Title :
An improved two terminal-pair capacitance bridge at NIM
Author :
Yan Yang ; Wenjun Lu ; Jianting Zhao ; Lu Huang ; Zuliang Lu
Author_Institution :
Nat. Inst. of Metrol., Beijing, China
Abstract :
An improved two terminal-pair coaxial AC bridge with auto source balance is constructed at NIM for high precision capacitance measurement. The errors introduced by auto source balance in the bridge are at negligible level. The bridge can disseminate the calculable capacitance to 1 pF, and transmit capacitance from 1 pF to 10000 pF. A minimum standard uncertainty 7.7 × 10-9 is achieved at 1592 Hz.
Keywords :
balances; bridge circuits; capacitance measurement; NIM; autosource balance; capacitance 1 pF to 10000 pF; capacitance measurement; frequency 1592 Hz; improved two terminal-pair coaxial AC capacitance bridge; Bridge circuits; Calibration; Capacitance; Capacitors; Standards; Uncertainty; Wires; Capacitance bridge; coaxial; source balance; two terminal-pair; voltage follower;
Conference_Titel :
Precision Electromagnetic Measurements (CPEM 2014), 2014 Conference on
Conference_Location :
Rio de Janeiro
Print_ISBN :
978-1-4799-5205-2
DOI :
10.1109/CPEM.2014.6898342
