METHODS AND SYSTEMS FOR DETECTING THE HYDRATION OF SENSORS
First Claim
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;
a power source to apply a voltage signal to the sensor;
an electrical characteristic measuring device that measures an electrical characteristic of the sensor and transmits a hydration signal if the electrical characteristic is below a set criterion;
a detection circuit that receives the hydration signal and generates an interrupt after receipt of the hydration signal; and
a microcontroller that receives the interrupt from the detection circuit and transmits a signal representative of a voltage to the sensor to a digital-to-analog converter (DAC) which transmits a stabilization sequence of voltages to the sensor.
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Accused Products
Abstract
A sensor system includes a sensor and a sensor electronics device. The sensor includes a plurality of electrodes. The sensor electronics device includes a connection detection device, a power source, and a delay circuit. The connection detection device determines if the sensor electronics device is connected to the sensor and transmits a connection signal. The delay circuit receives the connection signal, waits a preset hydration time, and couples the regulated voltage from the power source to an electrode in the sensor after the preset hydration time has elapsed. Alternatively, the sensor electronics device may include an electrical detection circuit and a microcontroller. The electrical detection circuit determines if the plurality of electrodes are hydrated and generates an interrupt if the electrodes are hydrated. A microcontroller receives the interrupt and transmits a signal representative of a voltage to an electrode of the plurality of electrodes.
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Citations
7 Claims
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1. A sensor system, comprising:
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a sensor, the sensor including a plurality of electrodes; and a sensor electronics device that is coupled to the sensor and includes; a power source to apply a voltage signal to the sensor; an electrical characteristic measuring device that measures an electrical characteristic of the sensor and transmits a hydration signal if the electrical characteristic is below a set criterion; a detection circuit that receives the hydration signal and generates an interrupt after receipt of the hydration signal; and a microcontroller that receives the interrupt from the detection circuit and transmits a signal representative of a voltage to the sensor to a digital-to-analog converter (DAC) which transmits a stabilization sequence of voltages to the sensor. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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Specification