DE102009000182A1 - Measuring device, arrangement and method for measuring a content of at least one component in a liquid fuel - Google Patents
Measuring device, arrangement and method for measuring a content of at least one component in a liquid fuel Download PDFInfo
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- DE102009000182A1 DE102009000182A1 DE200910000182 DE102009000182A DE102009000182A1 DE 102009000182 A1 DE102009000182 A1 DE 102009000182A1 DE 200910000182 DE200910000182 DE 200910000182 DE 102009000182 A DE102009000182 A DE 102009000182A DE 102009000182 A1 DE102009000182 A1 DE 102009000182A1
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- liquid fuel
- fuel
- measuring device
- content
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- 239000000446 fuel Substances 0.000 title claims abstract description 59
- 239000007788 liquid Substances 0.000 title claims abstract description 41
- 238000000034 method Methods 0.000 title claims abstract 4
- 238000011156 evaluation Methods 0.000 claims abstract description 15
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 23
- 238000005259 measurement Methods 0.000 claims description 23
- 230000005855 radiation Effects 0.000 claims description 17
- 239000002828 fuel tank Substances 0.000 claims description 16
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 15
- 238000010521 absorption reaction Methods 0.000 claims description 7
- 239000000945 filler Substances 0.000 claims description 5
- 239000012528 membrane Substances 0.000 claims description 5
- 244000188595 Brassica sinapistrum Species 0.000 claims description 3
- 235000004977 Brassica sinapistrum Nutrition 0.000 claims description 3
- 150000004702 methyl esters Chemical class 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims 1
- 230000003287 optical effect Effects 0.000 description 7
- 230000005540 biological transmission Effects 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 238000004847 absorption spectroscopy Methods 0.000 description 3
- 238000011109 contamination Methods 0.000 description 2
- 239000003502 gasoline Substances 0.000 description 2
- 238000004611 spectroscopical analysis Methods 0.000 description 2
- BUHVIAUBTBOHAG-FOYDDCNASA-N (2r,3r,4s,5r)-2-[6-[[2-(3,5-dimethoxyphenyl)-2-(2-methylphenyl)ethyl]amino]purin-9-yl]-5-(hydroxymethyl)oxolane-3,4-diol Chemical compound COC1=CC(OC)=CC(C(CNC=2C=3N=CN(C=3N=CN=2)[C@H]2[C@@H]([C@H](O)[C@@H](CO)O2)O)C=2C(=CC=CC=2)C)=C1 BUHVIAUBTBOHAG-FOYDDCNASA-N 0.000 description 1
- 101100203601 Caenorhabditis elegans sor-3 gene Proteins 0.000 description 1
- 238000001069 Raman spectroscopy Methods 0.000 description 1
- 238000011088 calibration curve Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 238000004993 emission spectroscopy Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 235000013311 vegetables Nutrition 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
- G01N21/35—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
- G01N21/3504—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light for analysing gases, e.g. multi-gas analysis
-
- 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
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/28—Investigating the spectrum
- G01J3/42—Absorption spectrometry; Double beam spectrometry; Flicker spectrometry; Reflection spectrometry
-
- 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
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/28—Investigating the spectrum
- G01J3/42—Absorption spectrometry; Double beam spectrometry; Flicker spectrometry; Reflection spectrometry
- G01J3/427—Dual wavelengths spectrometry
-
- 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
-
- 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
- G01N21/84—Systems specially adapted for particular applications
- G01N21/85—Investigating moving fluids or granular solids
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/26—Oils; Viscous liquids; Paints; Inks
- G01N33/28—Oils, i.e. hydrocarbon liquids
- G01N33/2835—Specific substances contained in the oils or fuels
- G01N33/2852—Alcohol in fuels
-
- 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
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/12—Generating the spectrum; Monochromators
- G01J2003/1213—Filters in general, e.g. dichroic, band
-
- 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
- G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
- G01N21/63—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
- G01N21/65—Raman scattering
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- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Immunology (AREA)
- General Health & Medical Sciences (AREA)
- Biochemistry (AREA)
- Analytical Chemistry (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
Die Erfindung betrifft eine Messvorrichtung, eine Anordnung und ein Verfahren zur Messung eines Gehaltes an mindestens einer Komponente in einem flüssigen Kraftstoff. Die erfindungsgemäße Messvorrichtung weist auf: einen Gassensor (3) zur Ermittlung des Anteils einer gasförmigen Komponente in einer Gasphase (5) des Kraftstoffs (2) und Ausgabe eines ersten Messsignals (S1), und eine Auswerteeinheit (10) zur Aufnahme des ersten Messsignals (S1) und Ermittlung des Gehaltes der Komponente in dem flüssigen Kraftstoff (2). Ergänzend können der Druck und die Temperatur der Gasphase (5) gemessen werden. Erfindungsgemäß ist ein direkter Kontakt mit dem flüssigen Kraftstoff (2) nicht erforderlich.The invention relates to a measuring device, an arrangement and a method for measuring a content of at least one component in a liquid fuel. The measuring device according to the invention comprises: a gas sensor (3) for determining the proportion of a gaseous component in a gas phase (5) of the fuel (2) and outputting a first measuring signal (S1), and an evaluation unit (10) for receiving the first measuring signal ( S1) and determination of the content of the component in the liquid fuel (2). In addition, the pressure and the temperature of the gas phase (5) can be measured. According to the invention, direct contact with the liquid fuel (2) is not required.
