WO1998036235A1 - Method and apparatus for the remote clearance of explosive devices - Google Patents
Method and apparatus for the remote clearance of explosive devices Download PDFInfo
- Publication number
- WO1998036235A1 WO1998036235A1 PCT/GB1998/000436 GB9800436W WO9836235A1 WO 1998036235 A1 WO1998036235 A1 WO 1998036235A1 GB 9800436 W GB9800436 W GB 9800436W WO 9836235 A1 WO9836235 A1 WO 9836235A1
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- Prior art keywords
- microwave
- microwave radiation
- emitter
- focusing
- mines
- Prior art date
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41H—ARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL
- F41H11/00—Defence installations; Defence devices
- F41H11/12—Means for clearing land minefields; Systems specially adapted for detection of landmines
Definitions
- the invention relates to a method for clearance of land mines, especially anti-personnel mines, or other unexploded ordnance, and to apparatus, especially mobile apparatus, for performing such methods .
- Anti-personnel mines are of particular concern to civilians and humanitarian mine clearing operations tend to focus on these, but it is obviously also important that antitank mines and other unexploded ordnance are not left behind. APM's are particularly difficult to clear because of their generally small physical size and low metal content.
- Conventional mine clearance techniques first involve the location of specific individual mines using methods such as visual detection by human eye, the use of metal detectors, the use of sniffer dogs, and object finding by means of ground prodding. Once located the mine must then be made safe either by defusing it or by means of a controlled explosion. These methods, particularly for locating mines, are all slow, labour intensive and dangerous because the mine clearer must come into close proximity with the explosive device. Other methods of clearance include the use of vehicles with flails, rollers or ploughs. Again these are dangerous because the rely on direct physical contact with the mine and do not always cause the mine to activate. Furthermore by their action they can distribute unexploded mines over a wide area.
- a mobile apparatus for clearance or deactivation of mines or other unexploded ordnance comprising a mobile carrier having mounted thereon or attached thereto a microwave emitter and focusing means.
- Figure 1 shows the principle components of an antipersonnel mine
- Figure 2 shows the apparatus of the invention mounted on a truck
- Figure 3 shows the apparatus of the present invention mounted on an aircraft
- FIG 4 illustrates one embodiment of the microwave reflector for use in the present invention
- Figure 5 shows an alternative embodiment of the microwave reflector system for use in the present invention
- Figure 6 illustrates one embodiment of a microwave antenna array
- Figure 7 illustrates a further embodiment of a microwave antenna array.
- Figure 1 shows a typical anti-personnel mine comprising a fuze for activating a detonator 12 connected to the explosive 14 surrounded by a casing 16.
- Fuze in this context applied to a mine means the mechanism or circuitry designed to translate the signature of the target into an impulse to initiate the explosive train of a mine.
- Illustrated in Figure 1 is a fuze mechanism comprising a mechanical actuator 10 operated by pressure and a remote sensor 11 and electronic control board 13 to operate on information provided by the remote sensor 11.
- the electronic control board 13 could operate in response to some other impulse such as a sensor internal to the electronic circuitry 13 in the case where no remote sensor 11 is provided.
- the mechanical actuator 10 may be provided which may be as simple as a spring loaded striker retained by a pin.
- the casing 16 It is increasingly common for the casing 16 to contain no metal which makes location of the mine much more difficult using conventional equipment such as a metal detector. However, small metal components remain, in particular in the fuze mechanism. If the electromagnetic field of microwave radiation applied to the mine is sufficiently strong and/or of sufficient duration and/or of an appropriate electromagnetic polarization it can cause arcing, that is the production of sparks, in the fuze mechanism for example in the area of the detonator or electronic control system depending on type. This may either cause the device to explode or may disrupt the mechanism so that the device is rendered safe for subsequent removal. By exploiting the polarisation, frequency and other characteristics of the applied microwave radiation different types of mines and ordnance may be affected such that an element of selectivity may be possible. Alternatively or in addition the microwave radiation may cause heating of the detonator housing or the high explosive 14 itself causing the device to be deactivated.
- the invention can also be used with other forms of mine or unexploded ordnance.
