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.:

US 10254325 B1

PDF
Full Text
Expired
Date of Patent:
Apr. 09, 2019

Filed:

Apr. 21, 2015
Applicant:

The United States of America As Represented BY the Administrator of the National Aeronautics & Space Administration, Washington, DC (US);

Inventor:

Scott Jensen, Carriere, MS (US);

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01J 5/44 (2006.01); G01R 29/22 (2006.01); G01H 11/08 (2006.01);
U.S. Cl.
CPC ...
G01R 29/22 (2013.01); G01H 11/08 (2013.01);
Abstract

A piezoelectric field disturbance sensing system includes a piezoelectric element for generating mechanical energy when electrically excited and for generating electrical energy when mechanically deformed. A mass is coupled to the piezoelectric element. A signal generator is coupled to the piezoelectric element for applying electrical energy thereto for a fixed period of time. As a result, the piezoelectric element undergoes mechanical deformation and the mass reverberates in response to such mechanical deformation. A charge monitor is coupled to the piezoelectric element for monitoring electrical energy generated thereby during a time period subsequent to the fixed period of time.


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