FR2447548B1 - - Google Patents

Info

Publication number
FR2447548B1
FR2447548B1 FR7902176A FR7902176A FR2447548B1 FR 2447548 B1 FR2447548 B1 FR 2447548B1 FR 7902176 A FR7902176 A FR 7902176A FR 7902176 A FR7902176 A FR 7902176A FR 2447548 B1 FR2447548 B1 FR 2447548B1
Authority
FR
France
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.)
Expired
Application number
FR7902176A
Other languages
French (fr)
Other versions
FR2447548A1 (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.)
CHAMOURAT PATRICK
Original Assignee
CHAMOURAT PATRICK
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 CHAMOURAT PATRICK filed Critical CHAMOURAT PATRICK
Priority to FR7902176A priority Critical patent/FR2447548A1/en
Publication of FR2447548A1 publication Critical patent/FR2447548A1/en
Application granted granted Critical
Publication of FR2447548B1 publication Critical patent/FR2447548B1/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
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/47—Scattering, i.e. diffuse reflection
    • G01N21/49—Scattering, i.e. diffuse reflection within a body or fluid
    • G01N21/53—Scattering, i.e. diffuse reflection within a body or fluid within a flowing fluid, e.g. smoke
FR7902176A 1979-01-29 1979-01-29 Optical method for suspended particle detection - utilises diffusion and reflection of laser beam, with voltmeter used for indication of particle concentration Granted FR2447548A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7902176A FR2447548A1 (en) 1979-01-29 1979-01-29 Optical method for suspended particle detection - utilises diffusion and reflection of laser beam, with voltmeter used for indication of particle concentration

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7902176A FR2447548A1 (en) 1979-01-29 1979-01-29 Optical method for suspended particle detection - utilises diffusion and reflection of laser beam, with voltmeter used for indication of particle concentration

Publications (2)

Publication Number Publication Date
FR2447548A1 FR2447548A1 (en) 1980-08-22
FR2447548B1 true FR2447548B1 (en) 1982-02-05

Family

ID=9221290

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7902176A Granted FR2447548A1 (en) 1979-01-29 1979-01-29 Optical method for suspended particle detection - utilises diffusion and reflection of laser beam, with voltmeter used for indication of particle concentration

Country Status (1)

Country Link
FR (1) FR2447548A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3412620A1 (en) * 1984-04-04 1985-10-17 Basf Ag, 6700 Ludwigshafen LASER OPTICAL ARRANGEMENT FOR MEASURING THE DEGREE OF DISPERSION IN FLOWING SYSTEMS
GB8624587D0 (en) * 1986-10-14 1986-11-19 North Sea Instr Ltd Particle analysis apparatus
FR2611047B1 (en) * 1987-02-13 1989-06-30 Lambert Electronic Services PARTICLE DISCRIMINATOR CONTINUOUS FLOW FUMIMETER

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3306157A (en) * 1959-12-15 1967-02-28 Hach Chemical Co Turbidimeter for sensing the turbidity of a continuously flowing sample
FR1587202A (en) * 1967-10-24 1970-03-13
FR1550429A (en) * 1967-11-03 1968-12-20
US3873204A (en) * 1970-01-14 1975-03-25 Bio Physics Systems Inc Optical extinction photoanalysis apparatus for small particles
FR2122036A5 (en) * 1971-01-15 1972-08-25 Cilas
US3786261A (en) * 1971-10-12 1974-01-15 Coulter Electronics Optical scanning device
US3797937A (en) * 1972-03-01 1974-03-19 Environmental Systems Corp System for making particle measurements
CH546989A (en) * 1972-12-06 1974-03-15 Cerberus Ag METHOD AND DEVICE FOR FIRE NOTIFICATION.
FR2272387B1 (en) * 1974-05-20 1976-10-15 Rech Ind Liants Hy Centre Et
CH591257A5 (en) * 1976-04-13 1977-09-15 Cerberus Ag Radiation scatter smoke detector - has scatter detector receivers coaxial to radiation bundle to scan different directions using photocells or sensors

Also Published As

Publication number Publication date
FR2447548A1 (en) 1980-08-22

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Legal Events

Date Code Title Description
ST Notification of lapse