DEVICE FOR DETERMINING POSITION OF LIGHT SPOT Russian patent published in 2010 - IPC G01B11/00 

FIELD: physics.

SUBSTANCE: device has a photodetector - multiskan with a set of counter-connected p-n junctions and divider and common buses, ground bus, optical system which forms a light spot on the surface of the multiskan from a radiation source, power supply of the device connected to the divider and ground buses, as well an external source of pulsed voltage and an electronic switch connected to the common bus of the multiskan, ground bus and said source of pulsed voltage. The voltage-voltage electric signal conversion unit is made in form of an operational amplifier made from a repeater circuit with high input resistance and is connected to the common bus of the multiskan and recording device.

EFFECT: more accurate determination while maintaining simple design of the device.

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