CN204706759U - A kind of TEA CO2 laser of repid discharge - Google Patents
A kind of TEA CO2 laser of repid discharge Download PDFInfo
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- CN204706759U CN204706759U CN201420356811.0U CN201420356811U CN204706759U CN 204706759 U CN204706759 U CN 204706759U CN 201420356811 U CN201420356811 U CN 201420356811U CN 204706759 U CN204706759 U CN 204706759U
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- discharge
- laser
- main discharge
- ignition capacitor
- inductance
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- 239000003990 capacitor Substances 0.000 claims abstract description 26
- 238000007599 discharging Methods 0.000 claims abstract description 3
- 230000005611 electricity Effects 0.000 claims abstract description 3
- 230000014759 maintenance of location Effects 0.000 claims description 2
- 238000003860 storage Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 4
- 238000005304 joining Methods 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- SBIBMFFZSBJNJF-UHFFFAOYSA-N selenium;zinc Chemical compound [Se]=[Zn] SBIBMFFZSBJNJF-UHFFFAOYSA-N 0.000 description 1
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- Lasers (AREA)
Abstract
The utility model belongs to laser field, is mainly used in the performance improving TEA CO2 laser; Specific works process is in the charging and discharging loop connected, first be all full of electricity when not opening discharge switch to all capacitors thus store energy, the energy then opened by discharge switch, at this moment stored just is discharged in laser gas in moment and produces repid discharge; The utility model principal shape machine design feature is: by each Ignition capacitor and electrode independently, realize the disengaging with main discharge electrode, each Ignition capacitor connects an inductance to produce high back voltage and to realize igniting when forming charge circuit and discharge switch unlatching when charging; Main discharge electric capacity is directly connected with high voltage source with Ignition capacitor, this reduces main discharge electric capacity and interpolar distributed capacitance, realizes repid discharge; Such laser has the advantage that electric discharge is fast.
Description
Technical field
The utility model belongs to laser field, is mainly used in improving TEA CO
2the performance of laser.
Background technology
TEA CO
2laser refers to that the laser that a kind of energy impulse is discharged, TEA are the head word abbreviations of transverse excitation atmosphere laser Transverse Excited Atmosphere.Principal character is mode of operation is pulse mode, and its pulse produced is burst pulse, and pulse duration is generally in 100-500nS scope, and peak power is very high, at tens kW and more than MW.The single pulse energy weight range of this laser is larger, has from mJ to MJ, and form and volume are distinguished very large.No matter how the concrete form of this laser and single pulse energy weight range and pulses range change, but essence of its electric discharge is substantially identical.Obviously, how pulse duration being narrowed is one of target of pursuing of people.Under the same conditions, pulse duration is narrower, peak power is higher.One of width principal element of pulse duration is interelectrode capacitance, comprising the distributed capacitance that electrode selfcapacity and manufacture process or structure problem cause.Clearly, interelectrode capacitance is less, and discharge faster, pulse duration is narrower, and peak power is higher.Traditional TEA CO
2laser capacitance is mainly divided into two parts, and a part is main discharge electric capacity, and another part is Ignition capacitor.Whole Ignition capacitor is in parallel, after their parallel connections again together with main discharge capacitances in series.Such structure, causes main discharge electric capacity and distribution of electrodes electric capacity all to increase, and the velocity of discharge is naturally also just slow, and pulse duration is just wide.As can be seen here, traditional TEA CO
2the pulse duration of laser will narrow further and have structural difficulty, often kind of TEA CO
2laser has its limiting value, and this just means traditional TEA CO
2there is certain defect in laser.
Utility model content
For traditional TEA CO
2the shortcoming that the pulse duration of laser can not narrow further, the purpose of this utility model is to provide the narrower TEA CO of a kind of pulse duration
2laser, its pulse width range is at 30nS-150nS.
To achieve these goals, the utility model have employed following technical measures: 1, by each Ignition capacitor and electrode independently, realize the disengaging with main discharge electrode, each Ignition capacitor connects an inductance to produce high back voltage and to realize igniting when forming charge circuit and discharge switch unlatching when charging; 2, main discharge electric capacity is directly connected with high voltage source with Ignition capacitor, this reduces main discharge electric capacity and interpolar distributed capacitance, realizes repid discharge.
The TEA CO2 laser of this repid discharge, primary structure is: one end of High voltage output and one end of high-voltage connection plate and discharge switch are in parallel, and the other end of High voltage output is connected with ground wire, and the other end of discharge switch is also connected with ground wire; One end of high-voltage connection plate and all main discharge electric capacity and one end of all Ignition capacitor are in parallel, and the other end of all main discharge electric capacity and one end of main discharge negative electrode and main discharge inductance are in parallel; The other end of main discharge inductance is connected with ground wire; One end of the other end of each Ignition capacitor and light a fire negative electrode and an inductance of lighting a fire is in parallel, and the other end of all igniting inductance is connected with ground wire; Main discharge anode is connected with ground wire, and all ignition anodes identical with igniting negative electrode quantity are also connected with ground wire; Such connected mode just defines charging and discharging loop, when discharge switch is not opened, all capacitors be all filled electricity thus stored energy, the energy of all storages when discharge switch is opened just is discharged in laser gas in moment and produces repid discharge; It is characterized in that: each Ignition capacitor and electrode independently, realize the disengaging with main discharge electrode, each Ignition capacitor connects an inductance to produce high back voltage and to realize igniting when forming charge circuit and discharge switch unlatching when charging.