- Some forms of mine and ordnance including both anti-personnel and other types have electronic circuitry which can be affected by the action of microwave radiation due to spurious voltages being induced in the circuitry or by other effects, which may result either in the device exploding prematurely or being rendered safe.
- the microwave radiation is focused into a high intensity spot near the antenna.
- the focusing concentrates the energy into a given area to improve the effectiveness of the mine clearance whilst reducing the power requirements.
- the focused beam can also be directed around the region that is to be swept for mines.
- the size of the spot might be from 0.1 to 40m wide and from 0.1 to 40m deep and it may be directable in a range from 0.5 to 1000m in front of the microwave transmitter. Typical range values for each of the above figures may be 10 meters .
- the microwave radiation can be pulsed.
- the combination of pulsed application and focusing enables a high intensity field to be generated with transportable equipment.
- the equipment may advantageously provide a power density at peak of lMWrn "2 or more, although a lower power density may be suitable for some applications.
- a peak power density of 10 M m "2 or more may be needed, perhaps upto 100 MWm "2 .
- the microwave radiation may be emitted for example in pulses of up to 1ms duration.
- the duration of each pulse may be in the range of from 1 to 10 ⁇ s and typically 2 to 3 ⁇ s.
- the pulses may be emitted with a repeat rate of 1 to 1000 pulses per second.
- FIG. 2 shows a microwave mine clearing apparatus comprising a power generator 18, a microwave emitter 20 and a focusing device 22 mounted on a land vehicle 24.
- Energy produced by the power generator 18 can be stored between pulses and then released in the form of a microwave pulse by the emitter 20. This reduces the size of the generator 18 required for a given intensity of microwave radiation.
- the focusing device 22 produces a spot 26 on the land which includes explosive mines 28 in front of the vehicle 24.
- the spot 26 may be scanned over the land either by the motion of the vehicle 24, or by mechanical or electronic means in the microwave emitter 20 and focusing device 22 or using a combination of these.
- One mode of operation would be to scan an area in front of the vehicle with the vehicle 24 stationary, then incrementally advance the vehicle 24 and then repeat the scan over the next area.
- the scanning for example in front or laterally with respect to the vehicle, could be performed while the vehicle continuously advances.
- Figure 3 illustrates an arrangement similarly to that of Figure 2 except that the power generator 18, microwave emitter 20 and focusing device 22 are mounted on an aircraft 30.
- the aircraft could be of a winged type as illustrated or could for example be a helicopter. Scanning of a region containing mines 28 can be performed in a similar way to that described above for a land vehicle 24. For safety it is desirable that the aircraft 30 be at a sufficient altitude or moving at sufficient speed to avoid any debris from exploding mines 28.
- Figure 4 shows schematically an arrangement for producing focused microwave radiation. It comprises a microwave emitter 32, a microwave feed 34 and a main reflector 36.
- the feed 34 may be a conventional device such as a horn for coupling microwave radiation from the emitter to free space.
- the emitter 32 and feed 34 act approximately as a point source of microwave radiation, therefore to produce a focused spot 26
- the reflector 36 preferably has a surface in the form of or approximating to a portion of an ellipsoid. Further increase in performance may be obtained by further perturbing the reflector surface in a manner analogous to that used in conventional satellite ground station antennas where it is used to achieve higher performance at long distances.
- the shaping is carried out to achieve the maximum degree of focusing close to the antenna.
- the size of the spot 26 can be controlled to some degree by defocusing the apparatus .
- Figure 5 shows schematically a second arrangement for producing a focused spot 26 of microwave radiation.
- a sub- reflector 38 is disposed in the microwave beam path between the feed 34 and the main reflector 36. It is the combined effect of the sub-reflector and main reflector that is now used to produce a focused spot 26 so it is not necessary that either of them has an ellipsoidal surface although one or both of them may do so.
- the sub-reflector has a convex reflecting surface and the main reflector has a concave reflective surface although a concave sub-reflector is also possible.
- a further apparatus for producing a spot 26 of focused microwave radiation near to the antenna is illustrated in Figure 6. It comprises a microwave emitter 32 together with a feed network 40 and an array of microwave antenna 42.
