電磁鋼板の磁気特性評価のための簡便な構成のディジタル測定システム

概要

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A practical magnetic measurement system for use in the research of Goss-oriented silicon-iron sheet, which is built compactly based on the interconnection of digitizing oscilloscope with personal computer, is presented. In this system, it was intended to expand the frequency range of power loss measurement down to 10Hz keeping a good accuracy for the purpose of separating the hysteresis loss and eddy current loss, because this is necessary in researching low core loss materials. The point especially paid attention to for this purpose was the phase and amplitude errors of the integrating circuit which is used both for B-coil and H-coil outputs. It was shown that required measuring accuracy can be kept in the frequency range 10-500Hz by adopting a suitable integrating circuit and by optimizing the circuit parameters.
福岡工業大学の論文
2006-09-30