FI20085009A0 - Apparatus and coil arrangement for measuring magnetic particles and the like - Google Patents
Apparatus and coil arrangement for measuring magnetic particles and the likeInfo
- Publication number
- FI20085009A0 FI20085009A0 FI20085009A FI20085009A FI20085009A0 FI 20085009 A0 FI20085009 A0 FI 20085009A0 FI 20085009 A FI20085009 A FI 20085009A FI 20085009 A FI20085009 A FI 20085009A FI 20085009 A0 FI20085009 A0 FI 20085009A0
- Authority
- FI
- Finland
- Prior art keywords
- magnetic particles
- coil arrangement
- measuring magnetic
- coils
- operate
- Prior art date
Links
- 239000006249 magnetic particle Substances 0.000 title abstract 4
- 238000005259 measurement Methods 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
- G01N27/023—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance where the material is placed in the field of a coil
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/12—Measuring magnetic properties of articles or specimens of solids or fluids
- G01R33/1269—Measuring magnetic properties of articles or specimens of solids or fluids of molecules labeled with magnetic beads
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/06—Investigating concentration of particle suspensions
- G01N15/0656—Investigating concentration of particle suspensions using electric, e.g. electrostatic methods or magnetic methods
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/72—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R17/00—Measuring arrangements involving comparison with a reference value, e.g. bridge
Landscapes
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- General Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Dispersion Chemistry (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
Abstract
The invention relates to device for the qualitative or quantitative measurement of magnetic particles, which device (10) includes a coil arrangement (20 - 23), arranged to form an inductance bridge (19), of which coils (20, 21) at least two are arranged to operate as a measuring part (17), on which the magnetic particles (12) to be measured are arrangeable to act simultaneously, and part of which coil arrangement (20 - 23) is arranged to operate as a reference/compensation part (18), and from the signal of which coil arrangement (20 - 23) a change of inductance correlating to the number of magnetic particles is arranged to be detected. The coils of the measuring part are arranged in an axial arrangement relative to each other.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI20085009A FI20085009L (en) | 2007-05-25 | 2008-01-07 | Apparatus and coil arrangement for measuring magnetic particles and corresponding method |
PCT/FI2008/050297 WO2008145813A1 (en) | 2007-05-25 | 2008-05-23 | Device and coil arrangement for measuring magnetic particles and corresponding method |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI20075378A FI20075378A0 (en) | 2007-05-25 | 2007-05-25 | Apparatus for measuring magnetic particles and the like |
FI20085009A FI20085009L (en) | 2007-05-25 | 2008-01-07 | Apparatus and coil arrangement for measuring magnetic particles and corresponding method |
Publications (2)
Publication Number | Publication Date |
---|---|
FI20085009A0 true FI20085009A0 (en) | 2008-01-07 |
FI20085009L FI20085009L (en) | 2008-11-26 |
Family
ID=39004309
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FI20085009A FI20085009L (en) | 2007-05-25 | 2008-01-07 | Apparatus and coil arrangement for measuring magnetic particles and corresponding method |
Country Status (2)
Country | Link |
---|---|
FI (1) | FI20085009L (en) |
WO (1) | WO2008145813A1 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9880118B2 (en) | 2011-05-12 | 2018-01-30 | The Trustees Of Dartmouth College | Planar Probe and system for measuring dielectric properties of biological materials |
JP6210358B2 (en) * | 2013-03-26 | 2017-10-11 | Smc株式会社 | Displacement sensor |
DE102013109467A1 (en) | 2013-08-30 | 2015-03-05 | MRB Forschungszentrum für Magnet - Resonanz - Bayern e.V. | Method and device for analyzing a sample volume comprising magnetic particles |
DE102015008516B4 (en) * | 2015-06-30 | 2017-02-16 | Testo Ag | Measuring arrangement and method for non-contact current measurement |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07248676A (en) * | 1994-03-09 | 1995-09-26 | Konica Corp | Toner density detecting device |
JPH08101167A (en) * | 1994-09-30 | 1996-04-16 | Tokyo Gas Co Ltd | Non-destructive inspection sensor and its manufacture |
US6437563B1 (en) * | 1997-11-21 | 2002-08-20 | Quantum Design, Inc. | Method and apparatus for making measurements of accumulations of magnetically susceptible particles combined with analytes |
US6873152B2 (en) * | 2002-12-30 | 2005-03-29 | General Electric Company | Differential sensor apparatus and method for laminated core fault detection |
GB0410976D0 (en) * | 2004-05-17 | 2004-06-16 | Randox Lab Ltd | Magnetic particle detector system |
-
2008
- 2008-01-07 FI FI20085009A patent/FI20085009L/en not_active Application Discontinuation
- 2008-05-23 WO PCT/FI2008/050297 patent/WO2008145813A1/en active Application Filing
Also Published As
Publication number | Publication date |
---|---|
FI20085009L (en) | 2008-11-26 |
WO2008145813A1 (en) | 2008-12-04 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FD | Application lapsed |