Method and device for detecting aerosol particles

一种悬浮微粒、微粒的技术，应用在测量装置、悬浮液和多孔材料分析、颗粒悬浮分析等方向，能够解决结果难等问题

Active Publication Date: 2012-11-28
AIRMODUS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, for the smallest particles, the possible consequences of this charging are very difficult to determine

Method used

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  • Method and device for detecting aerosol particles
  • Method and device for detecting aerosol particles
  • Method and device for detecting aerosol particles

Examples

Experimental program
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Embodiment Construction

[0035] figure 1 An exemplary device or apparatus 100 for growing and detecting aerosols according to an advantageous embodiment of the present invention is illustrated, wherein the device 100 comprises a saturator 101 for saturating a stream 107 free of particles with a concentrated medium, A sample inlet 102 for providing a smoke stream 108 comprising aerosols into the detection device 100 , and a concentrating chamber 104 in which a concentrating medium is adapted to concentrate onto the aerosols 108 . According to one embodiment, the particulate-free stream 107 is, for example, filtered clean air introduced to the saturator through a clean air inlet.

[0036] According to one embodiment, the saturator 101 comprises a sintered tube 109, such as a sintered stainless steel tube surrounded by a concentrated medium, such as diethylene glycol (DEG) within a housing. The housing is advantageously made of metal, such as aluminium, but may also be any other suitable metal, such as ...

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Abstract

Sizes or size distribution of aerosol particles of an aerosol gas stream is detected. A particle-free carrier flow is saturated in a saturated or (101) by a first condensing medium, where after the carrier flow(107) is mixed in a mixing section (103) turbulently with aerosol particle flow (108). Advantageously plurality of separate mixtures with different saturation ratios are provided and introduced to the first condensing environment (104) in order to condensate the condensing medium onto the aerosol particles. Depending of the saturation ratio the particles with different lowest original size are activated and growth in a growing section (104A) and / or in the condensing environment (104). After activation and growing the particles are detected by a detecting means(110).

Description

technical field [0001] The present invention relates generally to the detection of very small particles of aerosols, and more particularly, to the detection of aerosols having different sizes. In particular, the invention relates to the detection of aerosols whose size is smaller than an optically detectable size and furthermore the size and size distribution of aerosols. Background technique [0002] Aerosols are present, for example, in the air we breathe, which can have adverse effects on human health. Furthermore, air inhalers produce different kinds of aerosols with different sizes, also giving rise to nanotechnology, where the presence and size distribution of aerosols is an object of concern. Furthermore, the detection of aerosols, such as their generation and size, is essential in e.g. climate research and monitoring of exhaust gases and refinement of emission standards, [0003] One obstacle in detecting aerosols with diameters smaller than the wavelength of light...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N15/02G01N15/06G01N21/00
CPCG01N15/06G01N15/02G01N2015/0038
Inventor J.范哈南M.库尔马拉J.米基拉E.希伊沃拉M.西皮拉
Owner AIRMODUS
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