Title:
How to obtain characteristic parameters of aerosols based on two-wavelength scattered light signals and their use
Document Type and Number:
Japanese Patent JP6315641
Kind Code:
B2
Abstract:
The present invention relates to a method of sensing aerosol characteristic parameters using dual-wavelength light scattered signals and the application thereof, and belongs to the technical field of fire warning. The method procedures include measuring the scattered light power of two different wavelengths, calculating the surface area concentration and the volume concentration of aerosol, and obtaining the Sauter mean diameter of the aerosol the surface area concentration, the volume concentration and the aerosol Sauter mean diameter are compared with corresponding thresholds, and then corresponding fire alarm signals are emitted. By the adoption of the method, on one hand, the particle size of an aerosol can be judged according to the Sauter mean diameter, so that whether a fire really occurs can be identified in time and a fire alarm signal or a non-fire factor interference prompt signal can be emitted timely and correctly; and on the other hand, the characteristic parameters of the aerosol can be obtained by the surface area concentration and the volume concentration of the aerosol, so that a fire type alarm signal can be judged and emitted to allow targeted and rational measures to be taken.
Inventors:
Royal
den field
Conquest
den field
Conquest
Application Number:
JP2017516754A
Publication Date:
April 25, 2018
Filing Date:
June 23, 2015
Export Citation:
Assignee:
Huazhong University of Science and Technology
International Classes:
G01N21/53; G08B17/107
Domestic Patent References:
| JP10500041A | ||||
| JP2009210584A | ||||
| JP2007509327A | ||||
| JP11339157A | ||||
| JP2005049228A |
Foreign References:
| WO2009062256A1 | ||||
| WO2011002272A1 |
Other References:
Application of a Diffusion Charger for the Measurement of Particle Surface Concentration in Different Environments,Aerosol Science and Technology,米国,American Association for Aerosol Research,2007年 5月16日,Vol. 41, Issue 6,pp. 571-580,doi: 10.1080/02786820701272020
Attorney, Agent or Firm:
Kimura Mitsuru
Takanori Mamoru
Taiji Morikawa
Kei Sakurada
Mie Hideki
Takanori Mamoru
Taiji Morikawa
Kei Sakurada
Mie Hideki