GB2283091A - Spectroscopic analysis - Google Patents
Spectroscopic analysis Download PDFInfo
- Publication number
- GB2283091A GB2283091A GB9321539A GB9321539A GB2283091A GB 2283091 A GB2283091 A GB 2283091A GB 9321539 A GB9321539 A GB 9321539A GB 9321539 A GB9321539 A GB 9321539A GB 2283091 A GB2283091 A GB 2283091A
- Authority
- GB
- United Kingdom
- Prior art keywords
- probe
- liquid
- radiation
- spectroscopic analysis
- unit
- 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
Links
- 238000004611 spectroscopical analysis Methods 0.000 title claims abstract description 21
- 239000007788 liquid Substances 0.000 claims abstract description 35
- 239000000523 sample Substances 0.000 claims abstract description 32
- 230000005855 radiation Effects 0.000 claims abstract description 28
- 235000013336 milk Nutrition 0.000 claims abstract description 22
- 239000008267 milk Substances 0.000 claims abstract description 22
- 210000004080 milk Anatomy 0.000 claims abstract description 22
- 238000004458 analytical method Methods 0.000 claims abstract description 21
- 238000000034 method Methods 0.000 claims abstract description 21
- 239000000835 fiber Substances 0.000 claims abstract description 17
- 238000005070 sampling Methods 0.000 claims abstract description 12
- 102000004169 proteins and genes Human genes 0.000 claims abstract description 7
- 108090000623 proteins and genes Proteins 0.000 claims abstract description 7
- 238000010223 real-time analysis Methods 0.000 claims abstract description 5
- 238000010276 construction Methods 0.000 claims description 2
- 238000004497 NIR spectroscopy Methods 0.000 abstract description 2
- 239000003925 fat Substances 0.000 description 5
- 238000005259 measurement Methods 0.000 description 2
- 235000008476 powdered milk Nutrition 0.000 description 2
- 241000283690 Bos taurus Species 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 235000013365 dairy product Nutrition 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012845 near infrared spectroscopy analysis Methods 0.000 description 1
- 238000009928 pasteurization Methods 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 229910052594 sapphire Inorganic materials 0.000 description 1
- 239000010980 sapphire Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 238000010183 spectrum analysis Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- 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
- G01N33/02—Food
- G01N33/04—Dairy products
-
- 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
- G01N21/3577—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light for analysing liquids, e.g. polluted water
-
- 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
- G01N21/359—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light using near infrared light
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biochemistry (AREA)
- Analytical Chemistry (AREA)
- Spectroscopy & Molecular Physics (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
A method for the spectroscopic real time analysis of liquid milk by near infrared spectroscopy comprises transmitting radiation from a spectroscopic analysis unit (12) through fibre optic connections (14) to a sampling probe (10) located in a flow line for fresh milk. Reflected radiation from the probe is transmitted through fibre optic connections to the analysis unit and a linearisation technique is applied to the spectrographic analysis data. The analysis unit (12) is connected to a computer (40) and printer (42) to give a readout of fat, protein and leucocyte levels in the milk. The sampling probe 10 comprises a cylindrical housing containing a rod and a sphere which direct light from the connections (14) through the liquid to a reflector attached at the end of the housing and back to the connections (14). <IMAGE>
Description
TITLE: Apparatus and Method for Spectroscopic Analysis
This invention relates to an apparatus and method. for the spectroscopic analysis of liquids. Particularly, but not exclusively, the invention is concerned with the analysis of milk in liquid form to detect the levels of fats, proteins and leucocvtes therein.
It is current practice to analyse milk from dairy cattle before the milk is subjected to treatment such as e.g. by pasteurisation. Typically, batch samples of milk are taken from a fresh milk reservoir at a milking station and the samples are then dried and sent away for analysis. The results of such analyses may not be available for twenty-four hours or more from the time the samples are taken from the milking station. The analysis is typically carried out by the technique known as near infra-red spectroscopy utilising radiation at a wavelength in the region of 1200 - 2400 nanometres, the object of the analysis being to measure the levels of fats, proteins and leucocytes in the milk.
