Linear encoder and a guide unit on which it is equipped

Details Linear encoder and a guide unit on which it is equipped Linear encoder and a guide unit on which it is equipped

1995-06-07

1997-02-25

Strecker, Gerard R.

Electricity: measuring and testing

Magnetic

Displacement

310 12, 318135, 32420724, 341 15, G01B 714, G01B 700, H02K 4102

Patent

active

056062567

ABSTRACT:
The present invention relates to a linear encoder that does not require the connection cable to be pulled around and has a simple constitution, while also contributing to smooth operation of the moving side as well as reduced size of the apparatus. In addition, the present invention also relates to a guide wherein a guiding device composed of a track rail and so forth is added to the linear encoder. In addition to arranging a plurality of detecting elements composed of electromagnetic conversion elements and so forth at prescribed intervals along the direction of relative motion on the stationary side, a detected element composed of a permanent magnet is arranged so as to oppose the above-mentioned detecting elements on the moving side, thus obtaining the above-mentioned effects.

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patent: 5229669 (1993-07-01), Takei
patent: 5302893 (1994-04-01), Yoshimura
patent: 5416396 (1995-05-01), Takei
Uemura, Saburo; Metrology Sony Magnescale, Japan Electronic Engineering, Nov. 1969, pp. 20-23.

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