CN204993280U - High -pressure steep -sided pulse source of tubular nanosecond level - Google Patents
High -pressure steep -sided pulse source of tubular nanosecond level Download PDFInfo
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- CN204993280U CN204993280U CN201520470419.3U CN201520470419U CN204993280U CN 204993280 U CN204993280 U CN 204993280U CN 201520470419 U CN201520470419 U CN 201520470419U CN 204993280 U CN204993280 U CN 204993280U
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Abstract
The utility model discloses a high -pressure steep -sided pulse source of tubular nanosecond level comprises high voltage direct current source, input connector, pulse transmission route, console switch and output connection ware, the input connector is connected by the high -pressure BNC of input and links joint with the input, input high -pressure BNC articulate high voltage direct current source, the output connection ware is by output connection head and output the high pressrue BNC joint, pulse transmission route connects input connection head and output connection head, operation switching system is outside in pulse transmission route, be equipped with the wet reed pipe in order to control high -pressure steep -sided pulse source follower through operation on -off control among the pulse transmission route. The utility model discloses the steep -sided pulse source, small, light in weight can be used to the electroacoustic impulse method and measures among space charge's the test device, the utility model discloses a replace spark gap with wet reed pipe for the weight of power reduces greatly, but controls the highest nanosecond level pulse voltage who is 2000V of amplitude through experimental output pulse width for 1ns.
Description
[technical field]
The utility model belongs to high-voltage pulse technology field, particularly a kind of tubular type nanosecond high pressure steep-sided pulse source.
[background technology]
Recent years, along with the development of science and technology, people have developed new measuring technology, with the challenge of meeting the fast development of industry new standard to bring, such as various signal generator, semiconductor and the communication technology, pulse test technology in a lot of fields in be widely applied.In addition, current high-power ns level pulse generator has become the focus of scientific research, to succeed application at environmental protection, biological field, in military field, except Plasma Stealth uses the high repetitive frequency pulsed power supply of ns level high pressure, microwave weapon, laser weapon etc. is also had all to use this pulse power.
High-voltage pulse generator is applied widely in real life.In electrostatic precipitation, pulse power supply technology is the supply power mode of a kind of advanced person in electrostatic precipitation; In the communications field, be used to ultra broadband UWB wireless communication technology; Also for the distribution of measurement space electric charge; In food sterilizing field, high-pressure pulse electric sterilization is a kind of brand-new non-heat treated method for disinfection; And at medical field, external high voltage pulse can be utilized to discharge and produce seismic wave to pulverize the calculus in human body; Certainly, high-voltage pulse generator also can be applicable to the triggering of some energy storage device mesohigh pulsed discharge switches, ignites the places such as high tension spark gap detonator.
Millimicro second pulse generator has important application in flight time (TOF) technology of electron spectroscopy measurement.SCM Based high-voltage pulse generator, all needs extensive application in the high-pressure pulse electric regulated in generation pulse duration, pulse number, pulse voltage intensity.And for very high resolution radar, spread spectrum technic and other many application needing broadband radiation, ultra-short Pulse Generator is very important, to a certain extent, the formation technology of ultrashort pulse has become the core technology in many broadband applications.
In electrostatic precipitation, the technology such as pulse power supply is the supply power mode of a kind of advanced person, and switch element is the critical component of pulser.High-voltage pulse electric source category has multiple, by the realization of high-voltage pulse power source method its can be divided into mechanical switch, high-pressure solid-state switch formula, and Marx network (Marx generator) etc.Wherein high-pressure solid-state switch formula, and Marx network can realize the burst pulse of nanosecond and very high pulse frequency.
Since the pulse electroacoustic method that Takada professor proposed in nineteen eighty-three, now develop into the measuring technique of a kind of maturation of research solid dielectric Space-charge distribution, its general principle is that the media samples inside of the powered impulse action electric charge that has living space exists, therefore can differential deformation be produced, measure the information that acoustical signal therefrom can obtain distribution of space charge, the shape of measurement sensistivity and resolving power and electric pulse is closely related, therefore voltage impulse generator is the critical component of this device, but traditional voltage impulse generator produces electric pulse by spark gap, its shortcoming is that pulse pulse waveform easily changes.
