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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 12553975 B1

PDFFull Text
Date of Patent:
Feb. 17, 2026

Filed:

Mar. 04, 2024

Electrochemical impedance spectroscopy current measurement system calibration

Applicant:

Analog Devices, Inc., Wilmington, MA (US);

Inventors:

Brian Harrington, Upton, MA (US);

Sheila Patricia Seidel, Jamaica Plain, MA (US);

Leah Alexis Garber, Carlisle, MA (US);

Sue Zheng, Melrose, MA (US);

Kate Danielle Fischl, Jamaica Plain, MA (US);

Atulya Yellepeddi, Medford, MA (US);

Evan Merkel, Wilmington, MA (US);

Assignee:

Analog Devices, Inc., Wilmington, MA (US);

Attorney:

Schwegman Lundberg & Woessner, P.A.

Primary Examiner:

Jas A Sanghera

Int. Cl.
CPC ...
G01R 35/00 (2006.01); G01R 31/3842 (2019.01); G01R 31/389 (2019.01); G01R 31/396 (2019.01);
U.S. Cl.
CPC ...
G01R 35/005 (2013.01); G01R 31/3842 (2019.01); G01R 31/389 (2019.01); G01R 31/396 (2019.01);
Abstract

A calibration system for calibrating an electrochemical impedance spectroscopy (EIS) current measurement system can include a calibration resistor, which can have a specified resistance and an unspecified reactance, a reactive element which can have a specified reactance and an unspecified resistance, and a current source, which can be configured to provide a specified current through the reactive element, through the calibration resistor, and through a sense resistor arrangement of the EIS current measurement system to be calibrated, where the sense resistor arrangement can have a resistance and a reactance. The calibration system can also include voltage measurement circuitry, which can be configured to measure (1) a first voltage across the calibration resistor and a second voltage across the sense resistor arrangement and (2) a third voltage across the reactive element and a fourth voltage across the sense resistor arrangement, to determine a calibrated resistance value and a calibrated reactance value associated with the sense resistor arrangement.

Find Patent Forward Citations

Harrington, Brian. (2026). Electrochemical impedance spectroscopy current measurement system calibration (U.S. Patent No. 12553975). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12553975

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

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