A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Apparatus for recording general atmospheric dust; full-scale range of present model of approximately 120×106 particles per cu ft of air may be increased or decreased as desired; dust concentrations measured are far below smoke concentrations; method is to impinge dust on slowly moving strip of transparent film, and to measure deposit by comparison of two beams of light. (French translation) (See also Franklin Inst -- J v 217 n 5 May 1934 p 571-90)
Apparatus for recording general atmospheric dust; full-scale range of present model of approximately 120×106 particles per cu ft of air may be increased or decreased as desired; dust concentrations measured are far below smoke concentrations; method is to impinge dust on slowly moving strip of transparent film, and to measure deposit by comparison of two beams of light. (French translation) (See also Franklin Inst -- J v 217 n 5 May 1934 p 571-90)
Atmospheric dust recorder
Genie Civil
Hazard, W.G. (author)
Genie Civil ; 105
1934
Bibliography
Article (Journal)
French
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| Engineering Index Backfile | 1932
| ASCE | 2021
| Engineering Index Backfile | 1961