EXTERNAL COUPLING SENSOR
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United States of America Patent
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app pub date -
Jul 3, 2015
filing date -
Jul 3, 2014
priority date (Note) -
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status (Latency Note)
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Abstract
The present invention provides a sensor apparatus comprising a dielectric elastomer device, a power source, a sensor, and a processor. The dielectric elastomer device comprises a layer of dielectric material and a pair of conductive electrodes on opposing sides of the dielectric layer. The power source is coupled with the electrodes to apply a stimulus signal between the electrodes, the stimulus signal comprising two or more stimulus components of different frequencies. A sensor coupled with the electrodes obtains a sensing signal indicative of a frequency response of the dielectric elastomer device. The processor is coupled with the sensor to receive the sensing signal, and configured to detect an external coupling with the dielectric elastomer device based at least in part upon the frequency response of the dielectric elastomer device. Also provided is a method for sensing an external coupling.
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Patent Citation Ranking
- 9 Citation Count
- H03K Class
- 17.11 % this patent is cited more than
- 8 Age