激光鼠标用于低频振动测量的研究  

The Laser Mouse for Low Frequency Vibratory Motion Sensing

作　　者：张佳欢[1] 孔令雯[1] 夏巍[1] 祝宏彬 王鸣[1] 

机构地区：[1]南京师范大学物理科学与技术学院江苏省光电技术重点实验室,南京210023

出　　处：《光电子技术》2017年第1期30-34,共5页Optoelectronic Technology

基　　金：江苏省自然科学基金(BK20161559)

摘　　要：利用激光鼠标的自混合干涉测量物体的低频振动,在实际的测量中还原出振动波形,节省了硬件成本,降低了测量系统的复杂程度。使用高精度的商用测振仪来标定测量结果,验证了实验装置的性能。实验结果表明,可以正确还原出低频振动,并且分析了可能出现误差的一些原因。A laser mouse is modified to be a low-cost laser self-mixing Doppler interferometer to perform vibration measurement. The vibration waveform can be retrieved with a simple pro- gram, which,reduces the cost of hardware and complexity of the measurement system. High-pre- cision commercial vibrometer is included in the vibration measurement to evaluate the perform- ance of the interferometer during the experiment. The experimental results show that the wave- form can be retrieved correctly at low frequency, and some possible causes of these errors are analyzed.

关 键 词：振动测量 激光自混合 鼠标 非接触式测量 低成本 

分 类 号：TN248[电子电信—物理电子学]