Tell me about proximity sensors & their types with working principals?

Question

Accepted Answer

Proximity sensors are devices that detect the presence or absence of an object within a certain range.

Proximity sensors use various technologies such as capacitive, inductive, ultrasonic, and optical to detect objects.
Capacitive proximity sensors detect objects by measuring changes in capacitance when an object enters the sensor's electric field.
Inductive proximity sensors use electromagnetic fields to detect metallic objects without physical contact.
Ultrasonic proximity sensors emit high-frequency sound waves and measure the time it takes for the waves to bounce back after hitting an object.
Optical proximity sensors use light beams to detect objects, and they can be either reflective or through-beam sensors.
Reflective optical sensors emit light and measure the amount of light reflected back from an object.
Through-beam optical sensors consist of a separate emitter and receiver, and they detect objects when the beam is interrupted.
Proximity sensors are commonly used in industrial automation, robotics, security systems, and touchless interfaces.

Accepted Answer

The substance can be detected with the help of proximity sensor.

Accepted Answer

inductive, capacitive, ultrasonic, and photoelectric sensors. Inductiv

Accepted Answer

Hi, it sense the metal part and produce a signal

Accepted Answer

Hi, it sense the metal part and produce a signal

Accepted Answer

Pnp npn there are 2 type

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