Abrégé

An angle of attack sensor includes a housing having an open end and a closed end, a faceplate positioned on the open end of the housing, the faceplate comprising a periphery at an outer edge of the faceplate, a central opening, and an exterior surface extending from the periphery to the central opening, and a vane assembly extending through the central opening of the faceplate. The exterior surface of the faceplate has a sloped profile from the periphery to the central opening.

Classes IPC  ?

• G01P 13/02 - Indication de la direction uniquement, p.ex. par une girouette
• B64D 15/00 - Dégivrage ou antigivre des surfaces externes des aéronefs
• B64D 43/00 - Aménagements ou adaptations des instruments
• B64D 43/02 - Aménagements ou adaptations des instruments pour indiquer la vitesse des aéronefs ou les conditions de décrochage
• B64D 45/00 - Indicateurs ou dispositifs de protection d'aéronefs, non prévus ailleurs

Abrégé

An angle of attack sensor includes a housing having an open end and a closed end. A faceplate is positioned on the open end of the housing. The faceplate comprises an integral bearing support cage that extends into the housing and is configured to accept a first bearing and a second bearing, a periphery at an outer edge of the faceplate, a central opening, and an exterior surface extending from the periphery to the central opening. A vane assembly extends through the central opening of the faceplate. A vane shaft extends into the housing and is connected to the vane assembly, and a rotational position sensor is connected to the vane shaft.

Classes IPC  ?

• G01P 13/02 - Indication de la direction uniquement, p.ex. par une girouette
• B64D 15/00 - Dégivrage ou antigivre des surfaces externes des aéronefs
• B64D 15/12 - Dégivrage ou antigivre des surfaces externes des aéronefs par chauffage électrique
• B64D 43/00 - Aménagements ou adaptations des instruments
• B64D 43/02 - Aménagements ou adaptations des instruments pour indiquer la vitesse des aéronefs ou les conditions de décrochage
• B64D 45/00 - Indicateurs ou dispositifs de protection d'aéronefs, non prévus ailleurs

Abrégé

An angle of attack sensor includes a housing and a faceplate. A vane assembly extends through a central opening of the faceplate and includes a vane. The vane comprises a root, a tip, a leading edge, a trailing edge, a first lateral face, and a second lateral face. The first lateral face and the second lateral face are symmetric about a chord of the vane and each have a forward section with an outer surface profile that is nonlinear and geometrically convex from the leading edge to a transition point at a tangent to the widest point of the geometrically convex outer surface profile and each have an aft section with an outer surface profile that extends out to form a diverging wedge shape from the transition point to the trailing edge.

Classes IPC  ?

• G01P 13/02 - Indication de la direction uniquement, p.ex. par une girouette
• B64D 15/12 - Dégivrage ou antigivre des surfaces externes des aéronefs par chauffage électrique
• B64D 15/14 - Dégivrage ou antigivre des surfaces externes des aéronefs par chauffage électrique commandé cycliquement sur la longueur de la surface
• B64D 43/02 - Aménagements ou adaptations des instruments pour indiquer la vitesse des aéronefs ou les conditions de décrochage
• B64D 45/00 - Indicateurs ou dispositifs de protection d'aéronefs, non prévus ailleurs
• G01C 21/00 - Navigation; Instruments de navigation non prévus dans les groupes

Abrégé

The invention provides a sensor (100, 200) for determining when a latch (104) for securing an engine cowl (102) on an aircraft is secured by detecting the proximity of a latch hook (106) and a latch pin (108). The sensor includes a resonant circuit configured and adapted to transmit a status signal when the latch is in, a secured state. The sensor also includes a means for conveying status information of the latch to a location remote from the latch based on the status signal, the conveying means being operably connected to the resonant circuit. The invention also provides a method of determining when a latch is open or secured by detecting the proximity of a latch hook and a latch pin.

Classes IPC  ?

• B64D 29/06 - Fixation des nacelles, carénages ou capotages
• E05B 39/04 - Serrures indiquant un déverrouillage non-autorisé à dispositifs d'enregistrement ou de comptage

Abrégé

A total air temperature sensor includes a probe secured to a first side of a vehicle surface. The probe includes an air inlet and a temperature sensing element. Air flows into the air inlet and passes by the temperature sensing element. The temperature sensing element produces a temperature sensing element electrical signal as a function of a temperature of the air. The total air temperature sensor also includes an electronics package secured to a second side of the vehicle surface. Electronics in the electronics package receive the temperature sensing element electrical signal from the temperature sensing element and determine a total air temperature as a function of the temperature sensing element electrical signal.

