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Vibration and impact pulse composite sensor

A composite sensor and shock pulse technology, applied in the field of sensors, can solve the problems of difficult detection and recognition, low strength, etc., and achieve the effects of saving space, improving utilization efficiency, and improving functions

Pending Publication Date: 2021-03-23
中嵌科技(北京)有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention is to solve the technical problem that the vibration acceleration signal obtained by the piezoelectric sensor of the shock pulse signal of the industrial equipment in the prior art is often weak in intensity and submerged in the ordinary vibration signal and is difficult to detect and identify, and provides a combination of vibration and shock pulse Sensors capable of simultaneously detecting vibration signals and shock pulse signals of industrial machinery and equipment

Method used

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  • Vibration and impact pulse composite sensor

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Experimental program
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Effect test

Embodiment 1

[0030] Such as figure 1 As shown, a vibration and shock pulse composite sensor includes a metal shell 1, a bolt 2 that is rigidly connected to the shell 1 at one end of the shell 1, and a rigid connection between the bolt 2 and the detection device, and is set on the shell 1 The plug 3 at the other end, the insulating support 4 arranged inside the shell 1, the piezoelectric ceramic 5 fixed on the insulating support 4, one end is fixedly connected with the piezoelectric ceramic 5 and the resonant mass block 6 of hollow structural metal material is arranged on the resonant mass The circuit board support 7 at the other end of the block 6, the filter circuit board 8 arranged on the circuit board support 7, the circuit board support 7 is a rigid body support, and two wires are embedded in the center of the circuit board support 7, and the wires are connected to the filter circuit board 8 , the filter circuit board 8 includes a low-noise charge amplification circuit, a sealing body ...

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PUM

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Abstract

The invention discloses a vibration and impact pulse composite sensor comprising a shell (1), a bolt (2) arranged at one end of the shell (1), a plug (3) arranged at the other end of the shell (1), aninsulating bracket (4) arranged in the shell (1), piezoelectric ceramic (5) fixed on the insulating bracket (4), and a resonance mass block (6) with one end fixedly connected with the piezoelectric ceramic (5), a circuit board support (7) arranged at the other end of the resonance mass block (6), a filtering circuit board (8) arranged on the circuit board support (7), a sealing body (9) connectedwith the filtering circuit board (8), and a metal closed shell shielding cover (10) arranged on the periphery of the piezoelectric ceramic (5), the resonance mass block (6), the circuit board support(7) and the filtering circuit board (8). The vibration and impact pulse composite sensor provided by the invention can detect vibration signals and impact pulse signals of industrial mechanical equipment at the same time.

Description

technical field [0001] The invention relates to the technical field of sensors, in particular to a vibration and shock pulse composite sensor capable of simultaneously detecting vibration signals and shock pulse signals. Background technique [0002] The vibration monitoring of traditional industrial equipment is obtained through vibration acceleration piezoelectric ceramic sensors, while the vibration acceleration signals obtained by piezoelectric sensors for shock pulse signals of industrial equipment are often less intense and submerged in ordinary vibration signals, which are difficult to detect and identify. [0003] The application number is 200810200735.3, which discloses a generalized resonant composite sensor for detecting vibration and shock, which includes a shell, vibration and shock piezoelectric sensitive components, an electronic conditioner, an output cable, a normalization circuit, and a transmission bolt. The feature is: the connecting bolt passes through th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01H11/08
CPCG01H11/08
Inventor 李振张中祥
Owner 中嵌科技(北京)有限公司
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