[utility model content]
The purpose of this utility model is to provide a kind of tubular type nanosecond high pressure steep-sided pulse source, and to solve, existing steep-sided pulse volume source is huge, the labile technical problem of complex structure, impulse waveform.
To achieve these goals, the utility model adopts following technical scheme:
A kind of tubular type nanosecond high pressure steep-sided pulse source, is made up of high voltage direct current source, input connector, pulse transfer path, console switch and out connector; Input connector forms by inputting high pressure BNC connector and inputting connector; Input high pressure BNC connector connects high voltage direct current source; Out connector is made up of output connecting head and output high pressure BNC connector; Pulse transfer path connects input connector and output connecting head; Console switch is arranged at pulse transfer path outside; The wet reed pipe being controlled the output of high pressure steep-sided pulse source by console switch is provided with in pulse transfer path.
The utility model further improves and is: input connector outside is the input copper post shell of two ends perforate; centre is high-field electrode; fill insulant between high-field electrode and input copper post shell; between the high-field electrode of input connector two ends, connect current limiting safeguard resistor, current limiting safeguard resistor two ends are connected with high-field electrode by two input plate electrodes.
The utility model further improves and is: pulse transfer path outside is the copper pipe of 1 meter long; Copper pipe center is high-field electrode, high-field electrode and copper pipe fill insulant; Wet reed pipe is connected in the middle part of high-field electrode in copper pipe.
The utility model further improves and is: the hard-drawn copper stranded conductor of high-field electrode to be diameter be 3mm.
The utility model further improves and is: the caliber of copper pipe is 10mm, and thickness of pipe wall is 2mm.
The utility model further improves and is: pulse transfer path is connected with input connector and out connector by screw thread.
The utility model further improves and is: output connecting head outside is output copper post shell, center is high-field electrode, fill insulant between output copper post shell and high-field electrode, matching connection resistance between the high-field electrode of output connecting head two ends, build-out resistor two end electrodes is connected with high-field electrode by two output plate electrodes.
The utility model further improves and is: current limiting safeguard resistor is the noninductive resistance of 10k Ω; Build-out resistor is the noninductive resistance of 50 Ω.
The utility model further improves and is: the maximum output in high voltage direct current source 2kV, load 2M Ω, peak power output 2W; Input high pressure BNC connector and output high pressure BNC connector are the withstand voltage high pressure BNC connector for 2kV.
The utility model further improves and is: console switch comprises semicircular first magnet of pulse transfer path exterior arrangement two and the second magnet that are arranged on wet reed pipe position.
Relative to prior art, the utility model has following beneficial effect:
A kind of tubular type nanosecond high pressure steep-sided pulse source of the utility model, volume is little, lightweight, can be used in the experimental rig of pulse electroacoustic method measurement space electric charge; The utility model adopts the power supply based on switching circuit to replace original industrial frequency rectifying power supply, spark gap is replaced with wet reed pipe, the weight of power supply is reduced greatly, and be about 1ns through testing exportable pulse duration, amplitude is up to the nanosecond pulse voltage of 2000V.
The utility model easy to carry, simple to operate with test safety, precision is high, it can be applied to the test aspect such as test and verification high frequency probe, electric power system High-Voltage Insulation monitoring, laser technology, microwave technology and electromagnetic compatibility, can improve precision and the accuracy of the application of above-mentioned technology, the generation for hf and hv pulse provides a kind of simple, efficient method for designing.
[accompanying drawing explanation]
Fig. 1 is the structural representation in a kind of tubular type nanosecond of the utility model high pressure steep-sided pulse source;
Fig. 2 is the schematic diagram in high voltage direct current source.
[embodiment]
Refer to shown in Fig. 1, a kind of tubular type nanosecond high pressure steep-sided pulse source of the utility model, is made up of high voltage direct current source, input connector 1, pulse transfer path 2, console switch 3 and out connector 4.
