An ac and dc current sensor of high accuracy
- Dept. of Electrical Engineering, Kyushu Inst. of Tech., Kita Kyushu (Japan)
- Electronic Control Engineering Dept., Hiroshimna National College of Maritime Technology, Hiroshimna (Japan)
This paper presents a current sensor that can detect ac and dc currents with high accuracy of the same degree. The detection characteristics are not degraded even when the sensor is exposed to large temperature variations and/or to external magnetic fields. The proposed sensor, which is named for the sensing principle it employs, will be referred to as the magnetic field controlled type or the zero magnetic field type of field and has the ability to fulfill the following specifications: The sensor is a noncontacting type; the operating frequency range covers form dc to several hundred hertz; the dynamic range can be extended from several milliamps to 100 A; a detection accuracy of 0.01% full scale (FS) is guaranteed over the sensor's whole range; several sets of current sensor having the same detection characteristics are easily obtainable even if the B-H loop of the core to be used for each sensor is very different.
- OSTI ID:
- 6933158
- Journal Information:
- IEEE Transactions on Industry Applications (Institute of Electrical and Electronics Engineers); (United States), Journal Name: IEEE Transactions on Industry Applications (Institute of Electrical and Electronics Engineers); (United States) Vol. 28:5; ISSN 0093-9994; ISSN ITIACR
- Country of Publication:
- United States
- Language:
- English
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