| 77K SQUID磁强计在TEM测量上的应用研究 |
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| 引用本文： | 王赤军,陈晓东,赵毅,王宝珍.77K SQUID磁强计在TEM测量上的应用研究[J].地球物理学报,1999,42(Z1):161-166. |
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| 作者姓名： | 王赤军 陈晓东 赵毅 王宝珍 |
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| 作者单位： | 国土资源部地球物理地球化学勘查研究所 河北廊坊 065000 |
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| 基金项目： | 国家超导中心资助的“863计划”专项攻关项目(863-CD050102) |
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| 摘 要： | 阐述了液氮温区（77K）超导量子干涉器（SQUID）磁强计在瞬变电磁（TEM）测量中的应用,介绍了作者以此进行的TEM测量野外应用试验及所取得的结果,直接测量磁场与测量感应电动势相比,用SQUID磁强计直接测量磁场,具有低噪声,高信噪比、高灵敏度的特点。它将给物探方法提供一个优异的弱磁探测工具。
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| 关 键 词： | 液氮温区 SQUID磁强计 低噪声 高信噪比 远偏移瞬变电磁法 |
| 收稿时间： | 1999-05-19 |
APPLICATION OF 77K SQUID MAGNETOMETER IN TEM |
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| WANG CHI-JUN CHEN XIAO-DONG ZHAO YI WANG BAO-ZHEN.APPLICATION OF 77K SQUID MAGNETOMETER IN TEM[J].Chinese Journal of Geophysics,1999,42(Z1):161-166. |
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| Authors: | WANG CHI-JUN CHEN XIAO-DONG ZHAO YI WANG BAO-ZHEN |
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| Institution: | Institute of Geophysical &; Geochemical Exploration. Lang fang 065000. China |
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| Abstract: | The application of magnetometer with 77k liquid nitrogen temprature range Supercoduct-ing Quantum Interference Device （SQUID） in Transience Electromagnetic Method （TEM） is expounded. The field experiments and the results are introduced. Comparing with conventional inductive voltage by inductive choke, directly measuring magnetic by SQUID sensor has more advantages: low noise, high signal-to-noise ratio and high sensitivity. It will provide an advatageous means to measure weak magnetic in geophysical exploration. |
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| Keywords: | Liquidnitrogentemperaturerange SQUIDMagnetometer LownoiseHighsignal-to-noiseratio TEM |
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