DE2351291A1 - Vorrichtung zum messen der intensitaets-differenz zwischen einem referenzlichtstrahl und einem messlichtstrahl einer empfangsschaltung fuer einen photometer mit dualer wellenlaenge - Google Patents
Vorrichtung zum messen der intensitaets-differenz zwischen einem referenzlichtstrahl und einem messlichtstrahl einer empfangsschaltung fuer einen photometer mit dualer wellenlaengeInfo
- Publication number
- DE2351291A1 DE2351291A1 DE19732351291 DE2351291A DE2351291A1 DE 2351291 A1 DE2351291 A1 DE 2351291A1 DE 19732351291 DE19732351291 DE 19732351291 DE 2351291 A DE2351291 A DE 2351291A DE 2351291 A1 DE2351291 A1 DE 2351291A1
- Authority
- DE
- Germany
- Prior art keywords
- amplifier
- measuring
- light beam
- generating
- circuit
- 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.)
- Withdrawn
Links
- 230000009977 dual effect Effects 0.000 title description 7
- 230000001360 synchronised effect Effects 0.000 claims description 8
- 239000003990 capacitor Substances 0.000 claims description 5
- 230000002123 temporal effect Effects 0.000 claims description 2
- 230000005669 field effect Effects 0.000 description 6
- 238000010521 absorption reaction Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 239000008280 blood Substances 0.000 description 3
- 210000004369 blood Anatomy 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 230000001960 triggered effect Effects 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 238000000149 argon plasma sintering Methods 0.000 description 1
- 238000009534 blood test Methods 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000010494 dissociation reaction Methods 0.000 description 1
- 230000005593 dissociations Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 230000001706 oxygenating effect Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000004448 titration Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J1/00—Photometry, e.g. photographic exposure meter
- G01J1/10—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void
- G01J1/16—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void using electric radiation detectors
-
- 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
-
- 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
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
- G01N21/314—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry with comparison of measurements at specific and non-specific wavelengths
Landscapes
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- General Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Theoretical Computer Science (AREA)
- Mathematical Physics (AREA)
- Engineering & Computer Science (AREA)
- Spectrometry And Color Measurement (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US00297279A US3804535A (en) | 1972-10-13 | 1972-10-13 | Dual wavelength photometer response circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE2351291A1 true DE2351291A1 (de) | 1974-04-25 |
Family
ID=23145625
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19732351291 Withdrawn DE2351291A1 (de) | 1972-10-13 | 1973-10-12 | Vorrichtung zum messen der intensitaets-differenz zwischen einem referenzlichtstrahl und einem messlichtstrahl einer empfangsschaltung fuer einen photometer mit dualer wellenlaenge |
Country Status (9)
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2847771A1 (de) * | 1977-11-04 | 1979-05-10 | Hitachi Ltd | Spektralphotometer |
| EP0014375A2 (de) * | 1979-02-12 | 1980-08-20 | Siemens Aktiengesellschaft | Zweistrahl-Wechsellicht-Kolorimeter |
| EP0020877A1 (de) * | 1979-06-15 | 1981-01-07 | Bodenseewerk Geosystem GmbH | Signalauswerterschaltung für ein Messgerät zur Messung der Extinktion |
Families Citing this family (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1019866B (it) * | 1974-08-09 | 1977-11-30 | Biomedix Ag | Apparecchiatura per la determinazio ne della concentrazione di emoglobi na totale ossigenata e risotta car bossiemoglobina del la capacita dell emoglobina per lo ossigeno della saturazione per centuale in ossigeno e in ossido di carbonio nel sangue o in solu zioni di emoglobina |
| US4167331A (en) * | 1976-12-20 | 1979-09-11 | Hewlett-Packard Company | Multi-wavelength incremental absorbence oximeter |
| DE2727976C3 (de) * | 1977-06-22 | 1980-05-29 | Kernforschungszentrum Karlsruhe Gmbh, 7500 Karlsruhe | Vorrichtung zur Messung der Konzentration mindestens einer Komponente eines Gasgemisches und Verfahren zum Eichen derselben |
| JPS5493890A (en) * | 1977-12-30 | 1979-07-25 | Minolta Camera Kk | Eyeeground oximeter |
| US4294543A (en) * | 1979-11-13 | 1981-10-13 | Command Control & Communications Corporation | Optical system for developing point coordinate information |
| US4305659A (en) * | 1980-03-06 | 1981-12-15 | Baxter Travenol Laboratories, Inc. | Photometric apparatus and method |
| DE3019234C2 (de) * | 1980-05-20 | 1984-08-30 | Duke University Inc., Durham, N.C. | Einrichtung zur in vivo Blutmessung |
| US4350441A (en) * | 1980-06-30 | 1982-09-21 | Baxter Travenol Laboratories, Inc. | Photometric apparatus and method |
| SE449545B (sv) * | 1980-09-01 | 1987-05-04 | Ericsson Telefon Ab L M | Forfarande jemte anordning for att utoka dynamikomradet i ett ingangssteg |
