CA2253859A1 - Method and device for producing electromagnetic pulses - Google Patents
Method and device for producing electromagnetic pulses Download PDFInfo
- Publication number
- CA2253859A1 CA2253859A1 CA002253859A CA2253859A CA2253859A1 CA 2253859 A1 CA2253859 A1 CA 2253859A1 CA 002253859 A CA002253859 A CA 002253859A CA 2253859 A CA2253859 A CA 2253859A CA 2253859 A1 CA2253859 A1 CA 2253859A1
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- CA
- Canada
- Prior art keywords
- resonant
- chamber
- electromagnetic
- resonant chamber
- control 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.)
- Abandoned
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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
- G01N27/72—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H11/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties
- G01H11/02—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties by magnetic means, e.g. reluctance
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- Electrochemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Pathology (AREA)
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
- Geophysics And Detection Of Objects (AREA)
Abstract
The object of the invention is to provide a method and device for use in the field of intense electromagnetic pulse generation, for example for investigating or influencing materials structures as well as for use in EMC
investigations, so as to provide a novel technological alternative for developing further areas of application. This object is achieved in that the structure of the core member of the device essentially takes the form of 2 + n (i.e. 5 when n = 3) electromagnetic resonant cavities fitted into one another according to the "Russian doll" principle; and in that the resonant circuit system is connected for circuitry and metrological purposes to the pulse generators (33, 34, 35, 36, 37), used for generation, and to an evaluation and control unit (38) and a vibration-measuring device (40). The invention concerns a method and device for generating electromagnetic pulses on the basis of electrical, magnetic and mechanical interactions between electromagnetically and mechanically oscillatory systems and can be used in fundamental research for materials structure, solid-state physics, material investigations and EMC investigations.
investigations, so as to provide a novel technological alternative for developing further areas of application. This object is achieved in that the structure of the core member of the device essentially takes the form of 2 + n (i.e. 5 when n = 3) electromagnetic resonant cavities fitted into one another according to the "Russian doll" principle; and in that the resonant circuit system is connected for circuitry and metrological purposes to the pulse generators (33, 34, 35, 36, 37), used for generation, and to an evaluation and control unit (38) and a vibration-measuring device (40). The invention concerns a method and device for generating electromagnetic pulses on the basis of electrical, magnetic and mechanical interactions between electromagnetically and mechanically oscillatory systems and can be used in fundamental research for materials structure, solid-state physics, material investigations and EMC investigations.
Description
~ CA 022~38~9 1998-11-06 Device and procedure for generating clcct,omagnetic pulses The invention is a device and procedure for generating electromagnetic pulses onthe basis of electric - magnetic - mechanical interactions between electromagnetic and mechanical oscillatory systems and can be employed in basic research on the structure of matter, solid-state physics, materials testing and electromagnetic compatibility tests.
At the current state of technology, peak current or high-voltage discharges are used in very different transformation and matching variants for generating strong electromagnetic impulses (see relevant publications on electromagnetic compatibility - or electromagnetic pulse - testing equipment).
In the field of electro-mechanical energy conversion to impulse or oscillation generation, a number of procedures are known that work according to the basic principles of electrodynamics or magnetic induction. In other words, they are based on the effects of the Lorentz force as well as on a number of procedures according to electrostatic, piezoelectric or piezomagnetic principles (see relevant publications on ultrasonic generation).
The invention is based on the tasks of a device and a procedure that make possible a new technological variant for developing additional fields of use in the field of generating strong electromagnetic pulses, for example, for explaining and influencing the structures of materials or even applications in electromagnetic compatibility investigations.
These tasks are handled according to the invention concept, as it is defined in the claims 1 and 10.
Additional developments of the invention principle result from the dependent claims.
In the attached drawings, Figure 1 shows a cross-sectional view of the principleconstruction of the core piece of the device: 5 (i.e., 2 + n, with n = 3) electromagnetic solenoid systems interleaved in one another according to the "Matrjoschka" principle (arranged concentrically in one another in an interleaved structure). Figure 2 shows the principle switching and measurement technique connections of the magnetic systems of Fig. 1 with the impulse generators for excitation as well as an evaluation and control unit and a vibration measurement device.
In Fig. 1, a resonant chamber shaped cylindrically externally and hollow internally is _ ~ . . ... . ....
