Detector core

A geophone and movement technology, applied in instruments, scientific instruments, seismic signal receivers, etc., can solve the problem of easy reverse connection of terminal terminals, and achieve the effect of preventing wrong polarity connection

Inactive Publication Date: 2019-04-09
WEIHAI SUNFULL GEOPHYSICAL EXPLORATION EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims to solve the technical problem that the polarities of the two terminals of the existing geophone core are easily reversed, and provides a geophone with a relatively simple structure, more flexible and convenient testing or assembly, and avoiding polarity reversal. core

Method used

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Embodiment Construction

[0023] Referring to the accompanying drawings, the present invention will be further described in detail with specific embodiments.

[0024] like figure 2 As shown, the geophone core is a cylindrical structure, including a shell system, a magnetic system and an elastic mass system. The shell system includes a top cover 8 and a shell 1. The top cover 8 is connected to the upper end of the shell 1. An o-shaped sealing ring 14 is arranged between the top cover 8 and the shell 1 to form a closed space together. External threads 15 are processed on the top of the side of the housing 1 near the terminal. The material of the shell 1 is metal. Top cover 8 is non-metallic material.

[0025] The magnetic system includes a magnetic steel 5 , an upper yoke 6 and a lower yoke 3 , the upper yoke 6 is connected to the upper part of the magnetic steel 5 , and the lower yoke 3 is connected to the lower part of the magnetic steel 5 . The inner plane of the top cover 8 is close to one surfa...

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PUM

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Abstract

The invention relates to a detector core. Through the detector core, the technical problem that the polarities of two terminals of an existing detector core are prone to be connected reversely is solved. The detector core comprises a top cover, a shell, magnetic steel, an upper yoke, a lower yoke, a coil former, an upper leaf spring and a lower leaf spring, wherein the top cover is connected withthe shell, the upper yoke is connected with the magnetic steel, the lower yoke is connected with the magnetic steel, the coil former is arranged in the shell, a coil is connected onto the coil former,the magnetic steel is sleeved with the coil former, the upper leaf spring is connected with the upper yoke, and the lower leaf spring is connected with the lower yoke; the upper end of the coil former is connected with the upper leaf spring, and the lower end of the coil former is connected with the lower leaf spring; one electric lead of the coil is connected with the upper leaf spring, and theother electric lead of the coil is connected with the lower leaf spring; and the detector core also comprises a middle terminal and an edge terminal, wherein the middle terminal is connected with theupper yoke and penetrates through the top cover, and the edge terminal is connected with the upper leaf spring and penetrates through the top cover. The detector core can be applied to the technical field of detectors.

Description

technical field [0001] The invention relates to a wave detector core, in particular to a wave detector core which is easy to distinguish the polarity of terminals and can be mounted quickly through threads. Background technique [0002] No matter how the seismic exploration technology develops, as the front-end acquisition component in the seismic exploration system, the geophone core is always needed and paid attention to first. In the prior art, the core of the geophone is mainly composed of a shell system, a magnetic system and an elastic mass system. The magnetic system enclosed in the shell system provides a relatively uniform and closed magnetic field for the coil in the elastic mass system. When the detector core receives a vibration signal, the shell system part will vibrate accordingly, due to the inertia of the coil There is a relative displacement with the shell system. According to the principle of electromagnetic induction, the coil cuts the magnetic field line...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01V1/18
CPCG01V1/181
Inventor 申恒广杨德宽刘远章颜永安
Owner WEIHAI SUNFULL GEOPHYSICAL EXPLORATION EQUIP
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