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1. WO1985000426 - OPTICALLY BASED MEASUREMENT OF FLUID PARAMETERS

Publication Number WO/1985/000426
Publication Date 31.01.1985
International Application No. PCT/AU1984/000122
International Filing Date 29.06.1984
IPC
G01N 21/51 2006.01
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
21Investigating or analysing materials by the use of optical means, i.e. using infra-red, visible or ultra-violet light
17Systems in which incident light is modified in accordance with the properties of the material investigated
47Scattering, i.e. diffuse reflection
49within a body or fluid
51inside a container, e.g. in an ampoule
G01N 21/05 2006.01
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
21Investigating or analysing materials by the use of optical means, i.e. using infra-red, visible or ultra-violet light
01Arrangements or apparatus for facilitating the optical investigation
03Cuvette constructions
05Flow-through cuvettes
CPC
G01N 2021/4702
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
21Investigating or analysing materials by the use of optical means, i.e. using infra-red, visible or ultra-violet light
17Systems in which incident light is modified in accordance with the properties of the material investigated
47Scattering, i.e. diffuse reflection
4702Global scatter; Total scatter, excluding reflections
G01N 2021/6482
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
21Investigating or analysing materials by the use of optical means, i.e. using infra-red, visible or ultra-violet light
62Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
63optically excited
64Fluorescence; Phosphorescence
645Specially adapted constructive features of fluorimeters
6482Sample cells, cuvettes
G01N 21/05
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
21Investigating or analysing materials by the use of optical means, i.e. using infra-red, visible or ultra-violet light
01Arrangements or apparatus for facilitating the optical investigation
03Cuvette constructions
05Flow-through cuvettes
G01N 21/51
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
21Investigating or analysing materials by the use of optical means, i.e. using infra-red, visible or ultra-violet light
17Systems in which incident light is modified in accordance with the properties of the material investigated
47Scattering, i.e. diffuse reflection
49within a body or fluid
51inside a container, e.g. in an ampoule
G01N 2201/065
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
2201Features of devices classified in G01N21/00
06Illumination; Optics
065Integrating spheres
Applicants
  • COMMONWEALTH SCIENTIFIC AND INDUSTRIAL RESEARCH OR [AU]/[AU] (AllExceptUS)
  • COOGAN, Clive, Keith [AU]/[AU] (UsOnly)
Inventors
  • COOGAN, Clive, Keith
Agents
  • NOONAN, Gregory, J. @
Priority Data
PG 0051/8330.06.1983AU
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) OPTICALLY BASED MEASUREMENT OF FLUID PARAMETERS
(FR) MESURE OPTIQUE DE PARAMETRES DE FLUIDES
Abstract
(EN)
Optical measurement apparatus includes a cell (12) adapted to receive fluid for testing and a light source (16) arranged to direct an incident light beam (5) into the cell. Means (14) is provided to detect at least a pre-determined portion of light emitted by a segment (13) of the cell transversely of the direction of said incident light beam. The light source (16) and the cell (12) are arranged so that the light incident on the cell is not collimated but, as it traverses said segment of the cell, is confined to the cell by total internal reflection, unless otherwise scattered by particles in the cell. A corresponding method is also claimed.
(FR)
Un appareil de mesure optique comprend une cellule (12) adaptée pour recevoir un fluide à tester ainsi qu'une source de lumière (16) disposée pour diriger un rayon de lumière incident (5) dans la cellule. Des moyens (14) sont prévus pour détecter au moins une partie prédéterminée de lumière émise par un segment (13) de la cellule transversalement à la direction dudit rayon de lumière incident. La source lumineuse (16) et la cellule (12) sont disposées de sorte que la lumière incidente sur la cellule n'est pas collimatée mais, en traversant ledit segment de la cellule, elle est confinée sur la cellule par réflection interne totale, à moins qu'elle ne soit diffusée par des particules se trouvant dans la cellule. Un procédé correspondant est également revendiqué.
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