并联差分激光光声装置测量柴油机排放碳粒浓度

Measurements of Carbon Particle Concentrations in Diesel Engine Exhaust Using Laser Photoacoustic Parallel Differential Set-Up

叙述了并联差分激光光声装置测量柴油机排放碳粒浓度的基本原理和设计考虑。由此建立的装置测量了S195柴油机在不同工况下排放碳粒的浓度，并和Bosch烟度计的测量结果作出了比较。

The working principle and design considerations of the laser photoacoustic parallel differential set-up used to measure carbon particle concentrations in diesel engine exhaust are described. The carbon particle concentrations emitted by model S195 diesel engine under different operating conditions are measured by the established set-up and compared with the results measured by Bosch smoke meter.