- the array of antenna 42 is disposed on a curved surface such that the sum of the microwave output from the antenna is focused at a spot 26.
- Figure 7 shows an alternative configuration wherein the array of antenna 42 is flat but a phase shifter 44 is provided in the feed to each antenna.
- the systems of any one of Figures 4 to 7 can be vehicle mounted as shown in Figure 2 or 3.
- the reflector or antenna array may be steerable with respect to the vehicle to enable the focused microwave spot 26 to be scanned or swept.
- An arrangement such as that in Figure 7 can enable the focused spot 26 to be steered electronically.
- the microwave emitter 20, 32 preferably has control circuitry for adjusting the frequency of the microwave radiation.
- the wavelength of microwave radiation is typically in the range from 1 to 300mm.
- the emitter, feed, reflector or array may also be adjusted to select the polarization of the microwave radiation.
- Mines may have differing susceptibilities to microwave radiation of various frequency and polarization, therefore these parameters may be varied for optimum effectiveness and/or to provide a degree of selectivity. For example it may be desirable to induce remote self-detonation of APM' ⁇ while not disturbing larger mines the activation of which might cause damage and which may after clearance of the APM's be rendered safe by alternative methods.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Constitution Of High-Frequency Heating (AREA)
Abstract
A method and a mobile apparatus for remote clearance or deactivation of mines (28) or other unexploded ordnance by the application of focused microwave radiation. The apparatus comprises a mobile carrier (24) carrying a power generator (18), a microwave emitter (20) and focusing means (22).
Description
METHOD AND APPARATUS FOR THE REMOTE CLEARANCE OF EXPLOSIVE DEVICES
The invention relates to a method for clearance of land mines, especially anti-personnel mines, or other unexploded ordnance, and to apparatus, especially mobile apparatus, for performing such methods .
There is great concern over the problems caused by explosive devices, such as land mines and unexploded ordnance, in many parts of the world. Devices such as mines are laid during military conflicts, but even after the cessation of hostilities the danger of these devices to civilians remains. The precise location of the devices is often not known but they remain dangerous for many years after they were laid. The problems posed by mines on a society include the destruction and disruption of infrastructure such as roads that are impassable, the loss of agriculture land, the waste of resources and man power in attempting to clear mines, the use of medical and rehabilitation services in the treatment of the victims of mines.
The size of the problem is very large. In 1995 the United Nations estimated that more than 110 million land mines had been laid world-wide, but that only approximately 100,000 are located and destroyed per year while a further 2 to 2.5 million new mines are laid each year.
Anti-personnel mines (APM) are of particular concern to civilians and humanitarian mine clearing operations tend to focus on these, but it is obviously also important that antitank mines and other unexploded ordnance are not left behind. APM's are particularly difficult to clear because of their generally small physical size and low metal content. Conventional mine clearance techniques first involve the location of specific individual mines using methods such as visual detection by human eye, the use of metal detectors, the use of sniffer dogs, and object finding by means of ground prodding. Once located the mine must then be made safe either
by defusing it or by means of a controlled explosion. These methods, particularly for locating mines, are all slow, labour intensive and dangerous because the mine clearer must come into close proximity with the explosive device. Other methods of clearance include the use of vehicles with flails, rollers or ploughs. Again these are dangerous because the rely on direct physical contact with the mine and do not always cause the mine to activate. Furthermore by their action they can distribute unexploded mines over a wide area.
It is an object of the present invention to alleviate at least partially the above problems.
According to the invention there is provided a method for remote clearance or deactivation of mines or other unexploded ordnance by the application of focused microwave radiation.
According to a further aspect of the invention there is provided a mobile apparatus for clearance or deactivation of mines or other unexploded ordnance comprising a mobile carrier having mounted thereon or attached thereto a microwave emitter and focusing means.
The invention will now be described by way of example only with reference to the accompanying drawings in which:-
Figure 1 shows the principle components of an antipersonnel mine;
Figure 2 shows the apparatus of the invention mounted on a truck;
Figure 3 shows the apparatus of the present invention mounted on an aircraft;
Figure 4 illustrates one embodiment of the microwave reflector for use in the present invention; Figure 5 shows an alternative embodiment of the microwave reflector system for use in the present invention;
Figure 6 illustrates one embodiment of a microwave antenna array; and
Figure 7 illustrates a further embodiment of a microwave
antenna array.
