US-12625015-B2 - Temperature sensing device for aircraft wheel brake

Abstract

A temperature sensing device to sense aircraft wheel brake temperature is disclosed including a sensing device substrate; and one or more package layers attached to the sensing device substrate, wherein: the sensing device substrate carries one or more electronic components for sensing temperature. Also disclosed is a wireless relay device to wirelessly transmit an interrogation signal to a temperature sensing device and wirelessly receive an output signal from the temperature sensing device, the temperature sensing device to sense aircraft wheel brake temperature, the wireless relay device comprising: a relay substrate; and one or more package layers attached to the relay substrate, wherein: the relay substrate carries one or more electronic components of the wireless relay device. Also disclosed is a method of manufacturing a temperature sensing device to sense aircraft wheel brake temperature.

Inventors

• Mauricio Pereira da Cunha
• Robert J. Lad
• Ian White
• Kurt Bruggemann
• Richard Downing
• Maud Consola

Assignees

• AIRBUS OPERATIONS LIMITED
• AIRBUS OPERATIONS (SAS)

Dates

Publication Date

20260512

Application Date

20221129

Claims (10)

1. 1 . A temperature sensing device to sense aircraft wheel brake temperature during operation of the aircraft wheel brake, the temperature sensing device comprising: a sensing device substrate; and a first package layer and a second package layer attached to the sensing device substrate, wherein: the sensing device substrate carries one or more of a surface acoustic wave, SAW, sensor element and a sensor antenna, electrically coupled to the SAW sensor element, for sensing temperature, wherein the first package layer is disposed on a first surface of the sensing device substrate enclosing the sensor antenna and the SAW sensor element, wherein the second package layer is disposed on the first package layer such that the first package layer is between the sensing device substrate and the second package layer, wherein the temperature sensing device is configured to withstand temperatures in excess of 1000° C., and wherein the second package layer provides additional rigidity and physical robustness for the temperature sensing device to reliably function in a harsh environment.
2. 2 . The temperature sensing device according to claim 1 , wherein the one or more package layers comprise a third package layer overlaid on a second surface of the sensing device substrate, the second surface on the opposite side of the sensing device substrate to the first surface.
3. 3 . The temperature sensing device according to claim 1 , wherein the first package layer comprises one or more slots to accommodate the electronic components carried by the sensing device substrate.
4. 4 . The temperature sensing device according to claim 1 , wherein the sensing device substrate and the first and the second package layers are hermetically sealed together.
5. 5 . The temperature sensing device according to claim 1 , wherein the sensing device substrate and/or the one or more package layers comprise a ceramic material.
6. 6 . A method of manufacturing a temperature sensing device to sense aircraft wheel brake temperature, the method comprising: providing a sensing device substrate carrying a surface acoustic wave, SAW, sensor element and a sensor antenna, electrically coupled to the SAW sensor element, for sensing temperature; attaching first and second package layers to the sensing device substrate; wherein the first package layer is disposed on a first surface of the sensing device substrate enclosing the sensor antenna and the SAW sensor element, wherein the second package layer is disposed on the first package layer such that the first package layer is between the sensing device substrate and the second package layer, wherein the temperature sensing device is configured to withstand temperatures in excess of 1000° C., and wherein the second package layer provides additional rigidity and physical robustness for the temperature sensing device to reliably function in a harsh environment.
7. 7 . The method according to claim 6 , wherein attaching one or more package layers comprises: overlaying a first package layer on a first surface of the sensing device substrate to cover the sensor antenna and the SAW sensor element.
8. 8 . The method according to claim 6 , wherein attaching one or more package layers comprises: overlaying a second package layer on the first package layer such that the first package layer is between the sensing device substrate and the second package layer.
9. 9 . The method according to claim 8 , wherein attaching one or more package layers comprises: overlaying a third package layer on a second surface of the sensing device substrate, the second surface on the opposite side of the sensing device substrate to the first surface.
10. 10 . The method according to claim 6 , wherein attaching one or package layers comprises: hermetically sealing the sensing device substrate and one or more package layers together.

