Full Digital Processing System of Photoelectric Encoder

doi:10.3390/s19224892

CORC > 长春光学精密机械与物理研究所 > 中国科学院长春光学精密机械与物理研究所

	Full Digital Processing System of Photoelectric Encoder
	C.H.Zhao; Q.H.Wan; L.H.Liang; Y.Sun
刊名	Sensors
	2019
卷号	19 期号:22 页码:13
关键词	photoelectric encoder,full digital,error compensation,normalization,optical encoder,displacement,sensor,Chemistry,Engineering,Instruments & Instrumentation
DOI	10.3390/s19224892
英文摘要	A photoelectric signal, output by a photoelectric receiver, may detrimentally change after the photoelectric encoder is used for a period of time or when the environment changes; this will directly affect the accuracy of the encoder and lead to fatal errors in the encoder. To maintain its high accuracy, we propose an encoder that can work in a variety of environments and that adopts full digital processing. A signal current that travels from the receiver of a photoelectric encoder is converted into a voltage signal via current limiting resistance. All signals are directly processed in the data processor component of the system. The encoder converts all the signals into its normalized counterpart. Then, the angle of the encoder is calculated using the normalized value. The calculated encoder angle compensates for any error. The final encoder angle is obtained, and the encoder angle is output accordingly. Experiments show that this method can greatly reduce the encoder's volume. This method also reduces the encoder error from 167 arcseconds to 53 arcseconds. The encoder can still maintain a high accuracy during environmental changes, especially in harsh environments where there are higher accuracy requirements.
语种	英语
内容类型	期刊论文
源URL	[http://ir.ciomp.ac.cn/handle/181722/62760]
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	C.H.Zhao,Q.H.Wan,L.H.Liang,et al. Full Digital Processing System of Photoelectric Encoder[J]. Sensors,2019,19(22):13.
APA	C.H.Zhao,Q.H.Wan,L.H.Liang,&Y.Sun.(2019).Full Digital Processing System of Photoelectric Encoder.Sensors,19(22),13.
MLA	C.H.Zhao,et al."Full Digital Processing System of Photoelectric Encoder".Sensors 19.22(2019):13.