The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 04, 2021
Filed:
Nov. 06, 2019
Vibration Measurement Solutions, Inc., Houston, TX (US);
George V. Zusman, Orchard Park, NY (US);
Vibration Measurement Solutions, Inc., Houston, TX (US);
Abstract
A piezoelectric pressure sensor is characterized by a piezoelectric transducer having substantially parallel piezoelectric plate faces oriented in planes that extend substantially parallel a principal longitudinal axis of the sensor, a pair of clamping members engaging the piezoelectric plate faces, a membrane cap covering the clamping members and mounted on a stem to define an enclosed protective chamber that isolates the piezoelectric transducer and the clamping members from an environment outside the membrane cap. The membrane cap has a membrane wall engaging outside faces of the clamping members. The membrane wall undergoes inward deflections in response to pressure increases in the environment outside the membrane cap. The clamping members undergo corresponding inward deflections in response to the inward deflections of the membrane wall. The inward deflections of the clamping members act on the piezoelectric plate faces, resulting in deformations of the piezoelectric transducer that produce corresponding electrical signals.