PROXIMITY SENSORS

PROXIMITY SENSORS

By Franklin Bosi

Multiple Choice

Type of sensor used to detect both metallic and non-metallic objects

• Capacitive sensors

• Inductive sensors

• Thermocouple sensors

• None of the above

Multiple Choice

Which Proximity Sensor is used to detect metal devices only?

• Diffuse – reflective

• Capacitive

• Inductive

• Retro - reflective

Multiple Choice

Optical sensors with separate receiver and emitter.

• Retro – reflective

• Through – beam

• Diffuse – reflective

• Inductive

Multiple Choice

Sensors that can directly detect objects are called

• Retro - reflective

• Through – beam

• Diffuse – reflective

• Inductive

Multiple Choice

Which of the following devices is a digital input device.

• Encoder

• TC

• RTD

• Photoelectric Sensor