Electromagnetic pulse injection device

Abstract

The invention discloses an electromagnetic pulse injection device, and relates to the field of electromagnetic injection. The electromagnetic pulse injection device comprises an electric pulse generation assembly, a magnetic pulse generation assembly and a coupling injection assembly, wherein the coupling injection assembly comprises a vacuum shielding cavity, a magnetic guide plate and a coupling injection cavity; the electric pulse generation assembly comprises an adjustable power supply assembly, a switch assembly and a controller. According to the electromagnetic pulse injection device, leakage of generated magnetic pulses is reduced by arranging the vacuum shielding cavity, the magnetic pulses are guided into the coupling injection cavity through the magnetic guide plate, the magnetic pulses are injected into the target part through the coupling injection cavity, targeted injection of the electromagnetic pulses is achieved, influences on other parts are avoided, and injection of pulses of different intensities and frequencies can be achieved.

Description

Technical Field

[0001] The present application relates to the technical field of electromagnetic pulse injection, and in particular to an electromagnetic pulse injection device. Background Art

[0002] Electromagnetic pulse (EMP) is a physical phenomenon that is a sudden, broadband, high-intensity pulse of electromagnetic radiation, mainly used to destroy enemy electronic equipment. The maximum duration of an EMP is usually only one second.

[0003] Electromagnetic pulse injection technology can be used to locate partial discharge in distribution cables and provide an electromagnetic pulse simulation environment for electronic device testing. However, existing electromagnetic injection devices cannot inject pulses into a specific target, and usually affect other components during experiments or applications. In addition, most existing electromagnetic pulse injection devices can only inject the same pulse and have a single function. Summary of the invention

[0004] The purpose of the present application is to provide an electromagnetic pulse injection device, which can realize the targeted injection of electromagnetic pulses, avoid the influence on other components, and can realize the injection of pulses of different intensities and frequencies.

[0005] To achieve the above objectives, this application provides the following solutions:

[0006] The present application provides an electromagnetic pulse injection device, which includes: an electric pulse generating component, a magnetic pulse generating component and a coupling injection component, wherein the coupling injection component includes a vacuum shielding chamber, a magnetic guide plate and a coupling injection chamber;

[0007] The electric pulse generating component comprises an adjustable power supply component, a switch component and a controller, wherein the controller is respectively connected to the control end of the adjustable power supply component and the control ends of the switches of each level of the switch component, and the output end of the switch component is connected to the magnetic pulse generating component;

[0008] The vacuum shielding chamber is connected to the coupling injection chamber via the magnetic guide plate;

[0009] The magnetic pulse generating assembly is arranged in the vacuum shielding chamber, the magnetic pulse generating assembly is used to generate magnetic pulses, the coupling injection chamber is used to arrange the target component, and the coupling injection chamber is used to inject the pulses generated by the magnetic pulse generating assembly into the target component.

[0010] According to the specific embodiments provided in this application, this application discloses the following technical effects:

[0011] The present application provides an electromagnetic pulse injection device, which includes: an electric pulse generating component, a magnetic pulse generating component and a coupling injection component, wherein the coupling injection component includes a vacuum shielding chamber, a magnetic guide plate and a coupling injection chamber; the electric pulse generating component includes an adjustable power supply component, a switch component and a controller, wherein the controller is respectively connected to the control end of the adjustable power supply component and the control end of each level of the switch component, and the output end of the switch component is connected to the magnetic pulse generating component; the vacuum shielding chamber is connected to the coupling injection chamber through the magnetic guide plate; the magnetic pulse generating component is arranged in the vacuum shielding chamber, the magnetic pulse generating component is used to generate magnetic pulses, the coupling injection chamber is used to set a target component, and the coupling injection chamber is used to inject the pulse generated by the magnetic pulse generating component into the target component. The present application sets up a vacuum shielding chamber to reduce the leakage of the generated magnetic pulse, and uses the magnetic guide plate to introduce it into the coupling injection chamber, and injects it into the target component from the coupling injection chamber, thereby realizing the targeted injection of electromagnetic pulses, avoiding the influence on other components, and realizing the injection of pulses of different intensities and frequencies. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0013] Figure 1 This is a schematic diagram of the external structure of an electromagnetic pulse injection device provided in one embodiment of the present application;

[0014] Figure 2 This is a structural principle diagram of an electromagnetic pulse injection device provided in one embodiment of the present application;

[0015] Figure 3 This is a schematic diagram of the structure of a control component provided in an embodiment of the present application;

[0016] Figure 4 This is a schematic diagram of the structure of a control component provided in one embodiment of the present application. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0018] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, the present application is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0019] In an exemplary embodiment, an electromagnetic pulse injection device is provided, such as Figure 1 and Figure 2 As shown, the electromagnetic pulse injection device includes: an electric pulse generating component, a magnetic pulse generating component and a coupling injection component, the coupling injection component includes a vacuum shielding chamber, a magnetic guide plate and a coupling injection chamber; the electric pulse generating component includes an adjustable power supply component, a switch component and a controller, the controller is respectively connected to the control end of the adjustable power supply component and the control end of each level of switches of the switch component, and the output end of the switch component is connected to the magnetic pulse generating component; the vacuum shielding chamber is connected to the coupling injection chamber through the magnetic guide plate; the magnetic pulse generating component is arranged in the vacuum shielding chamber, the magnetic pulse generating component is used to generate magnetic pulses, the coupling injection chamber is used to set the target component, and the coupling injection chamber is used to inject the pulses generated by the magnetic pulse generating component into the target component.

