Method of measuring particles and apparatus for the same

Details Method of measuring particles and apparatus for the same Method of measuring particles and apparatus for the same

1994-05-04

1996-12-10

Pham, Hoa Q.

Optics: measuring and testing

By particle light scattering

With photocell detection

356339, 377 11, G01N 1502

Patent

active

055836356

ABSTRACT:
The present invention provides a method of measuring particles and an apparatus for the same, which count only particles in liquid by distinguishing between the particles and bubbles in liquid. In order to fulfill the above requirements, in the present invention, liquid to be measured flows through a flow cell at a fixed flow rate, and a laser beam is irradiated thereto. Scattering light is generated when particles and bubbles pass through a laser beam irradiation region, and the scattering light is converted into a pulse signal by a photoelectric converter. In the pulse signals, a pulse signal having a pulse width of 100 .mu.S is regarded as corresponding to light scattered by a bubble, which is omitted from the number of pulse signals. Thus, only a pulse signal corresponding to light scattered by a particle in liquid can be measured.

REFERENCES:
patent: 3579249 (1971-05-01), Dewey
patent: 4021117 (1977-05-01), Grohde et al.
patent: 4330745 (1982-05-01), Hayashi
patent: 5059395 (1991-10-01), Brittenham et al.
patent: 5257087 (1993-10-01), Furuya

Affiliated with

Also associated with

Rating

Method of measuring particles and apparatus for the same does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method of measuring particles and apparatus for the same, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of measuring particles and apparatus for the same will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-427897