<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>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)</p>
</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)

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

International Journal on Smart Sensing and Intelligent Systems

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

A circuit design with bespoke control software is described which has delivered precision in electrical impedance measurements of ~ 10ppm, after calibration....

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

Published Online: Jun 01, 2016

Page range: 509 - 525

Received: Feb 03, 2015

Accepted: Mar 31, 2016

DOI: https://doi.org/10.21307/ijssis-2017-881

Keywords
bias, calibration, accuracy, precision, drift, Kelvin 4-wire circuit, Anderson loop

© 2016 Ciaran Doyle et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

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

Published Online: Jun 01, 2016

Page range: 509 - 525

Received: Feb 03, 2015

Accepted: Mar 31, 2016

DOI: https://doi.org/10.21307/ijssis-2017-881

Keywordsbias, calibration, accuracy, precision, drift, Kelvin 4-wire circuit, Anderson loop

© 2016 Ciaran Doyle et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Keywords
bias, calibration, accuracy, precision, drift, Kelvin 4-wire circuit, Anderson loop