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Vibroseis and seismic source device based on seismic wave vector synthesis

A seismic source and equipment technology, applied in the field of geographic exploration, can solve problems such as complex structure, and achieve the effect of simple seismic source structure, strong stability, and stable reciprocating motion

Active Publication Date: 2017-03-15
JILIN UNIV
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Problems solved by technology

[0004] The structure of the electromagnetic vibrator is mainly a coil and a magnet. In the existing vibrator, the magnet is often fixed and the coil moves relative to the magnet, so that the electrical signal in the coil is converted into a mechanical vibration signal and the seismic wave is used. The form is introduced into the mechanism to be tested, and the above vibrators make the structure complex in the way of realizing the coil motion

Method used

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  • Vibroseis and seismic source device based on seismic wave vector synthesis
  • Vibroseis and seismic source device based on seismic wave vector synthesis
  • Vibroseis and seismic source device based on seismic wave vector synthesis

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Embodiment Construction

[0036] Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings. For the sake of clarity, various parts in the drawings have not been drawn to scale. Also, some well-known parts may not be shown. There are many specific details of the invention described below, but the invention may be practiced without these specific details, as will be understood by those skilled in the art.

[0037] It should be understood that when describing the structure of a component, when a layer or a region is referred to as being "on" or "over" another layer or another region, it may mean being directly on another layer or another region, or Other layers or regions are also included between it and another layer or another region. And, if the part is turned over, the layer, one region, will be "below" or "beneath" the other layer, another region.

[0038] The invention provides a vibrator, figure 1 , figure 2 It shows a perspective view of ...

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Abstract

The invention discloses vibroseis and a seismic source device based on seismic wave vector synthesis. The vibroseis comprises a first mounting board, a second mounting board, a first spring, a coil, a magnet, and a clump weight, wherein the first spring connects the first mounting board and the second mounting board to enable the second mounting board to perform a reciprocating motion in relative to the first mounting board; the coil is fixed with the first mounting board; one end of the magnet is fixed with the second mounting board, and the other end extends to the coil; and the clump weight is fixed with the second mounting board. The above seismic source device comprises the above vibroseis and an adjustable base. The vibroseis has the simple structure, and the purpose of using a non-destructive seismic source to replace an explosive seismic source in the case of seismic exploration can be realized. According to the seismic source device, through controlling the sizes of forces outputted by multiple vibroseis, vectors are synthesized and seismic waves are outputted, and the seismic source device has a directional detection excitation capability.

Description

technical field [0001] The invention relates to the field of geographic exploration, and more specifically, to a vibrator and a seismic source device based on seismic wave vector synthesis. Background technique [0002] Vibrator is the source of seismic signals in the existing geographical survey neighborhood, and there are various types, including explosive vibrator, hammer vibrator, tamping vibrator, hydraulic vibrator and electromagnetic vibrator, etc. [0003] Electromagnetic vibroseis is a non-explosive source used in both land and ocean seismic exploration. It can excite small-energy controllable vibration signals from the detection mechanism, and use pulse compression and other methods to achieve high power similar to explosive sources. Seismic wave excitation effect. Electromagnetic vibroseis has been widely used in seismic exploration due to its controllable waveform parameters, safety and environmental protection. [0004] The structure of the electromagnetic vib...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01V1/143G01V1/155
CPCG01V1/143G01V1/155
Inventor 邢雪峰陈玉达张冠宇佟训乾
Owner JILIN UNIV
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