CN104166091B

CN104166091B - Non-linear photoconductive semiconductor switch testing device and method

Info

Publication number: CN104166091B
Application number: CN201410430777.1A
Authority: CN
Inventors: 王卫; 夏连胜; 谌怡; 刘毅; 张篁
Original assignee: Institute of Fluid Physics of CAEP
Current assignee: Institute of Fluid Physics of CAEP
Priority date: 2014-08-28
Filing date: 2014-08-28
Publication date: 2017-01-25
Anticipated expiration: 2034-08-28
Also published as: CN104166091A

Abstract

The invention relates to the field of non-linear photoconductive semiconductor switch parameter testing, in particular to a non-linear photoconductive semiconductor switch testing device and method. The non-linear photoconductive semiconductor switch testing device and method are provided for solving the problems existing in the prior art. Through cooperation of a delay synchronous machine, a laser, an optical fiber, a photoelectric probe, a first high-voltage probe and the like, the difficulty of conducting accurate testing on a non-linear photoconductive semiconductor switch on the high-voltage, high-current and ultrafast-pulse conditions is overcome, and accurate, convenient and reliable testing of the parameters such as the conduction delay time, jittering, the conduction resistance, the withstand voltage and the service life of the non-linear photoconductive semiconductor switch is realized. The device comprises the delay synchronous machine, the laser, the optical fiber, the photoelectric probe, high-voltage probes, an oscilloscope, a high-voltage pulse power source, Blumlein transmission wires, a matching load, an organic glass box, transformer insulating oil and limiting fixtures. The non-linear photoconductive semiconductor switch to be tested, the Blumlein transmission wires and the matching load are placed in the organic glass box and are immersed in the transformer insulating oil.

Description

A kind of Nonlinear photoconductive switch test device and method

Technical field

The present invention relates to Nonlinear photoconductive switch parameter testing field, especially relate to a kind of Nonlinear photoconductive switch test Device and method.

Background technology

Photoconductive switch (photoconductive semiconductor switches-pcss) is to be swashed using pulse laser Encourage a kind of novel solid switch that photoconductive semiconductors realize impedance state conversion.Since 1972, maryland university Jayaraman and lee find first response time that semi-conducting material acts on to ps optical impulses can in the range of psec with Come, the characteristic research of photoconductive switch just causes the great attention of various countries scientist.Due to photoconductive switch have conducting speed fast, The advantages of synchronization accuracy is high, triggering shake is little, it is in medical grade media wall accelerator, High-Power Microwave, ultrashort ultra-fast electrical pulse, sudden strain of a muscle The equal various fields of illumination have good application prospect.

The mode of operation of photoconductive switch is divided into linear model and two kinds of nonlinear model, wherein, the biased electrical of photoconductive switch After field intensity all reaches certain threshold value with triggering luminous energy, photoconductive switch just can be operated in nonlinear model, and this mode of operation is also The focus of this area research at present.Because, under nonlinear model, photoconductive switch two interpolar bias voltage reaches tens of kilovolts, switch Conducting electric current reaches hundreds of amperes, power reaches tens of megawatts, therefore to test to the performance of Nonlinear photoconductive switch, then right Test device has higher requirement.

At present, domestic Nonlinear photoconductive switch production technology is also immature, on the one hand causes to switch expensive, the opposing party Face also makes switch quality uneven, and lacks unified detection means, in the urgent need to a set of accurate, convenient, reliable Detection means, the quality of Nonlinear photoconductive switch is controlled.

Content of the invention

The technical problem to be solved is: the problem existing for prior art, provides a kind of nonlinear light guide Switch test device and method.By delay synchronizer, laser instrument, optical fiber, photoelectric probe, high-voltage probe, oscillograph, high-tension pulse Rush the cooperation such as power supply, blumlein transmission line, matched load, overcome under conditions of high pressure, high current, ultrafast pulse to non-thread The difficulty that property photoconductive switch is accurately tested, realizes Nonlinear photoconductive switch turn on delay time, shake, conducting resistance, resistance to Accurate, the convenient, reliability of pressure and the parameter testing such as life-span is it is ensured that the performance of Nonlinear photoconductive switch and quality.Particular by When high-voltage pulse power source exports high-voltage signal, blumlein transmission line is charged；Nonlinear photoconductive switch to be measured has charged Cheng Hou, laser instrument produces laser signal and makes nonlinear light guide to be measured through fiber-optic transfer to Nonlinear photoconductive switch surface to be measured During switch conduction, between two metal silver electrode of blumlein transmission line produce a potential pulse, this potential pulse along Blumlein transmission line travel to a series of test process such as matched load obtain Nonlinear photoconductive switch to be measured lead to time delay, Shake, conducting resistance technical specification, the more parameter characteristic of accurate assurance Nonlinear photoconductive switch to be measured；By gradually stepping up height The output voltage of the pressure pulse power, that is, gradually step up the charging voltage of blumlein transmission line, until nonlinear light guide to be measured is opened Close and self breakdown occurs, in Nonlinear photoconductive switch to be measured, self breakdown previous moment occurs, oscillograph passes through the first high-voltage probe and surveys On the blumlein transmission line measured, the amplitude of high-voltage signal is the pressure of Nonlinear photoconductive switch to be measured；To be measured non-linear Under the conditions of photoconductive switch is operated in the technical specification of required satisfaction, allow Nonlinear photoconductive switch continuous firing to be measured, until to be measured Nonlinear photoconductive switch cannot be recorded the work times of Nonlinear photoconductive switch to be measured, as treat light-metering till normal work Lead the life-span of switch.

The technical solution used in the present invention is as follows:

A kind of Nonlinear photoconductive switch test device, including delay synchronizer, laser instrument, photoelectric probe, high-voltage probe, shows Ripple device, high-voltage pulse power source, blumlein transmission line, matched load, the first high-voltage probe, the second high-voltage probe, lucite Box, lucite base, transformer insulation oil, limit clamp；

Blumlein transmission line, including the first glass ceramics Plate-Transmission-Line and the second glass ceramics Plate-Transmission-Line, institute Overlap is placed in lucite base upper table up and down to state the first glass ceramics Plate-Transmission-Line and the second glass ceramics Plate-Transmission-Line Face, blumlein transmission line is fixed on lucite base by limit clamp；Described first glass ceramics Plate-Transmission-Line End face metal silver electrode with the second glass ceramics Plate-Transmission-Line end face argent electrode adjacent and turns on, the second glass pottery Porcelain Plate-Transmission-Line other end metal silver electrode is adjoined with lucite base；First glass ceramics Plate-Transmission-Line end face Metal silver electrode or the second glass ceramics Plate-Transmission-Line end face metal silver electrode are used for exporting height when high-voltage pulse power source During pressure signal, blumlein transmission line is charged；After blumlein transmission line charging complete, laser instrument passes through generation and swashs When optical signal is irradiated to Nonlinear photoconductive switch surface to be measured after fiber-optic transfer and makes Nonlinear photoconductive switch to be measured conducting, Produce a potential pulse between two metal silver electrode of the first glass ceramics Plate-Transmission-Line, this potential pulse is along first Glass ceramics Plate-Transmission-Line travels to matched load, the potential pulse that is, blumlein transmission line produces；

Nonlinear photoconductive switch anode to be measured is connected with the first glass ceramics Plate-Transmission-Line end face metal silver electrode, treats Survey Nonlinear photoconductive switch negative electrode to be connected with the first glass ceramics Plate-Transmission-Line other end metal silver electrode；Wherein said One glass ceramics Plate-Transmission-Line other end metal silver electrode is connected with high-voltage pulse power source earth terminal；First glass ceramics are put down Board transmission line end face metal silver electrode is connected with high-voltage pulse power source positive pole；Nonlinear photoconductive switch negative electrode to be measured passes through first Fixing screws are fixed on the first glass ceramics Plate-Transmission-Line other end metal silver electrode；

