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Low-Cost Temperature Gun
April 5 , 2020
2035 days
1420
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- The Mumbai Naval Dockyard has designed a low-cost IR based temperature sensor.
- The sensor is to be used to check the personnel entering at the gates of the yard.
- The instrument was manufactured at less than Rs 1000.
Working mechanism
- The accuracy of the temperature gun is 0.2 degree Celsius.
- The temperature gun has a LED display and an infrared sensor.
- The IR thermometer uses lens to focus infrared light.
- It works on a principle called Black body radiation.
- Any object at temperature above 0 degree Celsius has molecules moving around.
- The speed of the molecules increases with increase in temperature.
- As they move, these molecules emit IR rays.
- The IR thermometer has a detector that concentrates these IR rays from the hot body.
- If the rays are more, the detector generates higher current.
- Higher the current, higher is the temperature of the body.
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