It is an object of the present invention to provide an apparatus and method for the spectroscopic analysis of liquids whereby, as a particular application, real time analysis of liquid milk may be obtained instead of having to carry out the batch dried milk type of analysis referred to above.
In accordance with a broad aspect of the invention there is provided apparatus for the spectroscopic analysis of liquids comprising a sampling probe mountable in a flow line of liquid to be analysed, a spectroscopic analysis unit, and fibre optic connections between said probe and said unit whereby radiation may be transmitted through a said fibre optic connection from said unit to said probe and reflected from said probe through a said fibre optic connection to said unit; said probe including a reflector a flow passage for the liquid to be analysed and a radiation transmitting element providing a contoured boundary to said flow passage adjacent said reflector whereby, in use, liquid flowing between said boundary and said reflector will be substantially free from bubbles.
Preferably said contoured boundary comprises a curved surface, conveniently a spherical surface, which may be provided at one end of an elongate radiation transmitting element contained within a probe housing, the other end of said element being connected to a said fibre optic connection to a said spectroscopic analysis unit.
The radiation transmitting element is conveniently of multi-part construction comprising an elongate part having one end thereof secured in radiation transmitting proximity to a part, such as a sphere, which provides the said curved surface. Conveniently the elongate part is in the form of a circular cross-section rod having a planar end adjacent the spherical part.
In accordance with another broad aspect of the invention there is provided a method for the spectroscopic analysis of liquids comprising transmitting radiation from a spectroscopic analysis unit through fibre optic connections to a sampling probe in the liquid to be analysed, reflecting radiation from the probe through fibre optic connections to said unit and applying a linearisation technique to the spectrographic analysis data of said reflected radiation produced by said unit.
Such an apparatus and method is of particular application in the real time analysis of liquid milk to measure the quantities of fats, proteins and leucocytes in the milk. A said probe of the apparatus may be mounted in a fresh milk supply conduit at a milking station whereby a real time readout of fat.
protein and leucocyte levels may be obtained thus obviating the twenty-four hour or more delay associated with the visual batch analysis of dried milk taken from the milking station. The use of a linearisation technique i.e. a mathematical technique which involves taking data \ which is inherently non-linear and expressing it linearly, is particularly advantageous in analysing liquid milk for leucocyte levels due to the inherent non-linear spectral analysis produced by the spectrometer.
A linear relationship can thus he established between the data produced by the spectrometer and the actual leucocyte count in the milk.
Other features of the invention will become apparent from the following description given herein solely by way of example with reference to the accompanying drawings wherein:
Figure 1 is a longitudinal cross-sectional view of a sampling probe forming part of the apparatus of the invention, and
Figure 2 is a block diagram of the apparatus of the invention.
Referring firstly to Figure 2, the apparatus comprises essentially a sampling probe 10, a spectrographic analysis unit 12 and fibre optic connections 14 between the unit and the probe. The apparatus of the invention finds particular application in real time near infra-red spectroscopic analysis of fresh milk for the measurement of fat protein and leucocyte levels therein. Thus the apparatus of the invention mav be installed at a milking station with the sampling probe 10 mounted in a fresh milk flow conduit 16.
In order for accurate spectroscopic analysis results to be obtained it is important that the liquid, in this case milk, to be analysed is substantially free of bubbles at the position in the sampling probe where it is subjected to near infra-red radiation. Most liquids flowing in conduits or any other liquid flow passageways are subject to the formation of bubbles and the probe of the apparatus according to the invention is designed so as to cause liquid flowing therethrough to shed its bubbles.
Referring now to Figure 1, the sampling probe 10 comprises a generally cylindrical housing 18 having an external radial flange 20 adjacent one end thereof for clamping around an aperture in a milk flow conduit 16 whereby the probe may extend radially into the conduit. Suitable damping rings and seals (not illustrated) are provided adjacent the clamping flange 20 whereby the housing 18 may be mounted rigidly in liquid-tight engagement around the aperture in the conduit 16. The housing includes a central longitudinally extending through bore of circular cross-section. Said bore opens at the outer end of the housing to a counter-bore 22 of enlarged diameter for receiving fibre optic connections 14 to the spectroscopic analysis unit 12.The other end of the housing 18 includes a reduced diameter spigot part 24 having an external thread thereon to which is secured a reflector housing 26 containing a reflector element 28 having a highly polished planar reflecting surface 30.
