FIELD: measuring technique.
SUBSTANCE: detector can be used for measuring angular position of rotor of galvanometer scanners used for laser marking and engraving. Angular position optical detector has light emitting diode which illuminates slot diaphragm, objective with round diaphragm at entrance, flat-parallel plate connected tightly with object to me measured, two photodiodes with two photosensitive areas. Going-out currents of photodiodes are conversed into voltages and are subtracted by differential amplifier. Output voltage of differential amplifier is proportional to angular shift of flat-parallel plate which provides higher stability and linearity of conversion function of detector at its small sizes.
EFFECT: higher stability; small sizes.
5 cl, 4 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| GALVANOMETRIC SCANNER SENSOR | 2021 |
|
RU2767033C1 |
| REFRACTOMETRIC DETECTOR WITH LASER MODULE AND CHROMATOGRAPHIC CHANNEL IN NON-METAL DESIGN FOR LIQUID CHROMATOGRAPHY AND METHOD OF DETECTING ORGANIC AND INORGANIC SUBSTANCES WITH REFRACTOMETRIC DETECTOR | 2015 |
|
RU2589374C1 |
| OPTICAL-ELECTRONIC DEVICE WHICH MEASURES POSITION OF ANGLE METER DIAL | 1992 |
|
RU2082087C1 |
| METHOD OF DETERMINATION OF SHIP'S SPEED AND DEVICE FOR REALIZATION OF THIS METHOD | 2005 |
|
RU2293336C2 |
| ELECTRO-OPTIC WIDE-RANGE LINEAR SHIFTS METER | 1993 |
|
RU2069309C1 |
| SCANNING OPTRONIC ANGLE SENSOR | 0 |
|
SU1504503A1 |
| METHOD OF MEASURING SPEED OF MOTION OF SHIP RELATIVELY THE WATER SURFACE AND DEVICE FOR REALIZATION | 1991 |
|
RU2020520C1 |
| LASER GYROSCOPE WITH COMPENSATION OF COMPONENT INTRODUCED BY VIBRATING SUPPORT | 2015 |
|
RU2613043C1 |
| PHOTOELECTRIC METER OF ROTATING PART DISPLACEMENT | 0 |
|
SU1004752A1 |
| SEISMOMETRE | 2008 |
|
RU2386151C1 |
