# Temperature - Temperature Measurement

Temperature Measurement

See also: Timeline of temperature and pressure measurement technology, International Temperature Scale of 1990, and Comparison of temperature scales

Temperature measurement using modern scientific thermometers and temperature scales goes back at least as far as the early 18th century, when Gabriel Fahrenheit adapted a thermometer (switching to mercury) and a scale both developed by Ole Christensen Rømer. Fahrenheit's scale is still in use in the United States for non-scientific applications.

Temperature is measured with thermometers that may be calibrated to a variety of temperature scales. In most of the world (except for Belize, Myanmar, Liberia and the United States), the Celsius scale is used for most temperature measuring purposes. Most scientists measure temperature using the Celsius scale and thermodynamic temperature using the Kelvin scale, which is the Celsius scale offset so that its null point is 0K = −273.15°C, or absolute zero. Many engineering fields in the U.S., notably high-tech and US federal specifications (civil and military), also use the Kelvin and Celsius scales. Other engineering fields in the U.S. also rely upon the Rankine scale (a shifted Fahrenheit scale) when working in thermodynamic-related disciplines such as combustion.

### Other articles related to "temperature measurement, temperature":

Thermoelectricity - Applications - Temperature Measurement
... use the Seebeck effect to measure the temperature difference between two objects, one connected to a voltmeter and the other to the probe ... The temperature of the voltmeter, and hence that of the material being measured by the probe, can be measured separately using cold junction compensation techniques ...
Temperature Measurement - Comparison of Temperature Scales
... Comparison of temperature scales Comment Kelvin K Celsius °C Fahrenheit °F Rankine °Ra (°R) Delisle °D ¹ Newton °N Réaumur °R (°Ré, °Re) ¹ Rømer °Rø (°R) ¹ Absolute zero 0 −273.15 −459.6. 883 ... The surface of the Sun 10440 ... −8140 1 ... The temperature scale is in disuse, and of mere historical interest. 2 Normal human body temperature is 36.8 ±0.7 °C, or 98.2 ±1.3 °F ...

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