Figure 1 shows a typical anti-personnel mine comprising a fuze for activating a detonator 12 connected to the explosive 14 surrounded by a casing 16. Fuze, in this context applied to a mine means the mechanism or circuitry designed to translate the signature of the target into an impulse to initiate the explosive train of a mine. Illustrated in Figure 1 is a fuze mechanism comprising a mechanical actuator 10 operated by pressure and a remote sensor 11 and electronic control board 13 to operate on information provided by the remote sensor 11. Alternatively the electronic control board 13 could operate in response to some other impulse such as a sensor internal to the electronic circuitry 13 in the case where no remote sensor 11 is provided. In a simple APM only the mechanical actuator 10 may be provided which may be as simple as a spring loaded striker retained by a pin.
It is increasingly common for the casing 16 to contain no metal which makes location of the mine much more difficult using conventional equipment such as a metal detector. However, small metal components remain, in particular in the fuze mechanism. If the electromagnetic field of microwave radiation applied to the mine is sufficiently strong and/or of sufficient duration and/or of an appropriate electromagnetic polarization it can cause arcing, that is the production of sparks, in the fuze mechanism for example in the area of the detonator or electronic control system depending on type. This may either cause the device to explode or may disrupt the mechanism so that the device is rendered safe for subsequent removal. By exploiting the polarisation, frequency and other characteristics of the applied microwave radiation different types of mines and ordnance may be affected such that an element of selectivity may be possible. Alternatively or in addition the microwave radiation may cause heating of the detonator housing or the high explosive 14 itself causing the device to be deactivated.
Although discussed in terms of anti-personnel mines, the
invention can also be used with other forms of mine or unexploded ordnance. Some forms of mine and ordnance including both anti-personnel and other types have electronic circuitry which can be affected by the action of microwave radiation due to spurious voltages being induced in the circuitry or by other effects, which may result either in the device exploding prematurely or being rendered safe.
In all of the above cases no direct physical contact with the device is required. It is this aspect which provides the basis of the present invention, the remote inducement of self- detonation or remote disruption or destruction of fuze mechanisms of mines and other ordnance by the application of focused microwave radiation.
In order to facilitate the clearance of mines, by explosion or disruption, using microwave radiation and to enable it to be done remotely, the microwave radiation is focused into a high intensity spot near the antenna. The focusing concentrates the energy into a given area to improve the effectiveness of the mine clearance whilst reducing the power requirements. The focused beam can also be directed around the region that is to be swept for mines. The size of the spot might be from 0.1 to 40m wide and from 0.1 to 40m deep and it may be directable in a range from 0.5 to 1000m in front of the microwave transmitter. Typical range values for each of the above figures may be 10 meters .
Generating high intensity microwave radiation imposes a high power requirement. In order to reduce the power requirement the microwave radiation can be pulsed. The combination of pulsed application and focusing enables a high intensity field to be generated with transportable equipment. The equipment may advantageously provide a power density at peak of lMWrn"2 or more, although a lower power density may be suitable for some applications. For very small anti-personnel mines, a peak power density of 10 M m"2 or more may be needed, perhaps upto 100 MWm"2. The microwave radiation may be emitted for example in pulses of up to 1ms duration. The duration of each pulse
may be in the range of from 1 to 10 μs and typically 2 to 3 μs. The pulses may be emitted with a repeat rate of 1 to 1000 pulses per second.
Figure 2 shows a microwave mine clearing apparatus comprising a power generator 18, a microwave emitter 20 and a focusing device 22 mounted on a land vehicle 24. Energy produced by the power generator 18 can be stored between pulses and then released in the form of a microwave pulse by the emitter 20. This reduces the size of the generator 18 required for a given intensity of microwave radiation. The focusing device 22 produces a spot 26 on the land which includes explosive mines 28 in front of the vehicle 24.