The schematic diagram in high voltage direct current source as shown in Figure 2.High voltage direct current source uses flyback Switching Power Supply, this power supply switches low-voltage direct source by HF switch, change direct current signal into high-frequency signal, and by high-frequency step-up transformer, high frequency low voltage signal is become high-voltage high-frequency signal, finally by rectification circuit, ac high-voltage signal is converted to high-voltage dc signal.This power supply maximum output 2kV, load 2M Ω, peak power output 2W.
Input connector 1 is made up of input high pressure BNC connector 11 and input connector, selects the withstand voltage high pressure BNC connector 11 for 2kV, for being connected with DC high-voltage source in this device.Input connector outside is the input copper post shell 12 of two ends perforate; centre is high-field electrode 23; be insulating material between high-field electrode 23 and input copper post shell 12---polytetrafluoroethylene 13; the current limiting safeguard resistor 15 of 10k Ω is connected between input connector two ends high-field electrode 23; current limiting safeguard resistor 15 is the noninductive resistance not having to go between, and its two ends are connected with high-field electrode 23 by two input plate electrodes 14.
Pulse transfer path 2 outside is the copper pipe 21 of 1 meter long, and caliber is 10mm, and thickness of pipe wall is 2mm; Copper pipe 21 center is high-field electrode 23, and high-field electrode 23 is the hard-drawn copper stranded conductor of 3mm for diameter, is polytetrafluoroethylene 22 between high-field electrode 23 and copper pipe 21.Pulse transfer path 2 is connected with input connector 1 and out connector 4 by screw thread, connects wet reed pipe 24 in the middle part of the high-field electrode 23 in copper pipe 21.
At semicircular first magnet 31 and the second magnet 32 of pulse transfer path 2 exterior arrangement two of wet reed pipe 24 position, namely form console switch 3.When needs export high-voltage pulse, by two magnet near wet reed pipe 24, when wet reed pipe 24 receives magnetic field and rapid closing, thus control the output in high pressure steep-sided pulse source.
Out connector 4 is made up of output connecting head and output high pressure BNC connector 41.Exporting high pressure BNC connector 41 withstand voltage is 2kV, is connected with external equipment.Output connecting head outside is output copper post shell 42, center is high-field electrode 23, be polytetrafluoroethylene 43 between output copper post shell 42 and high-field electrode 23, the build-out resistor 45 of 50 Ω is connected between the high-field electrode of output connecting head two ends, build-out resistor 45 is the noninductive resistance not having to go between, and its two end electrodes is connected with high-field electrode 23 by two output plate electrodes 44.Output connecting head end thinner section is divided and is connected with pulse transfer path 2 by screw thread.
In the utility model, the on/off speed of wet reed pipe 24 can reach nanosecond, impulse waveform is stablized, not easily changes.The utility model adopts 1 meter of long copper pipe, and the coupling utilizing the resistance of the high-field electrode of wherein 1 meter long to carry out outputing signal as wave impedance, makes output pulse reach nanosecond.
Claims (10)
1. a tubular type nanosecond high pressure steep-sided pulse source, is characterized in that, is made up of high voltage direct current source, input connector (1), pulse transfer path (2), console switch (3) and out connector (4);
Input connector (1) is made up of input high pressure BNC connector (11) and input connector; Input high pressure BNC connector (11) connects high voltage direct current source;
Out connector (4) is made up of output connecting head and output high pressure BNC connector (41);
Pulse transfer path (2) connects input connector and output connecting head;
It is outside that console switch (3) is arranged at pulse transfer path (2);
The wet reed pipe (24) exported to control high pressure steep-sided pulse source by console switch (3) control is provided with in pulse transfer path (2).
