1) laser triangulation
激光三角法
1.
Biomedical applications of laser triangulation;
激光三角法在生物医学领域中的若干应用
2.
Small object′s dimension measure and three-dimension reconstruction system based on laser triangulation;
基于激光三角法的小物体尺寸测量及三维重构系统
3.
Study on the Key Techniques for Autobody Parts Measurement with Laser Triangulation;
车身零部件激光三角法检测关键技术研究
2) laser triangle method
激光三角法
1.
A novel method for improving measuring accuracy in laser triangle method;
提高激光三角法测量精度的新方法
2.
Its lateral vibration magnitude under the stochastic surface excitation of the maglev track and its effect on the measurement accuracy of the maglev track geometry parameters with the laser triangle method are studied.
建立了磁浮轨检车横向振动二自由度模型,研究了在磁浮轨道随机路面激励下横向振动幅值的大小及其对激光三角法测量磁浮轨道几何参数精度的影响,结果表明该影响在所要求的测量精度范围之内。
3.
This paper puts forward a novel micro-displacement sensor and introduces its working principle and structure, which uses laser triangle method and optical lever principle.
常用的激光三角法微位移传感器适用于直线位移测量,不适用于微小角位移的动态测量。
3) laser trigonometry
激光三角法
1.
A kind of virtual measuring apparatus for surface roughness was designed, which works based on oblique incidence laser trigonometry, developed in the software environment LabVIEW, realized with black-based design, and used in measuring surface roughness for high-precision plane non-destructively, rapidly and accurately.
该仪器利用激光三角法测量原理,借助Lab-VIEW软件开发平台,运用模块化设计,可实现对精密检测平面无损伤、快速、高精度的表面粗糙度测量。
4) Laser triangulation method
激光三角法
1.
A system measuring micro vibration in weak reflection based on PSD and laser triangulation method
PSD激光三角法弱反射微振动测量系统
2.
A new method using one-dimensional PSD (Position Sensitive Detector) and the laser triangulation method to measure the vibration mode of loudspeaker shell is proposed.
基于以上,在阅读一些相关文献的基础上,硕士期间主要开展了如下工作:1、提出了一维PSD(Position Sensitive Detector)激光三角法测量扬声器薄壳振动模态的新方法。
5) laser triangulation
激光三角法测量
1.
The laser triangulation is used on assembly line extensively because of its rapidity,high precision,long range and dynamic measurement.
激光三角法测量,因其具有快速、精确、动态、大范围测量的优点,广泛运用于在线精密测量。
6) laser triangulation
激光三角测量法
1.
Measurement of turnplate s run-out error of induction meters based on PSD and laser triangulation;
基于PSD和激光三角测量法的电能表转盘跳动误差测量
补充资料:半导体激光泵浦的激光晶体
半导体激光泵浦的激光晶体
LD pumped laser crystal
半导体激光泵浦的激光晶体LD PumPed lasercrystal适用于半导体二极管作泵浦源的激光晶体。传统的固体激光器一般用闪光灯泵浦,由于闪光灯的发光区域宽,只有一部分能量被吸收后转换成激光,大部分转换成热量,使工作物质温度上升,恶化了输出激光束的质量。半导体激光器输出的激光谱线窄(一般为几纳米),选择合适的半导体激光器,使其激光光谱与某种固体激光材料的吸收光谱匹配,即可达到高效泵浦,大大减轻固体工作物质的热负荷。 因为半导体激光器光泵区域小,需用的晶体尺寸也小,因此要求基质晶体内可掺入的激活离子浓度要高,且不产生浓度碎灭。此外,要求与光泵的半导体激光波长相匹配的晶体的吸收带要宽,吸收系数要大;要有低的阑值功率;Q开关运转时,荧光寿命要长。当泵浦光源从闪光灯改变为半导体激光二极管时,对被泵浦的激光晶体产生了不同的要求。用闪光灯泵浦时,对材料的热性能和机械性能有严格要求,而半导体泵浦则更注重材料的光谱性能。 在已使用的激光晶体中,掺钱石榴石(Nd:YAG)晶体的阑值功率低,光学质量高,是应用于半导体激光光泵的固体激光器的主要材料。由于Nd3+离子在基质晶体中受分凝系数的限制,Nd3+离子浓度不能太高,所以一些氟化物和钨、钥酸盐晶体等掺杂浓度高,激光效率高,荧光寿命长,有可能成为半导体激光泵浦的后选晶体。 用半导体泵浦可制成效率高、功率和频率稳定、激光束质量好、寿命长的全固化激光器,并经各种频率转换技术,可发展成各种波长、各种模式、各种运转方式的激光器,这种激光器将在很大范围内取代已有的各类固体、液体和气体激光器。 (沈鸿元)
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条