The spot 26 may be scanned over the land either by the motion of the vehicle 24, or by mechanical or electronic means in the microwave emitter 20 and focusing device 22 or using a combination of these. One mode of operation would be to scan an area in front of the vehicle with the vehicle 24 stationary, then incrementally advance the vehicle 24 and then repeat the scan over the next area. Alternatively the scanning, for example in front or laterally with respect to the vehicle, could be performed while the vehicle continuously advances.
When the microwave radiation spot 26 impinges on a mine or other unexploded device, even if it is buried close beneath the surface, the mine is destroyed or disrupted as previously described.
Figure 3 illustrates an arrangement similarly to that of Figure 2 except that the power generator 18, microwave emitter 20 and focusing device 22 are mounted on an aircraft 30. The aircraft could be of a winged type as illustrated or could for example be a helicopter. Scanning of a region containing mines 28 can be performed in a similar way to that described above for a land vehicle 24. For safety it is desirable that the aircraft 30 be at a sufficient altitude or moving at sufficient speed to avoid any debris from exploding mines 28.
Figure 4 shows schematically an arrangement for producing focused microwave radiation. It comprises a microwave emitter 32, a microwave feed 34 and a main reflector 36. The feed 34 may be a conventional device such as a horn for coupling microwave radiation from the emitter to free space. The emitter 32 and feed 34 act approximately as a point source of microwave radiation, therefore to produce a focused spot 26 the reflector 36 preferably has a surface in the form of or approximating to a portion of an ellipsoid. Further increase in performance may be obtained by further perturbing the reflector surface in a manner analogous to that used in conventional satellite ground station antennas where it is used to achieve higher performance at long distances. In the present invention the shaping is carried out to achieve the maximum degree of focusing close to the antenna. The size of the spot 26 can be controlled to some degree by defocusing the apparatus .
Figure 5 shows schematically a second arrangement for producing a focused spot 26 of microwave radiation. In this case a sub- reflector 38 is disposed in the microwave beam path between the feed 34 and the main reflector 36. It is the combined effect of the sub-reflector and main reflector that is now used to produce a focused spot 26 so it is not necessary that either of them has an ellipsoidal surface although one or both of them may do so. As illustrated the sub-reflector has a convex reflecting surface and the main reflector has a concave reflective surface although a concave sub-reflector is also possible.
A further apparatus for producing a spot 26 of focused microwave radiation near to the antenna is illustrated in Figure 6. It comprises a microwave emitter 32 together with a feed network 40 and an array of microwave antenna 42. The array of antenna 42 is disposed on a curved surface such that the sum of the microwave output from the antenna is focused at a spot 26.
Figure 7 shows an alternative configuration wherein the array
of antenna 42 is flat but a phase shifter 44 is provided in the feed to each antenna. By selecting the phase shift of each phase shifter 44 the overall microwave wave-front leaving the device can be shaped and can produce a focused spot 26 from a flat array.
The systems of any one of Figures 4 to 7 can be vehicle mounted as shown in Figure 2 or 3. The reflector or antenna array may be steerable with respect to the vehicle to enable the focused microwave spot 26 to be scanned or swept. An arrangement such as that in Figure 7 can enable the focused spot 26 to be steered electronically.
The microwave emitter 20, 32 preferably has control circuitry for adjusting the frequency of the microwave radiation. The wavelength of microwave radiation is typically in the range from 1 to 300mm. The emitter, feed, reflector or array may also be adjusted to select the polarization of the microwave radiation. Mines may have differing susceptibilities to microwave radiation of various frequency and polarization, therefore these parameters may be varied for optimum effectiveness and/or to provide a degree of selectivity. For example it may be desirable to induce remote self-detonation of APM'ε while not disturbing larger mines the activation of which might cause damage and which may after clearance of the APM's be rendered safe by alternative methods.
While the above embodiments have described methods of focusing it will be appreciated that other methods of producing a focused beam of microwaves to provide a focused spot at a suitable distance for operation of the present invention may be applied. For conventional antennas a focused beam will not form until the far field distance. Thus for a typical narrow beam of perhaps 0.3 degrees at a mid microwave frequency, this beam will not form until between 2 and 4 kms distance from the antenna. For mine clearance in accordance with the present invention shorter focusing distances may be required, typically a few tens of metres, within the conventional near field. At these distances within the near field a conventional antenna
will not focus efficiently, leading to a large, badly focused "spot" of radiation at the mine with attendant low field strength. By perturbing the phase front across the antenna using beam shaping techniques such as described with reference to Figures 4 to 7 the microwave beam can be focused to a close distance, down to a few metres or less, to provide the required field strength at that distance.
