Design of the impedance Measurement Instrument in Electrical Engineering Based on Phase-sensitive Detector

摘要

The design of impedance measurement instrument in electrical engineering based on phase-sensitive detector is introduced. The orthogonal vector measuring circuit based on phase-sensitive detector is employed in this design. The microprocessor C8051F410 is used to output the detecting signal and execute the control, calculation and display during the measurment process. The impedance measurement instrument has been applied in the Comprehensive Experimental System for Electronic Measurement Principle.