Explosion center positioning device

Abstract

The invention discloses an explosion center positioning device and solves the problem that the position of an explosion center cannot be determined under the dynamic explosion test condition in the prior art. The explosion center positioning device is formed by a test base, a direction regulator and pressure-sensitive elements. Through the explosion center positioning device, azimuth angle of theexplosion center can be calculated by measuring arrival time of shock wave; through the explosion center positioning device, explosion center azimuth angles at two different places can be measured, and the position of the explosion center can be calculated; the explosion center positioning device needs to be buried in the test site when carrying out explosion center azimuth angle and explosion center position measurement, thereby not influencing test of other explosion parameters; the device cost is low, and since the device needs to be buried into the site field when used, probability of being damaged by explosion fragments is low; the test principle is based on an electrical measuring method, and thus the device is not influenced by environment light intensity factors; and the method canbe used for measuring the angle of explosion center in any direction, and can be used for calculating the position of the explosion center.

Description

technical field [0001] The invention relates to a burst center positioning device, which belongs to the technical field of explosion and impact testing. Background technique [0002] In order to truly reflect the damage effect of the warhead on the target in the actual combat state, dynamic explosion tests have been increasingly used to evaluate the damage capability of the warhead in recent years. Compared with the static explosion test, the dynamic explosion test, because the detonation center position is not fixed, will affect the construction of the sample explosion power field and the evaluation of the sample's ability to damage the target. Therefore, the dynamic explosion test first needs to determine the detonation center position of the sample. [0003] At present, there is no special test device for determining the center of explosion in dynamic explosion tests, and high-speed photography of the explosion process is usually used to estimate the explosion center of t...

AI Technical Summary

Problems solved by technology

There are following problems in the method of using high-speed camera to determine the center of explosion: 1. The positioning scale will interfere with the explosion field and affect the normal test of other explosion parameters; 2. The high-speed camera is expensive, and the test process may be damaged by fragments produced by the explosion. The maintenance cost is high; 3. The sampling frequency of the high-speed camera is heavily affected by the intensity of the ambient light. When the light is insufficient, the sampling frequency needs to be reduced to shoot, and it may not be possible to accurately capture photos that can effectively interpret the location of the explosion center; 4. Use a high-speed camera to measure the explosion The center can only measure the detonation center position of the explosion process within the field of view of the camera, and the range of measurable angles is limited

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