Title :
The modification of direct current comparator to extend range up
Author :
Shao Haiming ; Liang Bo ; Lin Feipeng
Author_Institution :
Nat. Inst. of Metrol., Beijing, China
Abstract :
A commercial DCC bridge is modified to extend resistance measurement to higher than 1 k/spl Omega/ by changing the track point and driven by a single voltage source. The measurement result shows an uncertainty of ratio within 0.1 to 1.5 parts in 10/sup 6/.
Keywords :
bridge instruments; calibration; current comparators; electric resistance measurement; measurement standards; measurement uncertainty; commercial DCC bridge; direct current comparator; resistance measurement; resistance standards; single voltage source; standard resistor calibration; track point; uncertainty; Bridge circuits; Calibration; Current measurement; Electrical resistance measurement; Insulation life; Magnetic modulators; Magnetic noise; Resistors; Tracking loops; Voltage;
Conference_Titel :
Precision Electromagnetic Measurements, 2002. Conference Digest 2002 Conference on
Conference_Location :
Ottawa, Ontario, Canada
Print_ISBN :
0-7803-7242-5
DOI :
10.1109/CPEM.2002.1034715