Delay synchronizer, is used for being taken up in order of priority to high-voltage pulse power source, laser instrument trigger；Triggering high-voltage pulse power source Output high-voltage signal, triggering laser instrument produces laser signal；

Matched load, for receiving the potential pulse of blumlein transmission line generation, and by the second high-voltage probe test Voltage pulse signal；Described matched load is arranged on the first glass ceramics Plate-Transmission-Line other end metal silver electrode and second Between the metal silver electrode of glass ceramics Plate-Transmission-Line other end；

Photoelectric probe, for oscillograph detecting laser produce pulsed laser irradiation to Nonlinear photoconductive switch table to be measured The reflected light producing during face, and this reflected light signal is converted to electric signal transmission to oscillograph, described oscillograph obtains pulse Laser is irradiated to the moment on Nonlinear photoconductive switch surface to be measured, wherein,If for photoelectric probe detecting laser Produce laser signal and reach the oscillographic moment,Connect line length for photoelectric probe to oscillograph,For electromagnetic wave in wire Spread speed, is known quantity；

Oscillograph, for detecting blumlein transmission line charging voltage signal by the first high-voltage probe, for by light Electric probe detecting laser produces laser signal and for detecting the potential pulse on matched load by the second high-voltage probe Waveform, can obtain each waveshape signal and reach oscillographic moment and amplitude；Wherein oscillograph passes through the first high-voltage probe detection Blumlein transmission line charging voltage waveform, and this waveshape signal is transmitted to oscillograph, blumlein is obtained on oscillograph High-voltage pulse power source output high-voltage signal magnitude of voltage on transmission line；Oscillograph passes through the second high-voltage probe and detects in matched load The potential pulse of upper acquisition, and this voltage pulse signal is transmitted to oscillograph, oscillograph obtains and exports on matched load Magnitude of voltage, obtain the moment that output voltage pulse is obtained on matched load simultaneously, wherein,For potential pulse Signal reaches the oscillographic moment,Connect line length for the second high-voltage probe to oscillograph；Then Nonlinear photoconductive switch to be measured Turn on delay time is, wherein,For the first glass ceramics Plate-Transmission-Line or the second glass ceramics flat board The electricity time span of transmission line, is known quantity；The shake of Nonlinear photoconductive switch to be measured, wherein,ForThe Nonlinear photoconductive switch turn on delay time to be measured that secondary measurement obtains,For positive integer;For multiple measurement conducting Time delayThe meansigma methodss obtaining；The conducting resistance of Nonlinear photoconductive switch to be measured is, wherein,For First glass ceramics Plate-Transmission-Line or the characteristic impedance of the second glass ceramics Plate-Transmission-Line, are known quantity；Wherein Blumlein transmission line charging voltage is the high-voltage signal of high-voltage pulse power source output；

It is full of transformer insulation oil in lucite box；Described Nonlinear photoconductive switch to be measured, blumlein transmission line, Join load to be placed in lucite box, and be immersed in transformer insulation oil, wherein said blumlein transmission line passes through limit Position fixture is fixed on lucite base, and described lucite box is the plexiglass box of upper end open, lucite bottom Seat bottom has been positioned over lucite cassette bottom portion.

A kind of Nonlinear photoconductive switch test device include high-voltage pulse power source, oscillograph, blumlein transmission line, first High-voltage probe, matched load, lucite box, transformer insulation oil, limit clamp；

Blumlein transmission line, including the first glass ceramics Plate-Transmission-Line and the second glass ceramics Plate-Transmission-Line, institute Overlap is placed on lucite base up and down to state the first glass ceramics Plate-Transmission-Line and the second glass ceramics Plate-Transmission-Line, Blumlein transmission line is fixed on lucite base by limit clamp；Described first glass ceramics Plate-Transmission-Line one end Face metal silver electrode with the second glass ceramics Plate-Transmission-Line end face argent electrode adjacent and turns on, and the second glass ceramics are put down Board transmission line other end metal silver electrode is adjoined with lucite base；

High-voltage pulse power source gradually steps up the high tension voltage of output, until Nonlinear photoconductive switch to be measured occurs self breakdown, There is self breakdown previous moment, the blumlein that oscillograph is measured by the first high-voltage probe in Nonlinear photoconductive switch to be measured On transmission line, the amplitude of high-voltage signal is the pressure of Nonlinear photoconductive switch to be measured；It is operated in Nonlinear photoconductive switch to be measured Under the conditions of the technical specification of required satisfaction, allow Nonlinear photoconductive switch continuous firing to be measured, until Nonlinear photoconductive switch to be measured The work times of Nonlinear photoconductive switch to be measured cannot be recorded till normal work, Nonlinear photoconductive switch as to be measured Life-span；

It is full of transformer insulation oil in lucite box；Described Nonlinear photoconductive switch to be measured, blumlein transmission line, Join load to be placed in lucite box, and be immersed in transformer insulation oil, wherein said blumlein transmission line passes through limit Position fixture is fixed on lucite base, and described lucite box is the plexiglass box of upper end open, lucite bottom Seat bottom is positioned over lucite cassette bottom portion.

Further, described blumlein transmission line includes the first glass ceramics Plate-Transmission-Line and the second glass ceramics are put down Overlap is placed in organic glass up and down for board transmission line, described first glass ceramics Plate-Transmission-Line and the second glass ceramics Plate-Transmission-Line On glass base, blumlein transmission line is fixed on lucite base by limit clamp, described first glass ceramics flat board Transmission line end face metal silver electrode and the second glass ceramics Plate-Transmission-Line end face argent electrode adjacent, described to be measured non- Linear photoconductive switch negative electrode is connected to the first glass ceramics Plate-Transmission-Line other end metal silver electrode side, the second glass pottery Porcelain Plate-Transmission-Line other end metal silver electrode is adjoined with lucite base, and described matched load is connected to the first glass pottery Between porcelain Plate-Transmission-Line other end metal silver electrode, the second glass ceramics Plate-Transmission-Line other end metal silver electrode.

Further, the making material of described lucite base and limit clamp is lucite, described position limiting clamp Tool is arranged on blumlein transmission line both sides, and the second screw, the 3rd screw are passed through by blumlein transmission line in limit clamp both sides Be fixed on lucite base, wherein limit clamp make the first glass ceramics Plate-Transmission-Line end face metal silver electrode with It is adjacent that second glass ceramics Plate-Transmission-Line end face metal silver electrode is seamless；Described Nonlinear photoconductive switch to be measured is arranged on First glass ceramics Plate-Transmission-Line other end metal silver electrode side, described Nonlinear photoconductive switch to be measured passes through the first spiral shell Nail is fixed on limit clamp；The matched load one end being connected with the first glass ceramics Plate-Transmission-Line other end metal silver electrode It is fixed on limit clamp by the 4th screw.

Further, described Nonlinear photoconductive switch to be measured pass through respectively native silver and the first glass ceramics Plate-Transmission-Line, Second glass ceramics Plate-Transmission-Line connects；Matched load pass through respectively native silver and the first glass ceramics Plate-Transmission-Line, second Glass ceramics Plate-Transmission-Line connects；The width of described native silver is identical with argent electrode width；Described first screw, the second spiral shell Nail, the 3rd screw, the 4th tip of screw roughnessMaximum be 3.2 μm,Maximum is 12.5 μm；Described high-voltage pulse Power supply and the connecting line of Nonlinear photoconductive switch to be measured, the described connecting line in Nonlinear photoconductive switch one end closely to be measured is using saw Dentalation；The impedance of described matched load and the impedance matching of blumlein transmission line, the as first glass ceramics flat board passes Defeated line or 2 times of the second glass ceramics Plate-Transmission-Line characteristic impedance.

