Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
PARTICLE ANALYZING METHOD AND PARTICLE ANALYZING DEVICE
Document Type and Number:
WIPO Patent Application WO/2014/141994
Kind Code:
A1
Abstract:
Provided are a particle analyzing method and a particle analyzing device capable of efficiently analyzing, in a suspension state, particle composition and mixture state. An air sample containing a particle to be analyzed is transported along a prescribed flow path, and analysis of the particle is performed, while the particle is suspended in a gas, in a plurality of analysis regions provided in the air sample flow path. At this time, in at least each of the analysis regions, the particles contained in the air sample are transferred in a beam, the particle beam is exposed to analysis light in each analysis region, a signal light issued from a particle exposed to the analysis light is detected by way of a light detection means, and the particle composition and characteristics are analyzed by combining the information based on the signal light detected by the light detection means in each analysis region. In the analysis, it is preferable that the particle composition and characteristics are analyzed by determining the uniformity of the particles passing through each analysis region and combining the information based on the signal light detected by the light detection means for identical particles passing through each analysis region.

Inventors:
TAKEGAWA NOBUYUKI (JP)
MIYAKAWA TAKUMA (JP)
TAKEDA NAOKI (JP)
TABARU MASAYA (JP)
KOIZUMI KAZUHIRO (JP)
HIRAYAMA NORITOMO (JP)
KANAYA YUGO (JP)
TAKETANI FUMIKAZU (JP)
Application Number:
PCT/JP2014/055748
Publication Date:
September 18, 2014
Filing Date:
March 06, 2014
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
UNIV TOKYO (JP)
FUJI ELECTRIC CO LTD (JP)
JAPAN AGENCY MARINE EARTH SCI (JP)
International Classes:
G01N15/14; G01N21/63; G01N21/64; G01N27/64
Domestic Patent References:
WO2011114587A12011-09-22
Foreign References:
JP2012189483A2012-10-04
JP2006071492A2006-03-16
JP2007533971A2007-11-22
JPH0611433A1994-01-21
JPH07151670A1995-06-16
JP2005156256A2005-06-16
JPH09184808A1997-07-15
JPH1137974A1999-02-12
JP2012516428A2012-07-19
JP2004144647A2004-05-20
JP2007309895A2007-11-29
Other References:
FUMIKAZU TAKETANI ET AL.: "Laser Yuki Keikoho o Mochiita Taiki Aerosol Ryushi no Sokutei", SYMPOSIUM ON AEROSOL SCIENCE AND TECHNOLOGY, vol. 28 TH, 27 August 2011 (2011-08-27), pages 97 - 98
WU JUNTAO ET AL.: "Reduction of PAH and soot in premixed ethylene-air flames by addition of ethanol", COMBUST FLAME, vol. 144, no. 4, March 2006 (2006-03-01), pages 675 - 687
AIZAWA T ET AL.: "2-D Imaging of Soot Formation Process in a Transient Spray Flame by Laser -induced Fluorescence and Incandescence Techniques.", SAE TECH PAP SER (SOC AUTOMOT ENG, 2002, pages 10P
IKEZAWA SATOSHI ET AL.: "Optical Analytical Technique for Carbonaceous Particles Using Laser -Induced Electro-Avalanche Fluorescence and Laser - Induced Incandescence", SENS MATER, vol. 25, no. 1, pages 57 - 77
IKEZAWA SATOSHI ET AL.: "Development of Carbonaceous Particle Size Analyzer Using Laser -induced Incandescence Technology", THE TRANSACTIONS OF THE INSTITUTE OF ELECTRICAL ENGINEERS OF JAPAN E, vol. 131, no. 5, 2011, pages 171 - 177
Attorney, Agent or Firm:
MATSUI Shigeru et al. (JP)
Shigeru Matsui (JP)
Download PDF: