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:
Nov. 25, 2025

Filed:

Oct. 24, 2022
Applicant:

Sensylink Microelectronics Inc., Shanghai, CN;

Inventor:

Guangjun Yu, Shanghai, CN;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 27/04 (2006.01); G01N 27/22 (2006.01);
U.S. Cl.
CPC ...
G01N 27/048 (2013.01); G01N 27/045 (2013.01); G01N 27/223 (2013.01); G01N 27/226 (2013.01); G01N 27/228 (2013.01);
Abstract

A drift-free humidity sensor and a calibration method thereof are provided. The drift-free humidity sensor includes a first humidity sensor unit and a second humidity sensor unit. The first humidity sensor unit includes a first measuring electrode, and a first humidity sensitive material is covered onto the first measuring electrode. The second humidity sensor unit includes a second measuring electrode, and a second humidity sensitive material is covered onto the second measuring electrode. The first humidity sensor unit and the second humidity sensor unit have different maximum humidity drifts. The drift-free humidity sensor effectively solves the drift problem of ordinary capacitive or resistive humidity sensors.


Find Patent Forward Citations

Yu, Guangjun. (2025). Drift-free humidity sensor and calibration method thereof (U.S. Patent No. 12480902). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12480902

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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