Classes IPC  ?

• G01K 13/02 - Thermomètres spécialement adaptés à des fins spécifiques pour mesurer la température de fluides en mouvement ou de matériaux granulaires capables de s'écouler

Abrégé

Systems and methods for detecting ice particle accumulation is disclosed herein. In one exemplary implementation, a method for detecting ice is described in which a parameter within an interior volume of a heated conduit is measured. The method also includes detecting the presence of an accumulation of ice particles based on the parameter measured within the interior volume of the heated conduit.

Classes IPC  ?

• B64D 15/20 - Dispositifs pour détecter le givrage ou amorcer la mise en action du dégivrage
• B64D 15/22 - Mise en action automatique par détecteur de givrage

Abrégé

A harsh environment transducer including: - a substrate (14) having a first surface and a second surface, the latter being exposed to the environment - a device layer sensor means (12) on the substrate (14) for measuring a parameter associated with the environment, including a single crystal semiconductor material having a thickness of less than about 0.5 microns - an output (50) contact on the substrate (14) and in electrical communication with the sensor means (12) - a package having an internal space communicating with the environment and receiving the substrate (14) such that its first surface is substantially isolated from the environment and its second surface is substantially exposed to the environment - a connecting component (22) coupled to the package - a wire (24) electrically connecting the connecting component (22) and the output contact (50) such that an output of the sensor means can be communicated. The external surface of the wire (24) and at least one of the output contact (50) and the connecting component (22) is substantially platinum.

Classes IPC  ?

• G01L 9/00 - Mesure de la pression permanente, ou quasi permanente d’un fluide ou d’un matériau solide fluent par des éléments électriques ou magnétiques sensibles à la pression; Transmission ou indication par des moyens électriques ou magnétiques du déplacement des éléments mécaniques sensibles à la pression, utilisés pour mesurer la pression permanente ou quasi permanente d’un fluide ou d’un matériau solide fluent

Abrégé

A pressure sensor (10) for use in a harsh environment including a substrate (14) and a sensor die (12) directly coupled to the substrate (14) by a bond frame (70) positioned between the substrate (14) and the sensor die (12). The sensor die (12) includes a generally flexible diaphragm (16) configured to flex when exposed to a sufficient differential pressure thereacross. The sensor (10) further includes a piezoelectric or piezoresistive sensing element (46) at least partially located on the diaphragm (16) such that the sensing element (46) provides an electrical signal upon flexure of the diaphragm (16). The sensor (10) also includes an connecting component (22) electrically coupled to the sensing element (46) at a connection location that is fluidly isolated from the diaphragm (16) by the bond frame (70). The bond frame (70) is made of materials and the connecting component (22) is electrically coupled to the sensing element (46) by the same materials of the bond frame (70).

Classes IPC  ?

• G01L 9/00 - Mesure de la pression permanente, ou quasi permanente d’un fluide ou d’un matériau solide fluent par des éléments électriques ou magnétiques sensibles à la pression; Transmission ou indication par des moyens électriques ou magnétiques du déplacement des éléments mécaniques sensibles à la pression, utilisés pour mesurer la pression permanente ou quasi permanente d’un fluide ou d’un matériau solide fluent

Abrégé

An aircraft device power supply is capable of connecting to either an AC or a DC power bus provided on an aircraft. When connected to an aircraft's AC power bus, an AC power signal is EMI-filtered, stepped down in voltage to the same voltage as that of the DC power bus, and then rectified. When connected to an aircraft's DC power bus, a DC power signal is EMI-filtered before it is merged with the rectified AC power signal via an AC/DC switchover subcircuit. The output of the AC/DC switchover subcircuit is input to a power factor correction subcircuit which outputs a boosted DC voltage, regardless of which of the AC or DC aircraft power buses is connected to the power supply. A step down converter reduces the boosted DC voltage to a lower, system voltage which may then be further reduced or modified, as appropriate for device to be powered.

Classes IPC  ?

• H02M 3/335 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu avec transformation intermédiaire en courant alternatif par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrodes de commande pour produire le courant alternatif intermédiaire utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs