Question
Download Solution PDFProximity sensors are used to _____.
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFExample:
- "Proximity Sensor" includes all sensors that perform non-contact detection.
- A proximity sensor often emits an electromagnetic field or a beam of electromagnetic radiation (infrared, for instance), and looks for changes in the field or return signal.
- There are various types of Proximity Sensor. These are Inductive sensor, Capacitive sensor, Ultrasonic sensor, Photoelectric sensor, and Magnetic Sensor.
- Inductive sensors are used to detect only metal objects.
- Capacitive sensors are used to detect both metallic and non-metallic objects.
- Ultrasonic sensors can detect objects in solid, liquid, or granular as well.
- Magnetic proximity sensors are proximity devices used to detect magnetic objects through their large sensing ranges.
- Proximity sensors detect objects directly in front of them by detecting the sensor’s own transmitted light reflected back from an object’s surface.
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