A Cost-Effective And Accurate Electrical Impedance Measurement Circuit Design For Sensors

Ciaran Doyle; Daniel Riordan; Joseph Walsh

doi:10.21307/ijssis-2017-881

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A Cost-Effective And Accurate Electrical Impedance Measurement Circuit Design For Sensors

International Journal on Smart Sensing and Intelligent Systems

Volume 9 (2016): Issue 2 (January 2016)

By: Ciaran Doyle, Daniel Riordan and Joseph Walsh

Open Access

|Jun 2016

Abstract

A circuit design with bespoke control software is described which has delivered precision in electrical impedance measurements of ~ 10ppm, after calibration. It is low-cost and applicable to jobs such as direct measurement using a sensor whose resistance changes with some physical quantity of interest; calibration at end of line in the production of such sensors; or calibration of equipment which may be out of warranty. It was developed using resistance temperature detectors (RTDs)

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Articles in this issue

DOI: https://doi.org/10.21307/ijssis-2017-881 | Journal eISSN: 1178-5608

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Language: English

Page range: 509 - 525

Submitted on: Feb 3, 2015

Accepted on: Mar 31, 2016

Published on: Jun 1, 2016

Published by: Macquarie University, Australia

In partnership with: Paradigm Publishing Services

Publication frequency: 1 issue per year

Keywords:

bias,

calibration,

accuracy,

precision,

drift,

Kelvin 4-wire circuit,

Anderson loop

Related subjects:

Engineering,

Introductions and overviews,

Engineering, other

© 2016 Ciaran Doyle, Daniel Riordan, Joseph Walsh, published by Macquarie University, Australia
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Volume 9 (2016): Issue 2 (January 2016)