| 录井钢丝直径的恒磁测量原理 |
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| 引用本文： | 康宜华,武新军,杨叔子.录井钢丝直径的恒磁测量原理[J].华中科技大学学报(自然科学版),1996(11). |
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| 作者姓名： | 康宜华 武新军 杨叔子 |
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| 摘 要： | 介绍录井钢丝直径的恒磁测量原理，包括沿钢丝径向和轴向的磁阻测量方法、沿钢丝轴向的主磁通测量方法，它们均可应用于表面受油泥或其他非导磁材料覆盖钢丝的在线连续测量
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| 关 键 词： | 故障诊断 录井钢丝 磁性检测 磁阻 主磁通 |
The Principles of Logging Wire Diameter Measurement by the Constant Magnetic Flux Method |
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| Abstract: | The principles of logging wire diameter measurement by the constant flux method are described. Two approaches are available. One is by measuring the magnetic reluctance of the gap between the wire and the pole shoe in the radial or longitudinal magnetic circuit along the wire, and the other is by measuring the main magnetic flux of the total magnetic flux through the wire in the longitudinal magnetic circuit. The accuracy of wire diameter measurement is 0.5% by the first method and that of wire cross sectional area measurement is 1% by the second one. Both methods can be used in on line continuous measurement of wire diameter covered with drilling mud or other non magnetic matter. |
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| Keywords: | fault diagnosis logging wire magnetic testing magnetic reluctance main magnetic flux |
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