Linear encoder with plural detectors for use with one or more ma

Details Linear encoder with plural detectors for use with one or more ma Linear encoder with plural detectors for use with one or more ma

1989-08-31

1991-01-08

Shoop, Jr., William M.

Electricity: motive power systems

Positional servo systems

With particular 'error-detecting' means

318638, 341 10, 341 11, G05B 106

Patent

active

049839004

ABSTRACT:
A linear encoder has a plurality short main scales arranged separately in their longitudinal direction and plural sliders situated in parallel with the longitudinal direction so as to more along these main scales. In operation, data obtained through these sliders are joined and processed in a signal processor in order to get position data of a table. Consequently, any position along a long movement stroke of the table can be detected easily and at a low cost.

REFERENCES:
patent: 3090896 (1963-05-01), Bowden et al.
patent: 3427518 (1969-02-01), Cloup
patent: 4716292 (1987-12-01), Rieder et al.
patent: 4757244 (1988-07-01), Iwamoto et al.

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