' CA 022~38~9 1998-11-06 shown. In its wall, there is a hollow, cylindrically-shaped cavity for placing the excitation coil 2. In the inner hollow space of this resonant chamber, resonant chamber 6 is located with the same principle structure. Its external dimensions correspond exactly to the internal cylindrically-shaped hollow space of the resonant chamber 1 minus the wall thickness of the dielectric material 3. In its external wall, the excitation coil 7 is arranged in a corresponding hollow space. According to the same "Matrjoschka" reduction principle, the additional resonant chambers 11, 16 and 21 are interleaved in one anotherwith the excitation coils 12,17 and 22. Theinnermost resonant chamber 21 does not have any axial hollow cavity. The resonant chambers 6,11,16 and 21 are separated from one another by the dielectric layers 8,13 and 18.
Ferromagnetic material with the highest degree possible of magnetostridive qualities is used for the resonant chamber structures 1,6,11, 16 and 21. To reduce the eddy current, this can also be plated with sheet metal or the base material can be sintered or baked.
For the electrical connections of the excitation coils, two drill holes each are made in an axial direction including through the above-lying resonant chambers. These are 4 and 5 for resonant chamber 1, 9 and 10 for resonant chamber 6,14 and 15 for resonant chamber 11,19 and 20 for resonant chamber 16, and 24 and 25 for resonant chamber 21.
The external resonant chamber 1 is enclosed in axial direction with the metallicplates 27 and 29, whereby these are separated from the core material by the dielectric material 26 and 28. They are slit and/or drilled to enable electrical supply lines to pass through.
The connections 30 and 31 attached to the metal plates 27 and 28 are connected to coupling and decoupling switch 32.
Fig. 2 shows a schematic example of a switching and measurement technique model of the device constructed in accordance with the invention.
In this model, the excitation coils of the resonant chamber systems 1, 6, 11, 16 and 21 are connected via coupling and decoupling switch 32 with impulse generators 33, 34, 35, 35 and 37, which discharge individual impulses with adjustable impulse ranges between 200 ns and 1 s, with adjustable energy dosing in the grid of 1/100 Ws, with an adjustable precise setting of the time of the application point (leading edge) in a grid of 5 ns, optional positive or negative polarity and the possibility of CA 022~38~9 1998-11-06 simultaneous beats with an optional positive or negative equivalent share.
The setting and selection of these parameters are effected by programmable evaluation and control unit 38. This unit evaluates the measured electrical instantaneous values of the excitation coils 2, 7, 12, 17 and 22 as well as the metal plates 27 and 29 and the measured instantaneous values of the mechanical vibrations of the resonant chamber system using vibration measurement device 40 for influencing the preprogrammable parameters for the impulse generators 33 to 37.
The device constructed in accordance with the invention makes possible a great variety of excitation of the electrical, magnetic and mechanically coupled oscillation systems due to the variation options of the parameters for the impulse generators.
For example, the oscillation systems serve to provide strong electromagnetic pulses at output 41 of coupling and decoupling switch 38 to fulfill the invention task.Additionally, other new application areas can certainly be developed.
At the current state of technology, peak current or high-voltage discharges are used in very different transformation and matching variants for generating strong electromagnetic impulses (see relevant publications on electromagnetic compatibility - or electromagnetic pulse - testing equipment).
In the field of electro-mechanical energy conversion to impulse or oscillation generation, a number of procedures are known that work according to the basic principles of electrodynamics or magnetic induction. In other words, they are based on the effects of the Lorentz force as well as on a number of procedures according to electrostatic, piezoelectric or piezomagnetic principles (see relevant publications on ultrasonic generation).
The invention is based on the tasks of a device and a procedure that make possible a new technological variant for developing additional fields of use in the field of generating strong electromagnetic pulses, for example, for explaining and influencing the structures of materials or even applications in electromagnetic compatibility investigations.
These tasks are handled according to the invention concept, as it is defined in the claims 1 and 10.
Additional developments of the invention principle result from the dependent claims.
In the attached drawings, Figure 1 shows a cross-sectional view of the principleconstruction of the core piece of the device: 5 (i.e., 2 + n, with n = 3) electromagnetic solenoid systems interleaved in one another according to the "Matrjoschka" principle (arranged concentrically in one another in an interleaved structure). Figure 2 shows the principle switching and measurement technique connections of the magnetic systems of Fig. 1 with the impulse generators for excitation as well as an evaluation and control unit and a vibration measurement device.
