1)  laser velocimeter
激光流速计
2)  laser velometer
激光流速计
1.
By use of the laser velometer we test the distribution of flow space along the lines of the shaft and the shear in two kinds of the typical hydrocyclone.
改变传统的利用皮托管插入法对流场分布的测试方法 ,利用激光流速计分别对两种具有代表性的液体旋流分离器的切线方向和轴线方向的流场分布进行了测试 ,得到了精确的结果。
3)  Doppler laser velocimeters
多普勒激光流速计
4)  laser
激光
1.
Analysis model and experimental research of dilution in laser induction hybrid cladding;
激光感应复合熔覆的稀释率分析模型及实验研究
2.
The Reconfigurable Multifunction Laser Processing System Based on the Optimal Slice Process;
基于最优切片工艺的可重构多功能激光加工系统
3.
Study of laser transmission effect in dye-cholesteric liquid crystals;
激光在手性染料液晶中的传输效应研究
5)  lasers
激光
1.
Comparison of histologic,biochemical and mechanical properties of murine skin treated with the long-pulse and Q-switched 1 064-nm Nd:YAG lasers;
长脉宽与Q开关1064nm Nd:YAG激光对皮肤作用的比较
2.
Combined Application of Argon and Nd: YAG Lasers in Treatment of Primary Angle-Closure Glaueoma;
氩激光联合Nd:YAG激光治疗原发性闭角型青光眼
3.
Unification Single Mode Equation of Class-B Lasers with Homogeneous Broad Line;
B 类均匀加宽激光器单模方程的统一性
6)  laser beam
激光
1.
The results show that:①the transient field become quasi-steady state after the laser beam scans 2 pots ②the peak temperature and the temperature difference of upper-lower surface calculated by 2D FEM are close with that calculated by 3D FEM ③good agreement is obtained between experimental and analytical result
用小步距间歇跳跃式移动光源模拟激光束的连续扫描,采用简化模型,对板料激光成形时的三维瞬态温度场进行了有限元分析。
2.
The polarization of the laser beam output from the PHC-1 500 laser unit was experimentally verified.
试验验证了PHC-1500型CO2激光器输出激光经传输光路转换后的偏振化方向。
参考词条
补充资料:激光流速计
分子式:
CAS号:

性质:利用多普勒效应和光外差技术来测量流速的仪表。当激光照射到流动中的粒子时,粒子散射光产生的多普勒频移与粒子运动速度成正比。特点是精度高,动态反应快,测量范围宽,线性好,方向灵敏性好,空间分辨率高,属不接触测量,对流场不破坏等。但要求介质有一定的透明度和含有适量的散射粒子,故使用上受到一定限制。适用于研究边界层和窄通道的流体流动性;测量风洞气流速度;火箭燃料的流速;飞行器喷射气流的流速;大气风速;化学反应中粒子的大小及汇聚速度;熔融玻璃聚合物等高黏度流体的缓慢运动等。

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