thermometer

Also known as temperature sensor, 🌡

thumb|Mercury thermometer (mercury-in-glass thermometer) for measurement of room temperature.

AI overview

A thermometer is a device used to measure temperature, such as the air in a room. It matters because knowing temperature helps us stay comfortable, monitor health, and make decisions about heating and cooling our environments.

AI-generated from the Wikipedia summary — may contain errors.

Wikidata facts

Image: - Thermometer -.jpg

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Unicode character: 🌡
Commons category: Measuring instruments (temperature)
Commons gallery: Thermometer
WordLift URL: data.medicalrecords.com/medicalrecords/healthwise/thermometers
OpenStreetMap tag: weather:thermometer=yes

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~31 min read

Article

32 sections

Contents

A standard scale
History
Ancient developments
Philo of Byzantium
Hero of Alexandria
First temperature scale with a fixed point
Late Renaissance developments
Thermoscope
Air thermometer
Coining of ''thermometer''
Sealed liquid-in-glass thermometer
Early attempts at standardization
Precision thermometry
Registering
Physical principles of thermometry
Thermometric materials
Constant volume thermometry
Radiometric thermometry
Primary and secondary thermometers
Calibration
Precision, accuracy, and reproducibility
Indirect methods of temperature measurement
Applications
Nanothermometry
Cryometer
Medical
Food and food safety
Environmental
See also
References
Further reading
External links

thumb|Mercury thermometer (mercury-in-glass thermometer) for measurement of room temperature.

A thermometer is a device that measures temperature (the hotness or coldness of an object) or temperature gradient (the rates of change of temperature in space). A thermometer has two important elements: (1) a temperature sensor (e.g. the bulb of a mercury-in-glass thermometer or the pyrometric sensor in an infrared thermometer) in which some change occurs with a change in temperature; and (2) some means of converting this change into a numerical value (e.g. the visible scale that is marked on a mercury-in-glass thermometer or the digital readout on an infrared model). Thermometers are widely used in technology and industry to monitor processes, in meteorology, in medicine (medical thermometer), and in scientific research.