2) photothermal deflection
光热偏转
1.
The theoretical expression for the normal component of photothermal deflection (PTD) with obliquely-crossed collinear configuration is presented and theoretical resultsare compared with the experimental data,both are in good agreement.
理论推导了斜交共线式光热偏转信号垂直(normal)分量的表达式,并进行了实验验证,两者结果一致。
2.
At present, photothermal deflection tech.
目前,广泛使用的测量弱吸收的方法有光热偏转技术和表面热透镜技术。
3) beam deflection
光偏转
1.
To study the influence of curvature on the propagation properties of laser-induced Rayleigh waves on curved surfaces,transient Rayleigh waves are generated by pulse laser action on the surfaces of aluminium cylinders with different diameters(10 mm,15 mm,20 mm,25 mm and 30 mm),and the waveforms are detected by the fiber-coupled beam deflection method.
实验中,采用基于光偏转原理的光纤传感装置,检测了沿直径为10 mm、15 mm、20 mm、25 mm和30 mm等5种圆柱样品侧面传播的Rayleigh波波形。
2.
By means of a new method based on a fiber-coupling optical beam deflection technique, a detailed experimental study has been made to clarify the characteristics of shock waves in different media.
论文的实验结果与分析表明实验采用的基于光偏转法的光纤传感器可以用来测量各种透明介质中冲击波波前参量的特性。
4) acousto-optic deflection
声光偏转
1.
Research on the coherent detection for frequency based on acousto-optic deflection
基于声光偏转的载频相干探测研究
5) optical beam deflection
光偏转
1.
Based on optical beam deflection(OBD),a fiber-optic diagnostic system is proposed to investigate the propagation of a laser-induced plasma shock wave and the oscillation of a cavitation bubble.
采用自行研制的光偏转测试系统对强激光诱导液体物质的空化现象进行了实验研究。
2.
By means of a high-sensitive fiber-optic sensor,which was developed in Nanjing University of Science & Technology based on optical beam deflection,the maximum radii of a laser-induced cavitation bubble in the vicinity of an aluminum target in water was carefully measured during the three oscillating cycles.
采用自行研制的高灵敏度的光偏转测试系统,测量了激光泡在不同激光能量作用下前三次脉动空泡的最大半径,结果表明在作用相同激光能量的情况下,随着脉动次数的增加,最大泡半径依次减小;对应于同一次脉动,随着激光能量的增加,最大泡径呈增加趋势;在此基础上分析了各次脉动过程中空泡泡能衰减的规律,取得了理论和实验在误差范围内相一致的结果。
3.
In the experimental study,cavitation bubble is induced by a laser pulse,the spatial evolution and velocity of the bubble wall in liquids with different surface tensions are detected by a fiber-optic diagnostic technique based on optical beam deflection.
实验中,用激光作为测试光源,采用光偏转测试系统研究了不同表面张力液体中空泡泡壁运动规律及泡壁速度的变化。
6) beam deflection
光束偏转
1.
Analyses of the frequency-shifting and beam deflection of the Bragg acoustooptic interaction in cascade;
级联布喇格声光互作用的频移与光束偏转分析
2.
Automatic measurement system for laser-induced plasma shock wave based on beam deflection;
光束偏转法自动测试激光等离子体冲击波系统的研制
3.
This article develops the hardware and software of an automatic measurement system for laser plasma shock wave,which is based on the principle of beam deflection.
本文根据光束偏转原理 ,研制了激光等离子体冲击波自动测试系统的硬件和软件。
补充资料:光线偏转
广义相对论认为,可见光或其他波段的电磁波穿过引力场时,会沿着弯曲空间中的测地线前进。因此,当一束光线经过大质量物体周围附近后,光线将偏向物体,这种现象称为光线偏转。其偏转角:
式中M为物体质量,R为光线离开大质量物体中心的最近距离。计算表明,当遥远的恒星发出的光线擦过太阳的边缘达到地球时,太阳引力场将使得恒星的光线偏转1奬75。在日全食时,拍摄太阳周围天空中一组恒星的位置,再在日全食发生以后(或以前)半年,按照同样的高度和方位角拍摄同一组恒星。在两张底片上选取均匀分布的恒星为定位标准,比较擦过太阳边缘的同一颗星的位置变化,可验证爱因斯坦广义相对论的这一预言。还可以利用甚长基线干涉仪测量类星体发出的射电波被太阳引力场偏转的数值,其精确度超过了光学观测。最近的测量结果表明,准确度已达到广义相对论预言值的1.007±0.009。
式中M为物体质量,R为光线离开大质量物体中心的最近距离。计算表明,当遥远的恒星发出的光线擦过太阳的边缘达到地球时,太阳引力场将使得恒星的光线偏转1奬75。在日全食时,拍摄太阳周围天空中一组恒星的位置,再在日全食发生以后(或以前)半年,按照同样的高度和方位角拍摄同一组恒星。在两张底片上选取均匀分布的恒星为定位标准,比较擦过太阳边缘的同一颗星的位置变化,可验证爱因斯坦广义相对论的这一预言。还可以利用甚长基线干涉仪测量类星体发出的射电波被太阳引力场偏转的数值,其精确度超过了光学观测。最近的测量结果表明,准确度已达到广义相对论预言值的1.007±0.009。
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