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 9696272 B1

PDF
Full Text
Expired
Date of Patent:
Jul. 04, 2017

Filed:

Aug. 07, 2015
Applicant:

Silicon Laboratories Inc., Austin, TX (US);

Inventors:

Elzbieta A. Ledwosinska, Austin, TX (US);

John C. Gammel, Round Rock, TX (US);

William H. Simcoe, Austin, TX (US);

Assignee:

Silicon Laboratories Inc., Austin, TX (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 27/22 (2006.01);
U.S. Cl.
CPC ...
G01N 27/225 (2013.01); G01N 27/228 (2013.01);
Abstract

Systems and methods are provided that may be implemented to improve accuracy of relative humidity (RH) determination from dielectric sensing material-based RH sensors, e.g., by decreasing shift and drift effects and compensating for dielectric material aging to improve RH sensor accuracy. The disclosed systems and methods may be implemented to improve RH sensing accuracy by correcting humidity-sensitive electrical parameters (e.g., capacitance, effective resistance, etc.) based on other other measured sensor electrical operating characteristics (e.g., such as real time sensor circuit phase angle) and/or selection of sensor electrical parameters (e.g., such as optimized operating frequency) that are employed for sensing changes in dielectric constant of a dielectric material-based RH sensor.


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