Question

What is the difference between electrical comparator and mechanical comparator ?

Answer 1

A mechanical device is analogue and you must decide just where a finger pointer is indicating. They also have a mechanical magnifying mechanism inside them which suffers from friction and sticktion. With the electronic device there will be a digital readout to make thing simple. You can usually also set tolerances with the digitals and any out of specification components will be indicated.

Answer 2

Comparators are classified into various kinds, such as electronic,electrical, mechanical, optical, sigma, digital and pneumaticcomparators, these are used in various applications. ... Inelectronic circuits, an op-amp is used with negative feedback and it can also be used as acomparator.