Description

CROSS RELATED APPLICATION This application claims priority to U.S. Provisional Patent Application Ser. No. 63/284,510, filed Nov. 30, 2021, the content of which is incorporated by reference in its entirety. TECHNICAL FIELD The present invention relates to sensing aircraft wheel brake temperature. More specifically, the present invention relates to a temperature sensing device. BACKGROUND When aircraft wheel brakes are applied to reduce the speed of an aircraft, the temperature of the aircraft wheel brakes rises. It can be advantageous to monitor the temperature of the aircraft wheel brakes to, for example, ensure that the brakes do not overheat. For example, temperature sensors such as thermocouples can be used to sense temperature. SUMMARY A first aspect of the present invention provides a temperature sensing device to sense aircraft wheel brake temperature, the temperature sensing device comprising: a sensing device substrate; and one or more package layers attached to the sensing device substrate, wherein: the sensing device substrate carries one or more electronic components for sensing temperature. Optionally, the electronic components comprise: a surface acoustic wave, SAW, sensor element mounted to the sensing device substrate; and a sensor antenna, electrically coupled to the SAW sensor element, provided on the sensing device substrate. Optionally, the one or more package layers comprise a first package layer overlaid on a first surface of the sensing device substrate to cover the sensor antenna and the SAW sensor element. Optionally, the one or more package layers comprise a second package layer overlaid on the first package layer such that the first package layer is between the sensing device substrate and the second package layer. Optionally, the one or more package layers comprise a third package layer overlaid on a second surface of the sensing device substrate, the second surface on the opposite side of the sensing device substrate to the first surface. Optionally, the first package layer comprises one or more slots to accommodate the electronic components carried by the sensing device substrate. Optionally, the sensing device substrate and the one or more package layers are hermetically sealed together. Optionally, the sensing device substrate and/or the one or more package layers comprise a ceramic material. According to a second aspect of the present invention, there is provided a method of manufacturing a temperature sensing device to sense aircraft wheel brake temperature, the method comprising: providing a sensing device substrate carrying one or more electronic components for sensing temperature; and attaching one or more package layers to the sensing device substrate. Optionally, in the method according to the second aspect, providing the sensing device substrate comprises providing: a surface acoustic wave, SAW, sensor element mounted to the sensing device substrate; and a sensor antenna, electrically coupled to the SAW sensor element, on the sensing device substrate. Optionally, in the method according to the second aspect, attaching one or more package layers comprises: overlaying a first package layer on a first surface of the sensing device substrate to cover the sensor antenna and the SAW sensor element. Optionally, in the method according to the second aspect, attaching one or more package layers comprises: overlaying a second package layer on the first package layer such that the first package layer is between the sensing device substrate and the second package layer. Optionally, in the method according to the second aspect, attaching one or more package layers comprises: overlaying a third package layer on a second surface of the sensing device substrate, the second surface on the opposite side of the sensing device substrate to the first surface. Optionally, in the method according to the second aspect, attaching one or package layers comprises: hermetically sealing the sensing device substrate and one or more package layers together. According to a third aspect of the present invention, there is provided a wireless relay device to wirelessly transmit an interrogation signal to a temperature sensing device and wirelessly receive an output signal from the temperature sensing device, the temperature sensing device to sense aircraft wheel brake temperature, the wireless relay device comprising: a relay substrate; and one or more ceramic package layers attached to the relay substrate, wherein: the relay substrate carries one or more electronic components of the wireless relay device. BRIEF DESCRIPTION OF THE DRAWINGS Embodiments of the invention will now be described, by way of example only, with reference to the accompanying drawings, in which: FIG. 1 is a simplified schematic view of an aircraft on which examples may be deployed; FIG. 2 is a simplified schematic view of a brake and a wheel of an aircraft landing gear assembly according to an example; FIG. 3 is a simplified sche