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激光器     
相关语句
  laser
    Government laser spending:The outlook
    美国政府激光器的投资预算
短句来源
    NRL Laser to Counter IR Missile Threat
    美海军研究实验室研制对抗红外导弹威胁的激光器
短句来源
    Matching of narrow band interference filter with central wavelength of Q switch double frequency laser
    窄带干涉滤波器与YAG调Q倍频激光器的匹配
短句来源
    New tactical high energy liquid laser
    新型战术高能液体激光器
短句来源
    Design of a pulse semiconductor laser power supply for fuze laser set
    引信激光装定用脉冲半导体激光器电源设计
短句来源
更多       
  lasers
    The bright outlook for lasers
    激光器的光明前景
短句来源
    It is useful for selecting reasonable system parameters through it. For the data process in DIAL system, we discussed the combined effects of temporal autocorrelation and lasers cross correlation and signal averaging.
    对于DIAL系统中的数据处理,本文着重讨论了信号平均技术和激光器回波信号时域自相关以及激光器互相关对CO2 DIAL系统测量灵敏度的影响。
短句来源
    Emphasis is placed in recent progress of spacebrne lidars in USA. Japan, Europe, Ruussia, special emphasis on variolls lasers used in spaceborne lidar, Such as Nd:YAG laser, Ho,Tm,Erlasers, Ti: Sapphire laser, Cr:LiSAF laser etc.
    对美、日、欧洲、俄罗斯等国星载激光雷达的进展情况,以及星载激光雷达中应用的各种激光器,如Nd:YAG激光器,Ho、Tm、Er激光器,钛宝石激光器,Cr:LiSAF激光器等作了着重评述。
短句来源
    the article describes and analyzes the intercept tests and present problems of the THEL,as well as the MTHEL and its first generation/second generation lasers. The significant progress of the solid state heat capacity laser and high power laser-diode array are reviewed specially.
    文中介绍和分析了战术高能激光系统的拦截试验和存在的问题 ,以及机动战术高能激光系统及其第一代 /第二代激光器 ,特别评述了固体热容量激光器和高功率激光二极管阵列所取得的重大进展。
短句来源
  laser apparatus
    In fields of high power laser apparatus, the high power aerodynamics laser and the high power chemical laser are the most progressing light source at present.
    高能气动激光器或高能化学激光器是目前高能激光武器中最有发展前途的高能激光光源之一。
短句来源
    Due to the inevitable absorption of crystal window, the crystal window will be distorted even burst while the power of high energy laser apparatus is several hundred thousand watt even mega-watt, so the quality of laser beam will be influenced and the laser apparatus will not work properly.
    由于晶体材料窗口不可避免的部分吸收作用,对于目前几十万瓦甚至兆瓦级的高能激光器来说,晶体窗口会产生热畸变甚至炸裂,从而影响输出光束质量甚至使激光器根本无法工作。
短句来源
  laser set
    Design of a pulse semiconductor laser power supply for fuze laser set
    引信激光装定用脉冲半导体激光器电源设计
短句来源

 

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      laser
    Two compounds were designed, synthesized, and characterized by 1H-nuclear magnetic resonance (1H-NMR), ultraviolet (UV)-visible, and matrix-assisted laser desorption/ionization (MALDI) mass spectra.
          
    Restriction Enzyme Pattern Analysis of Mycobacteria DNA by Capillary Electrophoresis with Laser-Induced Fluorescence Detection
          
    A new method for rapidly detecting restriction enzyme patterns of Mycobacterium DNA using capillary electrophoresis with laser-induced fluorescence detection (CE-LIFD) was developed.
          
    The polymers were characterized by IR spectra, thermal-weight analysis, scanning electron microscope and laser particle size analysis.
          
    Photoinduced intramolecular electron transfer process from C60 moiety to carbazole moiety has been studied by nanosecond laser flash photolysis.
          
    更多          
      lasers
    In this review article, the development of the double cladding optical fiber for high power fiber lasers is reviewed.
          
    The main technology for high power fiber lasers, including laser diode beam shaping, fiber laser pumping techniques, and amplification systems, are discussed in detail.
          
    Finally, the applications of fiber lasers in industry are also reviewed.
          
    The sources of monochromatic radiation were heliumneon lasers.
          
    An experimental study of gasdynamic windows for gas lasers
          
    更多          
      laser apparatus
    It is shown that the heat losses in the plenum chamber of gasdynamic laser simulated in a shock tube do not significantly affect the operating conditions of the laser apparatus under investigation.
          
    The potential energy curves are very similar to those of the mercury halide radicals, the electronic transitions of which can be employed for efficient laser apparatus.
          
    Transverse vibrational frequency data for three kinds of rubber strings, obtained with the aid of a novel laser apparatus, are compared with the analytical results.
          