A radiation transmitting element in the form of a rod 32 of circular
cross-section is rigidly secured within the housing bore such as by an epoxy resin.
Each end of the rod 32 is planar, the outer end being flush with the base of the
counter-bore 22 and the inner end of the rod being flush with the base of a
counter-bore 34 of circular cross-sectional form provided in the spigot part 24 of the housing. Within this counter-bore 34 there is rigidly secured a radiation transmitting sphere 36 in radiation transmitting proximity to the adjacent planar end of the rod 32. As illustrated, the sphere 36 is in point contact with the centre of the planar end face of the rod 32. The rod 32 and the sphere 36 are each formed of quartz or sapphire or other suitable radiation transmitting material.
The diameter of the sphere 36 is somewhat greater than the axial dimension of the counter-bore 34 within which the sphere is located and, as illustrated, the sphere 36 projects axially outwardly bevond the end of the counterbore 34 to a distance approximating half the radius of the sphere.
The projecting spherical surface of the sphere provides a contoured boundary to a liquid flow passage 38 defined between said surface and the opposed polished surface 30 of the reflector 28. The provision of this smooth curved boundary surface, in this case a spherical surface, in proximity to the smooth planar reflecting surface 30, causes liquid flowing through the passage 38 i.e. in a direction normal to the plane of the paper, to shed any bubbles which may naturally have been induced therein as a result of the liquid flowing through the conduit 16. Radiation transmitted from the analysis unit 12 through the fibre optic connection 14 to the probe 10 may thus be transmitted through the rod 32 and sphere 36 to the reflector 28 and hack to the analysis unit through liquid which does not contain bubbles (or at least insufficient numbers and sizes of bubbles) which might otherwise affect the accuracy and validity of readings obtained from the analysis unit.
The radiation transmitted from the analysis unit 12 to the probe 10 and reflected back from the probe to the analysis unit is conveniently of a near infra-red wavelength e.g. of the order of 1200 - 2400 nanometres. The spectrographic analysis unit 12 may be of the type described in USA patent 4 540 2S2 and may be connected to a computer 40 and printer 42. The unit 12 and computer 40 are suitably calibrated and programmed to apply a linearisation technique to the raw data produced by the spectrometer. Such data may be inherently non-linear, especiallv in respect of leucocyte analysis, and the expression of the data as a linear relationship with the actual leucocyte count in the milk enables an accurate measurement thereof to be obtained.
The features disclosed in the foregoing description, or the following claims, or the accompanying drawings, expressed in their specific forms or in terms of a means for performing the disclosed function, or a method or process for attaining the disclosed result, as appropriate, may, separatelv or in any combination of such features, be utilised for realising the invention in diverse forms thereof.
Claims (13)
1. A method for the spectroscopic analysis of liquids comprising the steps of transmitting radiation from a spectroscopic analysis unit through fibre optic connections to a sampling probe in the liquid to be analysed, reflecting radiation from the probe through fibre optic connections to said unit and applying a linearisation technique to the spectrographic analysis data of said reflected radiation produced by said unit.
2. A method according to claim 1 wherein said radiation is transmitted at near infra-red wavelengths in the region of 1200 to 2400 nanometres.
3. A method according to either one of claims 1 or 2 wherein said spectroscopic analysis comprises the real time analysis of liquid in a flow line of said liquid.
4. A method according to any one of claims 1 to 3 wherein said spectroscopic analysis comprises the real time analysis of liquid milk for fat, protein and leucocyte levels in the milk.
5. A method according to any one of the preceding claims wherein the sampling probe comprises a reflector, a flow passage for liquid to be analysed and a radiation transmitting element providing a contoured boundary to said flow passage adjacent said reflector whereby liquid flowing between said boundary and said reflector is substantially free from bubbles.