Description
Stand der TechnikState of the art
Kraftstoffe für Fahrzeuge, beispielsweise Ottokraftstoffe oder Diesel, setzen sich aus einer Vielzahl von unterschiedlichen Komponenten zusammen. Beispielsweise sind Kraftstoffe bekannt, die eine Kraftstoffkomponente aufweisen, die aus pflanzlichen Rohstoffen gewonnen werden kann. So gibt es Ottokraftstoffe, die einen bestimmten Gehalt an Ethanol oder Methanol aufweisen, sowie Dieselkraftstoffe, die einen bestimmten Gehalt an Rapsmethylester aufweisen. Um einen optimalen Betrieb eines Motors zu gewährleisten, der mit solchen Kraftstoffen betrieben wird, sind Informationen notwendig, wie hoch der Gehalt an einer oder mehreren solcher Komponenten in dem Kraftstoff ist.fuels for vehicles, for example petrol or diesel, are made up of a variety of different components together. For example, fuels are known which are a fuel component which can be obtained from vegetable raw materials. So there are petrol that contains a certain amount of ethanol or methanol, as well as diesel fuels that have a specific Containing rapeseed methyl ester. For optimal operation to ensure an engine with such fuels is operated, information is necessary, how high the salary at one or more of such components in the fuel.
Es
sind Messvorrichtungen zur Messung eines Gehaltes an einer Komponente
in einem flüssigen Kraftstoff bekannt, die es ermöglichen,
eine solche Information zu liefern. So offenbart die Druckschrift
Offenbarung der ErfindungDisclosure of the invention
Erfindungsgemäß ist vorgesehen, dass der Anteil bzw. Gehalt an der Komponente in einer Gasphase des Kraftstoffes, d. h. dem Gasgemisch der Gasphase des Kraftstoffes, gemessen wird, und aus dieser Messung nachfolgend der Gehalt dieser Komponente in dem flüssigen Kraftstoff ermittelt wird. Die Ermittlung des Anteils der Komponente in der Gasphase erfolgt vorteilhafterweise mittels eines optischen bzw. spektroskopischen Gassensors.According to the invention provided that the proportion or content of the component in a Gas phase of the fuel, d. H. the gas mixture of the gas phase of Fuel, is measured, and from this measurement below the content of this component in the liquid fuel is determined. The determination of the proportion of the component in the Gas phase is advantageously carried out by means of an optical or spectroscopic gas sensor.
Die erfindungsgemäße Messvorrichtung zur Messung eines Gehaltes an einer Komponente in einem flüssigen Kraftstoff weist somit einen Gassensor, der den Anteil der Komponente in einer Gasphase misst, und eine geeignete Auswerteeinheit zur Aufnahme und Auswertung des Messsignals des optischen Gassensors auf.The Measuring device according to the invention for measuring a Content of a component in a liquid fuel Thus, a gas sensor, the proportion of the component in one Gas phase measures, and a suitable evaluation unit for recording and evaluation of the measurement signal of the optical gas sensor.
