GB1318206A - Inductive coupling - Google Patents
Inductive couplingInfo
- Publication number
- GB1318206A GB1318206A GB1399270A GB1318206DA GB1318206A GB 1318206 A GB1318206 A GB 1318206A GB 1399270 A GB1399270 A GB 1399270A GB 1318206D A GB1318206D A GB 1318206DA GB 1318206 A GB1318206 A GB 1318206A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pole faces
- signal
- winding
- motion
- ferromagnetic core
- 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.)
- Expired
Links
- 230000008878 coupling Effects 0.000 title abstract 2
- 238000010168 coupling process Methods 0.000 title abstract 2
- 238000005859 coupling reaction Methods 0.000 title abstract 2
- 230000001939 inductive effect Effects 0.000 title abstract 2
- 230000005294 ferromagnetic effect Effects 0.000 abstract 2
- 238000004804 winding Methods 0.000 abstract 2
- 239000003990 capacitor Substances 0.000 abstract 1
- 230000005291 magnetic effect Effects 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
- H04B5/20—Near-field transmission systems, e.g. inductive or capacitive transmission systems characterised by the transmission technique; characterised by the transmission medium
- H04B5/24—Inductive coupling
- H04B5/26—Inductive coupling using coils
- H04B5/266—One coil at each side, e.g. with primary and secondary coils
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F38/00—Adaptations of transformers or inductances for specific applications or functions
- H01F38/14—Inductive couplings
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
1318206 Transformers ASSOCIATED ENG Ltd 19 April 1971 [23 March 1970] 13992/70 Heading HIT [Also in Division G1] When a ferromagnetic core 13 passes between the parallel pole faces 11 of another ferromagnetic core 10 and completes the magnetic circuit the inductive coupling allows a signal to be passed from one winding 15 to the other 12. Several cores 13 each connected to its own transducer may be attached to the body 14, spaced so that only one at a time is between the pole faces. One set of pole faces (e.g. 11) is larger than the other so that the ratio of the input and output signals will be constant during part of the motion. The total air gap is 30 thousandths of an inch and limited movement (e.g. 12 thous.) perpendicular to the usual direction of motion does not affect the signal. The transducers may be a variable resistor, inductor, capacitor or a thermocouple feeding the winding through an F.E.T. If the coil 12 is in an oscillator circuit the signal modulates either the amplitude or frequency which is then amplified, filtered &c. and recorded.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1399270 | 1970-03-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1318206A true GB1318206A (en) | 1973-05-23 |
Family
ID=10033060
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1399270A Expired GB1318206A (en) | 1970-03-23 | 1970-03-23 | Inductive coupling |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JPS463343A (en) |
| DE (1) | DE2113991A1 (en) |
| FR (1) | FR2083515B3 (en) |
| GB (1) | GB1318206A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002089354A1 (en) * | 2001-04-27 | 2002-11-07 | Commissariat A L'energie Atomique | Device for signal transmission between two contact-free relatively moving objects |
| WO2010122389A1 (en) * | 2009-04-22 | 2010-10-28 | Panasonic Electric Works Co., Ltd. | Non-contact transmission apparatus |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4354190A (en) * | 1980-04-04 | 1982-10-12 | General Electric Company | Rotor measurement system using reflected load transmission |
| JPS6117076A (en) * | 1984-07-02 | 1986-01-25 | Tech Res & Dev Inst Of Japan Def Agency | Sailing sensor discrimination system |
-
1970
- 1970-03-23 GB GB1399270A patent/GB1318206A/en not_active Expired
-
1971
- 1971-03-23 DE DE19712113991 patent/DE2113991A1/en active Pending
- 1971-03-23 FR FR7110245A patent/FR2083515B3/fr not_active Expired
- 1971-10-28 JP JP1584671A patent/JPS463343A/ja active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002089354A1 (en) * | 2001-04-27 | 2002-11-07 | Commissariat A L'energie Atomique | Device for signal transmission between two contact-free relatively moving objects |
| WO2010122389A1 (en) * | 2009-04-22 | 2010-10-28 | Panasonic Electric Works Co., Ltd. | Non-contact transmission apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2083515B3 (en) | 1973-12-28 |
| FR2083515A3 (en) | 1971-12-17 |
| DE2113991A1 (en) | 1971-10-14 |
| JPS463343A (en) | 1971-10-28 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |