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1. WO2002025254 - CONCENTRATION MEASURER

Publication Number WO/2002/025254
Publication Date 28.03.2002
International Application No. PCT/JP2001/008222
International Filing Date 21.09.2001
IPC
G01N 21/47 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
G01N 21/49 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
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 21/53 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
53within a flowing fluid, e.g. smoke
CPC
G01N 2021/4747
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 sub-millimetre waves, infrared, visible or ultraviolet light
17Systems in which incident light is modified in accordance with the properties of the material investigated
47Scattering, i.e. diffuse reflection
4738Diffuse reflection
474Details of optical heads therefor, e.g. using optical fibres
4742comprising optical fibres
4747Concentric bundles
G01N 2021/475
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 sub-millimetre waves, infrared, visible or ultraviolet light
17Systems in which incident light is modified in accordance with the properties of the material investigated
47Scattering, i.e. diffuse reflection
4738Diffuse reflection
474Details of optical heads therefor, e.g. using optical fibres
4742comprising optical fibres
475Bifurcated bundle
G01N 21/474
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 sub-millimetre waves, infrared, visible or ultraviolet light
17Systems in which incident light is modified in accordance with the properties of the material investigated
47Scattering, i.e. diffuse reflection
4738Diffuse reflection
474Details of optical heads therefor, e.g. using optical fibres
G01N 21/53
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 sub-millimetre waves, infrared, visible or ultraviolet 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
53within a flowing fluid, e.g. smoke
Applicants
  • ORGANO CORPORATION [JP]/[JP] (AllExceptUS)
  • TOMOE ENGINEERING CO., LTD. [JP]/[JP] (AllExceptUS)
  • SHIBAURA SYSTEMS CO., LTD. [JP]/[JP] (AllExceptUS)
  • TOKYO METROPOLITAN GOVERNMENT [JP]/[JP] (AllExceptUS)
  • HARADA, Toshio [JP]/[JP] (UsOnly)
  • HAYASHI, Tomoyuki [JP]/[JP] (UsOnly)
  • YANO, Saihei [JP]/[JP] (UsOnly)
  • SATO, Shigeo [JP]/[JP] (UsOnly)
  • IMAZU, Tsuneo [JP]/[JP] (UsOnly)
  • SAKAI, Takahiro [JP]/[JP] (UsOnly)
  • MIYAZAWA, Yuzo [JP]/[JP] (UsOnly)
  • KONO, Kinichiro [JP]/[JP] (UsOnly)
Inventors
  • HARADA, Toshio
  • HAYASHI, Tomoyuki
  • YANO, Saihei
  • SATO, Shigeo
  • IMAZU, Tsuneo
  • SAKAI, Takahiro
  • MIYAZAWA, Yuzo
  • KONO, Kinichiro
Agents
  • BAN, Toshimitsu
Priority Data
2000-28893922.09.2000JP
2001-3501213.02.2001JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) CONCENTRATION MEASURER
(FR) DISPOSITIF DE MESURE DE CONCENTRATION
Abstract
(EN)
A concentration measurer for measuring the concentration of turbidity components in measured liquid by detecting the diffuse-reflected light of a laser beam emitted to the measured liquid, comprising a concentration detecting part having multiple bundles of optical fibers for laser beam emission and multiple bundles of optical fibers for laser beam receiving, wherein a body part having a laser beam emitter and a laser beam receiver and the concentration detecting part can be formed separately from each other, or can be formed integrally with each other through a flexible optical fiber, whereby a concentration up to a high turbidity component concentration can be measured with high sensitivity and, when the concentration detecting part is formed separately from the body part, the concentration detecting part can be easily installed even in a restricted area and an adverse environment.
(FR)
L'invention concerne un dispositif de mesure de concentration permettant de mesurer la concentration des composants provoquant la turbidité dans un liquide par la détection de la lumière réfléchie et diffusée d'un faisceau laser dirigé sur le liquide à mesurer. Ce dispositif comprend une partie détecteur de concentration dotée d'une pluralité de groupes de fibres optiques servant à l'émission du faisceau laser, et d'une pluralité de groupes de fibres optiques servant à la réception du faisceau laser. La partie corps comprenant un émetteur et un récepteur de faisceau laser et la partie détecteur de concentration peuvent être distinctes l'une de l'autre ou peuvent être formées d'un seul tenant au moyen d'une fibre optique flexible. Ce dispositif permet de mesurer les concentrations des composants de turbidité jusqu'à des valeurs élevées avec une grande précision, et permet, lorsque la partie détecteur de concentration est formée séparément de la partie corps, une installation aisée de cette partie détecteur, même dans une zone à accès restreint ou dans un environnement nuisible.
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