Water shooting pressure measurement sensor

A technology for measuring sensors and explosion pressure, applied in the field of sensors, can solve the problems of high price of 138A sensors, affecting the test results of pressure signals, affecting connection reliability, etc., so as to improve the ability of anti-electromagnetic interference and test reliability, avoid The effect of explosion shock wave action, improving the ability to resist destruction

Inactive Publication Date: 2011-04-27
XIAN MODERN CHEM RES INST
View PDF2 Cites 25 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the acoustic impedance of the two materials does not match, it will affect the test results of the pressure signal
At the same time, since the output cables of pressure sensors in water are relatively long, the cables will be impacted by their own weight, water or explos

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Water shooting pressure measurement sensor
  • Water shooting pressure measurement sensor
  • Water shooting pressure measurement sensor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0023] See attached Figure 1~3 , the underwater explosion pressure measurement sensor of the present invention mainly includes a piezoelectric crystal assembly 1 and an amplifying circuit 5, the piezoelectric crystal assembly 1 is connected to the amplifying circuit 5 through a connecting wire 2, and the amplifying circuit 5 is connected to a signal output cable 11.

[0024] The sensor mainly has two packages, which are packaged with non-fragile materials that do not affect the functions of each component; namely:

[0025] The piezoelectric crystal component 1 is covered by epoxy resin 1-3 and encapsulated inside the sound-transmitting silicone rubber 3, and the outer surface of the sound-transmitting silicone rubber 3 is coated with a graphite layer 4;

[0026] The advantages of this package of piezoelectric crystal components are: 1. The piezoelectric crystal component is packaged with sound-transmitting silicone rubber. When the explosive product hits the silicone rubber, ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a water shooting pressure measurement sensor. The sensor mainly comprises a piezocrystal assembly and an amplifying circuit, wherein the amplifying circuit is arranged in a shell; the piezocrystal assembly is connected with the amplifying circuit through a connecting lead; the amplifying circuit is connected with a signal output cable; the piezocrystal assembly is coated in sound-transparent silicone rubber by an epoxy resin; a graphite layer is coated on the external surface of the sound-transparent silicone rubber; the amplifying circuit is coated by an insulated tape and is packaged in the shell by elastic silicone rubber; one end of the shell is connected with a top cap; the output cable passes through the top cap to be connected with the amplifying circuit; and a screw for fixing the signal output cable is arranged on the shell. The sensor has a simple structure, cannot be easily shot and damaged by explosive products, and can be used for measuring water shooting pressure in a complex environment; and the output cable is reliably connected.

Description

technical field [0001] The invention belongs to the technical field of sensors, and relates to a pressure sensor for measuring explosion shock waves in water, which is mainly used for the measurement of explosion shock waves and bubble energy in complex water environment, and provides test sensors for the research of explosion phenomena in water. Background technique [0002] Explosion test in water has attracted more and more people's attention. To gain insight into the destructive effects of an underwater explosion, the measurement of the shock wave and bubble energy produced by the explosion is key. For sensors used to measure explosion pressure in water, especially piezoelectric pressure sensors with high impedance requirements, the signal is weak. If it is eroded by moisture, the impedance will drop, and the charge will leak quickly and introduce measurement errors. At present, most of the sensors used for underwater explosion pressure measurement use tourmaline crysta...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): G01L5/14G01L9/08
Inventor 殷俊兰苏健军陈君寿光裕李芝绒王胜强王辉姬建荣王国庆闫潇敏
Owner XIAN MODERN CHEM RES INST
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap