New Techniques for Measurement of Particulate Emission from Advanced Vehicles 2003-26-0005

In order to develop the engines that emit only small amount of Particulate Matter (PM), there are various demands for measurement techniques for PM, such as real-time measurement, low-mass measurement, and analysis in short time. This paper reviews two kinds of instruments that have been newly introduced for PM measurement. One is the real-time PM analyzer applying two Flame Ionization Detectors (FID). This method utilizes an area accumulation technique for spike-shaped signals that are observed when soot particles are fed into a FID detector. And Soluble Organic Fraction (SOF) can be calculated continuously from difference of signals of two detectors. Another is the low-mass PM analyzer based on process of vaporization, oxidization and deoxidization. The performances of these two measurement techniques are described in this paper, using model samples and actual particulate.