Journal of Sensor Science and Technology (센서학회지)
- Volume 7 Issue 6
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- Pages.401-408
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- 1998
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- 1225-5475(pISSN)
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- 2093-7563(eISSN)
An Automatic AC-DC Transfer Error Measurement System
교류-직류 변환오차 자동 측정시스템
- Kwon, Sung-Won (Korea Research Institute of Standards and Science) ;
- Cho, Y.M. (Korea Research Institute of Standards and Science) ;
- Kim, K.T. (Korea Research Institute of Standards and Science) ;
- Kang, J.H. (Korea Research Institute of Standards and Science) ;
- Park, Y.T. (Korea Research Institute of Standards and Science)
- Published : 1998.11.30
Abstract
A dual-channel automatic ac-dc voltage transfer error measurement system in which the output voltages of two thermal voltage converters which are ac voltage standard are directly measured at the same time to reduce the output voltage drift is described. Forward-reverse measurement method by using a two-channel scanner is used to cancel the offset voltage of the voltmeters. The agreements of the 4-V TVC comparison results between other national standards institute and Korea Research Institute of Standards and Science were less than about
교류전압표준기인 열전형 전압변환기의 교류-직류 변환오차를 비교평가하기 위하여 이중채널방식 자동측정시스템을 개발하였다. 비교측정되는 2대의 변환기출력을 동시에 측정하여 드리프트의 영향을 감소시켰고, 또 저열기전력 이중채널 스캐너를 사용하여 변환기 출력을 순방향-역방향으로 측정하여 그 평균값을 취함으로서 전압측정기의 ���V전압이 제거되도록 하였다. 정격전압이 동일한 4 V인 변환기끼리 비교 측정한 결과, 주파수
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