WO2009018750A1

WO2009018750A1 - A generator for producing infrasound wave

Info

Publication number: WO2009018750A1
Application number: PCT/CN2008/071791
Authority: WO
Inventors: Lunhua Yang
Original assignee: Lunhua Yang
Priority date: 2007-08-08
Filing date: 2008-07-29
Publication date: 2009-02-12
Also published as: CN101363698A; CN101363698B

Abstract

A generator for producing infrasound wave, which includes an electromagnetic vibratory generator for forcing the air vibrate to produce the infrasound wave, and a frequency control system for controlling the frequency of the vibratory generator. The vibratory generator comprises a high magnetic permeability long strip core beam (3), a plurality of rare earth permanent-magnet thin sheet provided around the core beam, a high magnetic permeability thin board (4) placed around the sheet and a plurality of layer coils supplied with alternate current provided between them. The coils are connected with a vibratory plate (1) through a nonmagnetic connected rod (2). The coils vibrate along the core beam, thereby drive the vibratory plate vibrating to produce infrasound wave.

Description

Infrasonic wave generator

The invention relates to an infrasonic wave generator, belonging to the technical field of infrasound wave generation, in particular to a technology such as a high power flat panel speaker, which can be used as an infrasound weapon, a super low frequency sound vibrating device or other high power sound source.

Background technique

In the prior art, infrasonic generators have been extensively studied, particularly in the military field. The infrasound wave is used as a weapon of war. The main reason is that the frequency of the infrasound wave is just in the resonance frequency range of the main organs of the human body such as the brain, kidney, heart, liver and lung. Therefore, when the main organs are in strong resonance, it is easy to cause Tears, coma, etc. in the brain, kidney, heart, liver and lungs of major organs can easily cause death or coma. According to relevant information reports, many developed countries such as the United States and France are secretly developing infrasonic weapons in secret. For example, the United States used the "CBV-55B" aviation cluster bomb to make infrasound weapons during the Vietnam War. According to relevant information, there are currently five main types of infrasonic weapons: gas-explosive infrasonic weapons, bomb-type infrasonic weapons, tubular infrasound weapons, Yangsheng sub-sonic weapons, and frequency-sampling (subtractive) infrasound weapons. Although many advanced countries in the world are secretly actively developing infrasonic weapons, the production process is very low in intensity, and it is difficult to form a subsonic weapon that is truly capable of killing.

Another extended application of the infrasonic wave generator is the ultra-low frequency super-high-power acoustic vibration device. The equipment structure of the infrasonic wave generator and the ultra-low frequency super-high-power acoustic vibration device are generally similar. The main difference is that the frequency range of the system is different. The acoustic vibration generated by the ultra-low frequency super-high-power acoustic vibration device is oscillated in the cloud region, and it is easy to form an artificial shear line between the clouds, which causes strong crushing and collision between the water droplets in the cloud. At the same time, the ultra-low frequency acoustic vibration rainers are distributed on the ground. When working at heights, it is easy to push the clouds of water to the colder, forming a heavy rain. However, the existing ultra-low frequency super-high-power acoustic vibration rainers are unable to realize the rain generation due to the low emission power of the ultra-low frequency acoustic vibration.

Therefore, in order to achieve the above dual effects, the object of the present invention is to adopt a new magnetic circuit design to enable the production of an ultra-high power infrasonic wave generating device.

Summary of the invention

The object of the present invention is to overcome the deficiencies of the prior art and provide a secondary power output. Sound generator.

The technical solution adopted by the present invention is: the infrasonic wave generator includes an electromagnetic vibration generator for forcing air vibration to emit an infrasound wave, and a frequency control system for controlling a vibration frequency, the electromagnetic vibration generator including a high magnetic permeability a core pillar, a multi-layer rare earth permanent magnet sheet disposed around the high magnetic pole strip core pillar, and a high magnetic permeability strip sheet disposed on the periphery of the multilayer rare earth permanent magnet sheet, the high magnetic conductive strip core pillar and the inner core A multilayer wire package with a conversion current is interposed between the layer rare earth permanent magnet sheets, between the plurality of rare earth permanent magnet sheets, between the outer rare earth permanent magnet sheets and the high magnetic permeability strips, and the multilayer line The package is connected to a vibrating plate via a non-magnetic connecting rod, and the multi-layered wire package can vibrate back and forth along a high-magnetic magnetic strip core column, thereby driving the vibrating plate to vibrate back and forth to generate an infrasound wave, and the frequency control The system controls the vibration frequency of the vibrating plate by changing the switching frequency of the current direction to control the vibration frequency of the multi-layer wire package.