[0020] Exemplarily, the electromagnetic pulse in the vacuum shielding chamber of the present application is introduced into the coupling injection chamber by the magnetic guide plate, and then injected into the target component by the coupling injection chamber. In this embodiment, the target component can be a cable, a connector, a connecting fixture, etc., and can also be an electromagnetic pulse simulation space where an electronic device is located.

[0021] When the target component is a cable, a connector or a connecting fixture, an end cover is provided at the end of the coupling injection cavity away from the magnetic conductive plate, and a wire clamping groove is provided on the side wall of the coupling injection cavity, the opening of which faces the end of the coupling injection cavity away from the magnetic conductive plate. When it is a connecting fixture, the end cover can be opened, and the cable connected to the connecting fixture is clamped into the wire clamping groove. The coupling injection cavity and the surface where the connecting fixture is located form a coupling space, and electromagnetic pulses are injected into the connecting fixture in the coupling space. When it is a cable or a connecting part, when the cable or the connecting part is suspended in the air, the end cover can be opened, and the cable or the cable connected to the connecting part is clamped into the wire clamping groove, and the end cover is covered. The coupling injection cavity and the end cover form a coupling space, and electromagnetic pulses are injected into the cable or the connecting part in the coupling space.

[0022] When the target component is an electromagnetic pulse simulation space where an electronic device is located, the opening of the coupling injection cavity at one end away from the magnetic guide plate directly matches the opening of the electromagnetic simulation space to inject electromagnetic pulses into the electromagnetic pulse simulation space.

[0023] As an exemplary implementation of the electromagnetic pulse injection device in the above embodiment, Figure 2As shown, the adjustable power supply component includes an adjustable transformer, a high turns ratio transformer, a rectifier and a boost component connected in sequence; the control end of the adjustable transformer is connected to the controller; the boost component includes an inverter circuit, a current transformer, a voltage doubler rectifier circuit and an energy storage capacitor connected in sequence. Further, the voltage doubler rectifier circuit includes a multi-stage cascaded voltage doubler circuit, and the voltage doubler circuit includes two diodes and two capacitors. The two diodes are respectively arranged at the two ends of the secondary coil of the transformer in the forward and reverse directions, one capacitor is arranged between the cathode of the diode arranged in the forward direction and the voltage doubler circuit of the previous stage, and the other capacitor is arranged between the anode of the diode arranged in the forward direction and the cathode of the diode arranged in the reverse direction. The energy storage capacitor is an energy storage capacitor matrix.

[0024] As an exemplary implementation of the electromagnetic pulse injection device in the above embodiment, Figure 3 As shown, a single-chip microcomputer, a voltage transformer control component and a trigger control component; the single-chip microcomputer is connected to the voltage transformer control component and the trigger control component respectively; the voltage transformer control component is connected to the control end of the adjustable transformer; the voltage transformer control component is used to convert the digital voltage regulation signal output by the single-chip microcomputer into an analog voltage regulation signal, and amplify the analog voltage regulation signal and output it to the adjustable transformer; the trigger control component is connected to the control end of each switch of the switch component, and the trigger control component is used to amplify the pulse signal output by the single-chip microcomputer and output it to the control end of each switch of the switch component. In the switch component, power switches are usually used. Such switches usually have integral performance. When used as switches, spike interference will occur due to the sudden change of the control end. In order to avoid or reduce these interferences, a triangular wave oscillator is set in the embodiment of the present application to convert the pulse signal into a triangular wave to control the switch component. For example, the triangular wave oscillator adopts a 74ls123 chip. When the 74ls123 chip is adopted, its circuit structure is as follows Figure 4 As shown, the triangular wave output by the 74ls123 chip is converted into a trigger signal OUT by the transistor Q21 and output to the control component.

[0025] As an exemplary implementation of the electromagnetic pulse injection device in the above embodiment, Figure 2 As shown, the magnetic pulse generating component includes a coil component and a discharge resistor, the coil component and the discharge resistor are connected in series between the two output ends of the electric pulse generating component, and the coil component, the discharge component and the energy storage capacitor in the electric pulse generating component form an oscillation circuit to generate electromagnetic pulses.

