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Develop of Online Laser Diameter Measurement

Author: PengZhiGuang
Tutor: WuQinQin；WangJianJun
School: East China University of Science and Technology
Course: Control Engineering
Keywords: Laser Technology Relative measurement He-Ne laser MCU
CLC: TN247
Type: Master's thesis
Year: 2011
Downloads: 140
Quote: 0
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Abstract


In the quartz glass tube , rubber tube outer diameter of the circular material industrial processes , it is necessary to accurately measure the outer diameter of the workpiece in order to achieve within the tolerances required by the customer . Traditional contact measurement can not meet this requirement , and affect the quality of products, its use is limited . Online laser diameter measurement of its simple structure , reliable, able to work under harsh conditions of high temperature , radiation and strong vibration and many other advantages , become a diameter measuring technology . To this end, the research and development of online non-contact measurement tube outer diameter instrument has important practical significance . This paper discusses in detail the principle of laser scanning to measure the diameter of the glass tube , a relative measurement method , the overall diameter of the laser measuring instrument design , and design the hardware and software components . MCU AT89S52 and programmable logic devices EMP , and developed laser diameter measurement signal input and output , photoelectric conversion , motor drives , digital signal processing, human-machine interface and communication interface circuit, and the software part of the main program , the signal processing and communication modules , has taken effective anti-jamming measures , to achieve accurate measurement of circular pipe diameter in harsh conditions . Laboratory testing and field use : the line laser diameter measurement , stable performance, reliable operation, technical indicators have reached the design requirements .

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CLC: > Industrial Technology > Radio electronics, telecommunications technology > Photonics technology,laser technology > Laser technology, the maser > Optical detection techniques
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