6. Apparatus for the spectroscopic analysis of liquids comprising a sampling probe mountable in a flow line of liquid to be analysed, a spectroscopic analysis unit, and fibre optic connections between said probe and said unit whereby radiation may be transmitted through a said fibre optic connection from said unit to said probe and reflected from said probe through a said fibre optic connection to said unit; said probe including a reflector, a flow passage for the liquid to be analysed and a radiation transmitting element providing a contoured boundary to said flow passage adjacent said reflector whereby, in use, liquid flowing between said boundary and said reflector will be substantially free from bubbles.
7. Apparatus according to claim 6 wherein the contoured boundary comprises a curved surface at one end of an elongate radiation transmitting element contained within a probe housing, the other end of said element being connected to a said fibre optic connection to a said spectroscopic analysis unit.
8. Apparatus according to claim 7 wherein said curved surface comprises a spherical surface.
9. Apparatus according to either one of claims 7 or 8 wherein said radiation transmitting element is of multi-part construction comprising an elongate part having one end thereof secured in radiation transmitting proximity to a part providing said curved surface.
10. Apparatus according to claim 9 wherein said elongate part comprises a circular cross-section rod having a planar end adjacent said curved surface.
11. A method for the spectroscopic analysis of liquids substantially as hereinbefore described.
12. Apparatus for the spectroscopic analysis of liquids constructed and arranged substantially as hereinbefore described with reference to the accompanying drawings.
13. Any novel feature or novel combination of features described herein and/or in the accompanying drawings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB9321539A GB2283091B (en) | 1993-10-19 | 1993-10-19 | Apparatus and method for spectroscopic analysis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB9321539A GB2283091B (en) | 1993-10-19 | 1993-10-19 | Apparatus and method for spectroscopic analysis |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| GB9321539D0 GB9321539D0 (en) | 1993-12-08 |
| GB2283091A true GB2283091A (en) | 1995-04-26 |
| GB2283091B GB2283091B (en) | 1997-10-01 |
Family
ID=10743775
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB9321539A Expired - Fee Related GB2283091B (en) | 1993-10-19 | 1993-10-19 | Apparatus and method for spectroscopic analysis |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2283091B (en) |
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2315862A (en) * | 1996-07-29 | 1998-02-11 | Bruker Analytische Messtechnik | Infrared spectroscopic endoscope |
| DE19843553A1 (en) * | 1998-09-23 | 2000-04-13 | Bayer Ag | Measurement arrangement for in-process control; has movable spectroscopic or ultrasound probe fitting in probe chamber that can be inserted in measurement chamber |
| NL1011905C2 (en) * | 1999-04-27 | 2000-10-30 | Co Peratie Rundveeverbetering | Simple, inexpensive, robust measuring head for spectrophotometer useful in direct analysis of e.g. milk, has light-conducting assembly connected to carrier for source or sensor |
| WO2000064242A1 (en) * | 1999-04-27 | 2000-11-02 | Coöperatie Rundveeverbetering Delta U.A. | Measuring head for a device for analysing products |
| EP0721297B1 (en) * | 1994-08-01 | 2001-09-12 | La Federation Francaise De Controle Laitier (F.F.C.L.) | Method for monitoring and controlling milk production at dairy farms |
| WO2002084260A1 (en) * | 2001-04-12 | 2002-10-24 | Westfaliasurge Gmbh | Method and device for controlling the quality and/or optically characterizing milk |
| WO2007010530A1 (en) * | 2005-07-20 | 2007-01-25 | Yissum Research Development Company | Method and device for determining milk quality |