In Fig. 1, a resonant chamber shaped cylindrically externally and hollow internally is _ ~ . . ... . ....
' CA 022~38~9 1998-11-06 shown. In its wall, there is a hollow, cylindrically-shaped cavity for placing the excitation coil 2. In the inner hollow space of this resonant chamber, resonant chamber 6 is located with the same principle structure. Its external dimensions correspond exactly to the internal cylindrically-shaped hollow space of the resonant chamber 1 minus the wall thickness of the dielectric material 3. In its external wall, the excitation coil 7 is arranged in a corresponding hollow space. According to the same "Matrjoschka" reduction principle, the additional resonant chambers 11, 16 and 21 are interleaved in one anotherwith the excitation coils 12,17 and 22. Theinnermost resonant chamber 21 does not have any axial hollow cavity. The resonant chambers 6,11,16 and 21 are separated from one another by the dielectric layers 8,13 and 18.
Ferromagnetic material with the highest degree possible of magnetostridive qualities is used for the resonant chamber structures 1,6,11, 16 and 21. To reduce the eddy current, this can also be plated with sheet metal or the base material can be sintered or baked.
For the electrical connections of the excitation coils, two drill holes each are made in an axial direction including through the above-lying resonant chambers. These are 4 and 5 for resonant chamber 1, 9 and 10 for resonant chamber 6,14 and 15 for resonant chamber 11,19 and 20 for resonant chamber 16, and 24 and 25 for resonant chamber 21.
The external resonant chamber 1 is enclosed in axial direction with the metallicplates 27 and 29, whereby these are separated from the core material by the dielectric material 26 and 28. They are slit and/or drilled to enable electrical supply lines to pass through.
The connections 30 and 31 attached to the metal plates 27 and 28 are connected to coupling and decoupling switch 32.
Fig. 2 shows a schematic example of a switching and measurement technique model of the device constructed in accordance with the invention.
In this model, the excitation coils of the resonant chamber systems 1, 6, 11, 16 and 21 are connected via coupling and decoupling switch 32 with impulse generators 33, 34, 35, 35 and 37, which discharge individual impulses with adjustable impulse ranges between 200 ns and 1 s, with adjustable energy dosing in the grid of 1/100 Ws, with an adjustable precise setting of the time of the application point (leading edge) in a grid of 5 ns, optional positive or negative polarity and the possibility of CA 022~38~9 1998-11-06 simultaneous beats with an optional positive or negative equivalent share.
The setting and selection of these parameters are effected by programmable evaluation and control unit 38. This unit evaluates the measured electrical instantaneous values of the excitation coils 2, 7, 12, 17 and 22 as well as the metal plates 27 and 29 and the measured instantaneous values of the mechanical vibrations of the resonant chamber system using vibration measurement device 40 for influencing the preprogrammable parameters for the impulse generators 33 to 37.
The device constructed in accordance with the invention makes possible a great variety of excitation of the electrical, magnetic and mechanically coupled oscillation systems due to the variation options of the parameters for the impulse generators.
For example, the oscillation systems serve to provide strong electromagnetic pulses at output 41 of coupling and decoupling switch 38 to fulfill the invention task.Additionally, other new application areas can certainly be developed.
Claims (11)
1. Device for generating electromagnetic pulses on the basis of electric - magnetic -mechanical interactions between electromagnetic and mechanical oscillatory systems, characterized by:
- an electromagnetic resonant chamber (1) that is cylindrically shaped externally in an axial direction and hollow inside. A hollow, cylindrically-shaped cavity is located in the chamber wall, where an excitation coil (2) is placed.
- in the inner cylindrically-shaped hollow space of the outer resonant chamber (1), another resonant chamber (6) is located with the same principle structure (1) containing an excitation coil (7). The chamber's external dimensions correspond exactly to the internal cylindrically-shaped hollow space of the external resonant chamber (1) minus the wall thickness of the dielectric material (3) between the resonant chambers (1, 6), whereby the resonant chambers (3, 6) each contain corematerial and an excitation coil.
