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PUMPA - SMART LEARNING
எங்கள் ஆசிரியர்களுடன் 1-ஆன்-1 ஆலோசனை நேரத்தைப் பெறுங்கள். டாப்பர் ஆவதற்கு நாங்கள் பயிற்சி அளிப்போம்
Book Free DemoDigital Thermometer:
Clinical thermometers have the practical challenge of disposal of mercury while they are broken down. Mercury is a toxic substance, so it is necessary to dispose of it correctly and safely. To overcome this situation, nowadays, Digital thermometers are used to measure the human body temperature in hospitals.
![shutterstock_597363305.jpg](https://resources.cdn.yaclass.in/f2e152a0-c9cc-4ee2-9757-2e99a906967f/shutterstock597363305w300.jpg)
Digital thermometer
Working:
Digital thermometers work on the principle that the electrical resistance of the material changes with temperature. Digital thermometers are different to conventional thermometers, such as liquid-filled and bimetallic thermometers, as they need a sensor. These sensors are producing resistance, current or voltage in reaction to a change in temperature. These changes are referred to as analogue output signals, and they are converted to digital to make them easy to visible.
Infrared thermometer:
Infrared thermometers are typically used to measure the temperatures that are necessary to be measured from a distance. They give accurate temperatures without ever having to touch the object you are measuring (and even if the object is in motion).
![shutterstock_1729350622.jpg](https://resources.cdn.yaclass.in/02a6f40e-0e95-44d5-8dd8-917a9de0f6be/shutterstock1729350622w300.jpg)
Infrared thermometers