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System dedicated to monitoring the physical and/or analogue parameters of the parts of an engine

  • US 9,766,161 B2
  • Filed: 10/09/2013
  • Issued: 09/19/2017
  • Est. Priority Date: 10/10/2012
  • Status: Active Grant
First Claim
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1. System for monitoring the physical and/or analog parameters concerning parts of an engine, said system comprising at least one electronic control unit configured to call up, by the intermediary of at least one antenna, a surface acoustic wave sensor located on one of said parts, wherein:

  • the engine is compartmentalized, each compartment comprising a plurality of mobile or fixed parts of which the physical and/or analog parameters need to be monitored,each of these parts to be monitored is provided with a surface acoustic wave sensor, with these sensors each having a distinct resonance frequency specific to them,an antenna is installed inside each of the compartments, with each of these antennas being connected, alone or in pairs, to an electronic control unit,each antenna is controlled by the electronic control unit to which it is connected, to simultaneously emit a plurality of distinct signals having frequencies close to the resonance frequencies of the sensors which are located in the engine compartment of said antenna, so as to simultaneously communicate with all of these sensors, wherein the surface acoustic wave sensors that are arranged in the same compartment emit signals having frequencies in a band of frequencies different from those emitted by the surface acoustic wave sensors arranged in an immediately neighboring compartment, the sensors being arranged so that sensors located in one compartment cannot communicate with an antenna located in an immediately neighboring compartment.

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