A kind of Nonlinear photoconductive switch method of testing includes:

Step 1:blumlein transmission line includes the first glass ceramics Plate-Transmission-Line and the second glass ceramics plate transfer Overlap is placed in lucite base up and down for line, described first glass ceramics Plate-Transmission-Line and the second glass ceramics Plate-Transmission-Line On, blumlein transmission line is fixed on lucite base by limit clamp, described first glass ceramics Plate-Transmission-Line End face metal silver electrode with the second glass ceramics Plate-Transmission-Line end face argent electrode adjacent and turns on；Second glass pottery Porcelain Plate-Transmission-Line other end metal silver electrode is adjoined with lucite base；

Step 2: by Nonlinear photoconductive switch anode to be measured and the first glass ceramics Plate-Transmission-Line end face argent electricity Pole connects, and Nonlinear photoconductive switch negative electrode to be measured is connected with the first glass ceramics Plate-Transmission-Line other end metal silver electrode； Wherein said first glass ceramics Plate-Transmission-Line other end metal silver electrode is connected with high-voltage pulse power source earth terminal；First Glass ceramics Plate-Transmission-Line end face metal silver electrode is connected with high-voltage pulse power source positive pole；Nonlinear photoconductive switch to be measured is cloudy Pole is fixed on the first glass ceramics Plate-Transmission-Line other end metal silver electrode by the first fixing screws；Lucite box In be full of transformer insulation oil；Described Nonlinear photoconductive switch to be measured, blumlein transmission line, matched load are placed in lucite In box, and it is immersed in transformer insulation oil, wherein said blumlein transmission line is fixed on organic glass by limit clamp On glass base, described lucite box is the plexiglass box of upper end open；Lucite base bottom is positioned over organic glass Glass cassette bottom portion；

Step 3: be taken up in order of priority to high-voltage pulse power source, laser instrument trigger by delay synchronizer；And trigger high pressure The pulse power exports high-voltage signal, and triggering laser instrument produces laser signal；

Step: 4: when high-voltage pulse power source exports high-voltage signal, blumlein transmission line is charged, oscillograph passes through First high-voltage probe detects blumlein transmission line charging voltage, obtains blumlein transmission line charging voltage value on oscillograph；Blumlein transmission line charging voltage is the high-voltage signal of high-voltage pulse power source output；

Step 5: give after Nonlinear photoconductive switch charging complete to be measured after the high-voltage signal that high-voltage pulse exports, laser Device produces laser signal and is irradiated to Nonlinear photoconductive switch surface to be measured after fiber-optic transfer, with photoelectric probe exploring laser light signal It is irradiated to the reflected light producing during Nonlinear photoconductive switch surface to be measured, and this reflected light signal is converted to electric signal transmission extremely Oscillograph, obtains, by oscillograph, the moment that laser signal is irradiated to Nonlinear photoconductive switch surface to be measured, its In,Reach the oscillographic moment for the laser signal that photoelectric probe records,Connect line length for photoelectric probe to oscillograph,For electromagnetic wave in wire spread speed, be known quantity.

Step 6: when laser signal makes Nonlinear photoconductive switch conducting to be measured, in the first glass ceramics Plate-Transmission-Line two A potential pulse is produced, this potential pulse travels to along the first glass ceramics Plate-Transmission-Line between individual metal silver electrode Join load, then oscillograph detects, by the second high-voltage probe, the potential pulse obtaining on matched load, oscillograph passes through to obtain Obtain the moment that voltage pulse signal is transferred to matched load, wherein,Reach oscillography for this voltage pulse signal The moment of device,Connect line length for the second high-voltage probe to oscillograph；Obtain on oscillograph simultaneously and export on matched load Magnitude of voltage u_o；Then the turn on delay time of Nonlinear photoconductive switch to be measured is, wherein,For the first glass Earthenware slab transmission line or the electricity time span of the second glass ceramics Plate-Transmission-Line, are known quantity；Nonlinear light guide to be measured The shake of switch, wherein,ForThe Nonlinear photoconductive switch conducting to be measured that secondary measurement obtains is prolonged Time late,For positive integer,For multiple measurement turn on delay timeThe meansigma methodss obtaining；Nonlinear photoconductive switch to be measured Conducting resistance is, wherein,For the first glass ceramics Plate-Transmission-Line or the second glass ceramics plate transfer The characteristic impedance of line, is known quantity；

A kind of Nonlinear photoconductive switch method of testing includes:

Step 2: by Nonlinear photoconductive switch anode to be measured and the first glass ceramics Plate-Transmission-Line end face argent electricity Pole connects, and Nonlinear photoconductive switch negative electrode to be measured is connected with the first glass ceramics Plate-Transmission-Line other end metal silver electrode； Wherein said first glass ceramics Plate-Transmission-Line other end metal silver electrode is connected with high-voltage pulse power source earth terminal；First Glass ceramics Plate-Transmission-Line end face metal silver electrode is connected with high-voltage pulse power source positive pole；Nonlinear photoconductive switch to be measured is cloudy Pole is fixed on the first glass ceramics Plate-Transmission-Line other end metal silver electrode by the first fixing screws；Lucite box In be full of transformer insulation oil；Described Nonlinear photoconductive switch to be measured, blumlein transmission line, matched load are placed in lucite In box, and it is immersed in transformer insulation oil, wherein said blumlein transmission line is fixed on organic glass by limit clamp On glass base, described lucite box is the plexiglass box of upper end open, and lucite base bottom is positioned over organic glass Glass cassette bottom portion

Step 3: high-voltage pulse power source gradually steps up the high tension voltage of output, until Nonlinear photoconductive switch to be measured occurs certainly Puncture, in Nonlinear photoconductive switch to be measured, self breakdown previous moment occurs, oscillograph is measured by the first high-voltage probe On blumlein transmission line, the amplitude of high-voltage signal is the pressure of Nonlinear photoconductive switch to be measured；Open in nonlinear light guide to be measured Close under the conditions of being operated in the technical specification of required satisfaction, allow Nonlinear photoconductive switch continuous firing to be measured, until to be measured non-linear Photoconductive switch cannot record the work times of Nonlinear photoconductive switch to be measured, nonlinear optical as to be measured till normal work Lead the life-span of switch；Wherein blumlein transmission line charging voltage is the high-voltage signal of high-voltage pulse power source output.

Further, described Nonlinear photoconductive switch to be measured pass through respectively native silver and the first glass ceramics Plate-Transmission-Line, Second glass ceramics Plate-Transmission-Line connects；Matched load pass through respectively native silver and the first glass ceramics Plate-Transmission-Line, second Glass ceramics Plate-Transmission-Line connects；The width of described native silver is identical with argent electrode width；Described first screw, the second spiral shell Nail, the 3rd screw, the 4th tip of screw roughnessMaximum be 3.2 μm,Maximum is 12.5 μm；Described high-tension pulse Rush the connecting line of power supply and Nonlinear photoconductive switch to be measured, the described connecting line in Nonlinear photoconductive switch one end closely to be measured adopts Laciniation；The impedance of described matched load and the impedance matching of blumlein transmission line, the as first glass ceramics flat board Transmission line or 2 times of the second glass ceramics Plate-Transmission-Line characteristic impedance.

In sum, due to employing technique scheme, the invention has the beneficial effects as follows:

1st, define blumlein transmission line using two equal glass ceramics Plate-Transmission-Lines of characteristic impedance, according to treating Surveying the required technical specification meeting of Nonlinear photoconductive switch is the charging of blumlein transmission line, to be charged after the completion of, pulse laser It is irradiated to Nonlinear photoconductive switch surface to be measured after fiber-optic transfer, make Nonlinear photoconductive switch conducting to be measured, flat first A potential pulse is produced, this potential pulse is along the first glass ceramics flat board between plate pottery two metal silver electrode of transmission line Transmission line travels to matched load, the impedance matching of the impedance of matched load and blumlein transmission line it is therefore prevented that pulse anti- Penetrate, output waveform is obtained on matched load.

2nd, the first equal glass ceramics Plate-Transmission-Line of two characteristic impedances and the second glass ceramics plate transfer are utilized Line constitutes blumlein transmission line, the impedance matching of the impedance of matched load and blumlein transmission line, the as first glass 2 times of ceramic board transmission line or the second glass ceramics Plate-Transmission-Line characteristic impedance it is therefore prevented that the reflection of pulse.

