Title :
Cryogenic current comparator implementation at CENAM
Author :
Sanchez, C. ; Aviles, D. ; Hernandez, D. ; Duran, G.
Author_Institution :
Centro Nacional de Metrol., Queretaro, Mexico
Abstract :
The implementation of a Sullivan type [1974], cryogenic current comparator bridge (CCC) is presented. Some design aspects are discussed, such as the need to match the time constants of the current source filters and the modifications in the CCC connections in order to increase the leakage resistance. Some preliminary results are given.
Keywords :
Bridge circuits; Calibration; Current comparators; Electric resistance measurement; Measurement standards; CENAM implementation; Sullivan type bridge; connections modification; cryogenic current comparator bridge; current source filters; design aspects; leakage resistance; ratio measurements; resistance standards; standard resistors; time constants; Bridge circuits; Capacitors; Copper; Cryogenics; Current measurement; Electrical resistance measurement; Low pass filters; Resistors; SQUIDs; Wire;
Conference_Titel :
Precision Electromagnetic Measurements Digest, 2000 Conference on
Conference_Location :
Sydney, NSW, Australia
Print_ISBN :
0-7803-5744-2
DOI :
10.1109/CPEM.2000.850894
