A scale of temperature measurement in which zero degrees is absolute zero.



Related Terms

ABSOLUTE TEMPERATURE

The fundamental temperature scale with its zero at absolute zero and expressed in degrees Kelvin. One degree Kelvin is equal to one degree Celsius or one degree Centigrade. For the purpose of practical calculations in order to convert Celsius to Kelvin add 273. It is normal for the degree Kelvin to be abbreviated in mathematical formulae to ‘K’ with the degree symbol being omitted.

CONVERSION SCALE

A scale for the conversion of units of one measurement to equivalent units of another measurement.

DALTON'S TEMPERATURE SCALE

A scale for measuring temperature such that the absolute temperature T is given in terms of the temperature on the Dalton scale by T 273.15(373.15/273.15)/100.

CURLE SCALE OF TEMPERATURE

A temperature scale based on the susceptibility of a paramagnetic substance, assuming that it obeys Curie's law; used at temperatures below about 1 kelvin.

CELSIUS TEMPERATURE SCALE

Temperature scale of 0o (freezing water) to 100o (boiling water). Celsius = (Fahrenheit - 32) x 5/9.

API SCALE

The American Petroleum Institute hydrometer scale for the measurement of the specific gravity of liquids; used primarily in the American petroleum industry.

MONOCHROMATIC TEMPERATURE SCALE

A temperature scale based upon the amount of power radiated from a blackbody at a single wavelength.

FAHRENHEIT TEMPERATURE

Temperature based on a scale in which, under standard atmospheric pressure

GRATICULE

  1. The network of lines representing parallels and meridians on a map, chart, or plotting sheet. A fictitious graticule represents fictitious parallels and fictitious meridians. 2. A scale at the focal plane of an optical instrument to aid in the measurement of objects.

KELVIN SCALE

The basic scale used for temperature definition; the triple point of water (comprising ice, liquid, and vapor) is defined as 273.16 K; given two reservoirs, a reversible heat engine is built operating in a cycle between them, and the ratio of their temperatures is defined to be equal to the ratio of the heats transferred.

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