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Photo-Electronic Measuring System of Inner Diameter of the Shell

Author: WangWei
Tutor: SongLu
School: Changchun University of Science and Technology
Course: Detection Technology and Automation
Keywords: measuring of inner diameter PDS(position sensitive device) optical triangulation DSP(digital signal processor) AVR single-chip microcomputer
CLC: TP274.4
Type: Master's thesis
Year: 2002
Downloads: 208
Quote: 1
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Abstract


The thesis is mainly about the noncontact photo-electronic measuring system of inner diameter of the shells whose calibers are from 30mm to 155mm.On the basis of optical triangulation measuring principle, the emphasis of the thesis is to investigate the weak signal measuring method of inner diameter employing the PSD. The system is of the controlling structure of subordinate two-poles microprocessor. The main controller is in charge of managing, communicating and the measuring of grating-displacement and angle-displacement. The subcontrollcr is in charge of the measuring of inner diameter of PSD, the analog-to-digital converting of the serial A/D and the data processing of DSP. The value of the shells inner diameter is sent into the data memory of the main controller whose core is the AVR high-speed embedded single-chip microcomputer and is displayed at last. During the course of measuring, the dialogue between the human being and the computer can be realized by the keyboard.

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CLC: > Industrial Technology > Automation technology,computer technology > Automation technology and equipment > Automation systems > Data processing, data processing system > Centralized testing and roving detection system
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