, 2") are so selected and activated, that the main propagation direction (6, 6") of the ultrasonic pulse (7, 7") produced by the selected and activated ultrasonic transducers (2, 2") is perpendicular to at least one of the angled surfaces (5) of the test piece (3). The invention also relates to an associated device and ultilization.

Classes IPC  ?

• G01N 29/07 - Analyse de solides en mesurant la vitesse de propagation ou le temps de propagation des ondes acoustiques
• G01N 29/22 - Recherche ou analyse des matériaux par l'emploi d'ondes ultrasonores, sonores ou infrasonores; Visualisation de l'intérieur d'objets par transmission d'ondes ultrasonores ou sonores à travers l'objet - Détails
• G01N 29/26 - Dispositions pour l'orientation ou le balayage

Abrégé

The invention relates to a method for non-destructive ultrasonic testing of a test piece (7), said method comprising a plurality of testing cycles, each of said cycles comprising a transmitting of at least one ultrasonic impulse into the test piece (7) by a plurality of ultrasonic transducers (2) and a receiving of the at least one ultrasonic impulse passing through the test piece (7) by the ultrasonic transducer (2) or optionally by other ultrasonic transducers. The method is characterized in that the plurality of ultrasonic transducers (2) are phase-controllable and form at least one group radiator (1), and that the method comprises at least one first testing cycle in which the phase-controllable ultrasonic transducers (2) of the at least one group radiator (1) are controlled during transmitting such that the rear wall echo of the test piece (7) is detected by said group radiator during receipt and that the method comprises at least one second testing cycle in which the phase-controllable ultrasonic transducer (2) of the same at least one group radiator (1) are controlled during transmitting such that a different main direction of propagation (8, 8') of the transmitted ultrasonic impulse into the test piece (7) is attained than that from the first testing cycle. The invention further relates to an associated device and use thereof.

Classes IPC  ?

• G01N 29/26 - Dispositions pour l'orientation ou le balayage

Abrégé

The invention relates to a method for non-destructive ultrasonic testing, in which ultrasonic pulses with a pulse repetition frequency are radiated by means of an ultrasonic transmitter into a workpiece to be tested and the ultrasonic pulses are reflected to bounding surfaces in the workpiece and the reflected ultra sound is recorded by means of an ultrasonic receiver and the signals are displayed in time- or position-dependent resolution. The method is characterized in that the pulse repetition frequency is changed at least once during the method.

Classes IPC  ?

• G01N 29/34 - Génération des ondes ultrasonores, sonores ou infrasonores
• G01S 7/52 - DÉTERMINATION DE LA DIRECTION PAR RADIO; RADIO-NAVIGATION; DÉTERMINATION DE LA DISTANCE OU DE LA VITESSE EN UTILISANT DES ONDES RADIO; LOCALISATION OU DÉTECTION DE LA PRÉSENCE EN UTILISANT LA RÉFLEXION OU LA RERADIATION D'ONDES RADIO; DISPOSITIONS ANALOGUES UTILISANT D'AUTRES ONDES - Détails des systèmes correspondant aux groupes , , de systèmes selon le groupe
• G01S 15/89 - Systèmes sonar, spécialement adaptés à des applications spécifiques pour la cartographie ou la représentation

Abrégé

The invention relates to a method for the non-destructive testing of a test object (100) by way of ultrasound, said method comprising the following steps: (a) radiating directed ultrasonic pulses into the test object (100) at an irradiation angle ß, said irradiation angle ß being set electronically, (b) recording echo signals that result from the ultrasonic pulses radiated into the test object (100), (c) determining an irradiation position X0 in which echo signals can be recorded that can be associated with an error (102) in the volume of the test object, (d) determining the irradiation angle ßmax for which the ERS value of the error (102) reaches its maximum at position X0, (e) changing the irradiation position X0 → X1 on the surface of the test object (100), the change of the irradiation position being captured, (f) electronically adjusting the irradiation angle ß in such a manner that the ERS value of the error (102) reaches its maximum in the changed irradiation position X1. The invention further relates to a device which is suitable for carrying out said method.

