Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Transient electromagnetic exploration device and method based on eccentric coil compensation

A transient electromagnetic, eccentric coil technology, applied in the field of geophysical exploration equipment, can solve problems such as large primary field interference, and achieve the effects of eliminating coupling effects, realizing weak coupling, and gentle changes in magnetic field strength.

Active Publication Date: 2020-04-10
JILIN UNIV
View PDF7 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a transient electromagnetic exploration device and exploration method based on eccentric coil compensation to solve the problem of excessive primary field interference

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Transient electromagnetic exploration device and method based on eccentric coil compensation
  • Transient electromagnetic exploration device and method based on eccentric coil compensation
  • Transient electromagnetic exploration device and method based on eccentric coil compensation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0031] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0032] Such as figure 1 As shown, a transient electromagnetic exploration device based on eccentric coil compensation adopts a double-platform structure. The trailer platform A and the height-adjustable high platform B are placed in parallel; the system includes a transmitter, a receiver, a transmitter Coils, receiving coils and magnetic compensation rings; among them, the transmitting coil is laid on the trailer platform, the receiving coil and the magnetic compensation ring are laid on the high platform plane, and the receiving coil is laid across the transmitting line; the receiving coil is laid eccentrically across the ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to the field of geophysical exploration equipment, in particular to a transient electromagnetic exploration device and method based on eccentric coil compensation. The device comprises: a dragging vehicle platform and a height-adjustable high platform. The dragging vehicle platform and the high platform are arranged in parallel; a transmitting coil is laid on the dragging vehicle platform, a receiving coil and a magnetic compensation ring are laid on the plane of the high platform, the receiving coil is eccentrically laid across the transmitting coil, the initial positionof the magnetic compensation ring is located on the high platform and is concentric with the transmitting coil, and the position of the magnetic compensation ring is movably adjusted according to thecondition that a received signal is smaller than a threshold value. According to the invention, a double-platform structure is adopted, the receiving coil is laid at the high platform above the dragging platform, the change degree of the magnetic field intensity of the plane of the high platform is relatively gentle, the weak coupling of the transmitting coil and the receiving coil is realized, and the influence of the physical error of the structure is minimized in the subsequent adjustment process.

Description

technical field [0001] The invention relates to the field of geophysical prospecting equipment, in particular to a transient electromagnetic prospecting device and a prospecting method based on eccentric coil compensation. Background technique [0002] Transient electromagnetic method (Time domain electromagnetic methods, TEM) is a geophysical prospecting method based on Lenz’s law. Due to its sensitivity to low-resistivity bodies, it has become an important method to solve problems such as geological structure detection and geological resource exploration. . The coupling effect of the ground TEM transmission to the receiving coil makes the signal acquired by the receiving system not only include the effective early signal of the secondary field, but also include the useless primary field interference signal. Since the early signal of TEM carries shallow geological information, if the primary field signal is too strong during the off time, the shallow geological information...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G01V3/10
CPCG01V3/107
Inventor 张洋贾文枫殷光耀皮帅林君
Owner JILIN UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com