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Piezoelectric wave detection device and voltage-sensitive structure

A technology of pressure-sensitive structures and wave detection devices, which is applied in the direction of measuring devices, instruments, scientific instruments, etc., and can solve problems such as temperature changes, sensitivity to electromagnetic interference, and complex mechanical structures

Active Publication Date: 2016-04-13
BC P INC CHINA NAT PETROLEUM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Since the magnetoelectric detector is composed of more than ten precision parts such as magnetic steel, yoke iron, upper and lower coil frames, spring pieces and upper and lower contact pieces, and they are closely matched with each other, the mechanical structure of this kind is relatively complicated, and it is not sensitive to temperature. Sensitive to changes and EMI

Method used

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  • Piezoelectric wave detection device and voltage-sensitive structure
  • Piezoelectric wave detection device and voltage-sensitive structure
  • Piezoelectric wave detection device and voltage-sensitive structure

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Embodiment Construction

[0026] In order to make the purpose, technical solutions, and advantages of the embodiments of the present application clearer, the embodiments of the present application will be further described in detail below in conjunction with the embodiments and the accompanying drawings. Here, the schematic embodiments and descriptions of the embodiments of the present application are used to explain the embodiments of the present application, but are not intended to limit the embodiments of the present application.

[0027] The specific implementation manners of the embodiments of the present application will be further described in detail below in conjunction with the accompanying drawings.

[0028] refer to figure 1 As shown, the pressure-sensitive structure of the embodiment of the present application includes:

[0029] flat mass 2;

[0030] Two pieces of coupled piezoelectric sheets 1 used to sense the vibration of the flat mass 2 and convert it into a corresponding acceleration...

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Abstract

The invention discloses a piezoelectric wave detection device and a voltage-sensitive structure. The piezoelectric wave detection device comprises a housing which is internally provided with the voltage-sensitive structure; the voltage-sensitive structure comprises a flat mass block and at least two voltage sheets which are coupled, wherein the voltage sheets are used for sensing the vibration of the flat mass block and converting the vibration to corresponding acceleration voltage signals; the at least two coupled voltage sheets are fixedly installed on the flat mass block and are arranged in parallel with the flat mass block; and an amplification circuit is used for amplifying and outputting the acceleration signal. The piezoelectric wave detection device is simple in structure and stable in performance.

Description

technical field [0001] The embodiments of the present application relate to the technical field of seismic signal pickup in seismic exploration, and in particular to a piezoelectric detection device and a pressure-sensitive structure thereof. Background technique [0002] At present, large-scale seismic exploration uses magnetoelectric detectors to pick up seismic signals. Generally, the magnetoelectric detector is mainly composed of magnetic steel, coil, spring sheet and other components, and adopts the principle of coil cutting magnetic force line to pick up seismic wave signal, which belongs to a passive velocity detector. Since the magnetoelectric detector is composed of more than ten precision parts such as magnetic steel, yoke iron, upper and lower coil frames, spring pieces and upper and lower contact pieces, and they are closely matched with each other, the mechanical structure of this kind is relatively complicated, and it is not sensitive to temperature. Sensitive...

Claims

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Application Information

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IPC IPC(8): G01V1/18
CPCG01V1/181
Inventor 薛立武王萌陈永兵韩晓波邵欣王霞
Owner BC P INC CHINA NAT PETROLEUM CORP