| Title |
Development of an Input Impedance Evaluation of the AC-DC Transfer Standard for Low Level AC Voltage Standard |
| Authors |
권성원(Kwon, Sung-Won) ; 정재갑(Jung, Jae-Kap) ; 이상화(Lee, Sang-Hwa) ; 김문석(Kim, Myung-Soo) ; 김한준(Kim, Han-Jun) |
| Keywords |
Low level AC voltage ; Micro-potentiometer ; Input impedance ; Ac-dc transfer difference ; Loading effect |
| Abstract |
An AC-DC transfer standard(TS) is used for the AC voltage standard in the range of 2 mV to 1000 V below 1 MHz. Micro-potentiometer(μPot) is used to evaluate the ac-dc transfer difference(ADD) of the TS below 200 mV range. The ADD of the TS were changed by the loading effect caused from the input impedance change of the TS depend on frequency. An input impedance evaluation technique of the TS using μPot has been developed. |