The least complicated photoelectric sensors are called direct-scan sensors. Although they are harder to keep in alignment, they are used extensively.

Name: The least complicated photoelectric sensors are called direct-scan sensors. Although they are harder to keep in alignment, they are used extensively.
Brand: Quizplus
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Question

Quizplus · Accepted Answer

Direct-scan sensors are indeed simple photoelectric sensors that are commonly used, but they may require more maintenance to keep in alignment compared to other types of sensors.

The Least Complicated Photoelectric Sensors Are Called Direct-Scan Sensors