In order to explore the dynamic variation rule of temperature distribution on surface of optical element, the temperaturerise effect of atmospheric plasma processing was analyzed by using simulation model, and the corresponding thermal
stress mathematical model was established for fused silica. On this basis, the experiment of plasma processing was carried out, the dynamic variation rule of temperature distribution on surface of four materials of aluminum, aluminum alloy, SiC and fused silica during the atmospheric plasma processing was analyzed, and the verification and comparison with the simulation results were carried out. The results show that the arc discharge atmospheric plasma polishing technology can effectively remove the damage layer of fused silica optical element by physical polishing, and the simulation model can provide data support for the atmospheric plasma processing technology.
A new analysis method based on Michelson interference was given, which was tightly relied on the high reflection optical character in the laser initiated device (LID). By analysis of the optical interference wave combined with the microscopy image of the LID’ optical path, reasons for the failure under low temperature were focused on water frozen at the entering face of the LID lens, which was confirmed in the next insertion loss researches of LID under a fast transition from low temperature to normal environment. The failure analysis method based on Michelson interference was helpful for reaction classified analysis of the LID and useful to modification of the design. The failure analysis method based on Michelson interference was also one of the testable attractions of the LID.
In this paper, the application of laser pyrotechnic device with dual seat single and dual state control function in airborne ejection escape system is studied. The system can meet the requirement of pilot's escape in emergency condition with two seats on board. The laser pyrotechnic device described in this paper takes the manual firing pyrotechnic laser as the ignition energy for the cabin life saving device, uses the optical fiber device to transmit the laser energy, designs the state selection switch for single and dual state control, and uses the laser explosive with different functions to realize the safety and life saving of the pilots in the left and right cabin. The device has the characteristics of novel structure, small volume, light weight, strong anti-electromagnetic interference, high safety and reliability, and is an ideal pyrotechnic device for the airborne ejection escape system in the future.
In this paper, in order to study the high temperature resistance of the transmission path of laser pyrotechnic system, the design of the high temperature resistant laser pyrotechnic system of the transmission path is designed. Combining with the design and research of the high temperature resistant multi-mode laser collimator, the high temperature resistant light energy transmission path is developed, and the laser energy transmission path through environmental test is used to carry out the system. The experimental results show that the high temperature resistant optical energy transmission path can make the laser pyrotechnic device fire normally after the high temperature test at 400℃ for 30 minutes and the mechanical environment test, which proves that the design of the high temperature resistant optical energy transmission path is feasible.
According to the demand of laser initiating device miniaturization and low power consumption of weapon system, research on the low power pulse laser detonation circuit with super capacitor. Established a dynamic model of laser output based on super capacitance storage capacity, discharge voltage and programmable output pulse width. The output performance of the super capacitor under different energy storage capacity and discharge voltage is obtained by simulation. The experimental test system was set up, and the laser diode of low power pulsed laser detonation circuit was tested and the laser output waveform of laser diode in different energy storage capacity and discharge voltage was collected. Experiments show that low power pulse laser detonation based on super capacitor energy storage circuit discharge with high efficiency, good transient performance, for a low power consumption requirement, for laser detonation system and low power consumption and provide reference light miniaturization of engineering practice.
This paper analyzes the design principle of integrated laser detonator, introduces the design method of integrated laser Detonators. Based on the integrated laser detonator, structure, laser energy -exchange device, circuit design and the energetic material properties and the charge parameters, developed a high level of integration Antistatic ability Small size of the integrated laser prototype Detonator. The laser detonator prototype antistatic ability of 25 kV. The research of this paper can solve the key design of laser detonator miniaturization and integration of weapons and equipment, satisfy the electromagnetic safety and micro weapons development of explosive demand.
Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks.
You are receiving this notice because your organization may not have SPIE eBooks access.*
*Shibboleth/Open Athens users─please
sign in
to access your institution's subscriptions.
To obtain this item, you may purchase the complete book in print or electronic format on
SPIE.org.
INSTITUTIONAL Select your institution to access the SPIE Digital Library.
PERSONAL Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.