CORRECTION PROCEDURES ERROR OF IMPEDANCE MEASUREMENT
Abstract
In the paper, a voltage comparison circuit and a bridge circuit for impedance measurement by phase shift conversion (IMPSC) is presented. Use of microprocessor has enabled this kind of measurement, as well as error correction of impedance measurement. Error correction is possible thanks to by use of the adaptation procedures, calibration, zeroing, and minimization of influence of the phase shift converter input impedance. Using such impedance measurement a method, as well as mentioned error correction procedures make it possible to measure an impedance of any character, and with values varying within a broad range, without changing the structure of the measuring circuit. This allows co-operation between such circuit and different kinds of impedance sensors constituting the equipment of intelligent measurement nodes in distributed measurement systems.
Event details
- Event
- XVI IMEKO World Congress
- Place
- Vienna, AUSTRIA
- Time
- 25 September 2000 - 28 September 2000