Title :
A Compensation Method to Measure the Mutual Inductance at Low Frequency
Author :
Li, Zhengkun ; Zhang, Zhonghua ; He, Qing ; Fu, Yaqiong ; Zhao, Jianting ; Han, Bing ; Li, Shisong ; Lan, Jiang ; Li, Chen
Author_Institution :
Nat. Inst. of Metrol., Beijing, China
fDate :
7/1/2011 12:00:00 AM
Abstract :
Traditionally, the most precise way to get the mutual inductance value is by a Campbell calculable mutual inductor. Here, an approach of measuring the mutual inductance at low frequency with compensation method is described. A multi-channel direct digital frequency synthesis source is developed to provide stable and precise phase. The mutual inductance is traced to the value of the frequency and resistance directly. The measurement uncertainty is 0.43 ppm at present and could be improved further.
Keywords :
direct digital synthesis; inductance measurement; measurement uncertainty; compensation method; measurement uncertainty; multichannel direct digital frequency synthesis source; mutual inductance measurement; Coils; Electrical resistance measurement; Frequency measurement; Inductance; Inductance measurement; Inductors; Resistors; Compensation; low frequency; multi-channel direct digital frequency synthesis (DDS); mutual inductance; phase accuracy;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
DOI :
10.1109/TIM.2010.2099270
