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Multistage laser method for testing explosive accelerated speed and speed

An acceleration and laser method technology, applied in the field of multi-segment laser method, can solve problems such as pollution, waste of resources, and the influence of the uniformity of explosive distribution in the detonator on the accuracy of experimental testing, etc.

Pending Publication Date: 2018-09-11
ANHUI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, three detonators are used in each test, resulting in waste of resources and pollution. At the same time, the uniformity of explosive distribution in the detonator has a great impact on the accuracy of the experimental test.

Method used

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  • Multistage laser method for testing explosive accelerated speed and speed

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Embodiment 1: a kind of multi-segment laser method of measuring the explosion acceleration and velocity of emulsion explosives, the specific operation steps are as follows:

[0035] Step 1: Prepare the emulsion explosive sample to be tested and the detonator detonator, put the emulsion explosive sample into the roll to form, and insert one end of the detonator detonator into one end of the roll of the emulsion explosive to be tested.

[0036] Step 2: Select the appropriate number of laser heads, equidistantly distribute them at a certain safe distance from the emulsion explosive sample, mark and determine each laser point outside the emulsion explosive sample roll, and the first laser head is aligned The bottom position of the detonator is inserted into the explosive sample, and the last laser head is aimed at the bottom position of the explosive column of the explosive sample to ensure that the laser emitted by each laser head hits the corresponding position, and the de...

Embodiment 2

[0039] Embodiment 2: A kind of multi-segment laser method of measuring the explosion acceleration and velocity of water-gel explosives, the specific operation steps are as follows:

[0040] Step 1: Step 1: Prepare the water-gel explosive sample to be tested and the detonator detonator, put the water-gel explosive sample into the roll to form, and insert one end of the detonator detonator into one end of the water-gel explosive roll to be tested.

[0041] Step 2: Select the appropriate number of laser heads, and equidistantly distribute them at a certain safe distance from the water gel explosive sample. Mark and determine each laser point on the outside of the water gel explosive sample roll. The first laser head is The bottom position of the detonator is inserted into the quasi-explosive sample, and the last laser head is aimed at the bottom position of the explosive column of the explosive sample to ensure that the laser emitted by each laser head hits the corresponding posit...

Embodiment 3

[0044] Embodiment 3: A kind of multi-segment laser method of measuring explosion acceleration and velocity of hydrogen storage type emulsion explosive, the specific operation steps are as follows:

[0045] Step 1: Prepare the hydrogen storage type emulsion explosive sample and nonel detonator to be tested, put the hydrogen storage type emulsion explosive sample into the charge coil and form it, insert one end of the detonator detonator into the hydrogen storage type emulsion explosive charge roll one end.

[0046] Step 2: Select the appropriate number of laser heads, and equidistantly distribute them at a certain safe distance from the explosive sample to be tested. Mark and determine each laser point on the outside of the hydrogen storage emulsion explosive test volume. The first laser head Align the bottom position where the detonator is inserted into the explosive sample, and the last laser head is aligned with the bottom end position of the explosive column of the explosiv...

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Abstract

The present invention relates to a multistage laser method for testing explosive accelerated speed and speed. A test device comprises a detonator, an explosive sample, laser heads, a laser sensitivityinstrument and a data collection processing system. The detonator can explore the explosive sample, and the explosive sample is slurry explosive; the number of the laser heads can be changed in a man-made mode and according to the practical test demands; the laser sensitivity instrument comprises a laser generator and an attenuation piece which can allow laser energy to be uniformly weakened intoa safety range and can allow the laser to be acted on the explosive sample to be tested in an equal distance through a spectroscope and the laser heads; the data collection processing system mainly comprises a storage oscilloscope and a computer, and is configured to calculate data such as detonation time of each equal-distance interval according to the laser change which is subjected to feedbackby the laser sensitivity instrument, the storage oscilloscope displays waveforms of an instantaneous speed and time, and the computer obtains the accelerated speed and the speed of the explosive sample according to data and formulas.

Description

technical field [0001] The invention relates to the field of testing explosive detonation parameters, in particular to a multi-segment laser method for measuring explosive explosion acceleration and velocity. Background technique [0002] Explosive detonation velocity refers to the propagation speed of detonation wave in explosives, which is an important parameter of explosives. A large number of studies have shown that the detonation process is a process in which the detonation wave propagates along the layer of the explosive, and the detonation velocity can provide an important basis for the study of the detonation mechanism, the state equation of the detonation product, and the quality of the explosive product. At present, there are many methods for testing the detonation velocity of explosives, such as the time measuring instrument method, the detonating cord method, the continuous oscillographic method, the high-speed photography method and the optical fiber method. Wh...

Claims

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Application Information

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IPC IPC(8): G01P3/68
CPCG01P3/685
Inventor 方华刘文近张成朱帅
Owner ANHUI UNIV OF SCI & TECH