3rd, it is utilized respectively Nonlinear photoconductive switch fixing screws 18 to be measured and matched load fixing screws 21 by non-thread to be measured Property photoconductive switch and matched load are fixed on glass ceramics Plate-Transmission-Line 8, and fine sand will be used in the end of two fixing screws Paper polishes smooth (tip of screw roughnessMaximum be 3.2 μm,Maximum is 12.5 μm), prevent in environment under high pressure In cause point discharge.

4th, when Nonlinear photoconductive switch to be measured and matched load are connected with metal silver electrode, connecting lead wire is all using native silver, The width of native silver is identical with the width of metal silver electrode 9, its objective is to reduce connecing when connecting lead wire is connected with metal silver electrode 9 Get an electric shock and hinder.

5th, the described connecting line in Nonlinear photoconductive switch one end closely to be measured adopts laciniation, and its reason is due to treating Survey Nonlinear photoconductive switch thickness of electrode be generally only hundred nanometer scale, laciniation can ensure connecting lead wire with to be measured While Nonlinear photoconductive switch electrode connects good, it is to avoid the stress that connecting lead wire produces in welding makes nonlinear optical to be measured Lead the electrode delamination of switch.

6th, the making material of lucite base 11 and limit clamp 17 is lucite, its objective is exhausted under high pressure Edge, meanwhile, transparent with the convenient state observing Nonlinear photoconductive switch to be measured in test process of machine glass.

7th, the effect of limit clamp 17 is the blumlein transmission line being made up of two glass ceramics Plate-Transmission-Lines 8 It is fixed on lucite base 11.

8th, whole test device is all immersed in transformer insulation oil, improve Nonlinear photoconductive switch to be measured and other The insulating capacity of device, it is to avoid because the phenomenon such as dielectric surface flashover has a negative impact to switch the performance test results.

9th, package unit structure is simple, easy to operate, reliable and stable it is easy to safeguard；

10th, the technical specification being met according to needed for Nonlinear photoconductive switch to be measured selects amplitude and the waveform of charging voltage, Improve the suitability of test device；

11st, carry out in test process by device, Nonlinear photoconductive switch to be measured is in transformer insulated oil seal all the time State, improve the voltage endurance capability of Nonlinear photoconductive switch to be measured, it is to avoid because the phenomenon such as dielectric surface flashover is surveyed to switch performance Test result has a negative impact；

12nd, whole test device small volume, lightweight, and mobility and portability are strong.

13rd, the common structure of Nonlinear photoconductive switch to be measured includes coplanar structure, antarafacial structure and three kinds of body structure, Tested using the present invention.

Brief description

Examples of the present invention will be described by way of reference to the accompanying drawings, wherein:

Fig. 1 is test philosophy figure of the present invention.

Fig. 2 is test device structural representation of the present invention.

Fig. 3 a is one of three kinds of common structures of photoconductive switch (antarafacial structure).

Fig. 3 b is one of three kinds of common structures of photoconductive switch (coplanar structure).

Fig. 3 c is one of three kinds of common structures of photoconductive switch (body structure).

Fig. 4 is limit clamp sectional view.

In figure, 1, delay synchronizer, 2, high-voltage pulse power source, 3, laser instrument, 4, optical fiber, 5, photoelectric probe, 6, pulse swashs Light, 7, Nonlinear photoconductive switch to be measured, 8, glass ceramics Plate-Transmission-Line, 9, the argent of flat ceramic transmission line two EDS maps Electrode, 10, matched load, 11, lucite base, the 12, first high-voltage probe, the 13, second high-voltage probe, 14, oscillograph, 15th, lucite box, 16, transformer insulation oil, 17, limit clamp, the 18, first screw, the 19, second screw, the 20, the 3rd spiral shell Nail, the 21, the 4th screw, 22, photoconductive semiconductors, 23, Nonlinear photoconductive switch electrode to be measured.

Specific embodiment

All features disclosed in this specification, or disclosed all methods or during step, except mutually exclusive Feature and/or step beyond, all can combine by any way.

Any feature disclosed in this specification (including any accessory claim, summary and accompanying drawing), except non-specifically is chatted State, all can be replaced by other alternative features equivalent or that there is similar purpose.I.e., unless specifically stated otherwise, each feature It is a series of equivalent or one of similar characteristics example.

Related description of the present invention:

1st, metal silver electrode refers to the first glass ceramics Plate-Transmission-Line, two ends of the second glass ceramics Plate-Transmission-Line The metal silver electrode in face.End face metal silver electrode refers to the first glass ceramics Plate-Transmission-Line and the second glass ceramics flat board Metal silver electrode on that adjacent end face of transmission line.Other end silver electrode refers to the first glass ceramics plate transfer Silver electrode on line and the second glass ceramics Plate-Transmission-Line that end face non-conterminous.Glass ceramics Plate-Transmission-Line refers to First glass ceramics Plate-Transmission-Line, the second glass ceramics Plate-Transmission-Line.First glass ceramics Plate-Transmission-Line and the second glass Glass earthenware slab transmission line is specification identical glass ceramics Plate-Transmission-Line.Described two end faces of glass ceramics Plate-Transmission-Line Be all metal silver electrode, glass ceramics Plate-Transmission-Line intermediate layer be glass ceramics, wherein metal silver electrode passes through silk screen printing Technique is fabricated in the glass ceramics both ends of the surface in intermediate layer, forms end face metal silver electrode and other end metal silver electrode.

2nd, matched load is resistance.Generally one implication.

3rd, every key technical index of Nonlinear photoconductive switch to be measured, comprising: turn on delay time, shake, electric conduction Resistance, pressure and life-span.The turn on delay time of Nonlinear photoconductive switch to be measured is, wherein,For the first glass Glass earthenware slab transmission line or the electricity time span of the second glass ceramics Plate-Transmission-Line, are known quantity；Nonlinear optical to be measured Lead the shake of switch, wherein,ForThe Nonlinear photoconductive switch conducting to be measured that secondary measurement obtains Time delay,For positive integer,For multiple measurement turn on delay timeThe meansigma methodss obtaining；Nonlinear photoconductive switch to be measured Conducting resistance be, wherein,It is the first glass ceramics Plate-Transmission-Line or the second glass ceramics flat board biography The characteristic impedance of defeated line, is known quantity；Under conditions of not input pulse laser 6, gradually step up the output of high-voltage pulse power source Voltage, that is, gradually step up the charging voltage of blumlein transmission line, until Nonlinear photoconductive switch to be measured occurs self breakdown, is treating Survey Nonlinear photoconductive switch and self breakdown previous moment occurs, oscillograph is transmitted by the blumlein that the first high-voltage probe measures On line, the amplitude of high-voltage signal is the pressure of Nonlinear photoconductive switch to be measured；It is operated in required in Nonlinear photoconductive switch to be measured Under the conditions of the technical specification meeting, allow Nonlinear photoconductive switch continuous firing to be measured, until Nonlinear photoconductive switch to be measured cannot Till normal work, record the work times of Nonlinear photoconductive switch to be measured, the life-span of Nonlinear photoconductive switch as to be measured.

4th, refer to the first glass ceramics plate transfer between two metal silver electrode of the first glass ceramics Plate-Transmission-Line Between line end face metal silver electrode and the first glass ceramics Plate-Transmission-Line other end silver electrode.

5th, a potential pulse, this voltage arteries and veins are produced between two metal silver electrode of the first glass ceramics Plate-Transmission-Line Punching travels to matched load along the first glass ceramics Plate-Transmission-Line, the potential pulse that is, blumlein transmission line produces.Tool Body produces process: refer to " pulse power basis ", author: Korea Spro, publishing house of Tsing-Hua University, Section of five blumlein of chapter 3 The related content of transmission line.

6th, on blumlein transmission line, high-voltage signal refers to the high-voltage signal of high-voltage pulse power source output.