Claims
1. A method for remote clearance or deactivation of mines or other unexploded ordnance by the application of focused microwave radiation.
2. A method according to claim 1 wherein clearance or deactivation is achieved by disruption or destruction or premature activation of the normal operating mechanism of the mines or other ordnance.
3. A method according to claim 1 or claim 2 wherein the radiation is selectively controlled to clear a selected type of mine or unexploded ordnance.
4. A method according to any one of claims 1 to 3 , comprising the step of pulsing the microwave radiation.
5. A method according to claim 5, further comprising the step of accumulating energy between pulses.
6. A method according to any one of the preceding claims, further comprising the step of selecting or varying the frequency of the microwave radiation.
7. A method according to any one of the preceding claims, further comprising the step of selecting or varying the polarization of the microwave radiation.
8. A method according to any one of the preceding claims, further comprising the step of scanning the microwave radiation.
9. A method according to claim 6, further comprising the step of advancing the microwave radiation emitter while scanning.
10. A method according to claim 9, wherein the emitter is advanced stepwise.
- lO - ll. A method according to any one of the preceding claims, further comprising the step of focusing the microwave radiation into a region from 0.1 to 40m wide.
12. A method according to any one of the preceding claims, further comprising the step of focusing the microwave radiation into a region from 0.1 to 40m long.
13. A method according to any one of the preceding claims, further comprising the step of focusing the microwave radiation into a region located 0.5 to 1000m from the microwave radiation emitter.
14. A method according to claim 13 , wherein said region is substantially 10m from the emitter.
15. A method according to any one of the preceding claims, further comprising the step of focusing said microwave radiation to produce a peak power density of lMWm"2 or more.
16. A method according to any one of the preceding claims, further comprising the step of focusing said microwave radiation to produce a peak power density of 10 MWm2 or more.
17. A mobile apparatus for clearance or deactivation of mines or other unexploded ordnance comprising a mobile carrier having mounted thereon or attached thereto a microwave emitter and focusing means.
18. An apparatus according to claim 17, wherein the location relative to the carrier of the focused beam of microwaves emitted by said emitter can be adjusted.
19. An apparatus according to claim 17 or 18 , wherein said focusing means comprise a reflector having a surface substantially in the shape of a portion of an ellipsoid.
20. An apparatus according to claims 17 to 19, wherein said focusing means comprises a main reflector and a sub-
reflector.
21. An apparatus according to claim 19 or 20, wherein the or each reflector is steerable.
22. An apparatus according to claim 17 or 18, comprising an array of microwave antenna and a feed network.
23. An apparatus according to claim 22, wherein said array is curved.
24. An apparatus according to claim 22, wherein said array is flat.
25. An apparatus according to claims 22, 23 or 24 further comprising phase shifting means.
26. An apparatus according to claim 25, wherein said phase shifting means are controllable to adjust the direction of the focused microwave beam.
27. An apparatus according to any one of claims 22 to 26, wherein said array is steerable.
28. An apparatus according to any one of claims 17 to
27 wherein said microwave emitter is arranged to emit pulses of microwaves .
29. An apparatus according to any one of claims 17 to 28 further comprising a frequency controller for controlling the frequency of the microwave emission of said emitter.
30. An apparatus according to any one of claims 17 to 29 further comprising a polarization selector for selecting the polarization of the microwave emission of said emitter.
