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METHODS AND SYSTEMS FOR DETECTING THE HYDRATION OF SENSORS

  • US 20110054281A1
  • Filed: 09/21/2010
  • Published: 03/03/2011
  • Est. Priority Date: 12/30/2005
  • Status: Active Grant
First Claim
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1. A sensor system, comprising:

  • a sensor, the sensor including a plurality of electrodes; and

    a sensor electronics device that is coupled to the sensor and includes;

    an AC source coupled to a first electrode of the plurality of electrodes to supply an AC signal to said first electrode;

    an impedance measuring device to measure an impedance within the sensor and to transmit a hydration signal if the impedance is below a threshold impedance;

    an electrical detection circuit that receives the hydration signal and generates an interrupt; and

    a microcontroller that receives the interrupt from the electrical detection circuit and transmits a signal representative of a voltage that is to be applied to a second electrode of the plurality of electrodes.

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