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Proceedings Paper

On-line noncontact position velocity-measurement system
Author(s): Xiong-Jun Li; Zhu Li; Ling-Jing Tang
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Paper Abstract

Position and velocity measurement of hot steel strip ends in the mouth of the flying crop shear is im portant in hot rolling mill. In order to replace the y ray position detector and contact velocity trans ducers using two rolling wheels a system using a linear CCD is introduced in this paper. A new model of strip monitoring and shear control is posed. In the design of software unique set of algorithms for data processing in C language and assembler language is used. Particularly variable threshold method based on the peak video eliminates the temperature difference effects a curvefitting algorithm is very useful for realtime processing and high reliability of the system. Experimental results show that the system has good performance and high reliability. Keywords: photoelectrical detecting position/velocity measurement crop shear optimization realtime image processing edge detection.

Paper Details

Date Published: 22 September 1993
PDF: 4 pages
Proc. SPIE 2101, Measurement Technology and Intelligent Instruments, (22 September 1993); doi: 10.1117/12.156336
Show Author Affiliations
Xiong-Jun Li, Huazhong Univ. of Science and Technology (China)
Zhu Li, Huazhong Univ. of Science and Technology (China)
Ling-Jing Tang, Huazhong Univ. of Science and Technology (China)


Published in SPIE Proceedings Vol. 2101:
Measurement Technology and Intelligent Instruments

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