- additional resonant chambers (5n - 4 = 11, 16, 21 ...) structured and interleaved in one another according to the same "Matrjoschka" reduction principle with the excitation coils (5n - 3 = 12, 17, 22 ...) and the dielectric layers (5n - 7 = 8, 13, 18 ...) separating the resonant chambers, whereby the innermost resonant chamber does not have any axial hollow cavity.
- two metallic plates (27, 29) that enclose the external resonant chamber in an axial direction, separated respectively by dielectric material (26, 28).
- an electromagnetic resonant chamber (1) that is cylindrically shaped externally in an axial direction and hollow inside. A hollow, cylindrically-shaped cavity is located in the chamber wall, where an excitation coil (2) is placed.
- in the inner cylindrically-shaped hollow space of the outer resonant chamber (1), another resonant chamber (6) is located with the same principle structure (1) containing an excitation coil (7). The chamber's external dimensions correspond exactly to the internal cylindrically-shaped hollow space of the external resonant chamber (1) minus the wall thickness of the dielectric material (3) between the resonant chambers (1, 6), whereby the resonant chambers (3, 6) each contain corematerial and an excitation coil.
- additional resonant chambers (5n - 4 = 11, 16, 21 ...) structured and interleaved in one another according to the same "Matrjoschka" reduction principle with the excitation coils (5n - 3 = 12, 17, 22 ...) and the dielectric layers (5n - 7 = 8, 13, 18 ...) separating the resonant chambers, whereby the innermost resonant chamber does not have any axial hollow cavity.
- two metallic plates (27, 29) that enclose the external resonant chamber in an axial direction, separated respectively by dielectric material (26, 28).
2. Device according to claim 1, characterized in the core material for the resonant chambers (1, 6, 11, 16, 21 ...) that is ferromagnetic material with magnetostrictive qualities to the greatest possible extent.
3. Device according to claim 1 or 2, characterized in core material that is plated with sheet metal to reduce eddy currents.
4. Device according to claims 1 to 3, characterized in sintering or baking the base material of the core material to reduce eddy currents.
5. Device according to claims 1 to 4, characterized in dielectric layers (3, 8, 13, 18, ...; 26, 28) that have the greatest relative dielectric constant e possible.
6. Device according to claims 1 to 5, characterized in n being primarily smaller or equal to 5.
7. Device according to claim 1, characterized in - connection of the excitation coils (2, 7, 12, 17, 22, ...) of the resonant chambers (1, 6, 11, 16, 21, ...) with impulse generators (33, 34, 35, 36, 37, ...).
- impulse generators (33, 34, 35, 36, 37, ...) connected to a programmable evaluation and control unit (38).
- a programmable evaluation and control unit (38) connected to a vibration measurement device (40).
- electromagnetic pulses generated by the device that are decoupled via the output (41) of the coupling and decoupling unit (32).
- impulse generators (33, 34, 35, 36, 37, ...) connected to a programmable evaluation and control unit (38).
- a programmable evaluation and control unit (38) connected to a vibration measurement device (40).
- electromagnetic pulses generated by the device that are decoupled via the output (41) of the coupling and decoupling unit (32).
8. Device according to claim 7, characterized in impulse generators (33, 34, 35, 36, 37, ...) that discharge individual impulses for generating a trigger pattern with - adjustable impulse ranges between 20 ns and 1 s - adjustable energy dosing in a grid of 1/100 Ws - adjustable precise setting of the time of the application point (leading edge)in a basic of 5 ns - optional positive or negative polarity - the possibility of simultaneous beats with an optional positive or negative equivalent share
9. Device according to claims 7 or 8, characterized in setting and selection of the impulse parameters of the impulse generators (33, 34, 35, 36, 37, ...) that are effected by the programmable evaluation and control unit (38) by evaluating the measured electrical instantaneous values of the excitation coils (2, 7, 12, 17, 22 ...) as well as the metal plates (27, 29) and the measured instantaneous values of the mechanical vibrations of the resonant chamber systemusing the vibration measurement device (40).