Classes IPC  ?

• G01N 29/26 - Dispositions pour l'orientation ou le balayage
• G01N 29/06 - Visualisation de l'intérieur, p.ex. microscopie acoustique
• G01N 29/44 - Traitement du signal de réponse détecté
• G01N 29/30 - Dispositions pour l'étalonnage ou la comparaison, p.ex. avec des objets standard

Abrégé

The invention relates to a test head (1) for the non-destructive ultrasound investigation of an anomaly, in particular a welding melt zone, of a workpiece, comprising an array (2S, 2D, 2R) which is integrated in the test head (1) and comprises a plurality of ultrasonic transducers (2S, 2D, 2R) which can be arranged on a surface of the workpiece and can be selectively driven, individually or in segments, as ultrasonic receivers (2S) and ultrasonic transmitters (2R). The test head is distinguished by the fact that the array (2S, 2D, 2R) is of essentially annular design and the ultrasonic transducers (2S, 2D, 2R) are arranged and/or driven in such a manner that the respective ultrasound produced propagates parallel to the surface of the workpiece. The invention also relates to two associated methods for the non-destructive ultrasound investigation of an anomaly, in particular a welding melt zone, of a workpiece.

Classes IPC  ?

• G01N 29/26 - Dispositions pour l'orientation ou le balayage
• G01N 29/04 - Analyse de solides
• B06B 1/06 - Procédés ou appareils pour produire des vibrations mécaniques de fréquence infrasonore, sonore ou ultrasonore utilisant l'énergie électrique fonctionnant par effet piézo-électrique ou par électrostriction
• G10K 11/34 - Procédés ou dispositifs pour transmettre, conduire ou diriger le son pour focaliser ou pour diriger le son, p.ex. balayage par commande électrique de systèmes de transducteurs, p.ex. en dirigeant un faisceau acoustique

Abrégé

The invention relates to a method for the automated error detection in non-destructive material testing, comprising the steps of carrying out imaging measurements (30) on a test part, carrying out a statistical analysis (31) for each pixel with respect to the intensity fluctuation thereof, determining (35) a graduated error probability p derived from the statistical analysis (31) that a pixel can be associated with a material defect, creating a differential image (34) by subtraction of a comparison image from the measured image, and image processing (36) of the differential image as a function of the determined graduated error probability p, in order to be able to provide information about the presence of material defects in the test part. The comparison image is created from the measured image data during the testing by using (33) an error correction filter. The statistical analysis (31) for each measured pixel with respect to the intensity fluctuation thereof is carried out during the testing.

Classes IPC  ?

• G06T 7/00 - Analyse d'image

Abrégé

The invention relates to a device for the non-destructive ultrasound testing of a test object, said device comprising: at least one ultrasound transmitter (1, 19) with at least one radiating surface (30) facing the test object for the production of an ultrasound field that at least partially penetrates the test object (3), at least one ultrasound receiver (2) for at least partial detection of the ultrasound field and for conversion to an electric measurement signal, an evaluation unit for the evaluation of the measurement signal in TOFD technology. The device is characterized in that the radiating surface (30) is curved in at least one direction or the radiating surfaces define a surface that is curved in at least one direction. The invention further relates to an associated method.

Classes IPC  ?

• G01N 29/22 - Recherche ou analyse des matériaux par l'emploi d'ondes ultrasonores, sonores ou infrasonores; Visualisation de l'intérieur d'objets par transmission d'ondes ultrasonores ou sonores à travers l'objet - Détails
• G01N 29/24 - Sondes
• G01N 29/06 - Visualisation de l'intérieur, p.ex. microscopie acoustique
• G01N 29/44 - Traitement du signal de réponse détecté

Abrégé

The object of the invention is a method for the non-destructive testing of a test object 100 by way of ultrasound, said method comprising the following steps: a. radiating directed ultrasonic pulses into the test object 100 at an irradiation angle ß, wherein the irradiation angle ß is set electronically, b. recording echo signals that result from the ultrasonic pulses radiated into the test object 100, c. calculating an ERS value of an error 102 in the volume of the test object from echo signals that can be associated with the error 102. The invention further relates to an apparatus for carrying out the method.