| US4407290A (en) * | 1981-04-01 | 1983-10-04 | Biox Technology, Inc. | Blood constituent measuring device and method |
| DE3239729A1 (de) * | 1981-04-01 | 1983-07-07 | Biox Technology, Inc., 80303 Boulder, Col. | Blutbestandteil-messvorrichtung und -messverfahren |
| US4509522A (en) * | 1981-12-15 | 1985-04-09 | The United States Of America As Represented By The Secretary Of The Navy | Infrared optical measurement of blood gas concentrations and fiber optic catheter |
| GB8326659D0 (en) * | 1983-10-05 | 1983-11-09 | Surrey University Of | Water test kit and turbidity meter |
| US4900933A (en) * | 1986-09-08 | 1990-02-13 | C. R. Bard, Inc. | Excitation and detection apparatus for remote sensor connected by optical fiber |
| US4807630A (en) * | 1987-10-09 | 1989-02-28 | Advanced Medical Systems, Inc. | Apparatus and method for use in pulse oximeters |
| DE3819531A1 (de) * | 1988-06-08 | 1989-12-14 | Reiner Dipl Phys Szepan | Signalprozess- und betriebstechnik zur laserspektroskopischen mengenbestimmung von ammoniak in gasgemischen |
| US5149983A (en) * | 1990-09-07 | 1992-09-22 | Chlean Plants & Engineering Establishment | Method and apparatus for measuring the concentration of at least one material in a fluid medium mixed materials |
| JPH05503359A (ja) * | 1990-09-07 | 1993-06-03 | シュレアン プランツ アンド エンジニアリング エスタブリッシュメント | 素材の濃度測定方法、その実施装置、流体内に含まれる素材の濃度変化方法への前記測定方法の適用およびその構成 |
| US5200629A (en) * | 1990-10-12 | 1993-04-06 | Chlean Plants & Engineering Establishment | Method and system for changing the concentration of one material in a fluid medium of mixed materials |
| DE19849597A1 (de) * | 1998-10-28 | 2000-05-04 | Dade Behring Marburg Gmbh | Nephelometrische Detektionseinheit mit optischer In-Prozeß-Kontrolle |
| US6563585B1 (en) | 1999-11-24 | 2003-05-13 | University Of Maryland Biotechnology Institute | Ratiometric fluorometer |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL287532A (US06582424-20030624-M00016.png) * | 1962-01-23 | |||
| US3446972A (en) * | 1966-07-18 | 1969-05-27 | Kollmorgen Corp | Automatic gain control for photomultiplier tubes employing a monitoring photocell |
| US3544225A (en) * | 1967-12-13 | 1970-12-01 | Berkeley Scient Lab Inc | Peak reading optical density measuring system |
| US3540825A (en) * | 1968-01-18 | 1970-11-17 | Mcpherson Instr Corp | Double beam spectrometer readout system |
| US3609047A (en) * | 1970-03-02 | 1971-09-28 | Xerox Corp | Single beam photometer system wherein the absorbance of a sample is determined relative to a reference |
| US3634868A (en) * | 1970-03-13 | 1972-01-11 | Technicon Instr | New and improved method and apparatus for automatic baseline and standard calibration of automatic, multichannel sequentially operable fluid sample supply, treatment and analysis means |
| US3703336A (en) * | 1970-06-12 | 1972-11-21 | Instrumentation Labor Inc | Analysis system employing a plural chamber cuvette structure |
| DE2059924C3 (de) * | 1970-12-05 | 1973-11-29 | Siemens Ag, 1000 Berlin U. 8000 Muenchen | Verfahren und Schaltungsanordnung zum Messen der Differenz zwischen als elektrische Spannungen oder Strome an fallenden Meßwerten |
-
1972
- 1972-10-13 US US00297279A patent/US3804535A/en not_active Expired - Lifetime
-
1973
- 1973-10-09 GB GB4702673A patent/GB1429724A/en not_active Expired
- 1973-10-09 CA CA182,959A patent/CA993219A/en not_active Expired
- 1973-10-11 JP JP48114295A patent/JPS4974991A/ja active Pending
- 1973-10-11 IT IT30016/73A patent/IT995792B/it active
- 1973-10-12 CH CH1455273A patent/CH573590A5/xx not_active IP Right Cessation
- 1973-10-12 NL NL7314110A patent/NL7314110A/xx not_active Application Discontinuation
- 1973-10-12 DE DE19732351291 patent/DE2351291A1/de not_active Withdrawn
- 1973-10-12 FR FR7336443A patent/FR2203071B1/fr not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2847771A1 (de) * | 1977-11-04 | 1979-05-10 | Hitachi Ltd | Spektralphotometer |
| EP0014375A2 (de) * | 1979-02-12 | 1980-08-20 | Siemens Aktiengesellschaft | Zweistrahl-Wechsellicht-Kolorimeter |
| EP0014375A3 (de) * | 1979-02-12 | 1980-11-26 | Siemens Aktiengesellschaft | Zweistrahl-Wechsellicht-Kolorimeter |
| EP0020877A1 (de) * | 1979-06-15 | 1981-01-07 | Bodenseewerk Geosystem GmbH | Signalauswerterschaltung für ein Messgerät zur Messung der Extinktion |
Also Published As
| Publication number | Publication date |
|---|---|
| GB1429724A (en) | 1976-03-24 |
| JPS4974991A (US06582424-20030624-M00016.png) | 1974-07-19 |
| FR2203071A1 (US06582424-20030624-M00016.png) | 1974-05-10 |
| NL7314110A (US06582424-20030624-M00016.png) | 1974-04-16 |
| CA993219A (en) | 1976-07-20 |
| IT995792B (it) | 1975-11-20 |
| CH573590A5 (US06582424-20030624-M00016.png) | 1976-03-15 |
| FR2203071B1 (US06582424-20030624-M00016.png) | 1977-08-12 |
| US3804535A (en) | 1974-04-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OD | Request for examination | ||
| 8176 | Proceedings suspended because of application no: |
Ref document number: 2346904 Country of ref document: DE Format of ref document f/p: P |
|
| 8178 | Suspension cancelled | ||
| 8139 | Disposal/non-payment of the annual fee |