FIELD: instrument making.
SUBSTANCE: apparatus for selecting signals according to frequency comprises serially optically-connected laser, collimator, an acoustooptic modulator (AOM) of light, a first integrating lens and a spatial filter, as well as second integrating lens and a line of photodiodes. Electric input of modulator is input of device. Between spatial filter and second integrating lens in ±1 diffraction orders are optical transparency filters.
EFFECT: technical result consists in reduction of distortions of output signals.
1 cl, 1 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| APPARATUS FOR SELECTING SIGNALS ACCORDING TO FREQUENCY | 2012 |
|
RU2498413C1 |
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| ACOUSTOOPTICAL RECEIVER-FREQUENCY METER | 2000 |
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| ACOUSTOPTICAL SPECTRUM ANALYSER OF RADIO SIGNALS | 0 |
|
SU1216741A1 |
| HIGH-ACCURACY ACOUSTOOPTIC FREQUENCY METER/DETECTOR | 1999 |
|
RU2149510C1 |