The invention has the beneficial effects of: adopting a new magnetic circuit design to manufacture a subsonic wave generating device with high power output, the subsonic wave generating device can be applied not only in the military field, but also to the ultra low frequency super high power acoustic vibration device. It can also provide an excellent means for all human beings to transform the environment of nature. At the same time, the present invention can also provide a high-power sound source generator for oil exploration and marine search for objects. However, since the present invention can be applied to infrasonic weapons, there is a potential danger of causing a large number of casualties during the test and use. Therefore, it is recommended that the device should be tested and manufactured within the scope of the military pipe, and the vibration frequency should be controlled in the main organ resonance of the human body. Outside the frequency range.

The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

DRAWINGS

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic view showing the structure of an electromagnetic vibration generator according to an embodiment of the present invention.

1 is a vibrating plate; 2 is a non-magnetic connecting rod; 3 is a high magnetic conductive long strip core; 4 is a high magnetic conductive strip; Fl, F2, F3 are rare earth permanent magnet sheets located in different layers.

Figure 2 is a cross-sectional view taken along line A - A of Figure 1;

1 is a vibrating plate; 2 is a non-magnetic connecting rod; 3 is a high magnetic conductive long strip core; 4 is a high magnetic conductive strip; 5 is a multi-layer wire package, S, S ' is a two-layer multi-layer wire package Two common lead lines, P is the connection point of two sets of multi-layer wire packs; 6 is a non-magnetic pad; Fl, F2, F3 are rare earth permanent magnet sheets located in different layers.

FIG. 3 is a schematic diagram of beam convergence according to the present invention using an electronic phased array technology.

Al, A2, A3, A4, A5, A6, A7, A8 represent the phased array layout of multiple electromagnetic vibration generators, d represents the distance between each electromagnetic vibration generator, f focus, H represents the focus to the electromagnetic vibration generator Group The distance from the center point of the body.

4 is a cross-sectional view of a magnetic line of a set of multilayer wire packages in accordance with an embodiment of the present invention.

2 is a non-magnetic connecting rod; 3 is a high magnetic conductive long strip core; 4 is a high magnetic conductive strip; 5 is a multi-layer wire package;

7 is a small strip of small strips; Fl, F2, F3 are rare earth permanent magnet sheets located in different layers.

Figure 5 is a cross-sectional view showing the magnetic field lines of another set of multilayer wire packages in accordance with an embodiment of the present invention.

Figure 6 is a circuit diagram of a bistable oscillator circuit in accordance with an embodiment of the present invention.

LI, L2 are relays (coil part), Rl, R2 are resistors, Cl, C2 are capacitors, XI,

X2 is a crystal triode.

Fig. 7 is a current direction transition diagram of an embodiment of the present invention.

5 is a multi-layer wire package, S, S ' are two common lead wires of two sets of multi-layer wire packages; L1 ' and L2 ' are respectively converted joints of relays L1 and L2.

Figure 8 is a series connection diagram of a plurality of electromagnetic vibration generators in accordance with an embodiment of the present invention.

1 is a vibrating plate; 2 is a non-magnetic connecting rod; 3 is a high magnetic conductive long strip core; 4 is a high magnetic conductive strip; F F2, F3 are rare earth permanent magnet sheets located in different layers.

detailed description

The infrasonic wave generator of the present invention comprises an electromagnetic vibration generator for forcing air vibration to emit an infrasound wave and a frequency control system for controlling a vibration frequency, the electromagnetic vibration generator comprising a high magnetic permeability strip core 3, disposed on a multi-layer rare earth permanent magnet sheet around the high magnetic conductive strip core 3 and a high magnetic permeability strip 4 disposed on the periphery of the multilayer rare earth permanent magnet sheet, the high magnetic conductive strip core 3 and the inner layer rare earth permanent Between the magnetic sheets, between the plurality of rare earth permanent magnet sheets, between the outer rare earth permanent magnet sheets and the high magnetic permeability strip 4, a multi-layer wire package 5 through which a current is applied is provided, and the multilayer package 5 is connected to a vibrating plate 1 via the non-magnetic connecting rod 2, in the embodiment, the non-magnetic connecting rod 2 is made of a non-magnetic stainless steel rod, and the multi-layered wire package 5 can be along the high magnetic conductive strip post 3 The large thrust is vibrated back and forth, thereby causing the vibrating plate 1 to vibrate back and forth to generate an infrasound wave. The frequency control system controls the vibration frequency of the multi-layer wire package by changing the switching frequency of the current direction, thereby controlling the vibration frequency of the vibrating plate 1.

