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1. (CA2066052) FLOW MONITOR

Office : Canada
Application Number: 2066052 Application Date: 04.12.1990
Publication Number: 2066052 Publication Date: 05.06.1991
Grant Number: Grant Date: 10.10.1995
Publication Kind : C
Prior PCT appl.: Application Number:GB1990001882 ; Publication Number: Click to see the data
IPC:
G01N 21/85
G01N 21/05
G01N 21/53
G01N 15/06
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
21
Investigating or analysing materials by the use of optical means, i.e. using infra-red, visible, or ultra-violet light
01
Arrangements or apparatus for facilitating the optical investigation
03
Cuvette constructions
05
Flow-through cuvettes
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
15
Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
06
Investigating concentration of particle suspensions
CPC:
G01N 21/534
G01N 15/06
G01N 21/85
G01N 33/2858
G01N 2015/0222
Applicants:
Inventors: STAFF, PAUL ERNEST
BUTTON, DAVID
PRATT, JOHN DAVID
BARNARD, DOMINIC PAUL EDMUND
Priority Data: 8927371.8 04.12.1989 GB
Title: (EN) FLOW MONITOR
(FR) DISPOSITIF DE CONTROLE POUR CONDUITE DE FLUIDE
Abstract: front page image
(EN) The invention relates to a portable on-line fluid con- tamination monitor. Means (411, 411') are provided for con- necting the monitor to a fluid circuit and means (2) for with- drawing 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 Optical means (4) are used to view the fluid withdrawn from the circuit and to determine the level of contamination by observation of the particles therein, the optical means viewing the fluid through a window (42)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) dis- posed on the opposite side of the window from the light source is arranged to detect particles in the fluid passing ac- ross the window by sensing the degree of light obscuration caused by particles in the fluid.


Also published as:
EP0504215ES2090295US5619333JPH05503150DE000069027331AU1991069006
WO/1991/008467