LOGICAL SENSOR

Where might a proximity sensor be used?

• A Car

• A House

• A Shop

• A Green House

Which type of material can be sensed by inductive proximity sensor?

• Wooden type

• Metallic type

• Plastic type

• Glass type

A proximity sensor requires physical contact.

• False

• True

Which sensor can detect nearby objects?

• Proximity sensor

• Humidity sensor

• Touch sensor

• Pressure sensor

State the function of the Proximity Sensor

• is a sensor able to detect the presence of nearby objects without any physical contact.

• is a sensor used to detect the distance, absence or presence of an object by using a beam

State the function of the Photo Optics Sensor

• is a sensor able to detect the presence of nearby objects without any physical contact.

• is a sensor used to detect the distance, absence or presence of an object by using a beam

The sensor contain both emitter and receiver in same housing. A mirror needed at the other side to reflect the light back to receiver.

• Diffuse Reflective Sensor

• Retro Reflective Sensor

• Through Beam

A light beam is sent from emitter to receiver. The object is detected if it blocks the path of the beam.

• Diffuse Reflective Sensor

• Retro Reflective Sensor

• Through Beam

State THREE (3) types of Optical Sensor

• Diffuse Reflective Sensor

• Through Beam

• Retro Reflective Sensor

• Ultrasonic Sensor

To detect metal object and non metal object.

• Capacitive Proximity Sensor

• Inductive Proximity Sensor