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Method for reducing laser detonation energy

A laser and energy technology, used in blasting tubes, weapon accessories, offensive equipment, etc., can solve the problems of low conversion efficiency of flyer targets, restricting the engineering application of laser-driven flyer initiation technology, etc., to improve safety and reliability. Effect

Active Publication Date: 2019-04-16
INST OF CHEM MATERIAL CHINA ACADEMY OF ENG PHYSICS
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Problems solved by technology

The development of this technology has achieved many research results so far. However, the energy conversion efficiency of the flyer target (the efficiency of converting laser energy into the kinetic energy of the flyer) is still very low, resulting in the detonation threshold of the insensitive explosive being much higher than the upper limit of the energy transfer of the optical fiber. Greatly restricts the engineering application of laser-driven flyer detonation technology in weapon systems

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  • Method for reducing laser detonation energy
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Embodiment

[0023] A method for reducing the energy of laser detonation, based on a low-energy laser detonator, mainly transmits the laser light to the ignition powder 4 through the optical fiber 2 and ignites the ignition powder 4, and utilizes the combustion-to-detonation design, and the ignition powder 4 ignites the initiation powder 5. The starting charge 5 undergoes a combustion-to-detonation process to realize the detonation output of the starting charge 5, and then drives the metal flyer 6 through the detonation of the starting charge 5, so that the metal flyer 6 collides at a high speed and detonates the insensitive explosive 8 , and then realize the low-energy detonation of the insensitive explosive 8.

[0024] Specifically, such as figure 1 Shown is the specific structure of the low-energy laser detonator. The low-energy laser detonator includes a housing 1, an optical fiber 2, a self-focusing optical mirror 3, an accelerating chamber 7, a metal flyer 6, a charge ring 9 and a co...

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Abstract

The invention discloses a method for reducing laser detonation energy. The method is realized based on a low-energy laser detonator, laser is transmitted to ignition powder through an optical fiber, and the ignition powder is ignited; combustion to detonation design is utilized, initiating explosive is ignited by the ignition powder, the initiating explosive generates a combustion rotary detonation process, and the detonation output of the initiating explosive is realized; then metal flying sheet is driven through the initiating explosive detonation, so that the metal flying sheet hits at highspeed and detonates insensitive explosive, thereby achieving the low energy detonation of the insensitive explosive. According to the method for reducing laser detonation energy, full-fiber transmission can be realized in the whole detonation process, and the safety and reliability of weapons can be greatly improved.

Description

technical field [0001] The invention relates to the technical field of pyrotechnics, in particular to a method for reducing laser detonation energy. Background technique [0002] The application of laser-driven flyer detonation technology to the design of pyrotechnics can significantly improve the safety of weapon systems. The principle of laser-driven flyer detonation technology is: a high-energy short-pulse laser (usually with a wavelength of 1064nm) ablates the flyer target to quickly generate high-temperature and high-pressure plasma, and the non-ablated flyer target forms a high-speed flyer driven by the plasma, impacts and Detonate insensitive explosives. The flyer target converts the laser energy into the kinetic energy of the flyer, which is usually a single-layer or multi-layer thin film material. The development of this technology has achieved many research results so far. However, the energy conversion efficiency of the flyer target (the efficiency of converting...

Claims

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Application Information

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IPC IPC(8): F42B3/113
CPCF42B3/113
Inventor 王窈李勇邢宗仁王亮唐舵覃文志高原吉祥波
Owner INST OF CHEM MATERIAL CHINA ACADEMY OF ENG PHYSICS
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