8. Photoelectric sensor
Wiring method of the sensor: The red ring connects to DC24V, the black ring connects to DC0V, and the blue ring is the output end. When the sensor senses the signal, the point outputs the signal (the signal level depends on the sensor category, NPN type outputs DC0V, PNP type outputs DC24V). When in use, pay attention to the correctness of the wiring to prevent damage to the components, especially the short-circuit phenomenon at the output end is particularly serious.
Photoelectric sensors detect objects that reflect enough light sources for them to sense. The detection range is generally about 6CM. Because of this feature, we can use the intensity of the reflection of different colors to adjust the distance, which can indirectly achieve the detection of color.
9. Inductive sensor
Wiring method of the sensor: The red ring connects to DC24V, the black ring connects to DC0V, and the blue ring is the output end. When the sensor senses the signal, the point outputs the signal (the signal level depends on the sensor category, NPN type outputs DC0V, PNP type outputs DC24V). When in use, pay attention to the correctness of the wiring to prevent damage to the components, especially the short-circuit phenomenon at the output end is particularly serious.
Inductive sensors are used to detect metal substances, and the detection range is generally about 1CM. Compared with the above two sensors, it is relatively stable and will not be interfered with by some other items and produce false signals, because it has a short detection distance and is only effective for metal items.
10. Gas-electric converter
As the name suggests, the component converts the pneumatic signal into an electrical signal, and the mechanical action occurs inside the component through the air supply end, and the original normally open contact becomes a normally closed contact. It is usually strung in a circuit to act as a control signal.
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