【作者】 余荣伟； 陈文建； 李武森； 迟泽英；

【Author】 Yu Rong-wei;Chen Wen-jian;Li Wu-sen;Chi Ze-ying;School of Electronic and Optical Engineering, Nanjing University of Science and Technology;

【机构】 南京理工大学电子工程与光电技术学院；

【摘要】 速度参量的精确测量在当今的检测领域里占据着重要的地位,速度测量的方法有很多种,以往使用较多的是电子和雷达测速,随着光学和光电技术的发展,光学测速法逐渐得到研究人员的重视。本文提出了一种光纤阵列空间滤波测速方法,该方法以光纤阵列构成空间滤波器,光电二极管作为光电探测器,采用模数转换器和FPGA实现信号处理过程,并且可以测量二维速度,理论表明该测速技术可以达到很高的测量精度,可以应用于非接触测速领域。更多还原

【Abstract】 The accurate measurement of velocity plays an important role in the current detection field, There are many methods to measure the velocity. With the development of optical and Optoelectronic Technology, Optical Velocimetry has received much attention and interest. In this paper, a new method for measuring velocity is proposed, The method is Spatial Filtering Velocity Measurement Based On Fiber Array. Spatial filter is consisted of fiber array, Photodiode is used as a photodetector. The signal processing procedure is realized by using a analog-digital converter and a FPGA,And it can measure two dimensional velocity.The theory shows that the velocity measurement technology can achieve high accuracy and it can be applied in the field of non-contact measurement.更多还原