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http://dx.doi.org/10.4283/JKMS.2004.14.4.138

DC Current Transducer Using Saturable Magnetic Cores  

Park, Young-Tae (한국표준과학연구원, 전자기표준부)
Jung, Jae-Kap (한국표준과학연구원, 전자기표준)
Gang, Jeon-Hong (한국표준과학연구원, 전자기표준)
Ryu, Kwon-Sang (한국표준과학연구원, 전자기표준)
Yu, Kwang-Min (한국표준과학연구원, 전자기표준부)
Publication Information
Journal of the Korean Magnetics Society / v.14, no.4, 2004 , pp. 138-142 More about this Journal
Abstract
Uncertainty and characteristics of the developed current sensor by means of two identically wound magnetic cores forming a ring like for measurement of a low DC current such as leakage current was described in this paper. This transducer consists of a sensor type of a current transformer, peak value detectors, a reference alternating low frequency voltage oscillator, precision measuring circuits to measure the output signals of sensor with harmonics, and can be measured up to 2 A at DC current. The resolution and sensitivity of the sensor were 0.1㎃ and 10㎷/㎃, respectively.
Keywords
peak value detector; a current transformer; reference alternating low frequency voltage oscillator; harmonics; resoltion; sensitivity;
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