Interactive multiaxis encoder positioning system

Details Interactive multiaxis encoder positioning system Interactive multiaxis encoder positioning system

1987-06-04

1988-09-20

Ro, Bentsu

Electricity: motive power systems

Positional servo systems

With particular 'error-detecting' means

318575, 318653, G12B 100, G05B 106

Patent

active

047728353

ABSTRACT:
An interactive multiaxis encoder positioning system is provided for positioning a tool or a work piece to a degree of accuracy which is only limited by the encoder system and not the mechanical guides, slides and bearings of prior art systems. A highly precise and accurate multiaxis scale comprising a plurality of sets of grading indicia is made under accurate manufacturing conditions. The multiaxis scale is attached to a fixed or a moving part of the machine or apparatus and is positioned juxtaposed encoder means to provide relative movement to the grating scale means. Thus, the accuracy of positioning a tool or work holder is determined by the accuracy of the encoder and not by the accuracy of the mechanical positioning guides, slides and bearings.

REFERENCES:
patent: 4654571 (1987-03-01), Hinds
D. J. Lasky, "Split Optics Alignment Apparatus", IBM Technical Disclosure Bulletin, vol. 11, No. 7, Dec. 1968, pp. 798-799.
B. R. Brown, "Optical Light Pen System", IBM Technical Disclosure Bulletin, vol. 12, No. 12, May 1970, p. 2286.
H. M. Sierra "Information Storage and Retrieval", IBM Technical Disclosure Bulletin, vol. 13, No. 6, Nov. 1970, pp. 1638-1640.
Palmer et al., "Optical Tachometer", IBM Technical Disclosure Bulletin, vol. 16, No. 4, Sep. 1973, pp. 1214-1217.

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