What are Sensors
Sensors are faster than human inspectors, more objective, and work continuously
There are a number of ways to extract data from a production line. In factory automation, sensors are used in work cells to gather data for inspection or to trigger other devices. These sensors fall into multiple categories: photoelectric, fiber optic, proximity, ultrasonic, and vision are the most common.
In some cases, sensors provide simple measurement outputs, though they are not designed for precision and accuracy. Most sensors typically support several communications protocols in order to communicate with upstream and downstream equipment and notify systems whether a part is present or passes inspection.