Length measuring system

Details Length measuring system Length measuring system

1983-11-14

1985-07-23

Little, Willis

Geometrical instruments

Area integrators

Electrical

33125C, 33125T, G01B 1104

Patent

active

045301573

ABSTRACT:
In an encapsulated length measuring system for measuring the relative position of two objects, a housing is provided which surrounds a measuring scale. The scale is mounted to the housing in such a manner that upon thermal length changes the scale is movable in the measuring direction substantially independently of the housing. The housing is mounted by means of a first fastening element at about its mid-point along the longitudinal measuring direction directly to the object to be measured. Both ends of the housing are mounted by means of further fastening elements to the object to be measured, in each case by means of a length compensating element which accommodates longitudinal translation in the measuring direction between the ends of the housing and the object to be measured.

REFERENCES:
patent: 4160328 (1979-07-01), Ernst
patent: 4170826 (1979-10-01), Holstein
patent: 4320578 (1982-03-01), Ernst
Wegmesssysteme fur grosse Werkzeugmaschinen, by Alfons Ernst, from Messtechnische Information, 8 Ausgabe Marz 1980.

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