跳至內容

萊頓溫標

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萊頓標度 (°L) 在20世紀初通過提供氦蒸氣壓的常規值來校準低溫間接測量值。

萊頓標度可在-183°C以下使用,這也是1930年代國際溫標的起點(Awbery 1934)。

參考資料

« The 1955 Leiden scale13 was used to convert helium vapor pressures into temperatures [...] (13) H. van Dijk and M. Durieux, in Progress in Low Temperature Physics II, edited by C. J. Gorter (North-Holland Publishing Company, Amsterdam, 1957), p. 461. In the region of calibration the 1955 Leiden scale, TL55, differs from the Clement scale, T55E, by less than 0.004 deg. » (emphasis added)
« The temperature scale used was the 1937 Leiden scale. » (emphasis added)
« It should be mentioned that below -183°C, the Leiden workers do not entirely agree with some of the other cryogenic laboratories, but use a scale of their own, generally known as the Leiden scale. » (emphasis added)