Television automatic video-line tester

Details Television automatic video-line tester Television automatic video-line tester

Aug 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998spie.3558..150g&link_type=abstract

Proc. SPIE Vol. 3558, p. 150-154, Automated Optical Inspection for Industry: Theory, Technology, and Applications II, Shenghua Y

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The linearity of telescope video-line is an important character for geodetic instruments and micrometer- telescopes. The instrument of 1 inch video-line tester, invented by University of Shanghai for Science and Technology, has been adopted in related instrument criterion and national metering regulation. But in optical and chemical reading with visual alignment, it can cause subjective error and can not give detailed data and so on. In this paper, the author put forward an improvement for video-line tester by using CCD for TV camera, displaying and processing CCD signal through computer, and auto-testing, with advantage of objectivity, reliability, rapid speed and less focusing error.

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