Method of analysis based on quality of Moriefringe signals for high precision optical encoder

	Method of analysis based on quality of Moriefringe signals for high precision optical encoder
	Zuo, Y.; K. Long; B. Liu; L. Zhou; J. Liu and K. Qiao
	2015
发表期刊	Hongwai yu Jiguang Gongcheng/Infrared and Laser Engineering
卷号	44 期号:1 页码:260-265
摘要	Aiming at the affection of Morie fringe signal quality for high-precision encoder interpolation error, a method of analysis based on quality of morie fringe signals for high precision optical encoder was presented. The signal parameters were obtained with using signal reconstruction and Fourier transform algorithm, which reflects the real Morie signal quality. The accuracy of interpolation error of measurement was improved. While the encoder is motion, the data acquisition card samplings two photoelectric signal with a phase difference of /2. The signal waveform was got by reconstruction algorithm of sampling the signal. Through the discrete Fourier transform algorithm analyzing reconstruction waveform, the parameters like DC component, amplitude, phase, and harmonic component were solved. Finally, dynamic interpolation error is obtained based on relationship between the signal parameters and interpolation error by experimental verification. Experimental results show that, the interpolation error of a 24-bit absolute rotary optical encoder was measured. Interpolation extreme errors are +0.48 and -0.21. Compared with traditional method of interpolation error measurement, this method measures quickly. It is applicable to real-time detection of encoder dynamic interpolation error at the actual work site. , 2015, Chinese Society of Astronautics. All right reserved.
文章类型	期刊论文
收录类别	EI
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/56325
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Zuo, Y.,K. Long,B. Liu,et al. Method of analysis based on quality of Moriefringe signals for high precision optical encoder[J]. Hongwai yu Jiguang Gongcheng/Infrared and Laser Engineering,2015,44(1):260-265.
APA	Zuo, Y.,K. Long,B. Liu,L. Zhou,&J. Liu and K. Qiao.(2015).Method of analysis based on quality of Moriefringe signals for high precision optical encoder.Hongwai yu Jiguang Gongcheng/Infrared and Laser Engineering,44(1),260-265.
MLA	Zuo, Y.,et al."Method of analysis based on quality of Moriefringe signals for high precision optical encoder".Hongwai yu Jiguang Gongcheng/Infrared and Laser Engineering 44.1(2015):260-265.

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