Simple Phase-Sensitive Detector for Wheatstone Bridge Resistance Measurements

Publication Type

Journal Article

LBNL Report Number

LBL-18002

Abstract

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.

Journal

Review of Scientific Instruments

Volume

56

Year of Publication

1985

Pagination

755-757

Call Number

LBL-18002