The magnetic field line in the rectangular frame structure composed of the high magnetic permeability strip core 3, the multilayer rare earth permanent magnet sheet, the multilayer wire package 5, and the high magnetic permeability strip 4 is a high magnetic length at one end of the frame structure Strip core The column 3 starts to diverge onto the high magnetic permeability strip 4 through the multilayer rare earth permanent magnet sheet and the multilayer wire package 5, and passes through the multilayer rare earth permanent magnet sheet from the high magnetic permeability strip 4 at the other end of the frame structure. And the multi-layer wire package 5 is gathered on the high magnetic conductive strip core 3, and the high magnetic conductive strip 4 and the high magnetic long strip core 3 close the magnetic lines at both ends to form a closed magnetic circuit.

The above frequency control system is composed of the bistable oscillator circuit shown in FIG. 6 and the current direction converting circuit shown in FIG. 7. As shown in FIG. 6, the coil of the relay L1, L2 is connected to the line of the bistable oscillator circuit. In part, as shown in Fig. 7, L1' is the conversion contact of relay L1, and L2' is the transformation contact of relay L2. The two sets of multi-layer wire packages 5 are connected to the opposite currents, and as shown in FIG. 6 and FIG. 7, when the relays L1 and L2 are switched between the power-on and power-off states, the switching contacts of the two relays are correspondingly performed. The action is changed so that the current passing through the multilayer wire package 5 is changed.

The multi-layer wire package 5 is divided into two groups and is disposed at two ends of the high magnetic conductive strip core 3, and the two sets of multi-layer wire packages 5 are fixedly connected by the non-magnetic link 2, and the vibration plate 1 is disposed at The overhanging end of the non-magnetic link 2.

The high magnetic permeability strip core 3 and the inner rare earth permanent magnet sheet, between the multilayer rare earth permanent magnet sheets, the outer rare earth permanent magnet sheet and the high magnetic conductive strip 4 pass the nonmagnetic spacer 6 The connection is fixed.

The multi-layer wire package 5 in two or more electromagnetic vibration generators is connected in series via the non-magnetic link 2, and the overhanging end of the non-magnetic link 2 is connected with the vibration plate 1, and then the electronic phased array focusing technique is used. The position of the electromagnetic vibration generator is arranged to form a shock wave of the focused beam to combine to enhance the intensity of the transmitted shock wave.

The technical solution of the present invention is implemented from three aspects:

First, how to achieve new magnetic circuit design, this is the key part;

Second, the power control part;

Third, how to combine to enhance the emission intensity;

The first part is how to realize the new magnetic circuit design. The difficulty lies in the winding of two sets of multi-layer wire package 5 and the spatial structure problems of rare earth permanent magnet flakes and high magnetic permeability long post cores. Fig. 1 and Fig. 2 show the structure of a high magnetic permeability strip core 3, a rare earth permanent magnet sheet, and a high magnetic permeability strip 4 in the electromagnetic vibration generator. 4 and 5 show a cross-sectional view of the magnetic field lines of the two sets of multilayer wire packages 5. In order to better implement the above new magnetic circuit design, the following detailed implementation process is specially made. There are two things to do: prepare the work and wind the wire package and other assembly work.

Ready to work:

1. There must be a better winding machine and a skilled winding worker capable of automatic cable routing. 2. Purchase rare earth permanent magnet sheets with superior technical parameters.

3. After determining the thickness of each layer of rare earth permanent magnet flakes and the gap distance between the pieces, the non-magnetic pad 6 is made, the quantity is large, and then the quick-drying curing glue is prepared (better with the two-component adhesive), Silicone oil and high-strength enameled wire that meets specifications.

4. The galvanized sheet is made of a template larger than the rare earth permanent magnet sheet, and its length is 3 cm longer than that of the rare earth permanent magnet sheet, and its width and thickness are both 0.2 mm, which is similar to that of the rare earth permanent magnet sheet.

5. Prepare a 0.2mm galvanized sheet for the gasket, a total of 8 pieces, the length of the high magnetic length of the long column. The length of the 3 length is more than 3cm, and its width is the same as the width of the four sides of the long column.

