Method for measuring explosion shock wave field strength and special-purpose pressure tank thereof

An explosion shock wave, pressure tank technology, applied in the direction of measuring blasting force, etc., can solve the problems of easy damage, expensive sensors, complicated operation steps, etc., and achieve the effect of low cost and convenient operation

Inactive Publication Date: 2012-06-13
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the sensors used to measure the shock wave pressure are not only expensive, but the operation steps are cumbersome, and they are easily damaged in the explosion field

Method used

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  • Method for measuring explosion shock wave field strength and special-purpose pressure tank thereof
  • Method for measuring explosion shock wave field strength and special-purpose pressure tank thereof
  • Method for measuring explosion shock wave field strength and special-purpose pressure tank thereof

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Embodiment Construction

[0022] The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0023] The invention provides a method for measuring the strength of an explosion shock wave field and a special pressure tank. The pressure tank includes a diaphragm 1, a tank cover 2, a tank body 3, a cone 4 and a baffle 5, wherein the tank cover 2 is open and the upper end Convex, the diaphragm is made of aluminum with a thickness of 0.4~0.5mm, the tank body is made of stainless steel with a thickness of 1mm, the tank cover and the tank body are connected by threads and the diaphragm is placed on the lower end of the tank cover flange and the opening of the tank body Between the upper end surfaces, the cone is solid and is threadedly connected with the lower end of the tank body, and the blocking piece is fixedly connected on the outer surface of the cone.

[0024] The specific steps of the measurement method are:

[0025] The first step is to select t...

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Abstract

The invention provides a method for measuring the explosion shock wave field strength and a special-purpose pressure tank that is used for testing an explosion pressure field. Compared with a traditional pressure sensor measurement method, the provided measuring method is visual, is easy to operate and is more economical. According to a concrete technical scheme, the pressure tank is composed of a membrane, a tank cover and tank body. The tank cover is open and the upper end of the tank cover is provided with a flange. The membrane is a plastic material and is a direct action object at a pressure field; and the deflection of the membrane reflects a pressure level. The tank cover and the tank body are in threaded connection; and the membrane is clampedly placed between a lower end surface of the tank cover flange and an upper end surface of a tank body opening. According to the measuring method provided in the invention, changes of a volume inside the pressure tank before and after explosion as well as before and after deformation of the membrane are measured, so that a pressure filed of an explosion shock wave can be measured.

Description

technical field [0001] The invention relates to a method for measuring shock wave field strength (pressure, specific impulse) and a special device, in particular to a method for measuring explosion shock wave field strength and a special pressure tank. Background technique [0002] The currently existing damage criteria for shock waves include overpressure criterion, impulse criterion, and overpressure-impulse criterion. The overpressure-impulse criterion is currently recognized as the best evaluation method for FAE weapons. However, judging from the current domestic and foreign testing levels, there are still major deficiencies in the test of hedging force, while the overpressure test technology has tended to be perfected. The measurement of explosion shock wave field pressure generally adopts pressure sensor. However, the sensors used to measure the shock wave pressure are not only expensive, but the operation steps are cumbersome, and they are easily damaged in the explo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01L5/14
Inventor 李建平白春华王斌
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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