脉冲瞬变场法分辨导电磁性体的一个技巧和实例

• 作 者: 蒋邦远
• 出 处: 物探与化探
• 发表日期: 1980年02期
• 关键词: 瞬变场法 磁性体 电磁法 磁异常 低频电 频率域 频段 综合参数 高频段 归一化

一、问题的提出频率域电磁法的异常和综合参数有图1所表示的关系。这个关系简单地说，即对一个给定的μ/μ_0＞1的探测体来说，在低频段，磁性响应大于电性响应，而高频段的情况正相反。所以，实分量曲线在低频段与高频段符号相反。这就是用低频电磁法分辨磁异常的理论基础。

First, the issue of the proposed frequency domain electromagnetic anomalies and integrated parameters shown in Figure 1 the relationship. This relationship simply states that for a given μ / μ0> 1 detector, the magnetic response is greater than the electrical response in the low frequency range, whereas the high frequency range is the opposite. Therefore, the real component curve is opposite to the sign of the high frequency band in the low frequency band. This is the theoretical basis for the resolution of magnetic anomalies by low frequency electromagnetic methods.