CN2400946Y - Picosecond stage spark gap high-voltage discharge switch - Google Patents
Picosecond stage spark gap high-voltage discharge switch Download PDFInfo
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- CN2400946Y CN2400946Y CN 99256107 CN99256107U CN2400946Y CN 2400946 Y CN2400946 Y CN 2400946Y CN 99256107 CN99256107 CN 99256107 CN 99256107 U CN99256107 U CN 99256107U CN 2400946 Y CN2400946 Y CN 2400946Y
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Abstract
The utility model belongs to the technical field of a spark-gap high-voltage discharge switch, and is especially suitable for high-power picosecond-grade pulse generators. The utility model comprises a step motor and a shaper, wherein the step motor is used for driving a high-voltage main electrode to exactly displace, the shaper is used for enhancing the steepness of a pulse rising edge, and a spark sphere-gap high-voltage switch forms three discharge gaps. The front porch technique dynamic states of native and foreign are real-time traced in the development, the utility model reaches the technical indexes by tackling key problems that the maximum bearing voltage is 60000 volts, the maximum impulse current is 3000 amperes and the time of switching on of the discharge switch is 350 picoseconds. The utility model has important and special effect in scientific testing experiments and tests of strong electromagnetic pulse.
Description
The utility model belongs to gap high-voltage discharging switch technical field.Be specially adapted in the high-power picosecond level pulse generating unit.
Along with development of modern science and technology, in the science relevant with strong electromagnetic pulse examination experiment and test, power pulser shows special effect, and high-voltage discharging switch then is that one of key technology in the dress device and critical elements take place highpowerpulse.The time of discharge switch has determined the composition of spark gap medium, has also determined the overvoltage degree of gap breakdown voltage, and also the parameter and the rising edge of a pulse steepness of paired pulses generator play decisive role simultaneously.In the arrester switch prior art before the utility model, exist to be difficult to accurately regulate the trigger voltage amplitude and the step angle that boosts, be difficult to guarantee the pulse front edge steepness of static discharge interference and the problem of repetition rate.Through patent and non-patent literature retrieval both at home and abroad, at present both at home and abroad the puncture ON time best level of designed all kinds of high-voltage discharging switch can only reach ns in power pulser, and modern power pulser all needs high-voltage discharging switch can bear very high operating voltage, extremely short triggered time in a lot of applications and bears extremely strong impulse current.In addition, also require the adjustable range of gap die opening wide and must be very accurate, especially when low-voltage, must realize triggering and conducting.Obviously, satisfying such specification requirement with gap high-voltage discharging switch of the prior art is very tired standard.
At above-mentioned the deficiencies in the prior art, the purpose of this utility model is to mate for power pulser a kind of spark ball crack high-voltage discharging switch of picosecond level, not only can shorten 1-2 order of magnitude switching time that punctures conducting, and can accurately regulate the trigger voltage amplitude and the step angle that boosts, improve the steepness and the repetition rate of rising edge of a pulse.
Now the utility model technical solution is described below:
The utility model is spark ball crack three electrode high-voltage discharging switch, has high pressure main electrode, ground connection main electrode, auxiliary electrode and circuits for triggering, and the auxiliary triggering bar electrode of tape insulation sleeve pipe is housed on the center line of ground connection main electrode; Trigger between bar electrode and the ground connection main electrode centre bore and have an annular gap; It is characterized in that: also have stepping motor that drives high pressure main electrode precise displacement and the reshaper that improves the rising edge of a pulse steepness; The high pressure main electrode is fixed on the rail plate, and rail plate is by step motor control and drive (see figure 1); Reshaper mainly is made of two discharge heads and distance adjusting mechanism, and a discharge head is the metal tip cone, and another discharge head then is the connector lug in the resistance-capacitance network, (see figure 2); Spark ball crack high-voltage switch gear constitutes three discharging gaps altogether; Constitute main discharge gap between high pressure main electrode and the ground connection main electrode, the centre bore of ground connection main electrode and be installed in looping auxiliary gap between the triggering rod auxiliary electrode on the ground connection main electrode center line, the output of resistance-capacitance network and metal pointed cone electrode formation auxiliary gap in the reshaper; Trigger excellent auxiliary electrode contact Power Generation Road output; Circuits for triggering earth connection and ground connection main electrode earth connection be ground connection altogether; The input of resistance-capacitance network connects the output of high pressure main electrode in the reshaper by high-tension cable; Resistance-capacitance network in the reshaper is installed in the head with the epoxy resin filling, can drive the spacing that head changes discharging gap by threaded adjusting mechanism; The discharge trigger switch is used for the manual triggers discharge.
