FR2392378A1 - - Google Patents

Info

Publication number
FR2392378A1
FR2392378A1 FR7616785A FR7616785A FR2392378A1 FR 2392378 A1 FR2392378 A1 FR 2392378A1 FR 7616785 A FR7616785 A FR 7616785A FR 7616785 A FR7616785 A FR 7616785A FR 2392378 A1 FR2392378 A1 FR 2392378A1
Authority
FR
France
Prior art keywords
signal
slope
generating
initial
transparency
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
FR7616785A
Other languages
English (en)
Other versions
FR2392378B1 (fr
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.)
Commissariat a lEnergie Atomique et aux Energies Alternatives CEA
Original Assignee
Commissariat a lEnergie Atomique CEA
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 Commissariat a lEnergie Atomique CEA filed Critical Commissariat a lEnergie Atomique CEA
Priority to FR7616785A priority Critical patent/FR2392378B1/fr
Priority to BE177789A priority patent/BE854897A/fr
Priority to US05/799,935 priority patent/US4109159A/en
Priority to GB21978/77A priority patent/GB1564070A/en
Priority to DE19772724772 priority patent/DE2724772A1/de
Priority to IT68290/77A priority patent/IT1083408B/it
Publication of FR2392378A1 publication Critical patent/FR2392378A1/fr
Application granted granted Critical
Publication of FR2392378B1 publication Critical patent/FR2392378B1/fr
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
    • G01N21/27—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands using photo-electric detection ; circuits for computing concentration
    • G01N21/272—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands using photo-electric detection ; circuits for computing concentration for following a reaction, e.g. for determining photometrically a reaction rate (photometric cinetic analysis)

Landscapes

  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Mathematical Physics (AREA)
  • Theoretical Computer Science (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Investigating Or Analysing Biological Materials (AREA)

Abstract

Procédé et dispositif d'analyse des variations dans le temps de la transparence d'un échantillon. Le dispositif comprend des moyens pour élaborer un premier signal B représentatif des variations dans le temps de ladite transparence, des moyens pour élaborer un deuxième signal A, des moyens pour élaborer une première impulsion à l'instant initial to, des moyens pour élaborer le signal A, ces moyens comportant des moyens pour rendre ce signal représentatif de la pente initiale du signal B au début de sa région à pente forte, des moyens pour comparer périodiquement cette pente à la pente du signal B, des moyens pour élaborer une deuxième impulsion lorsque la pente du signal B devient supérieure à la pente initiale mesurée, et des moyens pour mesurer le temps s'écoulant entre les deux impulsions. Application à la détermination du temps de lyse d'un caillot sanguin.
FR7616785A 1976-06-03 1976-06-03 Expired FR2392378B1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
FR7616785A FR2392378B1 (fr) 1976-06-03 1976-06-03
BE177789A BE854897A (fr) 1976-06-03 1977-05-23 Procede et dispositif d'analyse automatique de la variation de la transparence d'un echantillon
US05/799,935 US4109159A (en) 1976-06-03 1977-05-24 Method and an automatic device for analyzing variations in the transparency of a sample
GB21978/77A GB1564070A (en) 1976-06-03 1977-05-25 Process and apparatus for an automatic device for analyzing variations in the transparency of a sample
DE19772724772 DE2724772A1 (de) 1976-06-03 1977-06-01 Verfahren und vorrichtung zur automatischen analyse von lichtdurchlaessigkeitsaenderungen
IT68290/77A IT1083408B (it) 1976-06-03 1977-06-03 Dispositivo automatico per l'analisi delle variazioni della trasparenza di un campione

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7616785A FR2392378B1 (fr) 1976-06-03 1976-06-03

Publications (2)

Publication Number Publication Date
FR2392378A1 true FR2392378A1 (fr) 1978-12-22
FR2392378B1 FR2392378B1 (fr) 1980-10-31

Family

ID=9173950

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7616785A Expired FR2392378B1 (fr) 1976-06-03 1976-06-03

Country Status (6)

Country Link
US (1) US4109159A (fr)
BE (1) BE854897A (fr)
DE (1) DE2724772A1 (fr)
FR (1) FR2392378B1 (fr)
GB (1) GB1564070A (fr)
IT (1) IT1083408B (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2161601B (en) * 1984-07-13 1988-05-11 Bass Plc Determining the head-retaining properties of beer and other beverages
US4691558A (en) * 1986-06-19 1987-09-08 Halliburton Company Pressure pulse gelation test apparatus and method
US4935346A (en) 1986-08-13 1990-06-19 Lifescan, Inc. Minimum procedure system for the determination of analytes
US6458326B1 (en) 1999-11-24 2002-10-01 Home Diagnostics, Inc. Protective test strip platform
US6562625B2 (en) 2001-02-28 2003-05-13 Home Diagnostics, Inc. Distinguishing test types through spectral analysis
US6525330B2 (en) 2001-02-28 2003-02-25 Home Diagnostics, Inc. Method of strip insertion detection
US6541266B2 (en) 2001-02-28 2003-04-01 Home Diagnostics, Inc. Method for determining concentration of an analyte in a test strip
JP6952668B2 (ja) * 2018-09-28 2021-10-20 シスメックス株式会社 血液凝固分析方法、血液凝固分析装置、プログラム

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3606539A (en) * 1968-11-13 1971-09-20 American Optical Corp Apparatus and method for measuring osmotic fragility of red blood cells
US3625621A (en) * 1969-07-30 1971-12-07 Calbiochem Optical densitometer
US3923397A (en) * 1974-05-29 1975-12-02 Dolive Stephen E Hematocrit measuring method

Also Published As

Publication number Publication date
FR2392378B1 (fr) 1980-10-31
US4109159A (en) 1978-08-22
BE854897A (fr) 1977-09-16
IT1083408B (it) 1985-05-21
GB1564070A (en) 1980-04-02
DE2724772A1 (de) 1977-12-15

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Legal Events

Date Code Title Description
ST Notification of lapse