[0026] In order to further adjust the rise time of the electric pulse waveform, the embodiment of the present application also provides a matching module, which includes a matching resistor, a sharpening capacitor and a sharpening switch; one end of the sharpening switch is connected to the electric pulse generating component, the other end of the sharpening switch is connected to one end of the matching resistor, the other end of the matching resistor is connected to the magnetic pulse generating component, one end of the sharpening switch is also connected to one end of the sharpening capacitor, and the other end of the sharpening capacitor is grounded.

[0027] The materials of the structures involved in the embodiments of the present application are not described in detail here, as long as they can meet the shielding or coupling requirements.

[0028] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0029] This article uses specific examples to illustrate the principles and implementation methods of this application. The description of the above embodiments is only used to help understand the method and core ideas of this application. At the same time, for those skilled in the art, according to the ideas of this application, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting this application.

Claims

1. An electromagnetic pulse injection device, characterized in that: The electromagnetic pulse injection device comprises: an electric pulse generating component, a magnetic pulse generating component and a coupling injection component, wherein the coupling injection component comprises a vacuum shielding chamber, a magnetic guide plate and a coupling injection chamber; The electric pulse generating component comprises an adjustable power supply component, a switch component and a controller, wherein the controller is respectively connected to the control end of the adjustable power supply component and the control ends of the switches of each level of the switch component, and the output end of the switch component is connected to the magnetic pulse generating component; The vacuum shielding chamber is connected to the coupling injection chamber via the magnetic guide plate; The magnetic pulse generating assembly is arranged in the vacuum shielding chamber, the magnetic pulse generating assembly is used to generate magnetic pulses, the coupling injection chamber is used to arrange the target component, and the coupling injection chamber is used to inject the pulses generated by the magnetic pulse generating assembly into the target component.

2. The electromagnetic pulse injection device according to claim 1, characterized in that: The adjustable power supply assembly includes an adjustable transformer, a high turns ratio transformer, a rectifier and a boost assembly connected in sequence; The control end of the adjustable transformer is connected to the controller.

3. The electromagnetic pulse injection device according to claim 2, characterized in that: The boost component comprises an inverter circuit, a current transformer, a voltage doubler rectifier circuit and an energy storage capacitor which are connected in sequence.

4. The electromagnetic pulse injection device according to claim 3, characterized in that: The voltage doubler rectifier circuit includes a multi-stage cascaded voltage doubler circuit, which includes two diodes and two capacitors. The two diodes are respectively arranged at the two ends of the secondary coil of the transformer in the forward direction and the reverse direction. One capacitor is arranged between the cathode of the forward-arranged diode and the previous stage of the voltage doubler circuit, and the other capacitor is arranged between the anode of the forward-arranged diode and the cathode of the reverse-arranged diode.

5. The electromagnetic pulse injection device according to claim 3, characterized in that: The energy storage capacitor is an energy storage capacitor matrix.

6. The electromagnetic pulse injection device according to claim 2, characterized in that: The controller comprises: a single chip microcomputer, a voltage transformation control component and a trigger control component; the single chip microcomputer is connected to the voltage transformation control component and the trigger control component respectively; The voltage transformation control component is connected to the control end of the adjustable transformer; the voltage transformation control component is used to convert the digital voltage regulation signal output by the single-chip microcomputer into an analog voltage regulation signal, and amplify the power of the analog voltage regulation signal before outputting it to the adjustable transformer; The trigger control component is connected to the control end of each switch of the switch component, and is used to amplify the power of the pulse signal output by the single-chip microcomputer and then output it to the control end of each switch of the switch component.

7. The electromagnetic pulse injection device according to claim 6, characterized in that: A triangular wave oscillator is also provided between the trigger control component and the control end of the switch component; The triangular wave oscillator is used to convert the power-amplified pulse signal into a triangular wave; The triangle wave oscillator adopts 74ls123 chip.

8. The electromagnetic pulse injection device according to claim 6, characterized in that: The magnetic pulse generating component includes a coil component and a discharge resistor, the coil component and the discharge resistor are connected in series between the two output ends of the electric pulse generating component, and the coil component, the discharge component and the energy storage capacitor in the electric pulse generating component form an oscillation circuit to generate electromagnetic pulses.

9. The electromagnetic pulse injection device according to claim 1, characterized in that: A matching module is also provided between the magnetic pulse generating component and the electrical pulse generating component; The matching module includes a matching resistor, a sharpening capacitor and a sharpening switch; One end of the sharpening switch is connected to the electric pulse generating component, the other end of the sharpening switch is connected to one end of the matching resistor, the other end of the matching resistor is connected to the magnetic pulse generating component, one end of the sharpening switch is also connected to one end of the sharpening capacitor, and the other end of the sharpening capacitor is grounded.

10. The electromagnetic pulse injection device according to claim 1, characterized in that: An end cover is provided at one end of the coupling injection cavity away from the magnetic conductive plate, and a wire clamping groove is provided on the side wall of the coupling injection cavity, wherein the opening of the wire clamping groove faces the end of the coupling injection cavity away from the magnetic conductive plate.

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