摘要
本文对颗粒物的测试方法的发展情况进行了分析,阐述了传统的重量法的优点以及所面临的挑战。并说明了通过改进重量法的测试技术,可以满足未来法规的测试要求。另外,由于微粒对健康的影响程度与微粒的大小和浓度有关,因此对新的测试技术也正在进行研究,目的在于评价发动机微粒的粒径大小和数量,但如何规定和科学测量微粒的数量或大小还值得深入研究。
This paper studies the developing trend of particulate measurement methods of vehicle engines. It states the merit of traditional gravity method and the facing challenge of this method. The gravity method could meet the requirement of the future emission test regulation by improving test technologies. Since the effect degree to human health of emission particles is related to the particle diameter and concentration, new particle test technology is being studied in order to evaluate diameter and number of exhaust particle from engines. But how to measure particle diameter, surface area and number scientifically deserve studying further.
出处
《小型内燃机与摩托车》
CAS
北大核心
2005年第2期43-46,共4页
Small Internal Combustion Engine and Motorcycle
