Consider an incremental encoder with 3000 lines/rev resolution and a decoder which uses 4 decoding logic. Then the resolution of the encoder is 10,000 counts/rev. Assume that the photodetectors in the decoder circuit can handle A and B channel signals up to 1.5 MHz frequency. Determine the maximum speed of the encoder. (20 points)
Light Source A B
Assembly Photo Grid Detectors
Squaring Circuitry
Encoder
Photo Detectors Output
Squaring Circuitry Output
B
Sine Wave
Disk