modified 2 weeks ago

Infrared X-Y Tracking System

00:46:47

The 4 photodiodes in parallel allow for greater sensitivity to infrared light then a single detector. 

The amplified voltages are minused to produce an error voltage that passes to another difference amplifier thats compared with a potentiometer output voltage to drive the positioning motor. 

The motor has a mechanically connected potentiometer to determine the motors position. The motor will rotate to the correct direction to ensure that both X or Y photodiodes have an equal reading, meaning the infrared signal is directly infront of the device. 

The circuit requires a dual power supply as well.

published 2 weeks ago

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