%0 Journal Article %A Dennis L DiBartolomeo %A Joseph H Klems %B Review of Scientific Instruments %D 1985 %G eng %L LBL-18002 %P 755-757 %T Simple Phase-Sensitive Detector for Wheatstone Bridge Resistance Measurements %V 56 %1

Windows and Daylighting Group

%2 LBL-18002 %X

A simple and economical phase-sensitive detector circuit is described. The circuit, which was developed for use with large-area heat-flow sensors that employ resistance temperature detection, uses a synchronous rectifier driven by a square wave. It is shown that the circuit has good linearity, resolution, and immunity to external and internal noise.