Title:
流動性の試料の中の個々の粒子を検出する方法及び装置
Document Type and Number:
Japanese Patent JP4805575
Kind Code:
B2
Abstract:
An apparatus and method are disclosed for the optical characterization of particles in highly concentrated systems (i.e. suspensions and dispersions, hereinafter referred to as the "sample"), such as solid-particle slurries and liquid-in-liquid (e.g. oil-in-water) emulsions, which do not require dilution of the samples. Reduction of the optical transparency of the sample, which is required to avoid the influence of multiple light scattering, is achieved by forming the sample into a sheet flow with controlled thickness. The sample transparency is measured by using a light extinction method and the sample thickness in the optical cell is controlled in order to keep the sample transparency within a range of predetermined values. By this means, an improved efficiency of single-particle detection is achieved and the usual reduction of signal quality due to multiple light scattering is avoided.
Inventors:
Mavliev, Rashid
Application Number:
JP2004519708A
Publication Date:
November 02, 2011
Filing Date:
July 01, 2003
Export Citation:
Assignee:
Mavliev, Rashid
International Classes:
G01N15/14; G01N15/02; G01N21/05; G01N21/49
Domestic Patent References:
| JP63269042A | ||||
| JP9196841A | ||||
| JP1110349U | ||||
| JP11037936A | ||||
| JP6281558A | ||||
| JP5034262A | ||||
| JP3105235A | ||||
| JP2003121338A | ||||
| JP7043237U | ||||
| JP62105030A |
Foreign References:
| US5311290 |
Attorney, Agent or Firm:
Yasunori Otsuka
Shiro Takayanagi
Yasuhiro Otsuka
Shuji Kimura
Osamu Shimoyama
Shiro Takayanagi
Yasuhiro Otsuka
Shuji Kimura
Osamu Shimoyama