Device for determining the displacement of a machine tool compon

Details Device for determining the displacement of a machine tool compon Device for determining the displacement of a machine tool compon

1975-03-10

1976-08-03

Stolwein, Walter

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

250209, 250237G, 356170, G01B 1104

Patent

active

039731197

ABSTRACT:
A device is described for determining the linear displacement of a machine tool component with the aid of a grating which is mechanically connected to the component, which grating is disposed in the light path between a light source and a light-sensitive element which converts the incident light into an electric signal. The light-sensitive element is a multiple photo-cell which consists of a row of line-shaped photo-diodes which by means of an electrical switch are consecutively connected to an electronic circuit which processes the signal which is produced in the photo-diodes.

REFERENCES:
patent: 3096441 (1963-07-01), Burkhardt
patent: 3330964 (1967-07-01), Hobrough et al.
patent: 3394248 (1968-07-01), Ogden
patent: 3578979 (1971-05-01), Kawaguchi
patent: 3600588 (1971-08-01), Sayce
patent: 3668404 (1972-06-01), Lehovec

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