    Standard laser apparatus for the certification of acoustical standard samples with respect to the velocity of ultrasound
          
    In this work, the topography of a real fracture surface in a rock sample has been digitized by means of a laser apparatus.
          
      laser set
    A laser set-up improved recently allows us to measure very accurately the binding energy of the ro-vibrational ground state of the 0u + purely long-range potential and the agreement with the theory published previously is excellent.
          
    New laser-induced fluorescence scheme for simultaneous OH and NO detection by a single laser set-up
          
    In this communication, we propose a new laser-induced fluorescence (LIF) scheme that allows the simultaneous detection of OH and NO by a single laser set-up.
          
    For this purpose, several experimental laser set-ups will be built in which some configuration characteristics will be changed (type of mirrors and pumping wavelength mainly).
          
    Purposely, we have developed various laboratory tunable laser set-ups to obtain accurate line strengths and pressure-broadening coefficients of atmospheric molecules and to test the performances of cutting-edge laser technology for trace gas sensing.
          
    更多          


    In this paper we present our development of the DZC-1 measuring device, in which a modulated Q-laser characterised by higher frequency, higher energy and narrower bandwidth of impulsive flashes is included as its essential element. This device can clearly record, on a single sensitized dry plate, two instant imagines of a projectile at various nutation angles, thus introducing a new method in the measurement of projectile nutation angles and nutation angular velocities.

    本文利用调Q红宝石激光器脉冲闪光频率高,单次光脉冲能量强,脉宽窄等特点,研制了DZC-1型测试装置。在同一张感光底板上清晰地获得了弹丸二次瞬态影象,为弹丸章动角及章动角速度的测试建立了一种新的方法。本文着重介绍该装置的工作原理、性能结构、技术指标,主要特征,以及利用该装置获得不同扰动状态下弹丸具有不同章动角时的图片,同时简单介绍章动角的求解方法及所得参数。

    This paper is about FEL that will be used in SDI, it introduces the development of FEL in Boing and Los Alamos.

    本文着重介绍了美国的波音公司和洛斯·阿拉莫斯国家实验室共同研制的二级自由电子激光器的进展情况及其结构和特性。

    Susan Test is a method for measuring the impact sensitivity of explosives, in which the explosive charge is confined by a metallic shell and launched by a air-gun or propellent-gun with a speed of 30-300m·s-1 or more respectively. After traveled a distance of about 3.7m, the projectile impacts on a steel target. The principle procedure of the test is described in this paper. The flying velocity of the projectile is measured by a timekeeping system, which consists of two He-Ne lasers and two photoelectric converters....

    Susan Test is a method for measuring the impact sensitivity of explosives, in which the explosive charge is confined by a metallic shell and launched by a air-gun or propellent-gun with a speed of 30-300m·s-1 or more respectively. After traveled a distance of about 3.7m, the projectile impacts on a steel target. The principle procedure of the test is described in this paper. The flying velocity of the projectile is measured by a timekeeping system, which consists of two He-Ne lasers and two photoelectric converters. The manner of the projectile impacted on the target, the deformation of the projectile caused by squeezing and compression, and the whole progress involving the ignition and explosion are recorded by a complete set of pulsed laser high speed schlieren photographic systen, which consists of a sequential pulsed Q-swithed ruby laser, a model 640 schlieren apparature. and an access type rotating mirror scanning high speed camera. A set of multiple senser-amplifier-transient waveform storage system is used to measure and record the superpressure of the air shock produced by the explosion. A Susan Test curve which represents the relationship between the velocity of the projectile and the relative energy release can be obtained from this test. The safety of some explosives, such as JO-9159. JOB-9003 and TNT/RPX 40/60 etc.. are e-valuated according to the results measured by Susan Test.

    苏珊试验是测量炸药撞击感度的一种射弹试验。将炸药装入壳体中,用空气炮或火炮以30~300m/s,甚至更高的速度发射,弹丸约经3.7m,与钢靶相撞。本文简介了试验的基本方法,用氦氖激光器、接收转换器、测时仪构成的光电系统测量弹丸的飞行速度;用红宝石序列脉冲激光器、纹影仪以及等待型转镜扫描相机构成的高速摄影系统拍摄弹丸的着靶姿态以及撞靶后挤压变形直至点火爆炸的全过程;用传感器、电荷放大器、瞬态波形存贮器构成的数据采集系统测量炸药爆炸后形成的空气冲击波超压。试验得到弹丸撞靶速度与相对释放能关系的苏珊感度曲线。本文给出了JO-9159、JOB-9003以及TNT/RDX 40/60等几种炸药的试验结果,对其安全性能作出了初步评价。

     
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