自解耦多通道隧道超前瞬变电磁探测装置及工作方法

By employing a self-decoupled multi-channel tunnel advanced transient electromagnetic detection device with a Bucking compensation coil and a non-coplanar eccentric layout, the problem of traditional devices being unable to simultaneously detect both deep and shallow layers is solved. This enables the efficient acquisition of both deep geological information and shallow three-dimensional information, improving detection accuracy and signal-to-noise ratio.

CN122218827BActive Publication Date: 2026-07-17JILIN UNIVERSITY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
JILIN UNIVERSITY
Filing Date
2026-05-20
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Traditional transient electromagnetic devices struggle to simultaneously detect both deep and shallow geological information and lack the ability to finely characterize three-dimensional information. Existing technologies suffer from detection blind spots due to hardware saturation and a lack of integration capabilities for single devices.

Method used

The device employs a self-decoupled multi-channel tunnel advanced transient electromagnetic detection device. It achieves active self-decoupling in hardware through a Bucking compensation coil, combined with a 120° non-coplanar eccentric layout. It utilizes a multi-channel receiver to achieve signal calibration and cascading, acquiring deep geological information while also taking into account high-resolution three-dimensional information from shallow layers.

Benefits of technology

It enables the simultaneous detection of deep geological information and acquisition of high-resolution three-dimensional geological information from shallow layers, solving the problem of the inability to simultaneously detect both deep and shallow layers, and improving detection accuracy and signal-to-noise ratio.

✦ Generated by Eureka AI based on patent content.

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Abstract

本发明公开的自解耦多通道隧道超前瞬变电磁探测装置及工作方法，属于地球物理地质电磁勘探领域，装置包括发射线圈、Bucking补偿线圈、第一接收线圈、第二接收线圈、第三接收线圈和第四接收线圈；第一接收线圈、发射线圈及Bucking补偿线圈同轴且第一接收线圈位于二者之间；第二接收线圈、第三接收线圈和第四接收线圈分别呈偏心布置，三个偏心接收线圈分别位于与发射线圈所在平面具有不同预设垂直间距的三个水平面内且三者的中心点与发射线圈中心点的连线在水平投影面上两两互成120°夹角；本发明自解耦多通道隧道超前瞬变电磁探测装置工作方法使得在探测深层地质信息的同时，兼顾并实现对浅层高分辨率三维地质信息的有效获取。
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Citation Information

Patent Citations

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    CN117786329A

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    CN121741874A

  • Pull-type transient electromagnetic detection technology based on eccentric self-compensation and method thereof

    CN119828237A

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    CN120352937A