Robotics Sensors and Actuators

Which of the following sensors is primarily used to detect the presence of an object without physical contact, often utilizing infrared radiation to measure proximity?
(i) Tactile sensor
(ii) Photodiode
(iii) Collision sensor
(iv) IR proximity sensor

A Sensor is a:
(i) Subsystem
(ii) Module
(iii) Machine
(iv) All the above

Which of the following is considered as input to a sensor?
(i) Microcontroller
(ii) Passive IR sensor
(iii) Processor
(iv) Drivers

An IR sensor that only detects IR radiation but does not emit is called:
(i) Active IR sensor
(ii) Passive IR sensor
(iii) Both a and b
(iv) Resistive IR sensor

What is a Tactile Sensor? How it Works? Write its Types, Advantages, Disadvantages & Applications.

What is a Proximity Sensor? How it Works? Write its Types, Advantages, Disadvantages & Applications.

Write short note on: Interaction sensors