OPTOACOUSTIC MEASUREMENTS OF DIESEL PARTICULATE-EMISSIONS

被引:22
作者
FAXVOG, FR
ROESSLER, DM
机构
[1] Physics Department, General Motors Research Laboratories, Warren
关键词
D O I
10.1063/1.325978
中图分类号
O59 [应用物理学];
学科分类号
摘要
Infrared absorption by acetylene and diesel smoke particles was measured using a differential optoacoustic cell driven by a 3.4-W CO2 laser. Real-time particle mass concentration measurements are demonstrated. In addition we found the average particle extinction cross sections per unit mass of acetylene and diesel smoke were 0.94±0.1 m2/g and 0.83±0.2 m2/g, respectively, at the 10.6-μm wavelength.
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页码:7880 / 7882
页数:3
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