Classes IPC  ?

• G01N 29/26 - Dispositions pour l'orientation ou le balayage
• G01N 29/06 - Visualisation de l'intérieur, p.ex. microscopie acoustique
• G01N 29/44 - Traitement du signal de réponse détecté
• G01N 29/30 - Dispositions pour l'étalonnage ou la comparaison, p.ex. avec des objets standard

Abrégé

The invention relates to an apparatus for the destruction-free detection of a rotational movement, for example of a test head, on the surface of a test object. In an embodiment which is developed further, a translatory movement on the surface of the test object can also be detected. For this purpose, the apparatus comprises a transmitter which is set up to emit a temporal sequence of excitation signals Si which at least partially penetrate the test object and interact with the latter. Provision is also made of an array which is based on a plurality of receivers which are set up to receive echo signals which result from the interaction between the excitation signals Si emitted by the transmitter and the test object. The echo signals to an excitation signal Si, which are received by the receivers, form a set M(Si) of measured values. Finally, provision is made of an evaluation unit which is set up to determine a rotational movement of the apparatus on the surface from a plurality of sets of measured values M(Si) which are correlated with temporally successive excitation signals Si.

Classes IPC  ?

• G01P 3/36 - Dispositifs caractérisés par l'emploi de moyens optiques, p.ex. en utilisant la lumière infrarouge, visible ou ultraviolette
• G01P 3/44 - Dispositifs caractérisés par l'utilisation de moyens électriques ou magnétiques pour mesurer la vitesse angulaire
• G01P 3/66 - Dispositifs caractérisés par la détermination du temps mis à parcourir une distance constante en utilisant des moyens électriques ou magnétiques
• G01P 3/68 - Dispositifs caractérisés par la détermination du temps mis à parcourir une distance constante en utilisant des moyens optiques, c. à d. en utilisant la lumière infrarouge, visible ou ultraviolette
• G01N 29/26 - Dispositions pour l'orientation ou le balayage
• G01N 29/07 - Analyse de solides en mesurant la vitesse de propagation ou le temps de propagation des ondes acoustiques
• G01N 29/11 - Analyse de solides en mesurant l'atténuation des ondes acoustiques
• G01N 27/90 - Recherche ou analyse des matériaux par l'emploi de moyens électriques, électrochimiques ou magnétiques en recherchant des variables magnétiques pour rechercher la présence des criques en utilisant les courants de Foucault

Abrégé

Briefly, in accordance with one or more embodiments, a probe of a probe systems may comprise a linear and/or two-dimensional sensor array for obtaining information regarding a test piece. The sensor elements of the sensor array may comprise ultrasonic, Eddy Current, magnetic, and/or piezoelectric elements or the like. The sensor array may be utilized to detect movement of the probe with respect to the test piece, and may be further utilized to obtain data regarding the test piece, such as image data, for example with respect to a characteristic of the test piece in detecting and locating flaws. A CAD type file or other graphical or image file of the test piece may be displayed concurrently with image data of the test piece obtained by the probe for example to assist an operator in navigating the probe with respect to the test piece, and/or to determine a coordinate location of characteristics of the test piece with respect to the CAD type file.

Classes IPC  ?

• G01N 29/04 - Analyse de solides
• G01N 29/06 - Visualisation de l'intérieur, p.ex. microscopie acoustique
• G01N 29/22 - Recherche ou analyse des matériaux par l'emploi d'ondes ultrasonores, sonores ou infrasonores; Visualisation de l'intérieur d'objets par transmission d'ondes ultrasonores ou sonores à travers l'objet - Détails
• G01N 29/265 - Dispositions pour l'orientation ou le balayage en déplaçant le capteur par rapport à un matériau fixe
• A61B 8/00 - Diagnostic utilisant des ondes ultrasonores, sonores ou infrasonores