Paper
10 August 1998 Large-scale form and position error measurement
Qun Hao, Dacheng Li
Author Affiliations +
Abstract
A research on measuring form and position deviations of large scale dimension using laser diode, optical fiber and phase plate diffraction alignment technique and a matrix CCD detecting technique was proposed in this paper. The principle of laser alignment using a (pi) step phase plate was analyzed theoretically and calculated using a computer numerically. Also in the paper, the operation principle and signal processing methods of a matrix CCD that used to detect the deviation absolutely were stated. It was emphasized on introducing some of large-scale form and position errors measuring system and the measurement accuracy of these systems are given. The comparing experiment result with HP5528 exhibited that the accuracy of the system coincides with the one of HP5528 in the straightness measurement.
© (1998) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Qun Hao and Dacheng Li "Large-scale form and position error measurement", Proc. SPIE 3558, Automated Optical Inspection for Industry: Theory, Technology, and Applications II, (10 August 1998); https://doi.org/10.1117/12.318386
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CITATIONS
Cited by 2 scholarly publications.
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KEYWORDS
Charge-coupled devices

Optical alignment

Semiconductor lasers

Diffraction

CCD cameras

Scanners

Signal processing

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