69 results about "Chemical laser" patented technology

The invention discloses a supersonic oxiodide mixed sprayer of oxiodide chemical laser based on nitrogen as dilute gas, which is characterized by the following: setting two rows of iodine sprayer at subsonic segment of sprayer with caliber at phi0.5mm; setting the distance between two iodine sprayers at 2mm and the even distance of two rows of sprayer and sprayer throat at 3-5mm; designing the Mach number of sprayer outlet at 2.2-2.8 and each unit throat breadth of sprayer multiplied by 2 at 4-6mm; setting the breadth of sprayer outlet at 10-15mm. The invention saves the operating cost greatly, which is beneficial for industrial applying of oxiodide chemical laser.

A laser weapon cartridge for disabling and / or destroying a target is disclosed. In an embodiment, the laser weapon cartridge may be compatible within a ballistic gun. For example, the laser weapon cartridge may be placed in the breech of a gun and armed by the gun's firing device. The laser weapon cartridge may assess precise alignment of the optical axis of the laser with a target. Precise alignment maybe based on RF energy from the target. RF energy may be detected by an antenna array coupled to the laser weapon cartridge. When alignment of the target with the laser is detected, the laser weapon cartridge may fire a beam of laser light toward the target. In an embodiment, the laser light may be generated by a chemical laser.

The invention relates to a variable line selection stable resonant cavity suitable for an air flow chemical laser. A stable cavity structure is adopted for the device. A plano-concave reflector, a Brewster plate, a gain media, a Brewster plate, a diaphragm and a plane diffraction grating are successively arranged along an output dimension of laser. An off-axis parabolic reflector, a shutter system and a planar reflector are successively arranged in a first-order diffraction optical path. According to the variable line selection stable resonant cavity, a fixed diffraction grating is used for the laser device. The diffraction grating is used for realizing different diffraction angles of laser with different wavelengths. Through controlling and selection of the shutter system to branch lines with different wavelengths, outputting of air flow chemical laser in a selected line is realized. The variable line selection stable resonant cavity of the invention has advantages of: compact structure, high optical beam quality, high stability, quick line selection and outputting of the laser, etc. The variable line selection stable resonant cavity can be widely applied for the fields of laser material processing, environment monitoring, etc.

The invention provides a long-time iodine flow supply device, and relates to the technology of gas supply of a continuous wave oxygen-iodine chemical laser. The main body of the device has two parts: an electric heating iodine vapor storage tank and a combustion chamber for the combustion of two types of gas. The electric heating iodine vapor storage tank enables solid iodine to be heated to a certain temperature and enables the solid iodine to be changed into liquid iodine. Moreover, there is iodine vapor with a certain saturated vapor pressure on the liquid level. The combustion chamber is a closed space which is used for the combustion of carbon monoxide and oxygen, and the generated high-temperature and high-pressure gas enters the iodine vapor storage tank after the temperature adjustment through diluent gas. High-temperature carbon dioxide gas enters the liquid phase of the iodine vapor storage tank and then forms bubbles, thereby enabling heat energy to be transferred to the liquid iodine and enabling the iodine to be vapored into iodine vapor, wherein the bubbles comprise iodine vapor with a certain density. When the bubbles continue to rise in the liquid phase, the phenomenon of mass and heat transfer continues to happen till the balance is reached. The bubbles flow out from the liquid phase, enter a gas phase, pass through a gas supply pipe and then enter a laser main body.

The invention herein is directed to a dual-chamber combustion laser assembly having lighter weight (per unit flow area), a more compact, flexible configuration for packaging in spacecraft, aircraft, or ground mobile vehicles, higher mass efficiency from lower heat loss and proven power extraction efficiency of linear lasers, superior output beam quality by incremental compensation of gain medium optical path disturbances and by reduction in time-dependent variations in structural and gain medium characteristics, lower cost and shorter fabrication time for modular dual flow laser and linear optics, more efficient pressure recovery with side-wall isolation nozzles and compact diffuser configurations, and increased small signal gains for more efficient extraction of overtone power.

The invention relates to a testing device of an oxygen / iodine ultrasonic mixing heat flow field. A high speed CCD camera-based image testing device is adopted for quantitative testing of the mixing condition of a heat flow field of a chemical oxygen-iodine laser (COIL) with ultrasonic iodine injection (a real flow field during operation of the chemical oxygen-iodine laser). The device comprises a mixing flow field testing section, a light filtering device, a high speed CCD camera and a computer data processing system. Through special design of the testing section, the device makes the oxygen iodine mixing flow field visible at a jet pipe outlet along the flow direction in a direction perpendicular to the jet pipe axis; with the combination of the light filtering device, the high speed CCD camera is used for imaging the oxygen / iodine mixing flow field, and quantitative values of parameters related to the flow field mixing are obtained through digital image processing. Through design of a rotating disc, the device enables the attenuation rate of an attenuation sheet to be convenient to adjust, and thus the testing device is suitable for various operation conditions of COIL.

