ELECTROCHEMICAL IMPEDANCE SPECTROSCOPY CURRENT MEASUREMENT SYSTEM CALIBRATION

Organization Name

Analog Devices, Inc.

Inventor(s)

Brian Harrington of Upton MA (US)

Sheila Patricia Seidel of Jamaica Plain MA (US)

Leah Alexis Garber of Carlisle MA (US)

Sue Zheng of Melrose MA (US)

Kate Danielle Fischl of Jamaica Plain MA (US)

Atulya Yellepeddi of Medford MA (US)

Evan Merkel of Wilmington MA (US)

ELECTROCHEMICAL IMPEDANCE SPECTROSCOPY CURRENT MEASUREMENT SYSTEM CALIBRATION - A simplified explanation of the abstract

This abstract first appeared for US patent application 18595283 titled 'ELECTROCHEMICAL IMPEDANCE SPECTROSCOPY CURRENT MEASUREMENT SYSTEM CALIBRATION

The abstract describes a calibration system for calibrating an electrochemical impedance spectroscopy (EIS) current measurement system. This system includes a calibration resistor, a reactive element, and a current source to provide a specified current through the components of the EIS system to be calibrated.

The calibration system includes a calibration resistor with a specified resistance and unspecified reactance.
A reactive element with a specified reactance and unspecified resistance is also part of the system.
A current source is configured to provide a specified current through the reactive element, calibration resistor, and a sense resistor arrangement of the EIS current measurement system.
Voltage measurement circuitry is used to measure voltages across the calibration resistor, sense resistor arrangement, reactive element, and sense resistor arrangement to determine calibrated resistance and reactance values.

Potential Applications: - Calibration of electrochemical impedance spectroscopy (EIS) current measurement systems - Precision measurement of resistance and reactance values in electronic circuits

Problems Solved: - Ensures accurate calibration of EIS current measurement systems - Provides precise resistance and reactance measurements in electronic circuits

Benefits: - Improved accuracy in impedance measurements - Enhanced performance of electronic devices and systems

Commercial Applications: Title: Precision Calibration System for Electronic Circuits This technology can be used in industries such as electronics manufacturing, medical devices, and telecommunications for precise calibration of impedance measurement systems.

Questions about the technology: 1. How does the calibration system ensure accurate resistance and reactance measurements? 2. What are the potential implications of using this technology in electronic circuit design and testing?

Original Abstract Submitted

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.