Winding wire package and other assembly work: first fix the high magnetic permeability long stem 3 to the two ends of the automatic winding machine. The both sides of the 0.2 mm galvanized sheet gasket are coated with silicone oil, and then attached to the four sides of the side end of the high magnetic conductive strip post 3, and tied tightly. Start winding, can't overlap, after finishing one layer, apply quick-drying curing glue once, don't overdo it, then wrap around the second layer, then apply the curing glue once after winding, when the multilayer cable pack 5 The winding is suspended when the thickness of the layer reaches a gap between the highly magnetic long strip core 3 and the inner rare earth permanent magnet sheet. The inner layer of the rare earth permanent magnet sheet is coated with silicone oil on both sides of the template, and placed on the coil at a suitable position. And the long strips 7 are adhered to the curing glue and placed in the gaps adjacent to the four templates, and then the second layer of the multilayer package 5 is wound, as in the first layer. After winding the wire package, the second layer of the four rare earth permanent magnet sheets is also placed, and the long small gaskets 7 to which the curing glue is adhered are placed at the gaps adjacent to the four templates. Then continue around the third layer until the winding is stopped after the last layer is wound. Cut the lead wire of the enameled wire and take it out. Then, in the same manner, the second group of multi-layer wire packages 5 are wound on the other end of the high-magnetic-length strip-shaped stem 3, and then stopped, and the lead wires of the multi-layer wire package 5 are also taken out. After the two layers of the multi-layer wire package 5 are cured, the respective template and the four galvanized sheet gaskets are respectively pulled out, the corresponding rare earth permanent magnet sheets are placed, and the non-magnetic spacers 6 are respectively placed. It must be done that the two sets of multi-layer wire package 5 can flexibly reciprocate back and forth between the multilayer gaps of the rare earth permanent magnet sheets, and the sliding is free, which is considered to be qualified. Then, the lead wires of the two inner layer coils of the two layers of the multi-layer wire package 5 are connected together (see point P in Fig. 2). The outermost coil lead wires of the two sets of wire packs (such as the S and S ' M乍 common current in and out lines in Figure 2). When two sets of wire packets are connected to the same DC current, when one wire package is forward passing The other line package is reversed. After the two sets of wire package wiring are processed, the non-magnetic pad between the rare earth permanent magnet sheet and the high magnetic permeability strip 4 on the last four sides of the last layer is placed. Block 6, and treated with the curing glue, the non-magnetic pad 6 is fixed and connected, so that the high magnetic conductive long post 3, the plurality of rare earth permanent magnet flakes Fl, F2, F3, F4 and the high magnetic conductive length located in different layers Strip board 4 between the three The non-magnetic pad 6 is solidified to form a solid whole. Once done, it is also guaranteed that the two sets of multi-layer wire packages 5 can swing freely and flexibly between their frames.

Consider the current control system below. The technical solution of the present invention uses a bistable oscillator circuit as shown in Fig. 6 to control the conversion of the DC power source into an alternating current of an adjustable frequency. The wires of the L1 and L2 relays are connected to the collectors of the transistors XI and X2 for conduction and cutoff output. Adjusting the value of the product of C1 and P R1, C2 and R2 changes the bistable oscillation frequency. The current direction of the two sets of multilayer package 5 can be changed by the transformation of the relay contacts L1 ' and L2' as shown in FIG.

The combination of the enhanced infrasonic wave generator emission intensity is then considered in the technical solution of the present invention. First, roughly estimate the amount of thrust generated by a single infrasound generator in vibration. In the two sets of multi-layer wire package 5, the enameled wire area is 0.5mm ² and the direct current is 3 amps. The current direction is perpendicular to the direction of the magnetic field. The magnetic induction intensity is 2.5 Tesla in the strong magnetic field. If both sets of lines are 5 layers, each layer of coil The middle layer is wound around 3 layers, and each side of the coil is 6 cm wide and 4 cm long. The four sides of each layer of the coil are in the gap of the rare earth permanent magnet sheet.

According to the formula of the amperage of the current element in the magnetic field: F= / IBdL

This formula comes from the 387th page of Zhao Kaihua's Electromagnetics, Peking University. The dimensions used here are meters, amps, seconds, Newton, Tesla.

