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
Title | Year | Author | Number |
---|---|---|---|
0 |
|
SU340330A1 | |
PHOTOELECTRIC RASTER ANGULAR DISPLACEMENT SENSOR | 0 |
|
SU765650A1 |
CODE SCALE | 2014 |
|
RU2560782C1 |
DIGITAL-TO-DISPLACEMENT LIGHT-ELECTRICITY TRANSDUCER | 0 |
|
SU1676102A1 |
PHOTOELECTRIC MEASURING CONVERTER OF DISPLACEMENTS | 0 |
|
SU1044967A1 |
CIRCULAR MOTION CONVERTER | 1990 |
|
RU2057287C1 |
0 |
|
SU326570A1 | |
0 |
|
SU1780190A1 | |
CONVERTER WITH ELECTROOPTIC REDUCTION | 0 |
|
SU966722A1 |
CODE SCALE | 2012 |
|
RU2490790C1 |
Authors
Dates
2005-03-10—Published
2003-07-04—Filed