Der Gehalt an einer Komponente in einem flüssigen Kraftstoff, beispielsweise ein Ethanolgehalt in einem Ottokraftstoff, wird über den Anteil bzw. Gehalt an der Komponente in der Gasphase innerhalb des Kraftstoffbehälters bestimmt. Es wird dabei ausgenutzt, dass der Anteil an der Komponente in der Gasphase von der Konzentration der Komponente im flüssigen Kraftstoff abhängt.Of the Content of a component in a liquid fuel, For example, an ethanol content in a gasoline is about the proportion or content of the component in the gas phase within the Fuel tank determined. It is exploited that the proportion of the component in the gas phase of the concentration the component in the liquid fuel depends.
Die Erfindung weist hierbei einige Vorteile auf. So kann ein direkter Kontakt des Sensors mit der Flüssigkeit vermieden werden. Hierdurch kann insbesondere auch eine Kontamination des Sensors vermieden oder verringert werden. Weiterhin ist ein geringer Platzverbrauch bzw. Bedarf an Bauraum erforderlich. Der Gassensor kann hierbei insbesondere auch mikromechanisch mit geringem Platzbedarf ausgebildet sein. Die Anordnung des Gassensors kann z. B. in oder an dem Kraftstoffbehälter bzw. dessen Wandung, oder auch in einer Zuleitung, z. B. dem Einfüllstutzen, erfolgen. Somit kann die jeweilige Ausbildung oder Anordnung des Kraftstoffbehälters oder einer Zuleitung entsprechend genutzt werden. Weiterhin sind die Kosten für den Gassensor und dessen Anbringung relativ gering, insbesondere bei Verwendung eines mikromechanischen Gassensors.The This invention has some advantages. So can a direct Contact of the sensor with the liquid should be avoided. This can in particular also a contamination of the sensor be avoided or reduced. Furthermore, a small space consumption or space requirement required. The gas sensor can hereby in particular also micromechanically formed with a small footprint be. The arrangement of the gas sensor may, for. B. in or on the fuel tank or its wall, or in a supply line, for. B. the filler neck, respectively. Thus, the respective training or arrangement of the Fuel tank or a supply line used accordingly become. Furthermore, the costs for the gas sensor and its Attachment relatively low, especially when using a micromechanical Gas sensor.
Zur Bestimmung des Anteils der Komponente in dem gasförmigen Zustand können geeignete Absorptionslinien der Komponente herangezogen werden, für Ethanol z. B. die Absorptionslinien bei 3,4 μm, 7,2 μm, 8,1 μm oder 9,5 μm. Die Auswahl der Absorptionslinie kann so erfolgen, dass keine Querempfindlichkeit zu einer anderen im Kraftstoff befindlichen, insbesondere leicht flüchtigen Substanz besteht. Es besteht zudem die Möglichkeit, Querempfindlichkeiten zu anderen Komponenten durch die Berücksichtigung mehrerer Absorptionslinien zu eliminieren. Erfindungsgemäß kann hierbei insbesondere eine hohe Selektivität in Bezug auf Ethanol erreicht werden.to Determination of the proportion of the component in the gaseous Condition can be appropriate absorption lines of the component be used for ethanol z. B. the absorption lines at 3.4 μm, 7.2 μm, 8.1 μm or 9.5 μm. The selection of the absorption line can be done so that no cross-sensitivity to another located in the fuel, especially light volatile substance. There is also the possibility Cross sensitivities to other components by consideration several absorption lines to eliminate. According to the invention in particular a high selectivity with respect to Ethanol can be achieved.
Von dem Anteil bzw. Gehalt an der ausgewählten Komponente in der Gasphase kann auf den Gehalt an dieser Komponente in dem flüssigen Kraftstoff zurückgerechnet werden. Hierfür kann beispielsweise entweder ein theoretisches Modell auf Basis der Flüchtigkeit dieser Komponente im flüssigen Kraftstoff dienen oder eine experimentell bestimmte Abgleichkurve verwendet werden. Vorzugsweise werden für die Ermittlung des Gehaltes an der Komponente in dem flüssigen Kraftstoff Werte für Temperatur und/oder Druck hinzugezogen, die die Temperatur bzw. den Druck der Gasphase wiedergeben. Diese Werte können beispielsweise mittels eines Temperatursensors bzw. Drucksensors erhalten werden.From the proportion or content of the selected component in The gas phase can affect the content of this component in the liquid Fuel to be recalculated. For this can for example, either a theoretical model based on volatility Serve this component in the liquid fuel or a experimentally determined calibration curve can be used. Preferably for determining the content of the component in the liquid fuel values for temperature and / or Pressure involved, the temperature or the pressure of the gas phase play. These values can be, for example, by means of a temperature sensor or pressure sensor are obtained.
