Next Article in Journal
A Small-Displacement Sensor Using Total Internal Reflection Theory and Surface Plasmon Resonance Technology for Heterodyne Interferometry
Previous Article in Journal
Fabrication and Characterization of a Ruthenium Nitride Membrane for Electrochemical pH Sensors
Article Menu

Export Article

Open AccessArticle
Sensors 2009, 9(4), 2491-2497;

Chopper Stabilized Low Resistance Comparator

Serbian Transmission System / Nade Dimic 40, 19210 Bor, Serbia
Mining and Metallurgy Institute, Department of Informatics / Zeleni Bulevar 35, 19210 Bor, Serbia
Author to whom correspondence should be addressed.
Received: 18 March 2009 / Revised: 6 April 2009 / Accepted: 7 April 2009 / Published: 9 April 2009
(This article belongs to the Section Chemical Sensors)
Full-Text   |   PDF [434 KB, uploaded 21 June 2014]


The paper describes an improvement of the chopper method for elimination of parasitic voltages in a low resistance comparison and measurement procedure. The basic circuit diagram along with a short description of the working principle are presented and the appropriate low resistance comparator prototype was designed and realized. Preliminary examinations confirm the possibility of measuring extremely low voltages. Very high accuracy in resistance comparison and measurement is achieved (0.08 ppm for 1,000 attempts). Some special critical features in the design are discussed and solutions for overcoming the problems are described. View Full-Text
Keywords: Low resistance; measuring; chopper comparator; high accuracy Low resistance; measuring; chopper comparator; high accuracy
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

Share & Cite This Article

MDPI and ACS Style

Radetic, R.M.; Milivojevic, D.R. Chopper Stabilized Low Resistance Comparator. Sensors 2009, 9, 2491-2497.

Show more citation formats Show less citations formats

Related Articles

Article Metrics

Article Access Statistics



[Return to top]
Sensors EISSN 1424-8220 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top