___________ are similar to photo eyes except that they emit and receive sound instead of light.
A) Sourcing signals
B) Sinking signals
C) Optical isolation
D) Ultrasonic sensors

Name: ___________ are similar to photo eyes except that they emit and receive sound instead of light. A) Sourcing signals B) Sinking signals C) Optical isolation D) Ultrasonic sensors
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Question

Quizplus · Accepted Answer

Ultrasonic sensors are similar to photo eyes but use sound waves instead of light to detect objects.

___________ Are Similar to Photo Eyes Except That They Emit