Simultaneous Flatness and Surface Roughness Measurement of a Plastic Sheet Using a Fan-Shaped Laser Beam Scanning System

Fang Jung Shiou; Y.W. Deng

doi:10.4028/www.scientific.net/KEM.381-382.233

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3D Topography for Drilled Surfaces
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Study on the Key Technology of Airport Runway Frictional Coefficient Measurement
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Simultaneous Flatness and Surface Roughness Measurement of a Plastic Sheet Using a Fan-Shaped Laser Beam Scanning System
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A Surface Texture Information System Integrated with AutoCAD for Next Generation GPS
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A Study on Surface Material Measures for Areal Surface Texture Measuring Instruments: Measuring Conditions for the Areal Profiling
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A Novel Laser Feedback Interferometer for Metrology of Large Range Displacement
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HomeKey Engineering MaterialsKey Engineering Materials Vols. 381-382Simultaneous Flatness and Surface Roughness...

Simultaneous Flatness and Surface Roughness Measurement of a Plastic Sheet Using a Fan-Shaped Laser Beam Scanning System

Abstract:

A fan-shaped laser beam scanning measuring system based on the triangulation principle, was newly developed in this study to measure simultaneously the flatness and the surface roughness of a surface plate with good reflectivity after a suitable calibration. The developed system mainly consists of a micro-focus fan-shaped line laser, an image processing system, a PC-based 3-axis machine, and a PC. The height value of the object can be calculated, based on the offset between the position projected onto the object and the position projected onto the platform, after carrying out the height calibration with gauge blocks. According to the scattering theorem, a correlation between the surface roughness of the test object measured with a precision stylus instrument and the average fringe width projected onto the test object surface, has been constructed.

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Periodical:

Key Engineering Materials (Volumes 381-382)

Pages:

233-236

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.381-382.233

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Online since:

June 2008

Authors:

Fang Jung Shiou, Y.W. Deng

Keywords:

Coordinate Measuring Machine, Fan-Shaped Laser Beam Scanning System (FLBSS), Micro-Focus Laser, Surface Roughness (SR)

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