Embodiment one: test the turn on delay time of Nonlinear photoconductive switch to be measured, Nonlinear photoconductive switch to be measured ShakeAnd the conducting resistance of Nonlinear photoconductive switch to be measuredIt is that dress is tested by Nonlinear photoconductive switch to be measured etc. parameter Put and carry out.

7th, the first high-voltage probe outfan is connected with oscillograph second port, the first high-voltage probe two input respectively with First glass ceramics Plate-Transmission-Line end face metal silver electrode (being connected with high-voltage pulse power source positive pole), other end argent Electrode connects (this metal silver electrode is grounded, and is connected simultaneously) with high-voltage pulse power source earth terminal.Second high-voltage probe outfan It is connected with oscillograph the 3rd port, the second high-voltage probe two input connects respectively at matched load two ends.Oscillograph be to The oscillograph of rare three road input ports wherein oscillograph first via input test port is oscillograph first port；Oscillograph Two tunnels input test port are oscillograph second port；Oscillograph the 3rd tunnel input test port is oscillograph the 3rd port.

Nonlinear photoconductive switch test device wherein to be measured include delay synchronizer, laser instrument, optical fiber, photoelectric probe, One high-voltage probe, the second high-voltage probe, oscillograph, high-voltage pulse power source, blumlein transmission line, matched load, lucite Box, transformer insulation oil, limit clamp；Blumlein transmission line, including the first glass ceramics Plate-Transmission-Line and the second glass Overlap is placed in up and down for earthenware slab transmission line, described first glass ceramics Plate-Transmission-Line and the second glass ceramics Plate-Transmission-Line On lucite base, blumlein transmission line is fixed on lucite base by limit clamp；Described first glass pottery Porcelain Plate-Transmission-Line end face metal silver electrode with the second glass ceramics Plate-Transmission-Line end face argent electrode adjacent and is led Logical, the first glass ceramics Plate-Transmission-Line end face metal silver electrode or the second glass ceramics Plate-Transmission-Line end face metal Silver electrode is used for, when high-voltage pulse power source output high-voltage signal, blumlein transmission line being charged；Treat that blumlein passes After defeated line charging complete, laser instrument is irradiated to Nonlinear photoconductive switch table to be measured by producing laser signal after fiber-optic transfer When face (away from that end face of blumlein transmission line) makes Nonlinear photoconductive switch conducting to be measured, in the first glass ceramics A potential pulse is produced, this potential pulse passes along the first glass ceramics flat board between two metal silver electrode of Plate-Transmission-Line Defeated line travels to matched load, the potential pulse that is, blumlein transmission line produces；

Delay synchronizer, is used for being taken up in order of priority to high-voltage pulse power source, laser instrument trigger；Triggering high-voltage pulse power source Output high-voltage signal, triggering laser instrument produces laser signal；Two outfans of delay synchronizer respectively with high-voltage pulse power source, swash Light device connects；High-voltage pulse power source positive pole is connected with the first glass ceramics Plate-Transmission-Line end face metal silver electrode, high-tension pulse Rush power ground end to be connected with the first glass ceramics Plate-Transmission-Line other end metal silver electrode；The laser letter that laser instrument produces Number by fiber-optic illuminated to Nonlinear photoconductive switch surface to be measured；

Oscillograph, for detecting blumlein transmission line charging voltage signal by the first high-voltage probe, for by light Electric probe detecting laser produces laser signal and for detecting the potential pulse on matched load by the second high-voltage probe Waveform, can obtain each waveshape signal and reach oscillographic moment and amplitude；Wherein oscillograph passes through the first high-voltage probe detection Blumlein transmission line charging voltage waveform, and this waveshape signal is transmitted to oscillograph, blumlein is obtained on oscillograph High-voltage pulse power source output high-voltage signal magnitude of voltage on transmission line；Oscillograph passes through the second high-voltage probe and detects in matched load The potential pulse of upper acquisition, and this voltage pulse signal is transmitted to oscillograph, oscillograph obtains and exports on matched load Magnitude of voltage, obtain the moment that output voltage pulse is obtained on matched load simultaneously, wherein,For potential pulse Signal reaches the oscillographic moment,Connect line length for the second high-voltage probe to oscillograph；Then Nonlinear photoconductive switch to be measured Turn on delay time be, wherein,It is that the first glass ceramics Plate-Transmission-Line or the second glass ceramics are put down The electricity time span of board transmission line, is known quantity；The shake of Nonlinear photoconductive switch to be measured, its In,ForThe Nonlinear photoconductive switch turn on delay time to be measured that secondary measurement obtains,For positive integer,Measure for multiple Turn on delay timeThe meansigma methodss obtaining；The conducting resistance of Nonlinear photoconductive switch to be measured is, wherein,For the characteristic impedance of the first glass ceramics Plate-Transmission-Line or the second glass ceramics Plate-Transmission-Line, it is known quantity；Wherein Blumlein transmission line charging voltage is the high-voltage signal of high-voltage pulse power source output；Wherein oscillograph first port passes through light The laser signal that electric probe detecting laser produces is irradiated to the reflected light producing during Nonlinear photoconductive switch surface to be measured；Oscillography Device second port is connected with the first glass ceramics Plate-Transmission-Line both ends of the surface metal silver electrode respectively by the first high-voltage probe, shows Ripple device the 3rd port is connected with matched load two ends by the second high-voltage probe.

Test process includes:

Step 1: the blumlein transmission line being made up of two glass ceramics Plate-Transmission-Lines is fixed on by limit clamp On lucite base, the making material of lucite base and limit clamp is lucite, its objective is under high pressure Insulation, meanwhile, transparent with the convenient state observing Nonlinear photoconductive switch to be measured in test process of machine glass；

Step 2: Nonlinear photoconductive switch to be measured is arranged on one end of blumlein transmission line, matched load is arranged on The other end of blumlein transmission line, is utilized respectively Nonlinear photoconductive switch fixing screws to be measured and matched load fixing screws are solid Reserve, wherein, the end of two fixing screws will polish smooth (roughness with fine sandpaperMaximum be 3.2 μm, Maximum is 12.5 μm), prevent from causing point discharge in environment under high pressure, and Nonlinear photoconductive switch to be measured and matched load When being connected with metal silver electrode, all using native silver, the width of native silver is identical with the width of metal silver electrode, its mesh for connecting lead wire Be the contact resistance reducing connecting lead wire when being connected with metal silver electrode；The impedance of matched load and blumlein transmission line Impedance matching, as the 2 of the characteristic impedance of glass ceramics Plate-Transmission-Line times are it is therefore intended that prevent the reflection of pulse.

Step 3: using high-voltage pulse power source, blumlein transmission line is charged, the characteristic of this voltage is by nonlinear optical to be measured Lead the required technical specification meeting of switch to determine；After the completion of to be charged, laser instrument produces laser signal through fiber-optic transfer to treating Survey Nonlinear photoconductive switch surface, make Nonlinear photoconductive switch conducting to be measured；After Nonlinear photoconductive switch conducting to be measured, it will A potential pulse is produced, this potential pulse travels to first between first flat ceramic transmission line other end metal silver electrode Matched load between glass ceramics Plate-Transmission-Line and the second flat ceramic transmission line；Detect finally by the second high-voltage probe The potential pulse obtaining on matched load；Whole test device in the present invention is all immersed in transformer insulation oil, carries The high insulating capacity of Nonlinear photoconductive switch to be measured and other devices, it is to avoid because the phenomenon such as dielectric surface flashover is to switch performance Test result has a negative impact.The turn on delay time of Nonlinear photoconductive switch wherein to be measured is, its In,For the electricity time span of glass ceramics Plate-Transmission-Line 8, it is known quantity；The shake of Nonlinear photoconductive switch to be measured, wherein,ForThe Nonlinear photoconductive switch turn on delay time to be measured that secondary measurement obtains,For Positive integer,For multiple measurement turn on delay timeThe meansigma methodss obtaining；The conducting resistance of Nonlinear photoconductive switch to be measured is, wherein,Characteristic impedance for glass ceramics Plate-Transmission-Line.