10. Use of the device according to claim 8, characterized in - first recording triggering patterns or the parameters of time and energy of the triggering impulses to achieve specific self-resonance of the system and - thereafter a great variety of electromagnetic pulses with in turn very different parameters of time and energy are made available at the device output (41) usingvery different coupling options of the specific triggering pattern
11. Use according to claim 10, characterized in avoiding resonance excesses of individual self-excited vibrations that could result in destruction of parts of the device, in which a self-learned algorithm is used in the programmable evaluation and control unit (38), which reacts to such events by predicting trends.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH01152/96A CH687428A5 (en) | 1996-05-07 | 1996-05-07 | Electromagnetic pulse generation device |
| CH1152/96 | 1996-05-07 | ||
| PCT/CH1997/000143 WO1997041970A1 (en) | 1996-05-07 | 1997-04-10 | Method and device for producing electromagnetic pulses |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2253859A1 true CA2253859A1 (en) | 1997-11-13 |
Family
ID=4203703
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002253859A Abandoned CA2253859A1 (en) | 1996-05-07 | 1997-04-10 | Method and device for producing electromagnetic pulses |
Country Status (14)
| Country | Link |
|---|---|
| EP (1) | EP0897327B1 (en) |
| AR (1) | AR007044A1 (en) |
| AT (1) | ATE202957T1 (en) |
| AU (1) | AU2285097A (en) |
| BR (1) | BR9709125A (en) |
| CA (1) | CA2253859A1 (en) |
| CH (1) | CH687428A5 (en) |
| DE (2) | DE59704021D1 (en) |
| DK (1) | DK0897327T3 (en) |
| ES (1) | ES2165597T3 (en) |
| HR (1) | HRP970226A2 (en) |
| PT (1) | PT897327E (en) |
| TW (1) | TW362158B (en) |
| WO (1) | WO1997041970A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003249918A (en) * | 2002-02-25 | 2003-09-05 | Matsushita Electric Ind Co Ltd | Receiver and receiving method |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2444967A (en) * | 1936-03-23 | 1948-07-13 | Submarine Signal Co | Oscillator |
| US2438925A (en) * | 1944-08-18 | 1948-04-06 | Bell Telephone Labor Inc | Magnetostrictive submarine signal transmitter or receiver |
-
1996
- 1996-05-07 CH CH01152/96A patent/CH687428A5/en not_active IP Right Cessation
-
1997
- 1997-04-10 DK DK97915243T patent/DK0897327T3/en active
- 1997-04-10 EP EP97915243A patent/EP0897327B1/en not_active Expired - Lifetime
- 1997-04-10 AU AU22850/97A patent/AU2285097A/en not_active Abandoned
- 1997-04-10 PT PT97915243T patent/PT897327E/en unknown
- 1997-04-10 BR BR9709125A patent/BR9709125A/en not_active Application Discontinuation
- 1997-04-10 DE DE59704021T patent/DE59704021D1/en not_active Expired - Fee Related
- 1997-04-10 ES ES97915243T patent/ES2165597T3/en not_active Expired - Lifetime
- 1997-04-10 AT AT97915243T patent/ATE202957T1/en not_active IP Right Cessation
- 1997-04-10 DE DE19780395T patent/DE19780395D2/en not_active Ceased
- 1997-04-10 CA CA002253859A patent/CA2253859A1/en not_active Abandoned
- 1997-04-10 WO PCT/CH1997/000143 patent/WO1997041970A1/en active IP Right Grant
- 1997-04-28 TW TW086105556A patent/TW362158B/en active
- 1997-05-05 HR HR1152/96A patent/HRP970226A2/en not_active Application Discontinuation
- 1997-05-07 AR ARP970101907A patent/AR007044A1/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| PT897327E (en) | 2001-11-30 |
| DE59704021D1 (en) | 2001-08-16 |
| WO1997041970A1 (en) | 1997-11-13 |
| DE19780395D2 (en) | 2000-05-11 |
| HRP970226A2 (en) | 1998-02-28 |
| BR9709125A (en) | 1999-08-03 |
| AR007044A1 (en) | 1999-10-13 |
| ATE202957T1 (en) | 2001-07-15 |
| EP0897327A1 (en) | 1999-02-24 |
| ES2165597T3 (en) | 2002-03-16 |
| TW362158B (en) | 1999-06-21 |
| AU2285097A (en) | 1997-11-26 |
| CH687428A5 (en) | 1996-11-29 |
| EP0897327B1 (en) | 2001-07-11 |
| DK0897327T3 (en) | 2001-10-22 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Discontinued |