Title :
A fast L-R comparison system by digital sampling measurement approach
Author :
Yan, Yang ; Wei, Wang ; Lu, Huang ; Zuliang, Lu ; Wenjun, Lu
Author_Institution :
Nat. Inst. of Metrol., Beijing, China
Abstract :
A digital sampling system which can fast compare inductors with ac standard resistors in the frequency range between 20 Hz and 20 kHz is described. It can also precisely measure inductance at heavy current or high voltage. Inductors from 10mH to 10H in the low audio frequency range can be measured with the least relative uncertainty of 50 to 100 parts in 106.
Keywords :
inductance measurement; inductors; resistors; AC standard resistors; audio frequency range; digital sampling measurement approach; fast L-R comparison system; fast compare inductors; frequency 20 Hz to 20 kHz; inductance measurement; relative uncertainty; Bridge circuits; Circuit testing; Current measurement; Frequency; Impedance; Inductance measurement; Phase measurement; Sampling methods; Switches; Voltage;
Conference_Titel :
Precision Electromagnetic Measurements (CPEM), 2010 Conference on
Conference_Location :
Daejeon
Print_ISBN :
978-1-4244-6795-2
DOI :
10.1109/CPEM.2010.5543218
