EP1907823A1 - Device and method for analysing fluids in a tank - Google Patents
Device and method for analysing fluids in a tankInfo
- Publication number
- EP1907823A1 EP1907823A1 EP06769428A EP06769428A EP1907823A1 EP 1907823 A1 EP1907823 A1 EP 1907823A1 EP 06769428 A EP06769428 A EP 06769428A EP 06769428 A EP06769428 A EP 06769428A EP 1907823 A1 EP1907823 A1 EP 1907823A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- light
- diesel oil
- voltage
- probe
- indicator
- 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- Withdrawn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
- 238000000034 method Methods 0.000 title claims description 11
- 239000012530 fluid Substances 0.000 title description 5
- 239000002283 diesel fuel Substances 0.000 claims abstract description 57
- 239000000523 sample Substances 0.000 claims abstract description 30
- 238000010521 absorption reaction Methods 0.000 claims description 17
- 239000004020 conductor Substances 0.000 claims description 13
- 230000031700 light absorption Effects 0.000 claims description 9
- 230000003287 optical effect Effects 0.000 claims description 6
- 238000000926 separation method Methods 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 3
- 239000000654 additive Substances 0.000 claims 2
- 238000000862 absorption spectrum Methods 0.000 description 11
- 239000007788 liquid Substances 0.000 description 10
- 238000010790 dilution Methods 0.000 description 6
- 239000012895 dilution Substances 0.000 description 6
- 239000003350 kerosene Substances 0.000 description 6
- 238000005259 measurement Methods 0.000 description 6
- 239000000203 mixture Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000012549 training Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 239000003550 marker Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 238000012360 testing method 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
- G01N21/84—Systems specially adapted for particular applications
- G01N21/85—Investigating moving fluids or granular solids
- G01N21/8507—Probe photometers, i.e. with optical measuring part dipped into fluid sample
-
- 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
- G01N21/255—Details, e.g. use of specially adapted sources, lighting or optical systems
-
- 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
Definitions
- the invention relates to a device for quality checking diesel oil in a container or tank. More specifically the invention is an apparatus for conducting a simple and quick quality check of diesel oil in which the apparatus does not demand any technical demands with respect to the technical skills of the user.
- the lorry transport trade is among the kind of business who often experience problems with the quality of the diesel oil bought for use in diesel engines.
- the plurality of problems may comprise insufficient maintenance and inspection of fuel tanks, water in the diesel oil, or use of diesel which may have been changed compared to the quality provided by serious fuel providers would like to deliver.
- the consequences of using a diesel oil of inferior quality may comprise all between sudden engine failure to fuel pump damage which may be costly to repair for a lorry owner. Purveyors of lorries are usually then held responsible as they are accused with having supplied a bad product which malfunctions or which does not perform according to expectations.
- US 5696592 describes an apparatus for measurement of light penetrating fluids, in which said apparatus comprises two or more diodes, a light conducting device as e.g. a fibre optical conductor, and a metering apparatus indicating the voltage resulting.
- the apparatus is encapsulated in an acid- and water proof (waterproof) container.
- the apparatus is, however, relatively complicated, and will not feasibly conduct measurements of diesel oil quality. That the apparatus comprises fibre optic or other optically conducting connections in the probe as such, considerably complicates the apparatus and necessitates training of possible users, as compared to the fact that training is not required with the present invention.
- US 5099504 describes a device that allows measurement of the thickness or density of a material by means of a diode.
- US 6055059 describes a device measuring fibres on a plane surface by means of diodes and optical meters.
- US 4637729 describes an apparatus and a method for detecting a given substance in a liquid.
- the apparatus comprises a container for keeping the liquid subject to be examined, two or more optically conducting devices, and two or more light diodes providing light at exact wavelengths.
- a light signal having a first wavelength expected to be affected by the fluid is sent through a first optical conductor, traverses the fluid subject to investigation, before being reflected by a mirror to meet the second optical conductor which conducts the light signal back to a meter.
- a light signal having a second wavelength expected not to be affected by the liquid is than sent through the liquid in the same way.
- US 4682895 relates to an apparatus and a method for metering chemical properties of tissue, by means of a colorimetric liquid that interrupts the ray path of a given light ray.
