Development of carbonaceous particle size analyzer using laser-induced incandescence technology

Satoshi Ikezawa, Muneaki Wakamatsu, Yury L vovich Zimin, Joanna Pawlat, Toshitsugu Ueda

    Research output: Contribution to journalArticle

    3 Citations (Scopus)

    Abstract

    This paper presents a new sensing system for carbonaceous nanoparticle measurement using a laser-induced incandescence (LII) technique. Our research group has improved the laser-induced breakdown spectroscopy (LIBS) system used for quantitative analysis. Although the basic principles of LIBS quantitative measurements are well understood, several uncertainties remain concerning complete descriptions-especially for particle size measurement. The elemental composition and density of the particles are determined using LIBS, and particle size measurements are accomplished with the help of LII. In the case of the present system, with temporally resolved LII, measurement of soot primary particle sizes is feasible in a combustion process derived from the ratio of emission signals after a laser pulse because the cooling behaviour is characteristic of the particle size. The LII temporal analysis was performed by a streak camera, which was also used for LIBS analysis. The LII technique allows in situ measurement of the average primary particle size of nanoscale soot particles.

    Original languageEnglish
    Pages (from-to)171-177
    Number of pages7
    JournalIEEJ Transactions on Sensors and Micromachines
    Volume131
    Issue number5
    DOIs
    Publication statusPublished - 2011

    Keywords

    • LII
    • Nanoparticle
    • Particle measurement

    ASJC Scopus subject areas

    • Electrical and Electronic Engineering
    • Mechanical Engineering

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