Vibration analysis by speckle techniques in real time.
Vibration analysis by speckle techniques in real time.
复制标题
通过散斑技术进行实时振动分析。
DOI：
10.1364/ao.20.001467
复制
发表时间：
1981
期刊：
影响因子：
1.9
通讯作者：
J. Klenk
中科院分区：
文献类型：
--
作者：
H. Tiziani;J. Klenk
通过记录氧化铋(Bi(12)SiO(20))晶体中的时间平均散斑图样，研究了准实时振动分析。当用球面波照射晶体时，来自时间平均散斑图案的空间结构信息导致夫琅和费平面上的条纹。当选择适当的波长来写入和读出信息时，不需要存储设备。实验结果将与用多普勒频移振动计获得的测量结果进行比较。
Vibration analysis in quasi-real time is studied by recording the time-averaged speckle pattern in a bismuth silicon oxide crystal (Bi(12)SiO(20)). When the crystal is illuminated with a spherical wave, the spatially structured information from the time-averaged speckle pattern leads to fringes in the Fraunhofer plane. No storage device is required when the appropriate wavelength is chosen for writing and reading out the information. Experimental results will be presented together with a comparison of measurements obtained with a Doppler shift vibrometer.