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Ultrasensitive quantum thermometer
Why is it in news?
- Recently, researchers at Jamia Millia Islamia, New Delhi, have developed an ultrasensitive quantum thermometer using graphene quantum dots.
More in news
- Measurement of wide range of temperature: The thermometer can precisely measure a wide range of temperature: 27 degree C to -196 degree C.
- High sensitivity:(1) The thermometer has high sensitivity when measuring different temperatures and can measure very minute (micro Kelvin) changes in temperature.(2) The thermometer showed extremely quick response time of just about 300 milliseconds to register a change in temperature from 27 degree C to –196 degree C.(3) Also the time taken to return to its initial temperature value was as little as about 800 milliseconds.
- Excellent repeatability: The thermometer showed excellent repeatability with negligible variation in sensing response when tested for over 50 cycles during a one-year period.
- Widespread applications: Cryogenic temperature sensing- like in the pharmaceutical industry, healthcare to measure the incubation temperature of biological cells and molecules and the automobile industry to measure the ignition temperature within the engine.
Source
The Hindu