出典:Wiktionary
dilatometer (複数形 dilatometers)
出典:Wikipedia
出典:『Wikipedia』 (2011/07/16 08:20 UTC 版)
A dilatometer is a scientific instrument that measures volume changes caused by a physical or chemical process. A familiar application of a dilatometer is the mercury-in-glass thermometer, in which the change in volume of the liquid column is read from a graduated scale. Because mercury has a fairly constant rate of expansion over normal temperature ranges, the volume changes are directly related to temperature.
a geometer
katydids
an instrument used as a gauge
avadavats