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Study of Laser Displacement Sensor and Output Characteristics

Author: HuangZuo
Tutor: FengQiBo
School: Beijing Jiaotong University
Course: Optical Engineering
Keywords: Trigonometry Laser displacement sensor CCD Four quadrants
CLC: TP212
Type: Master's thesis
Year: 2010
Downloads: 321
Quote: 4
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Abstract


Based on triangulation laser displacement sensor applications extremely broad field of quality inspection , equipment maintenance , process and equipment monitoring , mechanical and production automation and research and development and other fields , the displacement sensor to optimize products and processes play a decisive role. However, the current domestic market is still not mature triangulation laser displacement sensor products come out , the market occupied by foreign products , while the prices of foreign products are very expensive, so find out the laser displacement sensor output characteristics in the gap with foreign products , an improved program is a work of great application value . In this thesis, the measurement principle of triangulation method , using a semiconductor laser as a light source and build a four-quadrant detector and based on two sets of linear CCD detector measurement system , the various components of the measurement system to do a detailed analysis of the selection and from the theoretical and experimental analysis of the systematic measurement errors caused by a variety of factors, and to eliminate or weaken these factors approach. The main work is as follows : 1. Designed based on four -quadrant laser displacement sensor , and the sensor debugging and calibration. Achieve the desired linear range. Suitable for small -scale , high-precision measurements. (2) is designed based on linear CCD laser displacement sensor , and the sensor debugging , calibration and testing. For a large range , the accuracy of the measurements. 3 compares the self-designed based on linear CCD laser displacement sensor and the sensor output characteristics similar foreign , for a variety of test surface ( color, material , roughness, tilt ) for testing, theoretically analyzed the causes of these reasons for the gap , and proposed improvements. For future improvement sensor provides a reference design .

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CLC: > Industrial Technology > Automation technology,computer technology > Automation technology and equipment > Automation components,parts > Transmitter ( converter),the sensor
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