Journal of the Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회논문지)

The Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회)
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A Clamp Type Sensor for AC/DC Low Current Measurement

클램프 형 직교류 저 전류 측정 센서

  • 박영태 (한국표준과학연구원 전자기표준부 전자자기그룹) ;
  • 유광민 (한국표준과학원구원 전자기표준부 전기자기그룹)
  • Published : 2002.12.01
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Abstract

This paper describes characteristics of the developed current sensor by means of two identically wound magnetic cores forming a clamp like for measurement of a low DC, or AC current. This sensor consists of peak value detectors, a sensor of an electrically compensated current transformer type, a reference alternating voltage, Precision measuring circuits to measure the output signals of sensor with harmonics, and can be measured up to 2 A at DC, or AC current. The current sensor shows a measurement accuracy of less than 0.3% in the frequency range 40 Hz - 10 HBz. The resolution and sensitivity of the sensor were evaluated 0.1 mA and 10 mV/mA, respectively.

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References

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