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Laser ignition system with double-security design

A laser ignition and security technology, applied in offensive equipment, weapon accessories, fuzes, etc., can solve the problems of misoperation of pyrotechnics, voltage-controlled current source affecting the ignition laser, and safety is difficult to guarantee, so as to avoid misoperation, The effect of preventing electrostatic breakdown of the laser

Inactive Publication Date: 2012-12-26
CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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  • Application Information

AI Technical Summary

Problems solved by technology

This method has a simple structure but is difficult to guarantee safety. The stability of the voltage-controlled current source and any electromagnetic interference it receives will directly affect the output of the ignition laser, which in turn will lead to malfunctions of pyrotechnics.

Method used

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  • Laser ignition system with double-security design

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Embodiment Construction

[0010] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.

[0011] Such as figure 1 As shown, the laser ignition system with double security design includes: host computer 1, laser ignition controller 2, outgoing optical cable 12, detection optical cable 13, laser initiator connector 14 and laser initiator 15, wherein the laser ignition controller 2 includes : communication interface 4, microcontroller system 3, voltage-controlled current source 5, current limiting resistor 6, current limiting switch 7, laser 8, normally closed relay 9, first optical fiber connector 10, second optical fiber connector 11, photoelectric detector 16.

[0012] The upper computer 1 controls the single-chip microcomputer system 3 through the communication interface 4 in the laser ignition controller 2. When in the insurance mode, the single-chip microcomputer system 3 controls the current limiting switch 7 to open, the norm...

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Abstract

The invention discloses a semiconductor laser ignition system with a double security design, which belongs to the field of semiconductor laser ignition systems. The semiconductor laser ignition system comprises a singlechip system, a voltage-controlled current source, a laser, a first optical fiber connector, a second optical fiber connector, a laser detonator joint, a laser detonator, a photoelectric detector, an upper computer, a current-limiting resistor, a current-limiting switch and a normally-closed relay, wherein the singlechip system is connected with the upper computer, the voltage-controlled current source, the current-limiting switch, the normally-closed relay and the photoelectric detector respectively; the current-limiting switch is connected in parallel to two ends of the current-limiting resistor; the normally-closed relay is connected in parallel to two ends of the laser; the laser is connected with the voltage-controlled current source, the current-limiting resistor, the current-limiting switch and the first optical fiber connector respectively; the photoelectric detector is connected with the second optical fiber connector; and the laser detonator joint is connected with the laser detonator. In a security mode, static electricity is prevented from puncturing the laser. In a detection mode, the detection light power output by the laser is kept in a safe range. In an ignition mode, the laser can work in a rated state.

Description

technical field [0001] The invention belongs to the field of semiconductor laser ignition systems, in particular to a semiconductor laser ignition system with double security design. Background technique [0002] In the laser ignition system, high-power laser pulses are transmitted to the surface of the ignition agent of the laser pyrotechnics through an optical fiber, thereby detonating the pyrotechnics. The self-detection function of the laser ignition system requires the detection of the continuity of the optical path, so the ignition laser needs to be able to output low-power safe detection light to irradiate the laser pyrotechnics, and the optical window of the laser pyrotechnics reflects part of the incident light to the detection fiber, and then The power of the reflected light is detected by the photodetector to judge the continuity of the optical path. [0003] In a traditional laser ignition system, the ignition laser is directly driven by a voltage-controlled cur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F42C13/02
Inventor 曹军胜彭航宇王彪高志坚王立军
Owner CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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