The invention belongs to the technical field of temperature measuring and discloses a temperature measuring method based on an HF first overtone emission spectrum, for the purpose of solving the temperature measuring problem of the ultrasonic flow field of an HF chemical laser. The method comprises: using a near-infrared spectrometer to measure HF first overtone emission spectrum signals, and then using the vibration-rotation intensity distribution formula of the HF first overtone emission spectrum to carry out numerical fitting on obtained data so as to calculate the temperature of a measuring system. The method can be applied to temperature distribution testing of different positions (a jet pipe outlet, an optical cavity and an optical cavity downstream ) and different stages (non-laser output and laser output) of an HF chemical laser flow field and can be popularized to other systems generating high vibration state HF (V>=2). The method has the advantages of simplicity, high precision, good stability and non interference with a testing body.

The invention relates to a high-Mach-number low-temperature spray tube for HF / DF chemical laser, and belongs to the field of HF / DF chemical laser spray tube design. A Russian newest unit segmentation scheme of the HF / DF chemical laser spray tube is employed, ultrasonic and ultrasonic mixed concepts of a traditional high-Mach-number low-temperature spray tube are introduced, and the flow whirlpool technology of RAMP and DEFLECTOR spray tubes is used. The high-Mach-number low-temperature spray tube for HF / DF chemical laser has the advantages that high mach number can be realized in a larger throat channel of the spray tube, processing is simple, influence of thermal deformation on the throat channel in the operation process is greatly reduced, and the service life of the spray tube is prolonged; the penetration length needed by injecting H2 air flow into a main spray tube is greatly reduced, and the mixing efficiency is higher; and the temperature and pressure of an optical cavity are lower, the gain of the optical cavity and the work pressure of a combustion room are greatly improved, and the volume efficiency, energy flow density and specific power of HF / DF chemical laser are improved.

The present invention relates to a technology for measuring HF high-vibration-state particle number distribution by using low-resolution near-infrared fluorescence spectrum, wherein the technology is based on the spontaneous radiation fluorescence spectrum technology, and is a new method for measuring the HF molecule high vibration excitation state energy level particle number distribution. According to the present invention, the method is mainly applied in the technical field of chemical laser test diagnosis, and is produced for simplification of the vibration excitation state particle number distribution measurement in the HF chemical laser system; with the method of the present invention, only the intensities of a plurality of P branch spectrum lines of the HF fundamental frequency spontaneous radiation fluorescence spectrum are subjected to simple adding, and characteristics of simpleness, convenience, high precision, non-invasion and the like are provided; and with the method of the present invention, the rapid measurement on various energy levels of the high vibration excitation state particle number distributions in the HF chemical laser can be achieved.

The invention relates to the technical field of pen manufacturing, in particular to an anti-counterfeiting sign pen, and aims to solve the defects that the existing anti-counterfeiting sign pen is difficult for anti-counterfeiting of artificial handwriting, and the handwriting identification is realized by experts with rich experience, higher expenses and more time by developing the anti-counterfeiting sign pen which can provide convenient and quick anti-counterfeiting writing and handwriting identification. A steel ball is arranged on a pen point. The anti-counterfeiting sign pen is characterized in that marks are scratched on the surface of the steel ball and comprise Chinese fonts, foreign language fonts, patterns and symbols; the aims of performing the anti-counterfeiting on the marks on handwriting lines by an amplifying glass is achieved. Scratching methods comprise a physical laser scratching method and a chemical laser scratching method; preferably, the patterns caused by corrosion with different degrees from different tissues on the surface of an alloy steel ball are marked by adopting acid. The anti-counterfeiting sign pen disclosed by the invention has the advantages of low production cost and anti-counterfeiting effect that the handwriting is easy to identify. The product has a broad application prospect in signature for business activities, writing of legal instruments and important documents and the like.

The invention discloses an infrared band chemical laser line width measuring device, which mainly includes a chemical laser, a narrow line width laser and a data acquisition card; the chemical laser and the laser output from the narrow line width laser are combined, and then undergo fast response detection in turn. The narrow linewidth laser reflected by the narrow linewidth laser passes through the optical multi-pass absorption cell and the photodetector, and the signal output by the photodetector is input to the data acquisition card; so The narrow-line-width laser reflected by the narrow-line-width laser is also input into the wavelength meter through the reflecting mirror in turn, and the output data of the wavelength meter is input into the data acquisition card. Also disclosed is a method for measuring the linewidth of a chemical laser in an infrared band. The invention has high measurement accuracy and simple testing process, and provides an effective method for engineering application to realize accurate and rapid measurement of the linewidth of the chemical laser in the infrared band.