Substituting the above values into the formula:

F=3 X 2.5 X 0.04 X 3 X (0.06/0.0007) X 2 X 4 X 5=3078 Newton

It can be seen from the above formula that the vibration thrust generated by a single infrasonic wave generator has more than 300 kilograms, so that the vibration plate 1 generates a shock wave. If the driving force is not enough, the vibration coils of two or more electromagnetic vibration generators may be connected in series as shown in FIG. 8, that is, a plurality of electromagnetic vibration generators are connected in series through a non-magnetic stainless steel rod. , and then connected to the vibrating plate 1.

In order to form a powerful aerial vibration beam, an electronic phased array aggregation technique is used. This is a relatively mature technology in the use of ultrasonic detection technology. The infrasound wave and the ultrasonic wave are both mechanical vibration waves. The wave speed is the same, many properties are the same, but the frequency is different, so this technology can be borrowed. As shown in Fig. 3, a plurality of vibrating elements are respectively placed at positions of Al, A2, A3, ..., f is the focus, and H is the distance from the focus to the center point of the electromagnetic vibration generator group. Beam focusing can be achieved by appropriately adjusting the distance d between the electromagnetic vibration generators according to the coherence of the mechanical vibration waves. Due to the application of the electronic phased array technology to achieve beam focusing, each of the vibrating elements occupies a large area, especially a super-high-power acoustic vibrating device, so the vehicle-foldable frame structure is adopted for transportation. The above is a preferred embodiment of the present invention, and any changes made by the technical solutions of the present invention are not within the scope of the technical solutions of the present invention.

Claims

Claim

An infrasonic wave generator, comprising: an electromagnetic vibration generator for forcing air vibration to emit an infrasound wave, and a frequency control system for controlling a vibration frequency, the electromagnetic vibration generator including a high magnetic permeability strip core a column, a multi-layer rare earth permanent magnet sheet disposed around the high magnetic conductive strip core column, and a high magnetic permeability strip sheet disposed on the periphery of the multilayer rare earth permanent magnet sheet, the high magnetic conductive strip core column and the inner layer rare earth A multi-layer wire package with a conversion current is interposed between the permanent magnet sheets, between the plurality of rare earth permanent magnet sheets, between the outer rare earth permanent magnet sheets and the high magnetic permeability strips, and the multilayer line package is The non-magnetic connecting rod is connected to a vibrating plate, and the multi-layered wire package can vibrate back and forth along the high-magnetic magnetic strip core column, thereby driving the vibrating plate to vibrate back and forth to generate an infrasound wave, and the frequency control system passes The switching frequency of the current direction is changed to control the vibration frequency of the multilayer wire package, thereby controlling the vibration frequency of the vibration plate.

2. The infrasonic wave generator according to claim 1, wherein: the high magnetic permeability strip core, the multi-layer rare earth permanent magnet sheet, the multi-layer wire package, and the high magnetic thin strip are formed in a rectangular frame structure. The direction of the magnetic field line is that, at one end of the frame structure, the multi-layer rare earth permanent magnet sheet and the multi-layer wire package are scattered from the highly magnetic long strip core column to the high magnetic permeability strip, and the other end of the frame structure is highly guided. The magnetic strip is started by a multi-layer rare earth permanent magnet sheet and a multi-layer wire package to be gathered on the high magnetic conductive strip core column, and the high magnetic conductive strip and the high magnetic strip strip core column close the magnetic lines at both ends to form Close the magnetic circuit.

The infrasonic wave generator according to claim 2, wherein the frequency control system is constituted by a bistable oscillator circuit and a current direction converting circuit.

The infrasonic wave generator according to claim 1, 2 or 3, wherein: the multi-layer wire package is divided into two groups and is disposed at two sides of the high magnetic conductive strip core, the two groups are more The layered wire package is fixedly connected by a non-magnetic link, and the vibration plate is disposed at an overhanging end of the non-magnetic link.

The infrasonic wave generator according to claim 4, wherein: the high magnetic conductive strip core column and the inner layer rare earth permanent magnet sheet, between the multilayer rare earth permanent magnet sheets, and the outer layer rare earth permanent magnet The sheet and the highly magnetically long strip are fixed by a non-magnetic pad connection.

6. The infrasonic wave generator according to claim 5, wherein: the multi-layer wires in the two or more electromagnetic vibration generators are connected in series via the non-magnetic link, and the overhanging end of the non-magnetic link The vibration plate is connected, and the position of the electromagnetic vibration generator is arranged by using an electronic phased array focusing technique to form a focused beam to emit a shock wave to combine and enhance the intensity of the transmitted shock wave.