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Marine controllable source electromagnetic signal simulation generator

A technology for simulating generators and electromagnetic signals, applied in electric/magnetic exploration, instruments, scientific instruments, etc., can solve the problems of storage depth, insufficient dynamic range time synchronization, etc., and achieve the effect of simple and reasonable structure

Pending Publication Date: 2022-04-01
CHINA UNIV OF GEOSCIENCES (BEIJING)
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

In summary, when faced with the test requirements of controllable source electromagnetic signals, the existing commercial signal generators have deficiencies in storage depth, dynamic range, and time synchronization.

Method used

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  • Marine controllable source electromagnetic signal simulation generator
  • Marine controllable source electromagnetic signal simulation generator
  • Marine controllable source electromagnetic signal simulation generator

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Embodiment Construction

[0035] The specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, but it should be understood that the protection scope of the present invention is not limited by the specific embodiments.

[0036] Unless expressly stated otherwise, throughout the specification and claims, the term "comprise" or variations thereof such as "includes" or "includes" and the like will be understood to include the stated elements or constituents, and not Other elements or other components are not excluded.

[0037] figure 1 It is a schematic diagram of a wireframe structure of a marine controllable source electromagnetic signal simulation generator according to an embodiment of the present invention. Such as figure 1As shown, a marine controllable source electromagnetic signal simulation generator according to a preferred embodiment of the present invention includes: a housing, a timing circuit 1 , a control circuit 2 , a cho...

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Abstract

The invention discloses an ocean controllable source electromagnetic signal simulation generator which comprises a shell, a time circuit, a control circuit, a chopper circuit, an amplifying circuit and a power supply circuit. The time circuit is arranged in the shell. The control circuit is arranged in the shell, and the control circuit is electrically connected with the time circuit. The chopper circuit is arranged in the shell, and the chopper circuit is electrically connected with the control circuit. The amplifying circuit is arranged in the shell, and the amplifying circuit is electrically connected with the chopper circuit. And the power supply circuit is arranged in the shell and is electrically connected with the time circuit, the control circuit, the chopper circuit and the amplifying circuit respectively. The time circuit is used for providing time synchronization information. Therefore, the marine controllable source electromagnetic signal simulation generator is simple and reasonable in structure, can output accurate timestamps, amplitude modulation, multi-frequency synthesis or single-frequency voltage waveforms, simulates marine controllable source electromagnetic signals, and provides a solution for indoor signal acquisition function test of a seabed electromagnetic receiver.

Description

technical field [0001] The invention relates to the technical field of marine geophysical instrument development, in particular to a marine controllable source electromagnetic signal simulation generator. Background technique [0002] Controlled-Source ElectroMagnetic (CSEM) belongs to the branch method of marine electromagnetism, which is oriented to application fields such as deep water oil and gas exploration, hydrate investigation, geological structure research and so on. The basis of its physical properties is that target reservoirs such as high-resistivity oil and gas or hydrates have a larger resistivity difference than surrounding low-resistivity sedimentary media. Its working principle is to use a ship-borne movable horizontal electric dipole source placed near the seabed to emit electromagnetic waves. The electromagnetic waves are refracted or reflected when propagating in the non-uniform seabed medium, and the electromagnetic receiver array placed on the seabed me...

Claims

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Application Information

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IPC IPC(8): G01V3/08
CPCY02A90/30
Inventor 陈凯巩奕轩
Owner CHINA UNIV OF GEOSCIENCES (BEIJING)
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