Apparatus for precise measurement of the length of long length m

Details Apparatus for precise measurement of the length of long length m Apparatus for precise measurement of the length of long length m

1976-06-04

1977-08-16

Phillips, Charles E.

Geometrical instruments

Area integrators

Electrical

324 34L, G01B 704

Patent

active

040416100

ABSTRACT:
The present invention relates to an apparatus for precise measurement of the length of long length materials which measures the length of a long length material such as electric wire, cable, etc. basically unit length by unit length in an inchworm manner by applying magnetic marks on said material and sensing them downstream while making correction for elongation of the material due to temperature and tension, and which measures only an odd length less than the unit length by means of, for example, a counter wheel.

REFERENCES:
patent: 2989690 (1961-06-01), Cook
patent: 3236124 (1966-02-01), Rhoades
patent: 3303419 (1967-02-01), Gith
patent: 3315159 (1967-04-01), Gith
patent: 3466535 (1969-09-01), Sterns et al.
patent: 3718976 (1973-03-01), Nippert
patent: 3970921 (1976-07-01), Ito

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