A NOTE ON THE DETERMINATION OF THE EXTINCTION COEFFICIENT OF AEROSOLS
作者:
G. O. Langstroth,
J. L. Wolfson,
期刊:
Canadian Journal of Research
(NRC Available online 1947)
卷期:
Volume 25a,
issue 1
页码: 62-67
ISSN:1923-4287
年代: 1947
DOI:10.1139/cjr47a-007
出版商: NRC Research Press
数据来源: NRC
摘要:
Difficulties were encountered in smoke chamber experiments in obtaining reliable extinction coefficient data by methods based on brightness measurements of bright and 'black' surfaces seen through the smoke. These difficulties led to an investigation of the reliability of a commonly used method employing a parallel light beam and a photoelectric cell. The results indicate that the method is capable of yielding extinction coefficient data with an accuracy of 1 to 2% under the conditions of our experiments.
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