Title :
A new, larger cryogenic capacitor, and a direct comparison to the calculable capacitor
Author :
El Sabbagh, M.A. ; Yicheng Wang ; Zimmerman, N.M.
Author_Institution :
Nat. Inst. of Stand. & Technol., Gaithersburg, MD, USA
Abstract :
A key element of the Electron-Counting Capacitance Standard (ECCS) is the cryogenic capacitor, C/sub cryo/. We report on a new version of C/sub cryo/ which has a value of 10 pF, ten times larger than previous versions. We also report on a new way to compare C/sub cryo/ to the calculable capacitor, C/sub calc/ which does not require tuning C/sub cryo/.
Keywords :
capacitance measurement; capacitors; cryogenic electronics; measurement standards; 10 pF; calculable capacitor; cryogenic capacitor; electron counting capacitance standard; Bridge circuits; Bridges; Calibration; Capacitance; Capacitors; Cryogenics; NIST; Protection; Stability; Testing;
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.2002.1034752
