A High Resolution, Four-Terminal, ac Resistance Bridge for Low Temperature Use

1 April 1972

journal article
research article
Published by AIP Publishing in Review of Scientific Instruments

Vol. 43 (4) , 612-613
https://doi.org/10.1063/1.1685704

Abstract

Using operational amplifiers in the follower configuration, a four‐terminal, ac resistance bridge can be inexpensively constructed for use with low temperature resistance thermometers from 10 Ω to 10 kΩ (and higher if necessary). Operating the bridge with 1 mV across the thermometer (providing power dissipation of 1 nW at 1 kΩ), the resolution and stability over several hours are 0.003% of the resistance.

Keywords

RESOLUTION
TERMINAL
DISSIPATION
CONFIGURATION
HOURS
AMPLIFIERS

This publication has 1 reference indexed in Scilit:

Experimental investigations of critical phenomena
Reports on Progress in Physics, 1967