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Transient electromagnetic receiver

A transient electromagnetic and receiver technology, applied in the field of receivers, can solve problems such as complex synchronization methods and poor stability, and achieve the effects of simple structure, high precision, and simplified synchronization circuits

Active Publication Date: 2017-06-16
SHANGHAI INST OF MICROSYSTEM & INFORMATION TECH CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a transient electromagnetic receiver, which is used to solve the problems of too complicated synchronization and poor stability in the transient electromagnetic receiver in the prior art

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Embodiment Construction

[0021] The implementation of the present invention will be illustrated by specific specific examples below, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0022] see Figure 1 to Figure 3 . It should be noted that the structures, proportions, sizes, etc. shown in the drawings attached to this specification are only used to match the content disclosed in the specification, for those who are familiar with this technology to understand and read, and are not used to limit the implementation of the present invention. Limiting conditions, so there is no technical substantive meaning, any modification of structure, change of proportional relationship or adjustment of size, without affecting the effect and purpose of the present invention, should still fall within the scope of the present invention. The disclosed technical content must be within the scope covered.

[0023] ...

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Abstract

The present invention provides a transient electromagnetic receiver, comprising: a superconducting quantum interferometer sensor; a synchronous signal processing unit connected to the superconducting quantum interferometer sensor, used for outputting from the superconducting quantum interferometer sensor Extracting a synchronous signal from the sensing signal; a data acquisition unit connected to the superconducting quantum interference sensor and the synchronous signal processing unit, configured to collect the sensing signal output by the superconducting quantum interference sensor based on the synchronizing signal. The invention does not need to establish a synchronous clock matched with the transmitter, and can determine the synchronous signal by inducting the transient magnetic signal emitted by the transmitter, and has the advantages of simple structure and high precision.

Description

technical field [0001] The present invention relates to a receiver, in particular to a transient electromagnetic receiver. Background technique [0002] The transient electromagnetic method (Transient Electromagnetic Methods, TEM) is a method that uses an ungrounded loop to generate a pulsed magnetic field underground, and uses coils or other magnetic sensors to observe the secondary eddy current field during the intermittent period of the pulsed magnetic field. The geoelectric characteristics at different depths can be obtained by measuring the law of the secondary field changing with time in various time periods after the transmission is turned off. [0003] A positive and negative alternating square wave pulse current is generally applied to the transmitting coil to generate a transient electromagnetic field. At the receiver side, the receiver receives the ground-attenuated secondary field signal. During the implementation process, the received secondary field signals w...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01V3/10
Inventor 常凯荣亮亮汪瀛孔祥燕谢晓明
Owner SHANGHAI INST OF MICROSYSTEM & INFORMATION TECH CHINESE ACAD OF SCI