A sensor provided with the piezo-electric detector which has compensation with poor grounding - Hydria A-Tee Dolju Baza The Proise Vodony Vuziny Systemov in Electronic D.O.O.

Title:

A sensor provided with the piezo-electric detector which has compensation with poor grounding

Document Type and Number:

Japanese Patent JP6000972

Kind Code:

B2

Abstract:

A sensor includes a piezoelectric detector (10) mounted in a support having electrically conductive walls forming a mechanical ground (MM), and an amplifier for processing the signal delivered by the piezoelectric detector, defining an electronic ground (ME) and at least a capacitive feedback loop (16). A voltage adder circuit (61) is inserted into the capacitive feedback loop in order to add an electrical voltage which varies as a function of the potential difference between the mechanical ground (MM) and the electronic ground (ME), so that the variations of this potential difference are continuously compensated for at the input (13) of the processing amplifier (12) receiving the signal delivered by the piezoelectric detector (10).

Inventors:

Gwang, Marcel

Application Number:

JP2013545317A

Publication Date:

October 05, 2016

Filing Date:

December 20, 2011

Export Citation:

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