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SENSING SYSTEM AND METHOD

  • US 20170138922A1
  • Filed: 01/30/2017
  • Published: 05/18/2017
  • Est. Priority Date: 11/16/2006
  • Status: Active Grant
First Claim
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1. A system comprising:

  • a resonant sensor configured to be in contact with oil within a gearbox of a rotor system, the sensor including electrodes and a sensing region circuit that is configured to generate electrical stimuli at different times during an operational life of the gearbox, each electrical stimulus having multiple different frequencies that are applied to the oil via the electrodes; and

    one or more processors configured to receive multiple electrical signals from the resonant sensor, the electrical signals representative of impedance responses of the oil to the electrical stimuli, the one or more processors configured to analyze the impedance responses and determine a concentration of a polar analyte in the oil at each of the different times based on the impedance responses, the one or more processors further configured to calculate a degradation value for the gearbox based on the concentration of the polar analyte in the oil,wherein, responsive to the degradation value exceeding a designated degradation threshold, the one or more processors are configured to at least one of schedule maintenance for the rotor system, provide an alert to schedule maintenance for the rotor system, or prohibit operation of the rotor system until maintenance is performed on the rotor system.

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