[5] - The role of triangulation sensors in providing...

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The role of triangulation sensors in providing non-contact measuring solutions to tire makers.(LMI Selcom)(Brief Article) Article from: Rubber World Article date: May 1, 2001 Author: Snow, Michael More results for: touch probe cmm features Over three decades ago, Selective Electronic, known today as LMI Selcom, developed the first in a line of non-contact laser sensors that would transfigure quality control procedures in the tire industry. In the years to follow, the company honed its sensors' capabilities, creating more rugged products ideal for non-invasive measurement of rubber in numerous application areas. A sensor line was created that was one of the first to measure fresh uncured rubber from an extruder or calender, characterized as one of the harshest environments for a sensor to consistently measure with any accuracy. As the tire industry continues to become more competitive, LMI Selcom will continue to place increased importance on the need to enhance automation, lower material cost and continue reduction of waste. Trends in the use of laser sensor measurement in a variety of rubber and tire applications have grown as the technology to support such products has evolved. Overall, reliability and accuracy of laser sensors have greatly increased and provide added benefits that can yield millions of dollars in savings over a long term quality control program. Basic objective of measurement using laser triangulation For all on- and off-line applications, laser sensors are used in the rubber and tire industry to enhance competitiveness by improving productivity. Basic benefits of using laser sensors for quality control include: * increasing yield and productivity, * increasing quality by providing 100% product inspection, * reducing scrap production and rejects, and * improving work environment.
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A facility cannot afford high rejection rates in tire uniformity that would result in waste and lost production time. By initiating a quality control program using laser sensors, problems with poor quality or unusable product can greatly be reduced. Measurement principal of laser sensors Sensors for the rubber and tire industry use the "optical laser triangulation measurement" method to accurately measure objects or systems. With this technique, a beam of light is projected from the sensor to the surface to be measured. This technique is sometimes referred to as a "structured light" and is the equivalent of an automated light section microscope. At the surface, the laser projects a spot of light at one point. At some angle to the laser beam, a
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This note was uploaded on 11/23/2009 for the course MAK mak420 taught by Professor Tevfik denir during the Spring '09 term at University of Economics and Technology.

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[5] - The role of triangulation sensors in providing...

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