| WO2008004918A1 (en) * | 2006-07-07 | 2008-01-10 | Delaval Holding Ab | System and method for managing animals on a dairy farm |
| WO2009047608A1 (en) * | 2007-10-12 | 2009-04-16 | Sp3H | Spectrometry device for fluid analysis |
| WO2009047607A2 (en) * | 2007-10-12 | 2009-04-16 | Sp3H | Spectrometry device for fluid analysis |
| WO2009047605A1 (en) * | 2007-10-12 | 2009-04-16 | Sp3H | Spectrometry device for fluid analysis |
| WO2009065988A1 (en) * | 2007-11-20 | 2009-05-28 | Universidad De Oviedo | In-line sensor and system for obtaining the fat content of milk |
| DE102009005162A1 (en) * | 2009-01-15 | 2010-07-29 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Optic fiber sensor has a recess at the fiber end, on the optical axis, for a micro ball coated with sensor dyestuff to be bonded in place by an adhesive |
| WO2012072143A1 (en) * | 2010-12-03 | 2012-06-07 | Foss Analytical A/S | Mid-infrared spectral analysis of a flowing heterogeneous material |
| EP2606816A1 (en) * | 2011-12-22 | 2013-06-26 | Koninklijke Philips Electronics N.V. | A method and system for providing an indication as to the amount of milk remaining in a breast during lactation |
| CN105588828A (en) * | 2015-12-16 | 2016-05-18 | 新希望双喜乳业（苏州）有限公司 | Method for quickly detecting butterfat content through Raman spectra |
| WO2017143101A1 (en) * | 2016-02-18 | 2017-08-24 | Broadley-James Corporation | Methods and apparatus for reducing measurement artifacts of sensor measurements |
| EP3388817A1 (en) * | 2017-04-12 | 2018-10-17 | Exner & Tottewitz Besitz GBR | Backscatter sensor for liquid, pasty and/or powdered media and method for measuring optical backscattering in liquid, pasty and/or powdery media |
| NL2023925B1 (en) * | 2019-10-01 | 2021-06-01 | Lely Patent Nv | Food measuring system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4907037A (en) * | 1987-03-27 | 1990-03-06 | Commissariat A L'Energie Atomiqued | Active chemical transducer with optical fibres and reagent supporting means |
| EP0480753A2 (en) * | 1990-10-12 | 1992-04-15 | Tytronics, Inc. | Optical analytical instrument and method |
| EP0494734A2 (en) * | 1991-01-07 | 1992-07-15 | Ford Motor Company Limited | A method and apparatus for determining the composition of a fuel mixture |
| EP0494524A2 (en) * | 1991-01-10 | 1992-07-15 | Imperial Chemical Industries Plc | Monitoring device |
| WO1993003341A1 (en) * | 1991-08-08 | 1993-02-18 | The Dow Chemical Company | Method and apparatus for multivariate characterization of optical instrument response |
| US5223715A (en) * | 1991-09-20 | 1993-06-29 | Amoco Corporation | Process for spectrophotometric analysis |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4540282A (en) * | 1983-03-21 | 1985-09-10 | Isaac Landa | Apparatus for optically analyzing a sample |
-
1993
- 1993-10-19 GB GB9321539A patent/GB2283091B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4907037A (en) * | 1987-03-27 | 1990-03-06 | Commissariat A L'Energie Atomiqued | Active chemical transducer with optical fibres and reagent supporting means |
| EP0480753A2 (en) * | 1990-10-12 | 1992-04-15 | Tytronics, Inc. | Optical analytical instrument and method |
| EP0494734A2 (en) * | 1991-01-07 | 1992-07-15 | Ford Motor Company Limited | A method and apparatus for determining the composition of a fuel mixture |
| EP0494524A2 (en) * | 1991-01-10 | 1992-07-15 | Imperial Chemical Industries Plc | Monitoring device |
| WO1993003341A1 (en) * | 1991-08-08 | 1993-02-18 | The Dow Chemical Company | Method and apparatus for multivariate characterization of optical instrument response |
| US5223715A (en) * | 1991-09-20 | 1993-06-29 | Amoco Corporation | Process for spectrophotometric analysis |
