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1. WO1996003634 - PARTICLE COUNTER FOR CONTAMINATION ANALYSIS OF LIQUIDS

Publication Number WO/1996/003634
Publication Date 08.02.1996
International Application No. PCT/US1995/007842
International Filing Date 20.06.1995
Chapter 2 Demand Filed 16.01.1996
IPC
G01N 15/02 2006.01
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
15Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
02Investigating particle size or size distribution
G01N 15/14 2006.01
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
15Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
10Investigating individual particles
14Electro-optical investigation
CPC
G01N 15/02
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
15Investigating characteristics of particles; Investigating permeability, pore-volume, or surface-area of porous materials
02Investigating particle size or size distribution
G01N 15/1404
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
15Investigating characteristics of particles; Investigating permeability, pore-volume, or surface-area of porous materials
10Investigating individual particles
14Electro-optical investigation, e.g. flow cytometers
1404Fluid conditioning in flow cytometers, e.g. flow cells; Supply; Control of flow
Applicants
  • MET ONE, INC. [US/US]; 481 California Avenue Grants Pass, OR 97526, US
Inventors
  • SOMMER, Holger, T.; US
Agents
  • SCHNECK, Thomas; Schneck & McHugh P.O. Box 2-E San Jose, CA 95109-0005, US
Priority Data
280,24025.07.1994US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) PARTICLE COUNTER FOR CONTAMINATION ANALYSIS OF LIQUIDS
(FR) COMPTEUR DE PARTICULES DESTINE A L'ANALYSE DE LA CONTAMINATION DE LIQUIDES
Abstract
(EN)
A particle detection system of the type having an optical particle sensor (37) detecting particles in a liquid stream directed between an inlet (19) and an outlet (55) of the sensor (37). The sensor (37) includes a photodetector producing a signal indicative of the presence and size classes of particles in the stream and a counter (39) receiving the signal to produce a particle count for selected size classes of particles in the liquid. The system includes a source of liquid sample, such as a sample bottle (11) or liquid reservoir (81), in fluid communication with the inlet of the sensor, a source of pressure gas, including a cartridge (21) storing the gas, such as CO2, as a vaporizable liquid under pressure, and means (23-27, 29-31, 17) for directing the pressurized gas to the liquid sample source so as to drive the liquid sample under pressure through the inlet (19) of the sensor (37).
(FR)
Système de détection de particules du type pourvu d'un capteur (37) optique de particules destiné à détecter celles-ci dans un flux liquide dirigé entre un orifice d'entrée (19) et un orifice de sortie (55) du capteur (37), lequel comprend un photodétecteur produisant un signal révélateur de la présence et des classes de dimensions de particules dans le flux, ainsi qu'un compteur (39) recevant le signal aux fins de production d'un comptage de particules destiné aux classes choisies de dimensions de particules dans le liquide. Ce système comprend une source d'échantillon liquide, tel qu'une bouteille (11) à échantillon ou un réservoir (81) à liquide, en communication fluidique avec l'orifice d'entrée du capteur, une source de gaz sous pression comportant une cartouche (21) de stockage d'un gaz, tel que du CO2, en tant que liquide sous pression susceptible d'être vaporisé, ainsi que des moyens (23-27, 29-31, 17) destinés à diriger le gaz sous pression vers la source d'échantillon liquide de manière à diriger l'échantillon liquide sous pression à travers l'orifice d'entrée (19) du capteur (37).
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