- the colorimetric liquid is arranged i a chamber being semi- permeable relative to the liquid to be metered.
- the apparatus thus does not directly measure the absorption properties of a liquid, but the absorption properties of a liquid that reacts with a colorimetric molecule.
- the invention concerns a device for quality control of a diesel oil, in which the device is arranged for measuring the light absorption property of a diesel oil with respect to light of a given wavelength.
- the device comprises a light source and a light detector arranged in a chamber in a probe in which the light source and the light detector are arranged having a given relative separation and angular position. Electrical conductors are connected to the light source for providing it with voltage from a voltage source.
- the probe is arranged for being inserted into the diesel oil in a tank or container, and is further provided with channels or apertures allowing the diesel of the tank to penetrate into the chamber of the probe, and fill this entirely or partially with the diesel oil.
- the light source is arranged for emitting light waves having a wavelength about 360 - 420 nm, said light to traverse the diesel oil in said chamber.
- the light detector converts part of said light from the light source to electrical voltage, which subsequently by means of electrically conductors leads the voltage to an indicator.
- the indicator is arranged for, based on the voltage provided by the light detector, to give an indicating signal telling whether the diesel has a light absorption or light transmission within or outside of a desired range, and thus whether the diesel oil is of acceptable quality or not.
- Fig. 1 illustrates the use of a preferred embodiment of a device (1) according to the invention, in which the device's (1) one end with the probe (12) is guided into a tank (3), said tank (3) being entirely or partially filled with diesel oil
- said instrument housing (20) further comprises one or more indicators (17), one or more computing units (15), one or more voltage sources (10), and one or more voltage meters (6).
- Fig. 2 shows a section of the probe (12) according to the invention having a light source (4), glass (18) for separating the light source (4) and the light detector (5) from the diesel oil (2) in the chamber (14).
- Fig. 3 shows in outline a device (1) according to the invention with the probe (12) and the chamber (14) and the indicator (17).
- Fig. 4a shows an absorption spectrum for a first, Norwegian, so-called green diesel ["green”: i.e. diced (dyed) with a chemical marker to indicate restricted use due to fiscal regulations], the diesel has an arrow-marked absorption peak calculated to be at 367 nm.
- Fig. 4b shows an absorption spectrum for a second so-called Norwegian "green” diesel having an arrow-indicated absorption peak calculated to reside at 411 nm.
- Fig. 4c displays an absorption spectrum for a third Norwegian so-called “green” diesel, having an arrow-indicated absorption peak calculated to be at 380 nm.
- Fig. 4d shows an absorption spectrum for a Norwegian so-called red diesel, having an arrow-marked absorption peak calculated to be at 391 nm.
- Fig. 4e shows an absorption spectrum for a mixed Norwegian diesel, having an arrow-indicated absorption peak calculated to be at 370 nm.
- Fig. 4f shows an absorption spectrum for a Swedish so-called "green” diesel, having an arrow-indicated absorption top calculated to be at about 350 nm, but a secondary peak about 380 nm is clearly visible.
- Fig. 4g shows an absorption spectrum for a second Swedish so-called greed diesel, having an arrow-marked absorption peak calculated to reside about 407 nm.
- Fig. 4h shows an absorption spectrum for a fourth Norwegian so-called "green” diesel, having an arrow-indicated absorption peak calculated to be about 370 nm. Moreover one may observe clearly repeating peaks in every diagram except 4d about 600 or 650.
- Fig. 5 shows absorption spectrum for different degrees of dilution of a diesel, having a first arrow-marked absorption peak for the single desired diesel oil about 400 nm.
- the principle for the method according to the invention may be described on the basis of the absorption spectra shown in Fig. 4a - 4h.
- the different absorption spectra display peaks at generally the same wavelengths, with a pronounced peak for most of the measurements residing between 370 and 412 nm wavelength light.
- Table 1 displayed below establishes that the voltage formed in the light detector 5 is reduced upon increasing dilution of diesel oil 2 with kerosene.
- the table also shows that the density of the mixture is very little affected, a fact that makes it hard to detect dilution of diesel oil using measurements of density.
