FR2431694A1 - Granulometric analysis of particles in fluids - by detecting reflected light following passage through nozzle - Google Patents

Granulometric analysis of particles in fluids - by detecting reflected light following passage through nozzle

Info

Publication number
FR2431694A1
FR2431694A1 FR7821273A FR7821273A FR2431694A1 FR 2431694 A1 FR2431694 A1 FR 2431694A1 FR 7821273 A FR7821273 A FR 7821273A FR 7821273 A FR7821273 A FR 7821273A FR 2431694 A1 FR2431694 A1 FR 2431694A1
Authority
FR
France
Prior art keywords
nozzle
particles
reflected light
fluids
light
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
FR7821273A
Other languages
French (fr)
Other versions
FR2431694B1 (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to FR7821273A priority Critical patent/FR2431694A1/en
Publication of FR2431694A1 publication Critical patent/FR2431694A1/en
Application granted granted Critical
Publication of FR2431694B1 publication Critical patent/FR2431694B1/fr
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume, or surface-area of porous materials
    • G01N15/10—Investigating individual particles
    • G01N15/14—Electro-optical investigation, e.g. flow cytometers
    • G01N15/1434—Electro-optical investigation, e.g. flow cytometers using an analyser being characterised by its optical arrangement
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume, or surface-area of porous materials
    • G01N15/10—Investigating individual particles
    • G01N15/14—Electro-optical investigation, e.g. flow cytometers
    • G01N15/1456—Electro-optical investigation, e.g. flow cytometers without spatial resolution of the texture or inner structure of the particle, e.g. processing of pulse signals
    • G01N15/1459—Electro-optical investigation, e.g. flow cytometers without spatial resolution of the texture or inner structure of the particle, e.g. processing of pulse signals the analysis being performed on a sample stream

Abstract

Granulometric analyser for particles contained in fluids comprises a feeding channel communicating with a receiving channel via a nozzle. The ratio between the dia. of the nozzle and the receiving channel is 1:4-7. The receiving channel includes transparent windows through which light is directed from a source. Light reflected by the particles is received by a light-sensitive device via. a separate window, so that the reflected light passes through the nozzle to the device. The analysis of both individual samples and constant fluid flows can be achieved without providing a liq. envelope around the fluid. Used esp. for analysis of impurities in fuels and lubricants.
FR7821273A 1978-07-18 1978-07-18 Granulometric analysis of particles in fluids - by detecting reflected light following passage through nozzle Granted FR2431694A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7821273A FR2431694A1 (en) 1978-07-18 1978-07-18 Granulometric analysis of particles in fluids - by detecting reflected light following passage through nozzle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7821273A FR2431694A1 (en) 1978-07-18 1978-07-18 Granulometric analysis of particles in fluids - by detecting reflected light following passage through nozzle

Publications (2)

Publication Number Publication Date
FR2431694A1 true FR2431694A1 (en) 1980-02-15
FR2431694B1 FR2431694B1 (en) 1981-01-30

Family

ID=9210846

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7821273A Granted FR2431694A1 (en) 1978-07-18 1978-07-18 Granulometric analysis of particles in fluids - by detecting reflected light following passage through nozzle

Country Status (1)

Country Link
FR (1) FR2431694A1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2732753A (en) * 1956-01-31 o konski
US3710933A (en) * 1971-12-23 1973-01-16 Atomic Energy Commission Multisensor particle sorter
US3738759A (en) * 1969-04-18 1973-06-12 W Dittrich Apparatus and methods for flow photometry of particles of a dispersion
US3740148A (en) * 1970-12-08 1973-06-19 Research Corp Portable dust analyzer

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2732753A (en) * 1956-01-31 o konski
US3738759A (en) * 1969-04-18 1973-06-12 W Dittrich Apparatus and methods for flow photometry of particles of a dispersion
US3740148A (en) * 1970-12-08 1973-06-19 Research Corp Portable dust analyzer
US3710933A (en) * 1971-12-23 1973-01-16 Atomic Energy Commission Multisensor particle sorter

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
EXRV/75 *

Also Published As

Publication number Publication date
FR2431694B1 (en) 1981-01-30

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Legal Events

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