Length or angle measuring device

Details Length or angle measuring device Length or angle measuring device

1984-04-19

1986-02-18

Smith, Robert I.

Geometrical instruments

Area integrators

Electrical

331266, G01B 1104

Patent

active

045703469

ABSTRACT:
A length measuring instrument includes a flexible measuring band which slides in a groove defined by a scale carrier body. The measuring band is fixed at one end to the carrier body. The second, free end of the measuring band is fastened in an oscillator which excites this free end into high frequency, low amplitude vibrations. These vibrations act virtually to eliminate harmful friction between the measuring band and the scale carrier body, and to reduce fouling of the measuring band markedly.

REFERENCES:
patent: 2700222 (1955-01-01), Swenson
patent: 2779045 (1957-01-01), Harvey
patent: 2854752 (1958-10-01), Heacock
patent: 2952155 (1960-09-01), Koehne
patent: 3435918 (1969-04-01), Chombard
patent: 4170826 (1979-10-01), Holstein
patent: 4170829 (1979-10-01), Nelle
Reibungsverminderung durch mechanische Schwingungen, by Von Wolfgang Weishaupt, from Technisches Messen atm 1976 Heft 11, pp. 345-348.

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