Method of velocity measurement based on Moire fringe and nonlinear tracking differentiator

	Method of velocity measurement based on Moire fringe and nonlinear tracking differentiator
	Huang F.; Wan Q.; Yang S.; Zhao C.; Yu H.
	2014
发表期刊	Hongwai yu Jiguang Gongcheng/Infrared and Laser Engineering
ISSN	ISBN/10072276
卷号	43 期号:6 页码:1930-1935
摘要	In order to realize velocity and acceleration measurement at low speed, a new type method of velocity measurement at low speed was designed which is based on the method of Moire fringe and nonlinear tracking differentiator. First of all, the electric signal of Moire fringe was analyzed. Then the electric signal from photoelectric encoder was filtered by nonlinear tracking differentiator and the phase delays were compensated. Finally, velocity and acceleration measurement was realized by using cascaded nonlinear tracking differentiators. The test proves that the stationarity and precision of velocity measurement at low speed are improved, as well as the sampling frequency. The method was applied in a system with a 21 -bit encoder as the angle sensor, and velocity and acceleration could be measured. When the speed is 0.0017()/s and sampling time is 5 ms, sampling numbers is 20 times than that of ordinary methods. The real-time performance, stationarity and precision of velocity measurement at low speed can be improved by using the method.
收录类别	EI
语种	中文
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/44158
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Huang F.,Wan Q.,Yang S.,et al. Method of velocity measurement based on Moire fringe and nonlinear tracking differentiator[J]. Hongwai yu Jiguang Gongcheng/Infrared and Laser Engineering,2014,43(6):1930-1935.
APA	Huang F.,Wan Q.,Yang S.,Zhao C.,&Yu H..(2014).Method of velocity measurement based on Moire fringe and nonlinear tracking differentiator.Hongwai yu Jiguang Gongcheng/Infrared and Laser Engineering,43(6),1930-1935.
MLA	Huang F.,et al."Method of velocity measurement based on Moire fringe and nonlinear tracking differentiator".Hongwai yu Jiguang Gongcheng/Infrared and Laser Engineering 43.6(2014):1930-1935.

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