Now that description of drawings is as follows:
Fig. 1: three-electrode spark ball crack high-voltage switch gear structure chart
Fig. 2: reshaper structure chart
Fig. 3: circuits for triggering schematic diagram
Among Fig. 1: on base (1), fixedly mounting stepping motor (2) and insulating support (7); Insulating support (7) is supporting by insulating sleeve (6) and is triggering rod (5) and ground connection main electrode (9); Insulating support (12) is installed on the rail plate (3), and the binding post (4) by insulating sleeve (6) and high pressure main electrode (11) is supporting high pressure main electrode (11); Stepping motor (2) drives the spacing that insulating support (12) changes the main gap (8) between high pressure main electrode (11) and the ground connection main electrode (9) by rail plate (3), with the disruptive discharge voltage of control switch; High pressure main electrode binding post (4) connects the high-voltage output end of high-voltage DC power supply, and ground connection main electrode (9) connects the common ground line of high-voltage DC power supply, and receives the common ground line of switch triggering circuit; Trigger the output of rod (5) contact Power Generation Road, thereby between the annular gap (10) of triggering the formation of rod (5) and ground connection main electrode (9), added high-voltage pulse and made annular gap (10) discharge, so quickened the discharge process of main gap (8), therefore, can regulate the voltage that is added on the main gap (8) to be in disruptive critical voltage and disruptive discharge do not occur, make annular gap (10) discharge make the also breakdown and repid discharge of main gap (8) by circuits for triggering then.
Among Fig. 2: the binding post (3) in metal tip cone sparking electrode (1) and the static discharge interferance generator resistance-capacitance network (4) forms discharging gap (2); Resistance-capacitance network (4) is installed in the head (5) with the epoxy resin filling, can drive the spacing that head (5) change discharging gap (2) by regulating electrode spacing governor motion (9); The input of resistance-capacitance network (4) connects the output of high-voltage discharging switch by high-tension cable (8), high-voltage pulse by discharging gap (4) and pointed cone sparking electrode (1) output static discharge disturbing pulse to being subjected in the examination equipment; Discharge trigger switch (6) is used for manual triggers discharge, holds in the operation to break discharge trigger switch (6) off with the fingers and thumb behind the insulated handle (7) and can manual triggers discharge once; Its rising edge ascending time of high-voltage pulse by taper sparking electrode (1) output is relevant with the spacing of resistance-capacitance network (4) and discharging gap (2), and (parameter of 2 spacing and resistance-capacitance network (4) can make the leading-edge pulse time less than 500ps by regulating discharging gap meticulously.
Among Fig. 3: auxiliary electrode is sent out excellent in the monostable triggering that circuits for triggering are connected into by the NE555 time-base circuit and tremble circuits for triggering by going of constituting of resistance, electric capacity and constitute, the output contact of circuits for triggering, the common ground connection of the earth connection of circuits for triggering earth connection and grounding electrode.
Cutting edge technology development trend in the utility model technical field that real-time tracking relates to both at home and abroad in development process, make the technical indicator of the utility model reality meet and exceed the technical indicator of mission requirements by tackling key problem, through the measuring station 7104 calibration laboratories test of Shaanxi national defence zone, the actual technical indicator that reaches is as follows: maximum is born 60,000 volts of voltages, 3000 amperes in maximum impact electric current, discharge switch ON time 350 picoseconds.
The utility model is brought into play its more and more important special effect with in science examination experiment and test relevant with strong electromagnetic pulse.