2. a kind of tubular type nanosecond high pressure steep-sided pulse source according to claim 1; it is characterized in that; input connector outside is input copper post shell (12) of two ends perforate; centre is high-field electrode (23); fill insulant between high-field electrode (23) and input copper post shell (12); between input connector two ends high-field electrode (23), connect current limiting safeguard resistor (15), current limiting safeguard resistor (15) two ends are connected with high-field electrode (23) by two input plate electrodes (14).
3. a kind of tubular type nanosecond high pressure steep-sided pulse source according to claim 1, is characterized in that, pulse transfer path (2) outside is the copper pipe (21) of 1 meter long; Copper pipe (21) center is high-field electrode (23), high-field electrode (23) and copper pipe (21) fill insulant; High-field electrode (23) middle part in copper pipe (21) connects wet reed pipe (24).
4. a kind of tubular type nanosecond high pressure steep-sided pulse source according to claim 2, is characterized in that, high-field electrode (23) for diameter be the hard-drawn copper stranded conductor of 3mm.
5. a kind of tubular type nanosecond high pressure steep-sided pulse source according to claim 3, it is characterized in that, the caliber of copper pipe (21) is 10mm, and thickness of pipe wall is 2mm.
6. a kind of tubular type nanosecond high pressure steep-sided pulse source according to claim 3, it is characterized in that, pulse transfer path (2) is connected with input connector (1) and out connector (4) by screw thread.
7. a kind of tubular type nanosecond high pressure steep-sided pulse source according to claim 2, it is characterized in that, output connecting head outside is output copper post shell (42), center is high-field electrode (23), fill insulant between output copper post shell (42) and high-field electrode (23), matching connection resistance (45) between the high-field electrode of output connecting head two ends, build-out resistor (45) two end electrodes is connected with high-field electrode (23) by two output plate electrodes (44).
8. a kind of tubular type nanosecond high pressure steep-sided pulse source according to claim 7, is characterized in that, the noninductive resistance that current limiting safeguard resistor (15) is 10k Ω; Build-out resistor (45) is the noninductive resistance of 50 Ω.
9. a kind of tubular type nanosecond high pressure steep-sided pulse source according to claim 1, is characterized in that, the maximum output in high voltage direct current source 2kV, load 2M Ω, peak power output 2W; Input high pressure BNC connector (11) and output high pressure BNC connector (41) are the withstand voltage high pressure BNC connector for 2kV.
10. a kind of tubular type nanosecond high pressure steep-sided pulse source according to claim 1, it is characterized in that, console switch (3) comprises semicircular first magnet (31) of pulse transfer path (2) exterior arrangement two being arranged on wet reed pipe (24) position and the second magnet (32).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520470419.3U CN204993280U (en) | 2015-07-02 | 2015-07-02 | High -pressure steep -sided pulse source of tubular nanosecond level |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520470419.3U CN204993280U (en) | 2015-07-02 | 2015-07-02 | High -pressure steep -sided pulse source of tubular nanosecond level |
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| CN204993280U true CN204993280U (en) | 2016-01-20 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105049004A (en) * | 2015-07-02 | 2015-11-11 | 国家电网公司 | Tube-type nanosecond high voltage steep pulse source |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105049004A (en) * | 2015-07-02 | 2015-11-11 | 国家电网公司 | Tube-type nanosecond high voltage steep pulse source |
| CN105049004B (en) * | 2015-07-02 | 2018-03-30 | 国家电网公司 | A kind of tubular type nanosecond high pressure steep-sided pulse source |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240320 Address after: 100031 No. 86 West Chang'an Avenue, Beijing, Xicheng District Patentee after: STATE GRID CORPORATION OF CHINA Country or region after: Zhong Guo Patentee after: STATE GRID SHAANXI ELECTRIC POWER Research Institute Country or region after: China Patentee after: National Network (Xi'an) Environmental Protection Technology Center Co.,Ltd. Address before: 100031 No. 86 West Chang'an Avenue, Beijing, Xicheng District Patentee before: State Grid Corporation of China Country or region before: Zhong Guo Patentee before: STATE GRID SHAANXI ELECTRIC POWER Research Institute |
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| TR01 | Transfer of patent right |