基于空间滤波测速系统的分析和验证  

Analysis of Velocimetry Accuracy Based on Spatial Filter

作　　者：孙欣[1] 

机构地区：[1]海军装备部电子部,北京100841

出　　处：《光学与光电技术》2013年第6期84-87,共4页Optics & Optoelectronic Technology

摘　　要：光电测量技术由于具有抗干扰和非接触的特点,在工业生产中被广泛应用。介绍了一种基于空间滤波原理的非接触速度测量方法。该方法将传输光栅作为空间滤波器,对运动信号进行滤波,由光电检测器检测信号,处理后得到速度信息。通过仿真和实验证明该方法具有很高的测速精度,能够在实际应用中得到推广。Optical techniques have important and practical advantages of noncontacting and nondisturbing operations in in- dustry. A noncontacting velocity measurement method based on spatial filtering principle is proposed in this paper. Transmit slit is defined as a spatial filter for filtering the signal, and photodetector is used for receiving signal. Through simulating and experiment, we prove the method is effective for veloeimetry.

关 键 词：非接触 抗干扰 空间滤波 传输光栅 光电检测器 

分 类 号：TP216[自动化与计算机技术—检测技术与自动化装置]