Development of a laser induced incandescence high vacuum system for the measurement of soot or nanoparticulate, size, mass and morphology.

开发激光诱导白炽高真空系统，用于测量烟灰或纳米颗粒的尺寸、质量和形态。

• 批准号: EP/E029787/1
• 负责人: Doug Greenhalgh
• 金额: $ 62万
• 依托单位: CRANFIELD UNIVERSITY
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2007
• 资助国家: 英国
• 起止时间: 2007 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=EP%2FE029787%2F1
• 关键词: Development; laser; induced; incandescence; vacuum

There is correctly considerable concern about the particulate burden in the atmosphere, the sources of these particulates and there properties since may have been linked to health effects. This project is aimed at undertaking research to develop a new type of instrument which has unique capabilities to measure and characterise atmospheric aerosols and in particular their sources such as diesel engines.The new instrument works by aspirating particles into a vacuum where they are heated by a pulse of laser light and their subsequent glow or incandescence is measured. Previous research by the group has established that particles treated in such a way can be characterised in terms of their mass, their morphology in terms of the nano spheres of carbon which form the particle and their optical properties.This research will lead to a new instrument to be called an aerosol beam laser induced incandescence (AB-LII) system which will have unique capabilities in terms of sensitivity and particle characterisation. The instrument is then expected to be deployed for the measurement and characterisation of carbon nanoparticulates or soot from a variety of sources and especially diesel engines.The instrument also has the potential to characterise a wide variety of other nano particulates such as metals and ceramics which have a wide range of commercial applications.

人们对大气中的颗粒物负担、这些颗粒物的来源以及可能与健康影响有关的特性非常关注。该项目旨在进行研究，以开发一种新型仪器，这种仪器具有独特的能力，可以测量和分析大气中的悬浮微粒，特别是其来源，如柴油发动机，这种新型仪器的工作原理是将颗粒吸入真空，在真空中用激光脉冲加热颗粒，然后测量其发光或白炽度。该小组先前的研究已经确定，以这种方式处理的颗粒可以根据其质量、形成颗粒的碳纳米球的形态及其光学特性来表征。这项研究将导致一种称为气溶胶束激光诱导白炽（AB-LII）系统的新仪器，该系统将在灵敏度和颗粒表征方面具有独特的能力。该仪器有望用于测量和表征各种来源的碳纳米颗粒或碳烟，特别是柴油发动机。该仪器还具有潜在的测量各种其他纳米颗粒，如金属和陶瓷，具有广泛的商业应用。