The present embodiment operation principle is: after installing Nonlinear photoconductive switch to be measured, using high-voltage pulse power source to by two The blumlein transmission line of bar glass ceramics Plate-Transmission-Line composition charges, and the characteristic of this voltage is by Nonlinear photoconductive switch to be measured The technical specification of required satisfaction determines；After the completion of to be charged, laser instrument produces laser signal through fiber-optic transfer to non-thread to be measured Property photoconductive switch 7 surface, makes Nonlinear photoconductive switch 7 to be measured turn on；After Nonlinear photoconductive switch 7 to be measured conducting, it will the A potential pulse is produced, this potential pulse travels to the first glass pottery between one flat ceramic transmission line two metal silver electrode Matched load 10 between porcelain Plate-Transmission-Line and the second flat ceramic transmission line；Detect finally by the second high-voltage probe Join the potential pulse in load, obtain Nonlinear photoconductive switch to be measured in conjunction with above-mentioned testing procedure: turn on delay time, tremble Dynamic, conducting resistance parameter.

Embodiment two: the test in the pressure and life-span of Nonlinear photoconductive switch to be measured is by Nonlinear photoconductive switch to be measured Test device test.

Nonlinear photoconductive switch test device wherein to be measured includes high-voltage pulse power source, blumlein transmission line, the first height Pressure probe, matched load, lucite box, transformer insulation oil, limit clamp.Blumlein transmission line, including the first glass Earthenware slab transmission line and the second glass ceramics Plate-Transmission-Line, described first glass ceramics Plate-Transmission-Line and the second glass pottery Overlap is placed on lucite base porcelain Plate-Transmission-Line up and down, and blumlein transmission line is fixed on organic glass by limit clamp On glass base；Described first glass ceramics Plate-Transmission-Line end face metal silver electrode and the second glass ceramics Plate-Transmission-Line one End plane metal silver electrode adjoins and turns on；Second glass ceramics Plate-Transmission-Line other end metal silver electrode and lucite bottom Seat is adjacent；

Nonlinear photoconductive switch anode to be measured is connected with the first glass ceramics Plate-Transmission-Line end face metal silver electrode, treats Survey Nonlinear photoconductive switch negative electrode to be connected with the first glass ceramics Plate-Transmission-Line other end metal silver electrode；Wherein said One glass ceramics Plate-Transmission-Line other end metal silver electrode is connected with high-voltage pulse power source earth terminal；First glass ceramics are put down Board transmission line end face metal silver electrode is connected with high-voltage pulse power source positive pole；Nonlinear photoconductive switch negative electrode to be measured passes through first Fixing screws are fixed on the first glass ceramics Plate-Transmission-Line other end metal silver electrode；Matched load is arranged on the first glass Glass earthenware slab transmission line other end metal silver electrode and the second glass ceramics Plate-Transmission-Line other end metal silver electrode Between；It is electric with the first glass ceramics Plate-Transmission-Line both ends of the surface argent respectively that oscillograph second port passes through the first high-voltage probe Pole connects；

It is full of transformer insulation oil in lucite box；Described Nonlinear photoconductive switch to be measured, blumlein transmission line, Join load to be placed in lucite box, and be immersed in transformer insulation oil, wherein said blumlein transmission line passes through limit Position fixture is fixed on lucite base, and described lucite box is the plexiglass box of upper end open；

Test process is: under conditions of not having laser instrument input pulse laser, gradually steps up the defeated of high-voltage pulse power source Go out voltage, that is, gradually step up the charging voltage of blumlein transmission line, until Nonlinear photoconductive switch to be measured occurs self breakdown, There is self breakdown previous moment in Nonlinear photoconductive switch to be measured, oscillograph is passed by the blumlein that the first high-voltage probe measures On defeated line, the amplitude of high-voltage signal is the pressure of Nonlinear photoconductive switch to be measured；It is operated in institute in Nonlinear photoconductive switch to be measured Under the conditions of the technical specification that need to meet, allow Nonlinear photoconductive switch continuous firing to be measured, until Nonlinear photoconductive switch to be measured is no Till method normal work, record the work times of Nonlinear photoconductive switch to be measured, the longevity of Nonlinear photoconductive switch as to be measured Life.

The invention is not limited in aforesaid specific embodiment.The present invention expands to and any discloses in this manual New feature or any new combination, and the arbitrary new method of disclosure or the step of process or any new combination.

Claims

1. a kind of Nonlinear photoconductive switch test device, including delay synchronizer, laser instrument, photoelectric probe, high-voltage probe, oscillography Device, high-voltage pulse power source are it is characterised in that also include blumlein transmission line, matched load, the first high-voltage probe, the second high pressure Probe, lucite box, lucite base, transformer insulation oil, limit clamp；

Blumlein transmission line, including the first glass ceramics Plate-Transmission-Line and the second glass ceramics Plate-Transmission-Line, described Overlap is placed in lucite base upper surface up and down for one glass ceramics Plate-Transmission-Line and the second glass ceramics Plate-Transmission-Line, Blumlein transmission line is fixed on lucite base by limit clamp；Described first glass ceramics Plate-Transmission-Line one end Face metal silver electrode with the second glass ceramics Plate-Transmission-Line end face argent electrode adjacent and turns on, and the second glass ceramics are put down Board transmission line other end metal silver electrode is adjoined with lucite base；First glass ceramics Plate-Transmission-Line end face metal Silver electrode or the second glass ceramics Plate-Transmission-Line end face metal silver electrode are used for when high-voltage pulse power source output high pressure letter Number when, blumlein transmission line is charged；After blumlein transmission line charging complete, laser instrument passes through to produce laser letter When number being irradiated to Nonlinear photoconductive switch surface to be measured after fiber-optic transfer and making Nonlinear photoconductive switch conducting to be measured, the A potential pulse is produced, this potential pulse is along the first glass between one glass ceramics Plate-Transmission-Line two metal silver electrode Earthenware slab transmission line travels to matched load, the potential pulse that is, blumlein transmission line produces；

Nonlinear photoconductive switch anode to be measured is connected with the first glass ceramics Plate-Transmission-Line end face metal silver electrode, to be measured non- Linear photoconductive switch negative electrode is connected with the first glass ceramics Plate-Transmission-Line other end metal silver electrode；Wherein said first glass Glass earthenware slab transmission line other end metal silver electrode is connected with high-voltage pulse power source earth terminal；First glass ceramics flat board passes Defeated line end face metal silver electrode is connected with high-voltage pulse power source positive pole；It is fixing that Nonlinear photoconductive switch negative electrode to be measured passes through first Screw is fixed on the first glass ceramics Plate-Transmission-Line other end metal silver electrode；

Matched load, for receiving the potential pulse of blumlein transmission line generation, and passes through the second high-voltage probe test voltage Pulse signal；Described matched load is arranged on the first glass ceramics Plate-Transmission-Line other end metal silver electrode and the second glass Between the metal silver electrode of earthenware slab transmission line other end；

Photoelectric probe, for oscillograph detecting laser produce pulsed laser irradiation to Nonlinear photoconductive switch surface to be measured when The reflected light producing, and this reflected light signal is converted to electric signal transmission to oscillograph, described oscillograph obtains pulse laser It is irradiated to the moment on Nonlinear photoconductive switch surface to be measuredWherein, t₁If producing for photoelectric probe detecting laser Laser signal reaches oscillographic moment, l₁Connect line length for photoelectric probe to oscillograph, v propagates in wire for electromagnetic wave Speed, is known quantity；

