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1. (AU1991069006) Flow monitor

Office : Australia
Application Number: 69006/91 Application Date: 04.12.1990
Publication Number: 1991069006 Publication Date: 12.08.1993
Publication Kind : A
Prior PCT appl.: Application Number:GB1990001882 ; Publication Number: Click to see the data
IPC:
G01N 15/14
G01N 15/02
G01N 15/06
G01N 21/53
G01N 21/85
G01N 33/28
G PHYSICS
01
MEASURING; TESTING
N
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
15
Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
10
Investigating individual particles
14
Electro-optical investigation
G PHYSICS
01
MEASURING; TESTING
N
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
15
Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
02
Investigating particle size or size distribution
G PHYSICS
01
MEASURING; TESTING
N
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
15
Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
06
Investigating concentration of particle suspensions
G PHYSICS
01
MEASURING; TESTING
N
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
21
Investigating or analysing materials by the use of optical means, i.e. using infra-red, visible, or ultra-violet light
17
Systems in which incident light is modified in accordance with the properties of the material investigated
47
Scattering, i.e. diffuse reflection
49
within a body or fluid
53
within a flowing fluid, e.g. smoke
G PHYSICS
01
MEASURING; TESTING
N
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
21
Investigating or analysing materials by the use of optical means, i.e. using infra-red, visible, or ultra-violet light
84
Systems specially adapted for particular applications
85
Investigating moving fluids or granular solids
G PHYSICS
01
MEASURING; TESTING
N
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
33
Investigating or analysing materials by specific methods not covered by groups G01N1/-G01N31/131
26
Oils; viscous liquids; paints; inks
28
Oils
Applicants: Parker Hannifin (UK) Limited
Inventors: Barnard, Dominic Paul Edmund
Button, David
Pratt, John David
Staff, Paul Ernest
Agents: Griffith Hack
Priority Data: 8927371 04.12.1989 GB
Title: (EN) Flow monitor
Abstract:
(EN) The invention relates to a portable on-line fluid contamination monitor. Means (411, 411') are provided for connecting the monitor to a fluid circuit and means (2) for withdrawing fluid from the circuit. Optical means (4) are used to view the fluid withdrawn from the circuit and to determine the level of contamination by observation of the particles therein, the optical means viewing the fluid through a window (42) by means of a light source (45) disposed to project light through the window and the fluid. A light sensor (47) disposed on the opposite side of the window from the light source is arranged to detect particles in the fluid passing across the window by sensing the degree of light obscuration caused by particles in the fluid.
Also published as:
EP0504215ES2090295US5619333JPH05503150CA2066052DE000069027331
WO/1991/008467