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.
BT - Review of Scientific Instruments C1 -Windows and Daylighting Group
C2 - LBL-18002 CN - LBL-18002 LA - eng M1 - 5 N2 -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.
PY - 1985 SP - 755 EP - 757 T2 - Review of Scientific Instruments TI - Simple Phase-Sensitive Detector for Wheatstone Bridge Resistance Measurements VL - 56 ER -