1) laser point transfer device
激光转点仪<测>
2) laser marker
激光刺点仪<测>
3) laser tachometer
激光转速仪
4) laser speedometer
激光测速仪
1.
Laser speedometer is the pivotal equipment in the process of setting up stream AGC control system,but the principle of laser speedometer based on double velocity of light and double scattering doppler technology has never been reported.
介绍了基于双光速-双散射多谱勒技术的激光测速仪工作原理,对该类非接触式直接测量线速度的仪表进行了数学解析,并在与其他测速仪比较的基础上,对激光测速仪应用对象、仪表扫描周期和采样周期与滤波的关系、测量精度主要影响因素、安装及日常使用等实际问题提出了解决办法。
2.
Existing calibration methods of laser speedometer are summed up and one new calibration method and instrument with simulant target is put forward in this paper.
综述了激光测速仪的现有校准方法,提出了采用模拟目标进行激光测速仪校准的新方法,并根据该原理研建了校准装置。
5) laser velocimeter
激光测速仪
1.
The reserch of pulse-semiconductor laser velocimeter;
脉冲式半导体激光测速仪的研究
2.
In the control system for skin pass mill elongation,the measuring devices in common use are pulse generator and laser velocimeter,of which the control accuracy of the laser velocimeter is higher.
在平整机延伸率控制系统中,常用的测量装置是脉冲发生器和激光测速仪。
6) laser particle sizer
激光测粒仪
1.
This leads to the performance improvement of laser particle sizer in the whole s.
提出了综合运用夫朗和费衍射和米氏散射,即在大粒径范围内采用夫朗和费衍射理论,而在小粒径范围内采用米氏散射理论,来改善小粒径范围内的测量精度,保证激光测粒仪在整个粒径范围内的测量精度。
2.
Based on the classical Mie scattering theory, the influence on the measured results which is caused by the inputted refractive index in data processing of the small angle forward scattering laser particle sizer is investigated by means of POWELL inversion algorithm.
在经典Mie散射理论基础上,利用POWELL反演方法研究了小角前向散射激光测粒仪中输入折射率对测量结果的影响。
3.
The classical Mie light scattering theory is used in the design of the laser particle sizers to extend their lower size limit.
在激光测粒仪的设计和数据处理过程中,都采用了无因次准则数X=1。
补充资料:激光测云仪
激光测云仪
laser ceilometer
]lguang ceyunyl激光测云仪(zaser eeilometer)利用激光技术测量云底高度的一种主动式大气遥感设备。一般由激光发射系统、接收系统、光电转换系统、数据处理显示系统和控制系统等组成。探测方式分为垂直探测和扫描探测两种。探测原理是:激光器对准云底发射脉冲光束,接收来自云滴对激光产生的后向散射光;根据从发射激光脉冲到接收到回波信号的时间和激光束的仰角,算出云底高度。如果激光光束穿透云层后能量尚未衰减殆尽,再遇到第二层甚至第三层云时,仍可测到云滴的后向散射光信号,从而测得云的层次和厚度。由于这种回波信号较弱,侧得的云的层次和厚度有时误差较大。激光测云仪也可用来研究激光束在云中的衰减情况。激光测云仪多采用固体激光器(如红宝石激光器、钱玻璃激光嘀 中国77A式激光测云仪赵占东摄器)和半导体激光器(如砷化稼激光器)。中国77A式激光测云仪采用红宝石激光器,探狈J云底高度的范围为60一8 000米,最大斜距可达13 000米,精确度在1 000米以下为士10米,1 000米以上为士1%。激光测云仪一般都包含有微型数据处理器,实现了云高探测与云高计算自动化。 (李有来)
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