Obviously, under the requirement of same single pulse energy, TEA CO of the present utility model
2main discharge capacitance required for laser reduces, and interpolar distributed capacitance also reduces, and the velocity of discharge is accelerated, and can realize pulse duration and narrow further.
Accompanying drawing explanation
Fig. 1 is basic structure schematic diagram of the present utility model, and Fig. 2 is the vertical view that Fig. 1 removes high-voltage connection plate; In Fig. 1 and Fig. 2: (1) be main discharge electric capacity, main discharge electric capacity capacity general larger, its capacity is about 3 times of Ignition capacitor total value; (2) be produce inductance with the joining charging of main discharge electric capacity and high back voltage; (3) and (4) be Ignition capacitor; (5) and (6) be that joining charging and high back voltage produce inductance with Ignition capacitor; Ignition capacitor is more and consistent with inductance number ratio, is distributed in both sides or the side of main discharge electrode symmetrically; (7) be main discharge negative electrode; (8) be main discharge anode; (9) and (10) be igniting negative electrode, negative electrode of lighting a fire in general has many; (11) and (12) be ignition anode, its quantity is identical with negative electrode; (13) be the insulation board of isolating all electric discharge negative electrodes; (14) be metal ground plate; (15) be the connector of Ignition capacitor, inductance and igniting negative electrode; (16) be laser enclosure; (17) and (18) be isolation ignitor and the insulating ceramic film of main discharge electrode; (19) be high voltage connection plate; (20) be ground connection pressing plate.Fig. 3 is the circuit theory schematic diagram of major loop of the present utility model, and discharge switch is wherein thyratron or gap.In order to compared with conventional discharge electrode, Fig. 4 and Fig. 5 is the basic structure schematic diagram of conventional discharge and the circuit theory schematic diagram of traditional major loop respectively.From traditional figure, traditional structure is relative with circuit simple, but distributed capacitance is larger, and the velocity of discharge does not have soon of the present utility model certainly.
Embodiment
Specific embodiment of the utility model is as follows: the TEA CO of a 500mm electrode length
2laser, discharge electrode spacing 20mm, electrode width 20mm, is filled with CO after vacuumizing
2: N
2: the mixed proportion of He be 1: 3: 5 mist be operation material, gas pressure is 55kPa, discharge voltage is 25-30kV, trigger impulse voltage is 3kV for thyratron, 10kV for gap, main discharge electric capacity is 10000pF, withstand voltage level 50kV, Ignition capacitor 20 100pF, withstand voltage level 50kV, total capacity is 2000pF, optical cavity by radius of curvature be 3000mm gold-plated completely reflecting mirror and export transmitance be 10% plane ZnSe mirror form, such laser pulse width is 50nS, peak power can reach more than 10MW, laser beam mode is basic mode.
Claims (2)
1. a TEA CO2 laser for repid discharge, primary structure is: one end of High voltage output and one end of high-voltage connection plate and discharge switch are in parallel, and the other end of High voltage output is connected with ground wire, and the other end of discharge switch is also connected with ground wire; One end of high-voltage connection plate and all main discharge electric capacity and one end of all Ignition capacitor are in parallel, and the other end of all main discharge electric capacity and one end of main discharge negative electrode and main discharge inductance are in parallel; The other end of main discharge inductance is connected with ground wire; One end of the other end of each Ignition capacitor and light a fire negative electrode and an inductance of lighting a fire is in parallel, and the other end of all igniting inductance is connected with ground wire; Main discharge anode is connected with ground wire, and all ignition anodes identical with igniting negative electrode quantity are also connected with ground wire; Such connected mode just defines charging and discharging loop, when discharge switch is not opened, all capacitors be all filled electricity thus stored energy, the energy of all storages when discharge switch is opened just is discharged in laser gas in moment and produces repid discharge; It is characterized in that: each Ignition capacitor and electrode independently, realize the disengaging with main discharge electrode, each Ignition capacitor connects an inductance to produce high back voltage and to realize igniting when forming charge circuit and discharge switch unlatching when charging.
2. the TEA CO2 laser of a kind of repid discharge according to claim 1, is characterized in that: main discharge electric capacity is directly connected with high voltage source with Ignition capacitor, this reduces main discharge electric capacity and interpolar distributed capacitance, realize repid discharge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420356811.0U CN204706759U (en) | 2014-07-01 | 2014-07-01 | A kind of TEA CO2 laser of repid discharge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420356811.0U CN204706759U (en) | 2014-07-01 | 2014-07-01 | A kind of TEA CO2 laser of repid discharge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204706759U true CN204706759U (en) | 2015-10-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420356811.0U Expired - Fee Related CN204706759U (en) | 2014-07-01 | 2014-07-01 | A kind of TEA CO2 laser of repid discharge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204706759U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113442775A (en) * | 2021-07-23 | 2021-09-28 | 长春捷翼汽车零部件有限公司 | Charging and discharging control method, charging device and storage medium |
-
2014
- 2014-07-01 CN CN201420356811.0U patent/CN204706759U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113442775A (en) * | 2021-07-23 | 2021-09-28 | 长春捷翼汽车零部件有限公司 | Charging and discharging control method, charging device and storage medium |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151014 |