Oscillograph, for detecting blumlein transmission line charging voltage signal by the first high-voltage probe, for by light electrical resistivity survey Head detecting laser produces laser signal and for detecting the voltage pulse waveforms on matched load by the second high-voltage probe, Each waveshape signal can be obtained and reach oscillographic moment and amplitude；Wherein oscillograph passes through the first high-voltage probe detection Blumlein transmission line charging voltage waveform, and this waveshape signal is transmitted to oscillograph, blumlein is obtained on oscillograph High-voltage pulse power source output high-voltage signal magnitude of voltage u on transmission line_i；Oscillograph passes through the second high-voltage probe and detects in matched load The potential pulse of upper acquisition, and this voltage pulse signal is transmitted to oscillograph, oscillograph obtains and exports on matched load Magnitude of voltage u_o, obtain the moment that output voltage pulse is obtained on matched load simultaneouslyWherein, t₂For potential pulse Signal reaches oscillographic moment, l₂Connect line length for the second high-voltage probe to oscillograph；Then Nonlinear photoconductive switch to be measured Turn on delay time be δ t=t_out-t_in- τ, wherein, τ is the first glass ceramics Plate-Transmission-Line or the second glass ceramics are put down The electricity time span of board transmission line, is known quantity；The shake of Nonlinear photoconductive switch to be measuredIts In, δ t_iThe Nonlinear photoconductive switch turn on delay time to be measured obtaining for i ＆ lt measurement, i is positive integer；Measure for multiple The meansigma methodss that turn on delay time δ t obtains；The conducting resistance of Nonlinear photoconductive switch to be measured isWherein, z₀For the characteristic impedance of the first glass ceramics Plate-Transmission-Line or the second glass ceramics Plate-Transmission-Line, it is known quantity；Wherein Blumlein transmission line charging voltage is the high-voltage signal of high-voltage pulse power source output；

It is full of transformer insulation oil in lucite box；Described Nonlinear photoconductive switch to be measured, blumlein transmission line, coupling are negative It is placed in lucite box, and is immersed in transformer insulation oil, wherein said blumlein transmission line passes through position limiting clamp Tool is fixed on lucite base, and described lucite box is the plexiglass box of upper end open, lucite base bottom End is positioned over lucite cassette bottom portion.

2. a kind of Nonlinear photoconductive switch test device, including high-voltage pulse power source, oscillograph it is characterised in that also including Blumlein transmission line, the first high-voltage probe, matched load, lucite box, transformer insulation oil, limit clamp；

Blumlein transmission line, including the first glass ceramics Plate-Transmission-Line and the second glass ceramics Plate-Transmission-Line, described Overlap is placed on lucite base up and down for one glass ceramics Plate-Transmission-Line and the second glass ceramics Plate-Transmission-Line, Blumlein transmission line is fixed on lucite base by limit clamp；Described first glass ceramics Plate-Transmission-Line one end Face metal silver electrode with the second glass ceramics Plate-Transmission-Line end face argent electrode adjacent and turns on, and the second glass ceramics are put down Board transmission line other end metal silver electrode is adjoined with lucite base；

High-voltage pulse power source gradually steps up the high tension voltage of output, until Nonlinear photoconductive switch to be measured occurs self breakdown, is treating Survey Nonlinear photoconductive switch and self breakdown previous moment occurs, oscillograph is transmitted by the blumlein that the first high-voltage probe measures On line, the amplitude of high-voltage signal is the pressure of Nonlinear photoconductive switch to be measured；It is operated in required in Nonlinear photoconductive switch to be measured Under the conditions of the technical specification meeting, allow Nonlinear photoconductive switch continuous firing to be measured, until Nonlinear photoconductive switch to be measured cannot Till normal work, record the work times of Nonlinear photoconductive switch to be measured, the life-span of Nonlinear photoconductive switch as to be measured；

It is full of transformer insulation oil in lucite box；Described Nonlinear photoconductive switch to be measured, blumlein transmission line, coupling are negative It is placed in lucite box, and is immersed in transformer insulation oil, wherein said blumlein transmission line passes through position limiting clamp Tool is fixed on lucite base, and described lucite box is the plexiglass box of upper end open.

3. a kind of Nonlinear photoconductive switch test device according to claim 1 and 2 is it is characterised in that described blumlein Transmission line includes the first glass ceramics Plate-Transmission-Line and the second glass ceramics Plate-Transmission-Line, described first glass ceramics flat board Overlap is placed on lucite base up and down for transmission line and the second glass ceramics Plate-Transmission-Line, and blumlein transmission line passes through limit Position fixture is fixed on lucite base, described first glass ceramics Plate-Transmission-Line end face metal silver electrode and the second glass Glass earthenware slab transmission line end face argent electrode adjacent, described Nonlinear photoconductive switch negative electrode to be measured is connected to the first glass Earthenware slab transmission line other end metal silver electrode side, the second glass ceramics Plate-Transmission-Line other end metal silver electrode Adjoin with lucite base, described matched load is connected to the first glass ceramics Plate-Transmission-Line other end argent electricity Between pole, the second glass ceramics Plate-Transmission-Line other end metal silver electrode.

4. a kind of Nonlinear photoconductive switch test device according to claim 3 is it is characterised in that described lucite bottom The making material of seat and limit clamp is lucite, and described limit clamp is arranged on blumlein transmission line both sides, spacing Fixture both sides by the second screw, the 3rd screw, blumlein transmission line are fixed on lucite base, wherein position limiting clamp Tool makes the first glass ceramics Plate-Transmission-Line end face metal silver electrode and the second glass ceramics Plate-Transmission-Line end face gold Belong to silver electrode seamless adjacent；Described Nonlinear photoconductive switch to be measured is arranged on the first glass ceramics Plate-Transmission-Line other end Metal silver electrode side, described Nonlinear photoconductive switch to be measured is fixed on limit clamp by the first screw；Make pottery with the first glass Matched load one end that porcelain Plate-Transmission-Line other end metal silver electrode connects is fixed on limit clamp by the 4th screw.

5. a kind of Nonlinear photoconductive switch test device according to claim 4 is it is characterised in that described to be measured non-linear Photoconductive switch is connected with the first glass ceramics Plate-Transmission-Line, the second glass ceramics Plate-Transmission-Line by native silver respectively；Coupling Load is connected with the first glass ceramics Plate-Transmission-Line, the second glass ceramics Plate-Transmission-Line by native silver respectively；Described native silver Width identical with argent electrode width；Described first screw, the second screw, the 3rd screw, the 4th tip of screw roughness r_aMaximum be 3.2 μm, r_zMaximum is 12.5 μm；Described high-voltage pulse power source and the connection of Nonlinear photoconductive switch to be measured Line, the described connecting line in Nonlinear photoconductive switch one end closely to be measured adopts laciniation；The impedance of described matched load with The impedance matching of blumlein transmission line, the as first glass ceramics Plate-Transmission-Line or the second glass ceramics Plate-Transmission-Line are special Levy impedance 2 times.

6. a kind of Nonlinear photoconductive switch method of testing is it is characterised in that include:

Step 1:blumlein transmission line includes the first glass ceramics Plate-Transmission-Line and the second glass ceramics Plate-Transmission-Line, institute Overlap is placed on lucite base up and down to state the first glass ceramics Plate-Transmission-Line and the second glass ceramics Plate-Transmission-Line, Blumlein transmission line is fixed on lucite base by limit clamp, described first glass ceramics Plate-Transmission-Line one end Face metal silver electrode with the second glass ceramics Plate-Transmission-Line end face argent electrode adjacent and turns on；Second glass ceramics are put down Board transmission line other end metal silver electrode is adjoined with lucite base；

Step 2: Nonlinear photoconductive switch anode to be measured and the first glass ceramics Plate-Transmission-Line end face metal silver electrode are connected Connect, Nonlinear photoconductive switch negative electrode to be measured is connected with the first glass ceramics Plate-Transmission-Line other end metal silver electrode；Wherein Described first glass ceramics Plate-Transmission-Line other end metal silver electrode is connected with high-voltage pulse power source earth terminal；First glass Earthenware slab transmission line end face metal silver electrode is connected with high-voltage pulse power source positive pole；Nonlinear photoconductive switch negative electrode to be measured leads to Cross the first fixing screws to be fixed on the first glass ceramics Plate-Transmission-Line other end metal silver electrode；Fill in lucite box Full transformer insulation oil；Described Nonlinear photoconductive switch to be measured, blumlein transmission line, matched load are placed in lucite box Interior, and be immersed in transformer insulation oil, wherein said blumlein transmission line is fixed on lucite by limit clamp On base, described lucite box is the plexiglass box of upper end open；Lucite base bottom is positioned over lucite And bottom；

