오차 최소화된 정밀 광삼각법 프로브의 해석 및 설계Design & Analysis of an Error-reduced Precision Optical Triangulation Probes

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Optical Triangulation Probes (OTPs) are widely used for their simple structure. high resolution, and long operating range. However, errors originating from speckle, inclination of the object, source power fluctuation, ambient light, and noise of the detector limit their usability. In this paper, we propose new design criteria for an error-reduced OTP. The light source module for the system consists of an incoherent light source and a multimode optical fiber for eliminating speckle and shaping a Gaussian beam Intensity profile. A diffuse-reflective white copy paper, which is attached to the object, makes the light intensity distribution on the change-coupled device(CCD). Since the peak positions of the intensity distribution are not related to the various error sources, a sub-pixel resolution signal processing algorithm that can detect the peak position makes it possible to construct an error-reduced OTP system
Publisher
대한기계학회
Issue Date
2000
Language
KOR
Citation

대한기계학회 2000년 춘계학술대회 , pp.411 - 414

URI
http://hdl.handle.net/10203/137311
Appears in Collection
ME-Conference Papers(학술회의논문)
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