Cited By (36)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0721297B1 (en) * | 1994-08-01 | 2001-09-12 | La Federation Francaise De Controle Laitier (F.F.C.L.) | Method for monitoring and controlling milk production at dairy farms |
| GB2315862A (en) * | 1996-07-29 | 1998-02-11 | Bruker Analytische Messtechnik | Infrared spectroscopic endoscope |
| US6016440A (en) * | 1996-07-29 | 2000-01-18 | Bruker Analytik Gmbh | Device for infrared (IR) spectroscopic investigations of internal surfaces of a body |
| GB2315862B (en) * | 1996-07-29 | 2000-09-13 | Bruker Analytik Gmbh | Device for infrared (IR) spectroscopic investigations of internal surfaces of a body |
| DE19843553A1 (en) * | 1998-09-23 | 2000-04-13 | Bayer Ag | Measurement arrangement for in-process control; has movable spectroscopic or ultrasound probe fitting in probe chamber that can be inserted in measurement chamber |
| DE19843553C2 (en) * | 1998-09-23 | 2001-09-20 | Bayer Ag | Measuring device for in-process control |
| NL1011905C2 (en) * | 1999-04-27 | 2000-10-30 | Co Peratie Rundveeverbetering | Simple, inexpensive, robust measuring head for spectrophotometer useful in direct analysis of e.g. milk, has light-conducting assembly connected to carrier for source or sensor |
| WO2000064242A1 (en) * | 1999-04-27 | 2000-11-02 | Coöperatie Rundveeverbetering Delta U.A. | Measuring head for a device for analysing products |
| WO2002084260A1 (en) * | 2001-04-12 | 2002-10-24 | Westfaliasurge Gmbh | Method and device for controlling the quality and/or optically characterizing milk |
| WO2007010530A1 (en) * | 2005-07-20 | 2007-01-25 | Yissum Research Development Company | Method and device for determining milk quality |
| WO2008004918A1 (en) * | 2006-07-07 | 2008-01-10 | Delaval Holding Ab | System and method for managing animals on a dairy farm |
| US8281745B2 (en) | 2006-07-07 | 2012-10-09 | Delaval Holding Ab | System and method for managing animals on a dairy farm |
| WO2009047607A3 (en) * | 2007-10-12 | 2009-06-25 | Sp3H | Spectrometry device for fluid analysis |
| WO2009047608A1 (en) * | 2007-10-12 | 2009-04-16 | Sp3H | Spectrometry device for fluid analysis |
| FR2922304A1 (en) * | 2007-10-12 | 2009-04-17 | Sp3H Soc Par Actions Simplifie | SPECTROMETRY DEVICE FOR ANALYSIS OF A FLUID |
| FR2922303A1 (en) * | 2007-10-12 | 2009-04-17 | Sp3H Soc Par Actions Simplifie | SPECTROMETRY DEVICE FOR ANALYSIS OF A FLUID |
| FR2922306A1 (en) * | 2007-10-12 | 2009-04-17 | Sp3H Soc Par Actions Simplifie | SPECTROMETRY DEVICE FOR ANALYSIS OF A FLUID |
| AU2008309338B2 (en) * | 2007-10-12 | 2014-02-13 | Sp3H | Spectrometry device for fluid analysis |
| WO2009047607A2 (en) * | 2007-10-12 | 2009-04-16 | Sp3H | Spectrometry device for fluid analysis |
| WO2009047605A1 (en) * | 2007-10-12 | 2009-04-16 | Sp3H | Spectrometry device for fluid analysis |
| US7982189B2 (en) | 2007-10-12 | 2011-07-19 | Sp3H | Spectrometer for fluid analysis |
| WO2009065988A1 (en) * | 2007-11-20 | 2009-05-28 | Universidad De Oviedo | In-line sensor and system for obtaining the fat content of milk |
| ES2346494A1 (en) * | 2007-11-20 | 2010-10-15 | Universidad De Oviedo | In-line sensor and system for obtaining the fat content of milk |
| DE102009005162A1 (en) * | 2009-01-15 | 2010-07-29 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Optic fiber sensor has a recess at the fiber end, on the optical axis, for a micro ball coated with sensor dyestuff to be bonded in place by an adhesive |
| EP2646800B1 (en) * | 2010-12-03 | 2019-11-27 | FOSS Analytical A/S | Mid-infrared spectral analysis of a flowing heterogeneous material |
| WO2012072143A1 (en) * | 2010-12-03 | 2012-06-07 | Foss Analytical A/S | Mid-infrared spectral analysis of a flowing heterogeneous material |
| EP2606816A1 (en) * | 2011-12-22 | 2013-06-26 | Koninklijke Philips Electronics N.V. | A method and system for providing an indication as to the amount of milk remaining in a breast during lactation |
