Method and apparatus of measurement of eccentricity dimension of

Details Method and apparatus of measurement of eccentricity dimension of Method and apparatus of measurement of eccentricity dimension of

1994-01-18

1995-10-17

Vargot, Mathieu D.

Plastic and nonmetallic article shaping or treating: processes

With measuring, testing, or inspecting

73150R, 264 124, 264285, 264295, 264339, 425140, 425141, G02B 644, G01M 1100

Patent

active

054588308

ABSTRACT:
A method and apparatus for measurement of the eccentricity dimension which measures the eccentricity dimension .alpha. between optical fibers and a coating member of a fiber ribbon made up of optical fibers and a coating member having a rigidity relatively lower than the fibers and covering the outer surface of fibers. When taking up the fiber ribbon at a constant speed, the rotational speed .omega..sub.a of a first rotary drum made to contact one surface of the fiber ribbon and the rotational speed .omega..sub.b of a second rotary drum made to contact the other surface of the fiber ribbon are measured and the radii R of the rotary drums, the overall thickness t of the fiber ribbon, and the rotational speeds .omega..sub.a and .omega..sub.b of the rotary drums are substituted in the following equation to compute the eccentricity dimension .alpha.:

REFERENCES:
patent: 3161704 (1964-12-01), Le Grand et al.
patent: 3504395 (1970-04-01), MacPherson
patent: 4562730 (1986-01-01), Gowman
patent: 4605525 (1986-08-01), Baxter
patent: 5094600 (1992-03-01), Sikora

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