Title :
10 nF capacitance transfer standard
Author :
Callegaro, L. ; D´Elia, V. ; Serazio, D.
Author_Institution :
Dept. of Electr. Metrol., Ist. Elettrotecnico Nazionale Galileo Ferraris, Torino, Italy
Abstract :
New dielectric capacitance standards with a nominal value of 10 nF, suitable to be employed in the reproduction of the farad unit starting from the quantum Hall resistance, have been constructed. The standards are based on commercial chip capacitance components encased in a thermostat, and are defined as four terminal-pair impedance standards. The capacitance value is within 50 · 10-6 relative to nominal; dissipation factor is about 8 · 10-5 at 1 KHz. Temperature coefficient of the capacitance value versus ambient temperature is expected to be 5 · 10-9 K-1 near 23°C.
Keywords :
capacitance measurement; quantum Hall effect; thermostats; transfer standards; 1 KHz; 10 nF; 23 C; ambient temperature; capacitance measurement; capacitance transfer standard; commercial chip capacitance components; dielectric capacitance standards; dissipation factor; quantum Hall resistance; temperature coefficient; terminal-pair impedance standards; thermostat; Bridge circuits; Calibration; Capacitance; Capacitors; Electric resistance; Insulation; Noise measurement; Resistors; Surface resistance; Temperature control;
Conference_Titel :
Instrumentation and Measurement Technology Conference, 2004. IMTC 04. Proceedings of the 21st IEEE
Print_ISBN :
0-7803-8248-X
DOI :
10.1109/IMTC.2004.1351071
