| 单词 | tyndallmeter |
| 释义 | > as lemmasˈTyndallmeter ˈTyndallmeter n. (also as two words; also Tyndaˈllometer) an instrument that makes use of the Tyndall effect for measuring aerosols and suspensions. ΘΚΠ the world > matter > gas > air > [noun] > air in any specific place or at specific time > measurement of specific quality of air > instruments for measuring specific qualities eudiometer1777 oximeter1803 ozonometer1851 ozonoscope1872 sepometer1876 koniscope1892 formenophone1894 konimeter1918 Tyndallmeter1919 1919 Tolman & Vliet in Jrnl. Amer. Chem. Soc. XLI. 297 (heading) A Tyndallmeter for the examination of disperse systems. 1937 Nature 25 Sept. 553/1 The hygienic importance of the reduction of dust lends interest to means for its measurement, and the Tyndallometer shown by E. Leitz (London) provides a new and rapid means of its measurement. 1957 H. C. van de Hulst Light Scattering by Small Particles xix. 405 This problem, of obvious importance in the testing of gas masks, was studied by Gucker and by O'Konski. A Tyndall meter is insufficient for the concentrations of 10−9g/liter and lower that have to be investigated. < as lemmas |
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