OPTOELECTRONIC CONVERTER OF POSITION-CODE TYPE Russian patent published in 2005 - IPC

Abstract RU 2248093 C1

FIELD: electronic engineering.

SUBSTANCE: device has coordinate scale having raster and code path of which the first one is represented as a chain of windows forming regular raster and the second one is represented as a chain of code windows, reading unit having illumination unit, analyzing raster mask, raster path photodetectors, and multi-element raster path photodetector. The raster path photodetectors, and multi-element raster path photodetector are connected to recording and analyzing unit, respectively. The reading unit has analyzing code mask being two window paths arranged so that succession period is a multiple of code step and window width is equal to the code step. The windows on the paths are shifted by a value equal to half code step.

EFFECT: eliminated ambiguity in reading coordinate code; high performance and accuracy.

3 cl, 6 dwg

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RU 2 248 093 C1

Authors

Velikotnyj M.A.

Zobnin A.B.

Poljakov V.I.

Dates

2005-03-10Published

2003-07-04Filed