WO2000042450A1 - An article identification tag, and a method for the detection thereof - Google Patents
An article identification tag, and a method for the detection thereof Download PDFInfo
- Publication number
- WO2000042450A1 WO2000042450A1 PCT/SE2000/000089 SE0000089W WO0042450A1 WO 2000042450 A1 WO2000042450 A1 WO 2000042450A1 SE 0000089 W SE0000089 W SE 0000089W WO 0042450 A1 WO0042450 A1 WO 0042450A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- tag
- electrically conductive
- frequency
- magnetic
- electric current
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000001514 detection method Methods 0.000 title description 18
- 230000005291 magnetic effect Effects 0.000 claims description 31
- 230000035699 permeability Effects 0.000 claims description 12
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 6
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000004411 aluminium Substances 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- 230000005672 electromagnetic field Effects 0.000 claims description 4
- 229910052742 iron Inorganic materials 0.000 claims description 4
- 239000000696 magnetic material Substances 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 229910000808 amorphous metal alloy Inorganic materials 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 claims 1
- 239000004020 conductor Substances 0.000 description 15
- 230000003287 optical effect Effects 0.000 description 12
- 230000005284 excitation Effects 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000007423 decrease Effects 0.000 description 3
- 230000001939 inductive effect Effects 0.000 description 3
- 229910001092 metal group alloy Inorganic materials 0.000 description 3
- -1 copper or aluminium) Chemical class 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003302 ferromagnetic material Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000002372 labelling Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003550 marker Substances 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000009291 secondary effect Effects 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V15/00—Tags attached to, or associated with, an object, in order to enable detection of the object
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
- G01V3/02—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with propagation of electric current
- G01V3/06—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with propagation of electric current using ac
Definitions
- FIGs 2 and 3 are diagrams illustrating the physical basis behind the method according to the present invention.
- the conductor radius detection criterion represents a discontinuity in the measuring signal, which may be easily distinguished from continuously varying features in the measuring signal, resulting from e.g. frequency-related changes in inductance, reflections, capacitive couplings, etc .
- tubular conductors may be used for article identification tags.
- the thickness of the tube wall will define the discontinuity point.
- One advantage of a tubular conductor over a solid conductor is that the total volume of conductive material will be larger for the same skin-depth saturation point, thereby providing larger tag signal levels.
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- Geophysics (AREA)
- General Physics & Mathematics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Remote Sensing (AREA)
- Environmental & Geological Engineering (AREA)
- Engineering & Computer Science (AREA)
- Burglar Alarm Systems (AREA)
- Geophysics And Detection Of Objects (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
- Measurement Of Resistance Or Impedance (AREA)
- Credit Cards Or The Like (AREA)
- Near-Field Transmission Systems (AREA)
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU23380/00A AU2338000A (en) | 1999-01-18 | 2000-01-18 | An article identification tag, and a method for the detection thereof |
| EP00902252A EP1149313A1 (en) | 1999-01-18 | 2000-01-18 | An article identification tag, and a method for the detection thereof |
| JP2000593969A JP2002535856A (ja) | 1999-01-18 | 2000-01-18 | 物品識別タグとこの物品識別タグの検出方法 |
| BR0007572-8A BR0007572A (pt) | 1999-01-18 | 2000-01-18 | Placa de identificação e método para a detecção da mesma |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE9900119A SE9900119L (sv) | 1999-01-18 | 1999-01-18 | Detekteringsmetod och -anordning |
| SE9900119-0 | 1999-01-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2000042450A1 true WO2000042450A1 (en) | 2000-07-20 |
Family
ID=20414118
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/SE2000/000089 WO2000042450A1 (en) | 1999-01-18 | 2000-01-18 | An article identification tag, and a method for the detection thereof |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP1149313A1 (pt) |
| JP (1) | JP2002535856A (pt) |
| CN (1) | CN1337007A (pt) |
| AU (1) | AU2338000A (pt) |
| BR (1) | BR0007572A (pt) |
| SE (1) | SE9900119L (pt) |
| WO (1) | WO2000042450A1 (pt) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT506311B1 (de) * | 2008-05-08 | 2009-08-15 | Univ Graz Tech | Drahtlose energie- und datenübertragung |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080266101A1 (en) * | 2007-04-27 | 2008-10-30 | Sensormatic Electronics Corporation | Security tag sensor and seccurity meethod for capital assets |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4048558A (en) * | 1975-08-06 | 1977-09-13 | Clark Goodman | Method and apparatus for detecting metal failures in situ |
| US4350883A (en) * | 1979-06-26 | 1982-09-21 | Imphy S.A. | Method of marking and of identifying objects marked by electrically conducting elements |
| US4571592A (en) * | 1983-03-03 | 1986-02-18 | Cubic Corporation | Skin effect antennas |
| US4982158A (en) * | 1988-06-23 | 1991-01-01 | Electric Power Research Institute, Inc. | Method and apparatus for magnetic detection of flaws |
-
1999
- 1999-01-18 SE SE9900119A patent/SE9900119L/ not_active Application Discontinuation
-
2000
- 2000-01-18 WO PCT/SE2000/000089 patent/WO2000042450A1/en not_active Application Discontinuation
- 2000-01-18 EP EP00902252A patent/EP1149313A1/en not_active Withdrawn
- 2000-01-18 BR BR0007572-8A patent/BR0007572A/pt not_active IP Right Cessation
- 2000-01-18 JP JP2000593969A patent/JP2002535856A/ja active Pending
- 2000-01-18 AU AU23380/00A patent/AU2338000A/en not_active Abandoned
- 2000-01-18 CN CN00802899.0A patent/CN1337007A/zh active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4048558A (en) * | 1975-08-06 | 1977-09-13 | Clark Goodman | Method and apparatus for detecting metal failures in situ |
| US4350883A (en) * | 1979-06-26 | 1982-09-21 | Imphy S.A. | Method of marking and of identifying objects marked by electrically conducting elements |
| US4571592A (en) * | 1983-03-03 | 1986-02-18 | Cubic Corporation | Skin effect antennas |
| US4982158A (en) * | 1988-06-23 | 1991-01-01 | Electric Power Research Institute, Inc. | Method and apparatus for magnetic detection of flaws |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT506311B1 (de) * | 2008-05-08 | 2009-08-15 | Univ Graz Tech | Drahtlose energie- und datenübertragung |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1149313A1 (en) | 2001-10-31 |
| SE9900119D0 (sv) | 1999-01-18 |
| CN1337007A (zh) | 2002-02-20 |
| JP2002535856A (ja) | 2002-10-22 |
| AU2338000A (en) | 2000-08-01 |
| BR0007572A (pt) | 2001-11-06 |
| SE9900119L (sv) | 2000-07-19 |
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