Patent · US Active

Piezoelectric sensing apparatus and method

US10873020B2 · kind B2 · utility

0Cited by

0References

20Claims

0Family size

Assignee

TEXAS INSTRUMENTS INCORPORATED · US

Inventors

Wei-Yan Shih · Plano, US
Sudhanshu Khanna · Richardson, US
Michael Zwerg · Dallas, US
Juergen Luebbe · Fairview, US
Gregory Allen North · Austin, US
Steven Craig Bartling · Plano, US
Leah Trautmann · Longmont, US
Scott R. Summerfelt · Dallas, US

Key dates

Filing date	Aug 8, 2017
Grant date	Dec 22, 2020
Priority date	—
Expiry date	Mar 26, 2039

Classification

Technology area (CPC H)Electricity
CPC primaryH10N30/87
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A piezoelectric sensor with: (i) a capacitive element, comprising piezoelectric material; (ii) a pre-conditioning circuit, comprising circuitry for establishing a polarization of the capacitive element in a polarizing mode; and (iii) signal amplification circuitry for providing a piezoelectric-responsive output signal, in response to charge across the capacitive element in a sensing mode.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.