Method and apparatus for measuring the diameter of a running elongate object such as an optical fiber
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United States of America Patent
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Jul 11, 1989
Grant Date -
N/A
app pub date -
Nov 12, 1987
filing date -
Mar 14, 1986
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The diameter of a running elongate object such as an optical fiber is measured by means of two opto-electronic systems. The systems have optical axes which are perpendicular to each other and to the running axis of the object. Each of the systems further includes a microscope lens for forming a blurred image of the object on a strip of photodetectors. The systems combine their images in an apparatus which calculates an accurate position of each edge of the object by interpolation.
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