Der Gassensor ist vorzugsweise als spektroskopischer Sensor, vorzugsweise für eine Absorptionsspektroskopie ausgebildet. Neben Absorptionsspektroskopie können grundsätzlich auch andere Spektroskopiearten angewandt werden, wie z. B. Emissions- oder Ramanspektroskopie.The gas sensor is preferably designed as a spectroscopic sensor, preferably for absorption spectroscopy. In addition to absorption spectroscopy other types of spectroscopy can be used in principle, such. B. Emission or Raman spectroscopy.
Der Gassensor und gegebenenfalls die weiteren Sensoren können direkt an dem Kraftstoffbehälter, z. B. einem Kraftstofftank eines Fahrzeuges, oder in oder an einer Zuleitung zu dem Kraftstoffbehälter, z. B. einem Einfüllstutzen, angebracht sein.Of the Gas sensor and optionally the other sensors can directly to the fuel tank, z. B. a fuel tank a vehicle, or in or on a supply line to the fuel tank, z. B. a filler neck, be appropriate.
Die durch eine Messung erhaltene Information über den Gehalt an der Komponente in dem flüssigen Kraftstoff kann insbesondere für die Optimierung einer Ansteuerung eines Motors, in dem der Kraftstoff verbrannt wird, verwendet werden.The information on the content obtained by a measurement in particular, at the component in the liquid fuel for optimizing a control of a motor, in used to burn the fuel.
Erfindungsgemäß können auch mehrere Komponenten in dem flüssigen Kraftstoff jeweils selektiv ermittelt werden, z. B. auch durch eine gemeinsame Strahlungsquelle und mehrere Detektoren bzw. einen Detektorchip mit mehreren Filtern.According to the invention also several components in the liquid fuel, respectively be selectively determined, for. B. also by a common radiation source and a plurality of detectors or a detector chip with a plurality of filters.
Kurze Beschreibung der ZeichnungenBrief description of the drawings
Die Erfindung wird im Folgenden anhand von Ausführungsbeispielen, die durch mehrere Figuren dargestellt sind, näher erläutert. Dabei zeigt:The The invention will be described below on the basis of exemplary embodiments, which are represented by a plurality of figures, explained in more detail. Showing:
Gleiche oder einander entsprechende Bauteile sind in den Figuren mit denselben Bezugszeichen versehen.Same or corresponding components are in the figures with the same Provided with reference numerals.
Ausführungsformen der Erfindungembodiments the invention
Der
Gassensor
Neben
dem Gassensor
Gassensor
Als
Temperatursensor
In
diesem Ausführungsbeispiel ist der Kraftstoff
Anstelle
eines Fahrzeugtankes
Erfindungsgemäß bilden
die Auswerteeinheit
Die
Der
Gassensor
Alternativ
kann der Gassensor
Der
Gassensor
Die
ZITATE ENTHALTEN IN DER BESCHREIBUNGQUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- - US 2007/0056365 A1 [0002] US 2007/0056365 A1 [0002]
- - US 2004/0251919 A1 [0002] - US 2004/0251919 A1 [0002]
- - DE 102006049260 A1 [0026] DE 102006049260 A1 [0026]
- - DE 102004044145 B3 [0026] - DE 102004044145 B3 [0026]
- - DE 102006010100 A1 [0026] - DE 102006010100 A1 [0026]
Claims (14)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200910000182 DE102009000182A1 (en) | 2009-01-13 | 2009-01-13 | Measuring device, arrangement and method for measuring a content of at least one component in a liquid fuel |
PCT/EP2009/066189 WO2010081585A1 (en) | 2009-01-13 | 2009-12-02 | Measuring device, arrangement, and method for measuring a content of at least one component in a fluid fuel |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200910000182 DE102009000182A1 (en) | 2009-01-13 | 2009-01-13 | Measuring device, arrangement and method for measuring a content of at least one component in a liquid fuel |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102009000182A1 true DE102009000182A1 (en) | 2010-07-15 |
Family
ID=41692978
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE200910000182 Withdrawn DE102009000182A1 (en) | 2009-01-13 | 2009-01-13 | Measuring device, arrangement and method for measuring a content of at least one component in a liquid fuel |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE102009000182A1 (en) |
