Title :
AC-DC difference precision measurement of μpot
Author :
Wei, Yih-cheng ; Tsai, Hsiu-Ju
Author_Institution :
Electr. Meas. Lab., Ind. Technol. Res. Inst., Hsinchu, Taiwan
Abstract :
Many electrical standard laboratories use μpots as the primary standards for low ac voltage measurement. To determine the ac-dc difference of a μpot usually requires a transfer standard which has high input impedance for the standard values transferred from a standard μpot through a step-down procedure. In order to lower the uncertainty of the μpot ac-dc difference measurement, after several step-down procedures at low voltage range, a precision comparison method is introduced
Keywords :
measurement standards; transfer standards; voltage measurement; μpots; AC-DC difference; comparison method; electrical standard laboratories; precision measurement; primary standards; step-down procedures; transfer standard; voltage measurement; Frequency; Impedance measurement; Laboratories; Low voltage; Measurement standards; Resistors; Testing; Uncertainty; Voltage control; Voltage measurement;
Conference_Titel :
Instrumentation and Measurement Technology Conference, 1999. IMTC/99. Proceedings of the 16th IEEE
Conference_Location :
Venice
Print_ISBN :
0-7803-5276-9
DOI :
10.1109/IMTC.1999.776137