- the probe 12 is guided into a tank or container 3 containing(contents) diesel oil 2.
- the probe 12 are arranged one or more light sources 4 and one or more light detectors 5 in a given separation and angular position between the light source 4 and the light detector 5 in a chamber 14.
- the chamber 14 is provided with channels or inlets 16 allowing the diesel oil 2 in the tank 3 to fill the chamber 14.
- the light from the at least one light source 4 traverses through the diesel oil 2 in said chamber 14 and arrives at the at least one light detector 5.
- the light source 4 emits light with a wavelength about 360 to 420 nm.
- the light source 4 is a light diode emitting a bluish light.
- the light source 4 is a laser that likewise emits a bluish light having a wavelength within said desired spectrum.
- the light detector 5 converts part of the received light having traversed the diesel oil 2 in the chamber 14 to an electrical voltage V1 that is led to an indicator 17 by means of electrically conductors 8.
- the indicator 17 according to a very simple embodiment of the invention, provides a signal 11 that indicates whether the diesel oil 2 is of desired quality.
- the indicator 17 may be a light diode that may require a minimum voltage to light the lamp, whereby the light diode provides an optical signal as an indication that the diesel oil is of desired quality or not.
- this minimum voltage for a light diode e.g. a red one
- this minimum voltage for a light diode is e.g. above 0.39V, this may indicate little absorption and thus a diesel oil of undesired quality.
- the indicator 17 is a voltage meter metering the voltage provided from the light detector 5.
- a voltage amplifier 9 is arranged between the light detector 5 and the indicator 17 in order to amplify or in other ways modify the electrical voltage signal from the light diode 5 to the indicator 17.
- a computing unit 15 is arranged having an algorithm 13 being arranged for providing a signal to the indicator 17 which further indicates whether the diesel oil 2 being of desired quality.
- the electronics may simply be modified for indicating the absorption on a linear scale and send signals to different lamps indicating various degrees of fulfilment of the quality criteria, please refer to Fig.
- the probe 12 is flexibly connected to the voltage source 10 by means of a flexible hollow pipe 19, in which said pipe 19 is arranged for holding the electrical conductors 7, 8 between the voltage source 10 to the probe 12.
- the probe 12 may be arranged for being fixedly arranged in a tank or container 3 or another part of the diesel oil's transport path ahead to the diesel injection pump.
- the probe 12 may be provided by a wireless transmitter 21 arranged for transmitting a signal indicating the metered voltage V1 to a receiver 22 further connected to an instrument housing for analysing that voltage V1 , and which provides a signal indicating whether the diesel oil 2 is of a desired quality.
Landscapes
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Analytical Chemistry (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- Spectroscopy & Molecular Physics (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)
- Sampling And Sample Adjustment (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NO20053320A NO323486B1 (en) | 2005-07-06 | 2005-07-06 | Diesel oil grade paint device |
PCT/NO2006/000257 WO2007004897A1 (en) | 2005-07-06 | 2006-07-05 | Device and method for analysing fluids in a tank |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1907823A1 true EP1907823A1 (en) | 2008-04-09 |
EP1907823A4 EP1907823A4 (en) | 2014-07-09 |
Family
ID=35295147
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP06769428.1A Withdrawn EP1907823A4 (en) | 2005-07-06 | 2006-07-05 | Device and method for analysing fluids in a tank |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1907823A4 (en) |
NO (1) | NO323486B1 (en) |
WO (1) | WO2007004897A1 (en) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7851758B1 (en) | 2005-09-29 | 2010-12-14 | Flir Systems, Inc. | Portable multi-function inspection systems and methods |
FR2898083B1 (en) * | 2006-03-06 | 2009-02-13 | Peugeot Citroen Automobiles Sa | FUEL CIRCUIT OF A VEHICLE |