Step 3: be taken up in order of priority to high-voltage pulse power source, laser instrument trigger by delay synchronizer；And trigger high-voltage pulse Power supply exports high-voltage signal, and triggering laser instrument produces laser signal；

Step 4: when high-voltage pulse power source exports high-voltage signal, blumlein transmission line is charged, oscillograph passes through first High-voltage probe detects blumlein transmission line charging voltage, obtains blumlein transmission line charging voltage value u on oscillograph_i； Blumlein transmission line charging voltage is the high-voltage signal of high-voltage pulse power source output；

Step 5: give after Nonlinear photoconductive switch charging complete to be measured after the high-voltage signal that high-voltage pulse exports, laser instrument produces Raw laser signal is irradiated to Nonlinear photoconductive switch surface to be measured after fiber-optic transfer, is irradiated with photoelectric probe exploring laser light signal The reflected light producing during to Nonlinear photoconductive switch surface to be measured, and this reflected light signal is converted to electric signal transmission to oscillography Device, obtains, by oscillograph, the moment that laser signal is irradiated to Nonlinear photoconductive switch surface to be measuredWherein, t₁For The laser signal that photoelectric probe records reaches oscillographic moment, l₁Connect line length for photoelectric probe to oscillograph, v is electromagnetism Ripple spread speed in wire, is known quantity；

Step 6: when laser signal makes Nonlinear photoconductive switch conducting to be measured, in two gold of the first glass ceramics Plate-Transmission-Line Belong to and between silver electrode, produce a potential pulse, it is negative that this potential pulse travels to coupling along the first glass ceramics Plate-Transmission-Line Carry, then oscillograph detects, by the second high-voltage probe, the potential pulse obtaining on matched load, oscillograph passes through to obtain electricity Pressure pulse signal is transferred to the moment of matched loadWherein, t₂When reaching oscillographic for this voltage pulse signal Carve, l₂Connect line length for the second high-voltage probe to oscillograph；Output voltage values on matched load are obtained on oscillograph simultaneously u_o；Then the turn on delay time of Nonlinear photoconductive switch to be measured is δ t=t_out-t_in- τ, wherein, τ is the first glass ceramics flat board Transmission line or the electricity time span of the second glass ceramics Plate-Transmission-Line, are known quantity；The trembling of Nonlinear photoconductive switch to be measured DynamicWherein, δ t_iThe Nonlinear photoconductive switch turn on delay time to be measured obtaining for i ＆ lt measurement, i For positive integer,The meansigma methodss obtaining for multiple measurement turn on delay time δ t；The conducting resistance of Nonlinear photoconductive switch to be measured ForWherein, z₀Feature for the first glass ceramics Plate-Transmission-Line or the second glass ceramics Plate-Transmission-Line Impedance, is known quantity.

7. a kind of Nonlinear photoconductive switch method of testing is it is characterised in that include:

Step 2: Nonlinear photoconductive switch anode to be measured and the first glass ceramics Plate-Transmission-Line end face metal silver electrode are connected Connect, Nonlinear photoconductive switch negative electrode to be measured is connected with the first glass ceramics Plate-Transmission-Line other end metal silver electrode；Wherein Described first glass ceramics Plate-Transmission-Line other end metal silver electrode is connected with high-voltage pulse power source earth terminal；First glass Earthenware slab transmission line end face metal silver electrode is connected with high-voltage pulse power source positive pole；Nonlinear photoconductive switch negative electrode to be measured leads to Cross the first fixing screws to be fixed on the first glass ceramics Plate-Transmission-Line other end metal silver electrode；Fill in lucite box Full transformer insulation oil；Described Nonlinear photoconductive switch to be measured, blumlein transmission line, matched load are placed in lucite box Interior, and be immersed in transformer insulation oil, wherein said blumlein transmission line is fixed on lucite by limit clamp On base, described lucite box is the plexiglass box of upper end open；

Step 3: high-voltage pulse power source gradually steps up the high tension voltage of output, until Nonlinear photoconductive switch to be measured occurs certainly to hit Wear, in Nonlinear photoconductive switch to be measured, self breakdown previous moment occurs, oscillograph is measured by the first high-voltage probe On blumlein transmission line, the amplitude of high-voltage signal is the pressure of Nonlinear photoconductive switch to be measured；Open in nonlinear light guide to be measured Close under the conditions of being operated in the technical specification of required satisfaction, allow Nonlinear photoconductive switch continuous firing to be measured, until to be measured non-linear Photoconductive switch cannot record the work times of Nonlinear photoconductive switch to be measured, nonlinear optical as to be measured till normal work Lead the life-span of switch；Wherein blumlein transmission line charging voltage is the high-voltage signal of high-voltage pulse power source output.

8. a kind of Nonlinear photoconductive switch method of testing according to claim 6 or 7 is it is characterised in that described blumlein Transmission line includes the first glass ceramics Plate-Transmission-Line and the second glass ceramics Plate-Transmission-Line, described first glass ceramics flat board Overlap is placed on lucite base up and down for transmission line and the second glass ceramics Plate-Transmission-Line, and blumlein transmission line passes through limit Position fixture is fixed on lucite base, described first glass ceramics Plate-Transmission-Line end face metal silver electrode and the second glass Glass earthenware slab transmission line end face argent electrode adjacent, described Nonlinear photoconductive switch negative electrode to be measured is connected to the first glass Earthenware slab transmission line other end metal silver electrode side, the second glass ceramics Plate-Transmission-Line other end metal silver electrode Adjoin with lucite base, described matched load is connected to the first glass ceramics Plate-Transmission-Line other end argent electricity Between pole, the second glass ceramics Plate-Transmission-Line other end metal silver electrode.

9. a kind of Nonlinear photoconductive switch method of testing according to claim 8 it is characterised in that lucite base and The making material of limit clamp is lucite, and described limit clamp is arranged on blumlein transmission line both sides, limit clamp Both sides by the second screw, the 3rd screw, blumlein transmission line are fixed on lucite base, and wherein limit clamp makes Obtain the first glass ceramics Plate-Transmission-Line end face metal silver electrode and the second glass ceramics Plate-Transmission-Line end face argent It is adjacent that electrode is seamless；Described Nonlinear photoconductive switch to be measured is arranged on the first glass ceramics Plate-Transmission-Line other end metal Silver electrode side, described Nonlinear photoconductive switch to be measured is fixed on limit clamp by the first screw；Put down with the first glass ceramics Matched load one end that board transmission line other end metal silver electrode connects is fixed on limit clamp by the 4th screw.

10. a kind of Nonlinear photoconductive switch method of testing according to claim 9 is it is characterised in that described to be measured non-linear Photoconductive switch is connected with the first glass ceramics Plate-Transmission-Line, the second glass ceramics Plate-Transmission-Line by native silver respectively；Coupling Load is connected with the first glass ceramics Plate-Transmission-Line, the second glass ceramics Plate-Transmission-Line by native silver respectively；Described native silver Width identical with argent electrode width；Described first screw, the second screw, the 3rd screw, the 4th tip of screw roughness r_aMaximum be 3.2 μm, r_zMaximum is 12.5 μm；Described high-voltage pulse power source and the connection of Nonlinear photoconductive switch to be measured Line, the described connecting line in Nonlinear photoconductive switch one end closely to be measured adopts laciniation；The impedance of described matched load with The impedance matching of blumlein transmission line, the as first glass ceramics Plate-Transmission-Line or the second glass ceramics Plate-Transmission-Line are special Levy impedance 2 times.