Title :
Loading effect of the AC-DC transfer standard for low level AC voltage standard
Author :
Kwon, Sung-Won ; Mun-Seog Kim ; Kim, Mun-Seog ; Jung, J.K.
Author_Institution :
Korea Res. Inst. of Stand. & Sci., Daejeon, South Korea
Abstract :
AC-DC transfer standard and micro-potentiometer are widely used for AC voltage standard at low level. Input impedance and 50-Ω load dependency of the standard are discussed for the ac voltage application below 200 mV and 1 MHz. The load dependency of the unit reaches 385 μV/V at 1 MHz, and this loading error should be corrected when calibrate the 50-Ω AC source using the standard.
Keywords :
calibration; electric impedance measurement; measurement standards; potentiometers; AC-DC transfer standard; calibration; frequency 1 MHz; input impedance; load dependency; low level AC voltage standard; micropotentiometer; resistance 50 ohm; Calibration; Capacitance; Electrical resistance measurement; Electromagnetic measurements; Frequency measurement; Impedance measurement; Low voltage; Measurement standards; Resistors; Thermal resistance;
Conference_Titel :
Precision Electromagnetic Measurements (CPEM), 2010 Conference on
Conference_Location :
Daejeon
Print_ISBN :
978-1-4244-6795-2
DOI :
10.1109/CPEM.2010.5543547