31. An apparatus according to any one of claims 17 to 30, wherein said mobile carrier is a land vehicle.
32. An apparatus according to any one of claims 17 to 30 wherein, said mobile carrier is an aircraft.
33. An apparatus according to claim 32 wherein said mobile carrier is a helicopter.
34. An apparatus arranged to carry out the method according to any one of claims 1 to 16.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU62216/98A AU6221698A (en) | 1997-02-14 | 1998-02-12 | Method and apparatus for the remote clearance of explosive devices |
| GB9918866A GB2336341A (en) | 1997-02-14 | 1998-02-12 | Method and apparatus for the remote clearance of explosive devices |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GBGB9703077.9A GB9703077D0 (en) | 1997-02-14 | 1997-02-14 | Method and apparatus for the remote clearance of explosive devices |
| GB9703077.9 | 1997-02-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO1998036235A1 true WO1998036235A1 (en) | 1998-08-20 |
Family
ID=10807654
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/GB1998/000436 WO1998036235A1 (en) | 1997-02-14 | 1998-02-12 | Method and apparatus for the remote clearance of explosive devices |
Country Status (3)
| Country | Link |
|---|---|
| AU (1) | AU6221698A (en) |
| GB (1) | GB9703077D0 (en) |
| WO (1) | WO1998036235A1 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7987068B2 (en) | 2006-03-30 | 2011-07-26 | The Boeing Company | Explosive device countermeasures |
| US8561515B1 (en) | 2006-08-02 | 2013-10-22 | Xtreme Ads Limited | Method for neutralizing explosives and electronics |
| US8683907B1 (en) | 2011-09-07 | 2014-04-01 | Xtreme Ads Limited | Electrical discharge system and method for neutralizing explosive devices and electronics |
| US9243874B1 (en) | 2011-09-07 | 2016-01-26 | Xtreme Ads Limited | Electrical discharge system and method for neutralizing explosive devices and electronics |
| RU2667257C2 (en) * | 2016-01-11 | 2018-09-18 | Российская Федерация, от имени которой выступает Министерство обороны Российской Федерации | Method for remote mine clearing |
| RU2804752C2 (en) * | 2016-01-11 | 2023-10-05 | Российская Федерация, от имени которой выступает Министерство обороны Российской Федерации | Method for remote mine clearing |
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- 1998-02-12 WO PCT/GB1998/000436 patent/WO1998036235A1/en active Application Filing
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| WO1994021980A1 (en) * | 1993-03-16 | 1994-09-29 | Etienne Lacroix Tous Artifices S.A. | Firing a composition with a microwave generator________________ |
| DE19512537A1 (en) * | 1994-08-24 | 1996-02-29 | Daimler Benz Aerospace Ag | System for detection and removal or detonation of buried mines |
| US5592170A (en) * | 1995-04-11 | 1997-01-07 | Jaycor | Radar system and method for detecting and discriminating targets from a safe distance |
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| US7987068B2 (en) | 2006-03-30 | 2011-07-26 | The Boeing Company | Explosive device countermeasures |
| US8561515B1 (en) | 2006-08-02 | 2013-10-22 | Xtreme Ads Limited | Method for neutralizing explosives and electronics |
| US8887611B2 (en) | 2006-08-02 | 2014-11-18 | Xtreme Ads Limited | Method for neutralizing explosives and electronics |
| US8683907B1 (en) | 2011-09-07 | 2014-04-01 | Xtreme Ads Limited | Electrical discharge system and method for neutralizing explosive devices and electronics |
| US9243874B1 (en) | 2011-09-07 | 2016-01-26 | Xtreme Ads Limited | Electrical discharge system and method for neutralizing explosive devices and electronics |
| US9739573B2 (en) | 2011-09-07 | 2017-08-22 | Xtreme Ads Limited | Electrical discharge system and method for neutralizing explosive devices and electronics |
| US10247525B2 (en) | 2011-09-07 | 2019-04-02 | Xtreme Ads Limited | Electrical discharge system and method for neutralizing explosive devices and electronics |
| RU2667257C2 (en) * | 2016-01-11 | 2018-09-18 | Российская Федерация, от имени которой выступает Министерство обороны Российской Федерации | Method for remote mine clearing |
| RU2804752C2 (en) * | 2016-01-11 | 2023-10-05 | Российская Федерация, от имени которой выступает Министерство обороны Российской Федерации | Method for remote mine clearing |
Also Published As
| Publication number | Publication date |
|---|---|
| GB9703077D0 (en) | 1997-04-02 |
| AU6221698A (en) | 1998-09-08 |
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