Question

What is the technology used in ir sensor in?

Answer 1

The Types of Infrared Sensors

Infrared sensors are broadly classified into two main types:

Thermal infrared sensors – use infrared energy as heat. Their photo sensitivity is independent of the wavelength being detected. Thermal detectors do not require cooling but do have slow response times and low detection capabilities. Read more about Thermal Infrared Sensors here.

Quantum infrared sensors – provide higher detection performance and faster response speed. Their photo sensitivity is dependent on wavelength. Quantum detectors have to be cooled in order to obtain accurate measurements.

Answer 2

Answer: Thermal Radiation

Explanation:IR sensor is an electronic device, that emits the light in order to sense some object of the surroundings. An IR sensor can measure the heat of an object as well as detects the motion. Usually, in the infrared spectrum, all the objects radiate some form of thermal radiation.