Apparatus and method for using light scattering to determine the

Details Apparatus and method for using light scattering to determine the Apparatus and method for using light scattering to determine the

1993-05-26

1999-01-12

Pham, Hoa Q.

Optics: measuring and testing

For size of particles

By particle light scattering

356338, G01N 1502

Patent

active

058597050

ABSTRACT:
An apparatus and method are disclosed which allow the size of a particle suspended in a medium to be determined virtually independent of the materials'refractive index. The apparatus includes a light source, a sample holder, a detector and a spatial filter. The method of the invention comprises passing the medium containing the particle through a beam of collimated light so that the light which contacts the particle will be scattered; deterring the light which was scattered by the particles from being detected, detecting the light which was not scattered by the particle; and determining the size of the particle from the decrease in the light intensity incident on the detector.

REFERENCES:
patent: 3695765 (1972-10-01), Bol et al.
patent: 3710933 (1973-01-01), Fulwyler et al.
patent: 4139303 (1979-02-01), Carlson et al.
patent: 4178103 (1979-12-01), Wallace
patent: 4260258 (1981-04-01), Rose et al.
patent: 4329052 (1982-05-01), Colombo et al.
patent: 4329053 (1982-05-01), Fymat
patent: 4361403 (1982-11-01), Loos
patent: 4457624 (1984-07-01), Goldberg et al.
patent: 4497577 (1985-02-01), Sato et al.
patent: 4529309 (1985-07-01), Pettersson et al.
patent: 4540283 (1985-09-01), Bachalo
patent: 4735504 (1988-04-01), Tycko
patent: 4771181 (1988-09-01), Hayashi
patent: 4776697 (1988-10-01), Kamrat
patent: 4842406 (1989-06-01), VonBargen
patent: 4893929 (1990-01-01), Miyamoto
patent: 4940326 (1990-07-01), Tatsuno
patent: 4953978 (1990-09-01), Bott et al.
patent: 4983040 (1991-01-01), Chu et al.
patent: 5090808 (1992-02-01), Ishikawa et al.

Affiliated with

Also associated with

Rating

Apparatus and method for using light scattering to determine the does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Apparatus and method for using light scattering to determine the, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus and method for using light scattering to determine the will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1521062