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.

Date of Patent:
Feb. 27, 2024

Filed:

Oct. 19, 2021
Applicant:

Mitsubishi Electric Corporation, Tokyo, JP;

Inventors:

Rokuzo Hara, Tokyo, JP;

Tomonori Kimura, Tokyo, JP;

Koji Ibata, Tokyo, JP;

Yasuhiro Nishioka, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01H 11/08 (2006.01); G01H 1/00 (2006.01); H10N 30/30 (2023.01);
U.S. Cl.
CPC ...
G01H 11/08 (2013.01); H10N 30/302 (2023.02);
Abstract

A test object includes a sensor housing for vibrating together with a test object in synchronism with vibration of the test object; a piezoelectric substrate for vibrating together with the sensor housing in synchronism with vibration of the sensor housing, where a first interdigital electrode, a first terminal, a second interdigital electrode, and a second terminal are disposed on a first surface of the piezoelectric substrate, and the piezoelectric substrate is disposed inside the sensor housing to be fixed to the sensor housing; an amplifier for receiving a signal output from the second terminal as an input signal, amplifying the received input signal, and transmitting the input signal after the amplification to the first terminal as an output signal; a deformable layer being elastic and having a first surface adhered to a second surface of the piezoelectric substrate; and a heavy object having a first surface adhered to a second surface of the deformable layer.


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