An investigation of the effects of bridge arm configuration, i.e., arm impedance ratios, of a Wheatstone bridge circuit are presented. Although the generalized treatment given can be applied to any resistance change transducer in a Wheatstone bridge, particular emphasis has been placed on the use of thermistors in solution phase calorimetry. The work presented characterizes the various bridge configurations in terms of their sensitivity, linearity, and theoretical temperature resolution.
Bibliographical noteFunding Information:
The authors wish to thank the National Institutes of Health for its financia1 support through Grant Number GM-17913 which made this work possible. One of us (LDB) was a recipient of a Graduate Fellowship from the University of Georgia