| 多探头涡流检测系统的设计与实现 |
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| 引用本文： | 沈跃,刘金世,储浚,任兰亭.多探头涡流检测系统的设计与实现[J].中国石油大学学报(自然科学版),1998(3). |
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| 作者姓名： | 沈跃 刘金世 储浚 任兰亭 |
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| 作者单位： | 石油大学应用物理系 |
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| 摘 要： | 介绍了一种共享式多探头涡流检测系统。利用涡流探伤仪的一个励磁信号源同时长距离驱动多个检测探头，与励磁信号源对应的信号处理通道对多路检测信号进行巡回处理，可大大提高系统效率，减少系统结构的复杂性。该系统的检测灵敏度、信噪比和探头间隔离度均满足实际检测需要，可作为标准涡流检测系统的通道扩展接口使用。实际应用于抽油杆的无损探伤，效果较好
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| 关 键 词： | 电桥 阻抗 平衡 涡流 |
/ DESIGN AND APPLICATION OF MEASURING SYSTEM OF MULTI PROBE EDDY CURRENT |
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| Shen Yue./ DESIGN AND APPLICATION OF MEASURING SYSTEM OF MULTI PROBE EDDY CURRENT[J].Journal of China University of Petroleum,1998(3). |
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| Authors: | Shen Yue |
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| Institution: | Dongying: 257062 |
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| Abstract: | This paper introduces a measuring system for multi probe eddy current of working on share. An exciting voltage source is provided in the measuring system to drive several eddy probes for a long distance, and a cycling signal processing is applied on the probes. The system can be taken as a channel for expanding interface of measuring instrument with the standard eddy current. The testing sensitivity, signal/noise ratio of the system and insulation between the probes are available for practical application. |
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| Keywords: | bridge impedance balance eddy current |
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