| WO2013093739A1 (en) * | 2011-12-22 | 2013-06-27 | Koninklijke Philips Electronics N.V. | A method for providing an indication as to the amount of milk remaining in a breast during lactation |
| US9535047B2 (en) | 2011-12-22 | 2017-01-03 | Koninklijke Philips N.V. | Method for providing an indication as to the amount of milk remaining in a breast during lactation |
| RU2621397C2 (en) * | 2011-12-22 | 2017-06-05 | Конинклейке Филипс Н.В. | Method for provision of data about amount of milk remaining in breast during lactation |
| EP3721791A1 (en) * | 2011-12-22 | 2020-10-14 | Koninklijke Philips N.V. | Breast pump for providing an indication as to the amount of milk remaining in a breast during lactation |
| CN105588828A (en) * | 2015-12-16 | 2016-05-18 | 新希望双喜乳业（苏州）有限公司 | Method for quickly detecting butterfat content through Raman spectra |
| WO2017143101A1 (en) * | 2016-02-18 | 2017-08-24 | Broadley-James Corporation | Methods and apparatus for reducing measurement artifacts of sensor measurements |
| US11137354B2 (en) | 2016-02-18 | 2021-10-05 | Broadley-James Corporation | Methods and apparatus for reducing measurement artifacts of sensor measurements |
| EP3388817A1 (en) * | 2017-04-12 | 2018-10-17 | Exner & Tottewitz Besitz GBR | Backscatter sensor for liquid, pasty and/or powdered media and method for measuring optical backscattering in liquid, pasty and/or powdery media |
| NL2023925B1 (en) * | 2019-10-01 | 2021-06-01 | Lely Patent Nv | Food measuring system |
Also Published As
| Publication number | Publication date |
|---|---|
| GB2283091B (en) | 1997-10-01 |
| GB9321539D0 (en) | 1993-12-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB2283091A (en) | Spectroscopic analysis | |
| Kawano et al. | Development of a calibration equation with temperature compensation for determining the Brix value in intact peaches | |
| AU769396B2 (en) | Method and apparatus for detecting mastitis by using visible light and/or near infrared light | |
| CA2159235C (en) | Apparatus and method for measuring components in a bag | |
| FI91446C (en) | Method and plant for evaluating the freene number of refiner pulp | |
| Melfsen et al. | Accuracy of milk composition analysis with near infrared spectroscopy in diffuse reflection mode | |
| AU769362B2 (en) | Method and apparatus for detecting mastitis by using visible light and/or near infrared light | |
| US6678051B2 (en) | Flow cells utilizing photometric techniques | |
| Woo et al. | Development of a new measurement unit (MilkSpec-1) for rapid determination of fat, lactose, and protein in raw milk using near-infrared transmittance spectroscopy | |
| JP2003518255A (en) | Miniaturized spectrometer | |
| KR20090077992A (en) | Device and method analyzing milk for field | |
| JP2014174162A (en) | Flow cell | |
| JPH0868785A (en) | Connecting capillary | |
| RU2316755C2 (en) | Method and spectrometer for quantitative measurement of component in sample | |
| WO1999063369A1 (en) | Flow cell | |
| WO2002004916A2 (en) | Method and apparatus for determining the composition of fluids | |
| US4643573A (en) | Method for measuring the relative concentration of larger and smaller particles in suspension | |
| US7005090B2 (en) | Method for manufacturing a flow cell | |
| FI115164B (en) | Determination of external water in milk sample or freezing point immersion of milk sample | |
| Kokko et al. | Determination of total root surface area in soil core samples by image analysis | |
| US4571078A (en) | Quick disassembly flowcell | |
| US5420682A (en) | Method and apparatus for compensating spectral data with a color sensor | |
| Tsenkova et al. | Near-infrared spectroscopy for evaluating milk quality | |
| US20220276160A1 (en) | In-situ Near Infrared Sensor Unit and Method of Making the Same | |
| WO2002075284A2 (en) | Flow-through cell |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 19981019 |