FIELD: measuring technology.
SUBSTANCE: invention relates to a photodetector. The photodetector comprises a photodiode, the first and second operational amplifiers, a switch, a control unit, an analog adder and an output unit. One photodiode electrode is connected to the inputs of the first and second keys of the switch, the other electrode of the photodiode is connected to the inputs of the third and fourth keys of the switch. The outputs of the first and third keys are connected to the inverting input of the first operational amplifier, the outputs of the second and fourth keys are connected to the inverting input of the second operational amplifier. The control inputs of the first and fourth keys are connected to the first output of the control unit, the second output of which is connected to the control inputs of the second and third keys of the switch. The outputs of the operational amplifiers are connected to the output of the photodetector through an analogue adder and an output unit. The third and fourth outputs of the control unit are connected to the output unit.
EFFECT: increased accuracy of recording light fluxes.
1 cl, 1 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| A LIGHT BEAM DEVIOMETER | 0 |
|
SU1689764A1 |
| PHOTORECEIVER | 0 |
|
SU1288508A1 |
| DEVICE FOR MONITORING DATA TRACK OF OPTICAL RECORDING MEDIUM | 0 |
|
SU1638724A1 |
| CONVERTER OF OPTICAL RADIATION TO WIDTH OF VOLTAGE PULSES | 2016 |
|
RU2627196C1 |
| 0 |
|
SU1784844A1 | |
| PHOTODETECTOR DEVICE | 0 |
|
SU1323864A1 |
| PHOTODETECTOR DEVICE | 0 |
|
SU1349671A1 |
| DISCRETE-ANALOG FILTER | 0 |
|
SU1343549A1 |
| ANALOGUE-DIGITAL TRANSDUCER | 2007 |
|
RU2359403C1 |
| DEVICE FOR MULTIPLYING ELECTRICAL SIGNALS TOGETHER | 0 |
|
SU1242991A1 |
