FR2453405A1 - Biological sample opacity meter - uses several photometric measurements to compensate for irregularities in vessels - Google Patents

Biological sample opacity meter - uses several photometric measurements to compensate for irregularities in vessels

Info

Publication number
FR2453405A1
FR2453405A1 FR7909247A FR7909247A FR2453405A1 FR 2453405 A1 FR2453405 A1 FR 2453405A1 FR 7909247 A FR7909247 A FR 7909247A FR 7909247 A FR7909247 A FR 7909247A FR 2453405 A1 FR2453405 A1 FR 2453405A1
Authority
FR
France
Prior art keywords
irregularities
vessels
compensate
biological sample
motor
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
FR7909247A
Other languages
French (fr)
Other versions
FR2453405B1 (en
Inventor
Bernard Marais
Gerard Leroy
Yves Moschetto
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.)
Institut National de la Sante et de la Recherche Medicale INSERM
Original Assignee
Institut National de la Sante et de la Recherche Medicale INSERM
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 Institut National de la Sante et de la Recherche Medicale INSERM filed Critical Institut National de la Sante et de la Recherche Medicale INSERM
Priority to FR7909247A priority Critical patent/FR2453405B1/en
Publication of FR2453405A1 publication Critical patent/FR2453405A1/en
Application granted granted Critical
Publication of FR2453405B1 publication Critical patent/FR2453405B1/en
Expired 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
    • G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/251—Colorimeters; Construction thereof
    • G01N21/253—Colorimeters; Construction thereof for batch operation, i.e. multisample apparatus
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2201/00—Features of devices classified in G01N21/00
    • G01N2201/12—Circuits of general importance; Signal processing
    • G01N2201/124—Sensitivity
    • G01N2201/1245—Averaging several measurements

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Automatic Analysis And Handling Materials Therefor (AREA)
  • Optical Measuring Cells (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)

Abstract

Photometry is used to determine the transparency or opacity of a medi in various biological and bacteriological studies. This allows the state of a phenomena to be determined. Irregularities in existing vessels are compensated for by making several different measurements. The different test tubes (1) are retained in a carrier comprising an upper (3) and lower (4) horizontal plates. Synchronised eccentric drive systems (15) comprising a motor (19) and vertical shafts (17) communicate with the lower plate to agitate the tubes. Fans (29) circulate air to maintain a uniform temperature consistent with the temp. of fluid flowing in sealed chambers (27). A photometric measuring system is carried by a carriage (33) which is moved when a motor (38) drives a pulley (39) around an axis (40). Two arms (45,46) carry luminous emitters (48) whose radiation passes via a tube to a phototransistor (49).
FR7909247A 1979-04-06 1979-04-06 METHOD AND APPARATUS FOR PHOTOMETRICAL STUDY OF THE TRANSPARENCY OR OPACITY OF A MEDIUM Expired FR2453405B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7909247A FR2453405B1 (en) 1979-04-06 1979-04-06 METHOD AND APPARATUS FOR PHOTOMETRICAL STUDY OF THE TRANSPARENCY OR OPACITY OF A MEDIUM

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7909247A FR2453405B1 (en) 1979-04-06 1979-04-06 METHOD AND APPARATUS FOR PHOTOMETRICAL STUDY OF THE TRANSPARENCY OR OPACITY OF A MEDIUM

Publications (2)

Publication Number Publication Date
FR2453405A1 true FR2453405A1 (en) 1980-10-31
FR2453405B1 FR2453405B1 (en) 1982-08-06

Family

ID=9224242

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7909247A Expired FR2453405B1 (en) 1979-04-06 1979-04-06 METHOD AND APPARATUS FOR PHOTOMETRICAL STUDY OF THE TRANSPARENCY OR OPACITY OF A MEDIUM

Country Status (1)

Country Link
FR (1) FR2453405B1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2521295A1 (en) * 1982-02-05 1983-08-12 Kone Oy METHOD FOR THE PHOTOMETRIC MEASUREMENT OF LIQUIDS IN REACTION VASES, AND REACTION VASES FOR THE IMPLEMENTATION OF THE METHOD
WO1999024160A1 (en) * 1997-11-08 1999-05-20 Chemspeed, Ltd. Device for holding reaction vessels which can be thermally adjusted and agitated
WO2014140451A1 (en) 2013-03-12 2014-09-18 Formulaction Apparatus for analyzing phases of multiphase mixtures
US10330596B1 (en) 2018-03-27 2019-06-25 King Saud University Apparatus and method for testing the ability of materials to protect photolabile materials

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1138862A (en) * 1955-10-27 1957-06-20 Blood sedimentation curve recording device
DE1223174B (en) * 1960-03-21 1966-08-18 Solvay Method and device for monitoring potentially explosive operating processes by photometric means
US3544225A (en) * 1967-12-13 1970-12-01 Berkeley Scient Lab Inc Peak reading optical density measuring system
DE2418065A1 (en) * 1974-04-13 1975-10-23 Hellige Gmbh Automatic blood sedimentation tester - produces pulses at the ends of specified time intervals
US4004883A (en) * 1975-07-11 1977-01-25 G. D. Searle & Co. Sensing, leveling and mixing apparatus
US4118801A (en) * 1976-11-05 1978-10-03 Kraft Jack A Rack for vessels and means for agitating the vessels in the rack
US4125327A (en) * 1975-11-17 1978-11-14 Gradient Pty. Limited Method and apparatus for simultaneously recording reaction times

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1138862A (en) * 1955-10-27 1957-06-20 Blood sedimentation curve recording device
DE1223174B (en) * 1960-03-21 1966-08-18 Solvay Method and device for monitoring potentially explosive operating processes by photometric means
US3544225A (en) * 1967-12-13 1970-12-01 Berkeley Scient Lab Inc Peak reading optical density measuring system
DE2418065A1 (en) * 1974-04-13 1975-10-23 Hellige Gmbh Automatic blood sedimentation tester - produces pulses at the ends of specified time intervals
US4004883A (en) * 1975-07-11 1977-01-25 G. D. Searle & Co. Sensing, leveling and mixing apparatus
US4125327A (en) * 1975-11-17 1978-11-14 Gradient Pty. Limited Method and apparatus for simultaneously recording reaction times
US4118801A (en) * 1976-11-05 1978-10-03 Kraft Jack A Rack for vessels and means for agitating the vessels in the rack

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
EXBK/66 *

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2521295A1 (en) * 1982-02-05 1983-08-12 Kone Oy METHOD FOR THE PHOTOMETRIC MEASUREMENT OF LIQUIDS IN REACTION VASES, AND REACTION VASES FOR THE IMPLEMENTATION OF THE METHOD
WO1999024160A1 (en) * 1997-11-08 1999-05-20 Chemspeed, Ltd. Device for holding reaction vessels which can be thermally adjusted and agitated
US6558632B1 (en) 1997-11-08 2003-05-06 Chemspeed Ltd. Device for holding reaction vessels which can be thermally adjusted and agitated
WO2014140451A1 (en) 2013-03-12 2014-09-18 Formulaction Apparatus for analyzing phases of multiphase mixtures
FR3003351A1 (en) * 2013-03-12 2014-09-19 Formulaction APPARATUS FOR ANALYZING PHASES OF POLYPHASIC MIXTURES
US9581544B2 (en) 2013-03-12 2017-02-28 Formulaction Apparatus for analyzing phases of multiphase mixtures
US10330596B1 (en) 2018-03-27 2019-06-25 King Saud University Apparatus and method for testing the ability of materials to protect photolabile materials

Also Published As

Publication number Publication date
FR2453405B1 (en) 1982-08-06

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