ISRO | ISRO CS 2007 | Question 13
By using an eight bit optical encoder the degree of resolution that can be obtained is (approximately)
Explanation: A digital optical encoder is a device that converts motion into a sequence of digital pulses. It is a pulse generator that provides square-wave signals. The disc has 2 channels divided into “n” equal angular intervals where, n is called resolution or number of counts.
Resolution is defined as the smallest discernible quantity.
Resolution = 360/2n = 360/28 = 1.4o
Option (D) is correct.
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