WO (1) | WO2010081585A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2016112964A1 (en) * | 2015-01-14 | 2016-07-21 | Abb Technology Ag | Method for determining a property of a fluid component of a fluid present in a compartment of an electrical apparatus |
Citations (5)
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US20040251919A1 (en) | 2003-06-16 | 2004-12-16 | Siemens Vdo Automotive Corporation | Method of measuring the concentration of a fluid component that has a variable dielectric characteristic |
DE102004044145B3 (en) | 2004-09-13 | 2006-04-13 | Robert Bosch Gmbh | Reflector module for a photometric gas sensor |
US20070056365A1 (en) | 2005-08-08 | 2007-03-15 | Siemens Vdo Automotive Corporation | Fluid quality sensor |
DE102006010100A1 (en) | 2006-03-06 | 2007-09-13 | Robert Bosch Gmbh | Gaseous/liquid substance e.g. engine oil, measurement device for motor vehicle, has evaluation and control arrangement outputting signals to radiation source for adjusting operating modes of source with different emission spectra |
DE102006049260A1 (en) | 2006-10-19 | 2008-04-30 | Robert Bosch Gmbh | Sensor arrangement for spectroscopic measurement of media e.g. gas, in air conditioning system of motor vehicle, has filter device emitting wavelength specific spatially dispersed frequency spectrum to detector units |
Family Cites Families (5)
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US6526805B1 (en) * | 2000-08-11 | 2003-03-04 | General Electric Co. | Apparatus for continuously determining volatile substances dissolved in insulating fluid |
JP3999601B2 (en) * | 2002-08-09 | 2007-10-31 | トヨタ自動車株式会社 | Fuel concentration detector for composite fuel |
WO2004113169A1 (en) * | 2003-06-16 | 2004-12-29 | Siemens Aktiengesellschaft | Device and method for monitoring the oxygen concentration in an aircraft tank |
US7352464B2 (en) * | 2004-01-05 | 2008-04-01 | Southwest Sciences Incorporated | Oxygen sensor for aircraft fuel inerting systems |
DE102007025585A1 (en) * | 2007-06-01 | 2008-12-04 | Siemens Ag | Method for operation of combustion engine with fuels of different composition, involves illuminating part of fuel with light, where fuel is supplied in operation of combustion engine |
-
2009
- 2009-01-13 DE DE200910000182 patent/DE102009000182A1/en not_active Withdrawn
- 2009-12-02 WO PCT/EP2009/066189 patent/WO2010081585A1/en active Application Filing
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20040251919A1 (en) | 2003-06-16 | 2004-12-16 | Siemens Vdo Automotive Corporation | Method of measuring the concentration of a fluid component that has a variable dielectric characteristic |
DE102004044145B3 (en) | 2004-09-13 | 2006-04-13 | Robert Bosch Gmbh | Reflector module for a photometric gas sensor |
US20070056365A1 (en) | 2005-08-08 | 2007-03-15 | Siemens Vdo Automotive Corporation | Fluid quality sensor |
DE102006010100A1 (en) | 2006-03-06 | 2007-09-13 | Robert Bosch Gmbh | Gaseous/liquid substance e.g. engine oil, measurement device for motor vehicle, has evaluation and control arrangement outputting signals to radiation source for adjusting operating modes of source with different emission spectra |
DE102006049260A1 (en) | 2006-10-19 | 2008-04-30 | Robert Bosch Gmbh | Sensor arrangement for spectroscopic measurement of media e.g. gas, in air conditioning system of motor vehicle, has filter device emitting wavelength specific spatially dispersed frequency spectrum to detector units |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2016112964A1 (en) * | 2015-01-14 | 2016-07-21 | Abb Technology Ag | Method for determining a property of a fluid component of a fluid present in a compartment of an electrical apparatus |
US10630061B2 (en) | 2015-01-14 | 2020-04-21 | Abb Schweiz Ag | Method for determining a property of a fluid component of a fluid present in a compartment of an electrical apparatus |
Also Published As
Publication number | Publication date |
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WO2010081585A1 (en) | 2010-07-22 |
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