Temperature detection system using a radio-tag comprising a thermistor
AssigneeAirbus Operations GmbH
InventorPierre Charon
Life of this patent
Estimating the term…
Abstract
An onboard system for detecting a temperature of an element includes a radio-tag, the radio-tag being fixed onto the element and having an antenna, the antenna having a load, and a radio-tag reader. The radio-tag reader is designed to emit an interrogation signal and to receive in return a response signal coming from the radio-tag. The load includes a thermistor and the radio-tag reader is adapted for determining a gain and/or a phase-shift between the interrogation signal and the response signal and for deducing a temperature of the element therefrom.
Claims7
An onboard system for detecting a temperature of an element, the system comprising:
- a radio-tag, the radio-tag being fixed onto the element and comprising an antenna, the antenna comprising a load;
- and
- a radio-tag reader, the radio-tag reader configured to emit an interrogation signal and to receive in return a response signal coming from the radio-tag, to determine at least one of a gain and a phase-shift between the interrogation signal and the response signal, to deduce a temperature of the element as a function of at least one of the gain and of the phase-shift between the interrogation signal and the response signal, and to determine an estimation of a speed of the air flow as a function of the measured variation of the temperature over time,
- wherein the load comprises a thermistor.
A radio-tag reader for an onboard system for detecting a temperature of an element, wherein the radio-tag reader is configured to:
- emit an interrogation signal and to receive in return a response signal coming from a radio-tag fixed onto the element,
- determine at least one of a gain and a phase-shift between the interrogation signal and the response signal,
- find in a database a correspondence between, on the one hand, a temperature and, on the other, at least one of the gain and the phase-shift between the interrogation signal and the response signal,
- deduce a temperature of the element as a function of at least one of the gain and of the phase-shift between the interrogation signal and the response signal, and
- determine an estimation of a speed of the air flow as a function of the measured variation of the temperature over time.
A method for detecting a temperature of an element, the element comprising a radio-tag, the radio-tag comprising a load comprising a thermistor, the method being executed by a radio-tag reader and comprising:
- emitting an interrogation signal;
- receiving in return a response signal coming from the radio-tag;
- determining at least one of a gain and a phase-shift between the interrogation signal and the response signal;
- deducing a temperature as a function of at least one of the gain and phase-shift;
- and
- determining an estimation of a speed of the air flow as a function of the measured variation of the temperature over time.
Dependencies are inferred from the claim text.