| 释义 |
koniscope|ˈkɒnɪskəʊp|
[f. Gr. κόνις dust + -scope.]
An instrument for estimating the concentration of dust in the air by observing the depth of colour in a sample of the air when it is expanded into a tube with glass ends and containing moist paper to saturate it with water vapour.
1892J. Aitken in Proc. R. Soc. LI. 435 This new instrument we intend to call a Koniscope. In its present form this instrument consists of an air-pump and a metal tube with glass ends. 1905Westm. Gaz. 26 Aug. 13/1 Dr. Aitken has invented a very simple instrument for this purpose, which he calls the koniscope, or dust detective. 1925Shaw & Owens Smoke Probl. Gt. Cities viii. 145 Condensation of water on the dust particles is utilised in Aitken's..koniscope; a fog is produced and compared with a standard. |