| 直升机频率域航空电磁系统在均匀半空间上方的电磁响应特征与探测深度 |
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| 引用本文：王卫平,王守坦.2003.直升机频率域航空电磁系统在均匀半空间上方的电磁响应特征与探测深度[J].地球学报,24(3):285-288. |
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| 基金项目:地质大调查项目“航空电磁测量系统预研究”(编号:20002010002076) |
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| 中文摘要:直升机频率域电磁系统的最大勘探深度究竟是多少，一直是有争议的问题。在实际工作中，通常认为其最大勘探深度为150m，但这些都是根据实际的勘查经验得出的，没有统一的标准。针对这一问题，根据均匀半空间模型，推导了不同装置的频率域电磁响应的理论公式，分析了不同装置的频率域电磁响应特征，探讨了电磁响应特征与穿透深度的关系，并给出了不同装置的频率域电磁系统的理论探测深度。 |
| 中文关键词:直升机频率域电磁系统 均匀半空间 电磁响应特征 探测深度 |
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| Electromagnetic Response Character of Helicopter Frequency Domain EM System above Uniform Half Space and Its Prospecting Depth |
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| Abstract:The maximum prospecting depth of the helicopter frequency domain EM system has been a problem of long controversy. It is usually considered that the maximum prospecting depth is 150 m in practical survey, but this value has been merely derived from the practical prospecting experience and cannot be regarded as a unanimously-adopted standard. Based on the uniformity half space model for this problem, the authors have worked out the theoretical formula for frequency domain electromagnetic responses of diffe- rent devices, analyzed the electromagnetic response character, discussed the relationship between the electromagnetic response character and the prospecting depth, and put forward the theoretical prospecting depth of the frequency domain EM system for different devices. |
| keywords:helicopter frequency domain EM system uniformity half space electromagnetic response character prospecting depth |
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