Title :
Digital impedance bridge based on a two-phase generator
Author_Institution :
Inst. of Electr. Metrol., Tech. Univ. Wroclaw, Poland
Abstract :
A digital impedance bridge composed of digital sine wave generators and inductive voltage dividers (IVDs) designed for precision comparison of different impedance elements is described. It enables one to measure impedance from 10 /spl Omega/ up to 100 k/spl Omega/ in the frequency range between 100 Hz and 1.6 kHz with a relative uncertainty smaller than 50 ppm.
Keywords :
bridge circuits; bridge instruments; digital instrumentation; electric impedance measurement; voltage dividers; waveform generators; 100 Hz to 1.6 kHz; digital impedance bridge; digital sine wave generators; frequency range; impedance element comparison; inductive voltage dividers; relative uncertainty; two-phase generator; Bridge circuits; Detectors; Equivalent circuits; Impedance measurement; Measurement standards; Pulse generation; Random access memory; Signal generators; Switches; Voltage control;
Conference_Titel :
Precision Electromagnetic Measurements Digest, 1996 Conference on
Conference_Location :
Braunschweig, Germany
Print_ISBN :
0-7803-3376-4
DOI :
10.1109/CPEM.1996.547114
