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:
Jul. 29, 2025

Filed:

Apr. 11, 2023
Applicant:

Toyota Motor Engineering & Manufacturing North America, Inc., Plano, TX (US);

Inventors:

Xiaopeng Li, Ann Arbor, MI (US);

Taehwa Lee, Ann Arbor, MI (US);

Ziqi Yu, Ann Arbor, MI (US);

Yuyang Song, Ann Arbor, MI (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G01L 9/08 (2006.01); G01L 9/00 (2006.01); G01L 9/06 (2006.01); G01M 7/02 (2006.01); G01M 17/02 (2006.01);
U.S. Cl.
CPC ...
G01M 7/025 (2013.01); G01L 9/0022 (2013.01); G01L 9/06 (2013.01); G01L 9/08 (2013.01);
Abstract

Systems described herein relate to sensing pressure. In one arrangement, a pressure sensor is disclosed. The pressure sensor includes a circuit including a resistor, an inductor, and a capacitor. The circuit generates an electrical resonance. The resistor is an elastomer having a resistance and connected to an outer surface of an inflatable. The pressure sensor also includes a resonator connected to the circuit. The resonator generates a mechanical resonance coupling with the electrical resonance to create a detuning frequency having a sublinear dependence on the resistance of the elastomer. A pressure of the inflatable correlates with the detuning frequency.


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