Claims (3)
1, picosecond level gap high-voltage discharging switch has high pressure main electrode, ground connection main electrode, auxiliary electrode and circuits for triggering, it is characterized in that: also tool drives the stepping motor of high pressure main electrode precise displacement and the reshaper of raising rising edge of a pulse steepness; Spark ball crack high-voltage switch gear constitutes three discharging gaps altogether; Constitute main discharge gap (8) between high pressure main electrode (11) and the ground connection main electrode (9), the centre bore of ground connection main electrode (9) and be installed in looping auxiliary gap (10) between the triggering rod auxiliary electrode (5) on the ground connection main electrode center line, the connector lug (15) of resistance-capacitance network in the reshaper (16) constitutes auxiliary gap (14) with metal pointed cone electrode (13).
2, picosecond level gap high-voltage discharging switch according to claim 1, it is characterized in that: reshaper mainly is made of two discharge heads and distance adjusting mechanism, a discharge head is a metal pointed cone electrode (13), and another discharge head then is the connector lug (15) in the resistance-capacitance network; Stepping motor (2) is regulated spacing between high pressure main electrode (11) and the ground connection main electrode (9) by rail plate (3) and insulating support (12); Trigger excellent auxiliary electrode (5) contact Power Generation Road output; Circuits for triggering earth connection and ground connection main electrode earth connection be ground connection altogether; The input of resistance-capacitance network in the reshaper (16) connects the output (4) of high pressure main electrode by high-tension cable (20).
3, picosecond level gap high-voltage discharging switch according to claim 1, it is characterized in that: the resistance-capacitance network in the reshaper (16) is installed in the head (17) with the epoxy resin filling, can drive the spacing that head (5) changes discharging gap (14) by threaded adjusting mechanism (21); Discharge trigger switch (18) is used for the manual triggers discharge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99256107 CN2400946Y (en) | 1999-12-23 | 1999-12-23 | Picosecond stage spark gap high-voltage discharge switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99256107 CN2400946Y (en) | 1999-12-23 | 1999-12-23 | Picosecond stage spark gap high-voltage discharge switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2400946Y true CN2400946Y (en) | 2000-10-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99256107 Expired - Fee Related CN2400946Y (en) | 1999-12-23 | 1999-12-23 | Picosecond stage spark gap high-voltage discharge switch |
Country Status (1)
| Country | Link |
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| CN (1) | CN2400946Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101359433B (en) * | 2008-08-25 | 2010-12-01 | 德州学院 | Multifunctional electromagnetic pulse experiment instrument |
| CN102983501A (en) * | 2013-01-02 | 2013-03-20 | 桂林理工大学 | Spherical electrode spark gap switch with adjustable gap |
| CN108832602A (en) * | 2018-06-14 | 2018-11-16 | 西北核技术研究所 | A MV level pulse gas switch trigger cable protection method and protection device |
| CN109873572A (en) * | 2019-03-27 | 2019-06-11 | 哈尔滨理工大学 | An impulse voltage generating device for testing the dielectric strength of thin-film insulating materials |
| CN112735910A (en) * | 2020-12-24 | 2021-04-30 | 重庆理工大学 | Gap-adjustable three-electrode high-voltage switch based on thermal deformation of bimetallic strip |
-
1999
- 1999-12-23 CN CN 99256107 patent/CN2400946Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101359433B (en) * | 2008-08-25 | 2010-12-01 | 德州学院 | Multifunctional electromagnetic pulse experiment instrument |
| CN102983501A (en) * | 2013-01-02 | 2013-03-20 | 桂林理工大学 | Spherical electrode spark gap switch with adjustable gap |
| CN108832602A (en) * | 2018-06-14 | 2018-11-16 | 西北核技术研究所 | A MV level pulse gas switch trigger cable protection method and protection device |
| CN109873572A (en) * | 2019-03-27 | 2019-06-11 | 哈尔滨理工大学 | An impulse voltage generating device for testing the dielectric strength of thin-film insulating materials |
| CN112735910A (en) * | 2020-12-24 | 2021-04-30 | 重庆理工大学 | Gap-adjustable three-electrode high-voltage switch based on thermal deformation of bimetallic strip |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |