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Development of the Film Thickness Measuring Instrument Based on Infrared

Author: ZhangXing
Tutor: SunXiaoGang
School: Harbin Institute of Technology
Course: Instrumentation Engineering
Keywords: Film thickness Infrared Thickness Gauge VC 6.0
CLC: TP216.1
Type: Master's thesis
Year: 2011
Downloads: 58
Quote: 0
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Abstract


Plastic film such as polyethylene , polypropylene , and polyvinyl chloride is widely used in the field of industry, agriculture , and food packaging , and they are many varieties and specifications . The thickness of the film is one of the important physical indicators , it will directly affect the product yield , quality , economic efficiency , and cost of production , the film thickness measurement is the basis of the film manufacturing one of the test items . Therefore, the thickness of online testing has been carried out in the production process are important issues that people are concerned about . Online thickness testing instruments most industrial applications ray thickness gauges , but because of its radioactive hazards , more expensive , and there are statistical error shortcomings . The contrast of infrared thickness gauge with cheap safe and reliable . So in recent years , the use of infrared technology at home and abroad and continue the development of infrared thickness measurement . In this paper, the use of infrared technology to measure the thickness of the film . The main work of the topics include three parts : the system hardware design , software design and debugging test . The system is based on the principle of infrared transmission method to measure the thickness of the film . Wherein the hardware part by the measuring portion and the execution mechanism section composed of: measuring portion received through a power value of the measured film , the execution mechanism part responsible for the power meter and the light source along the guide rail scanning and to provide the displacement information . Part of the system software written in VC 6.0 , and receiving lower machine data processing and display function module calibration, parameter setting , measurement , data playback system maintenance . Verified by experimental data analysis of standard samples , the system has the advantage of response time , dynamic small error , repeatability , stability and good accuracy , at the same time it has a simple operation , easy maintenance , and fast response . In the structure and performance of a great breakthrough , compared with the domestic similar instrument to achieve the expected requirements . Industrial production standards can be achieved .

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CLC: > Industrial Technology > Automation technology,computer technology > Automation technology and equipment > Automation components,parts > Automatic testing equipment,instruments > Automatic measuring instruments
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