Device and Method for Capacitive Measurement by a Floating Bridge
First Claim
1. A device for capacitive measurement by a floating bridge, comprising:
- a sensor module comprising at least one measuring electrode and at least one guard electrode arranged close to a target connected to a general earth,at least one integrated circuit for capacitive measurement, provided with a guard to which said guard electrode is connected, having an input connected to said measuring electrode, a guard connected to the reference earth of said integrated circuit, an excitation output connected to said general earth, and a measurement output, andmeans for supplying said integrated circuit for capacitive measurement in floating mode.
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Accused Products
Abstract
A device for capacitive measurement by a floating bridge, including: a sensor module including at least one measuring electrode and at least one guard electrode arranged close to a target connected to a general earth, at least one integrated circuit for capacitive measurement, provided with a guard to which the guard electrode is connected, having an input connected to the measuring electrode, a guard connected to the reference earth of the integrated circuit, an excitation output connected to the general earth, a measurement output, and structure for supplying the integrated circuit for capacitive measurement in floating mode.
51 Citations
35 Claims
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1. A device for capacitive measurement by a floating bridge, comprising:
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a sensor module comprising at least one measuring electrode and at least one guard electrode arranged close to a target connected to a general earth, at least one integrated circuit for capacitive measurement, provided with a guard to which said guard electrode is connected, having an input connected to said measuring electrode, a guard connected to the reference earth of said integrated circuit, an excitation output connected to said general earth, and a measurement output, and means for supplying said integrated circuit for capacitive measurement in floating mode. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35)
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Specification