FR2917496B1 (en) * | 2007-06-13 | 2016-04-01 | Peugeot Citroen Automobiles Sa | METHOD FOR IDENTIFYING FUEL PRESENT IN A RESERVOIR OF A MOTOR VEHICLE |
US8792611B2 (en) | 2008-09-30 | 2014-07-29 | Ohmart Corporation (The) | Single well nuclear density gauge |
US7986766B2 (en) * | 2008-09-30 | 2011-07-26 | Ohmart/Vega Corporation | Single well nuclear density gauge |
CA2848878C (en) | 2011-09-15 | 2021-01-19 | Vega Americas, Inc. | Nuclear density and level gauge |
GB201402266D0 (en) * | 2014-02-10 | 2014-03-26 | Mechtronic Ltd | Apparatus for determining identity and/or quantity of a fuel |
DE102020209710A1 (en) | 2020-07-31 | 2022-02-03 | Vega Grieshaber Kg | Radiometric measuring device |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6044851A (en) * | 1983-08-22 | 1985-03-11 | Shimadzu Corp | Spectrophotometer |
WO1993020429A1 (en) * | 1992-03-30 | 1993-10-14 | Altamont Technologies, Inc. | Infrared analyzer for determining the concentration of multiple chemical components in a gas or liquid |
WO2000002034A1 (en) * | 1998-07-07 | 2000-01-13 | Miljo-Energi As | Process and device for the measuring of colour and/or particles in a fluid |
WO2001098776A1 (en) * | 2000-06-19 | 2001-12-27 | Siemens Automotive Corporation | Portable fuel analyzer for determining the alcohol content of a mixed fuel |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0526805A (en) * | 1991-07-17 | 1993-02-02 | Ngk Spark Plug Co Ltd | Fuel property sensor |
US5569922A (en) * | 1995-07-26 | 1996-10-29 | Boston Advanced Technologies, Inc. | Portable fuel analyzer for the diagnosis of fuel-related problems on-site at the vehicle service bay |
US5696592A (en) * | 1996-12-11 | 1997-12-09 | Kuan; Ching Fu | Immersible apparatus for measuring light penetrability of liquids |
JP2000130240A (en) * | 1998-10-26 | 2000-05-09 | Hitachi Ltd | Automobile provided with oil deterioration diagnostic device |
US6806952B1 (en) * | 2002-06-28 | 2004-10-19 | Bernard A. Kois | Inspection and retrieval device |
-
2005
- 2005-07-06 NO NO20053320A patent/NO323486B1/en not_active IP Right Cessation
-
2006
- 2006-07-05 WO PCT/NO2006/000257 patent/WO2007004897A1/en active Application Filing
- 2006-07-05 EP EP06769428.1A patent/EP1907823A4/en not_active Withdrawn
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6044851A (en) * | 1983-08-22 | 1985-03-11 | Shimadzu Corp | Spectrophotometer |
WO1993020429A1 (en) * | 1992-03-30 | 1993-10-14 | Altamont Technologies, Inc. | Infrared analyzer for determining the concentration of multiple chemical components in a gas or liquid |
WO2000002034A1 (en) * | 1998-07-07 | 2000-01-13 | Miljo-Energi As | Process and device for the measuring of colour and/or particles in a fluid |
WO2001098776A1 (en) * | 2000-06-19 | 2001-12-27 | Siemens Automotive Corporation | Portable fuel analyzer for determining the alcohol content of a mixed fuel |
Non-Patent Citations (1)
Title |
---|
See also references of WO2007004897A1 * |
Also Published As
Publication number | Publication date |
---|---|
WO2007004897A1 (en) | 2007-01-11 |
EP1907823A4 (en) | 2014-07-09 |
NO323486B1 (en) | 2007-05-21 |
NO20053320L (en) | 2007-01-08 |
NO20053320D0 (en) | 2005-07-06 |
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Legal Events
Date | Code | Title | Description |
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
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17P | Request for examination filed |
Effective date: 20080206 |
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AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR |
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RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: CLEAN FUEL AS |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: MORTENSEN, ALF |
|
DAX | Request for extension of the european patent (deleted) | ||
A4 | Supplementary search report drawn up and despatched |
Effective date: 20140612 |
|
RIC1 | Information provided on ipc code assigned before grant |
Ipc: G01N 21/25 20060101AFI20140605BHEP Ipc: G01N 21/85 20060101ALI20140605BHEP Ipc: G01N 33/28 20060101ALI20140605BHEP |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 20150113 |