CN107037254A - A kind of D dot for vacuum diode voltage measurement pop one's head in - Google Patents
A kind of D dot for vacuum diode voltage measurement pop one's head in Download PDFInfo
- Publication number
- CN107037254A CN107037254A CN201710048853.6A CN201710048853A CN107037254A CN 107037254 A CN107037254 A CN 107037254A CN 201710048853 A CN201710048853 A CN 201710048853A CN 107037254 A CN107037254 A CN 107037254A
- Authority
- CN
- China
- Prior art keywords
- vacuum
- measuring electrode
- dot
- voltage measurement
- diode voltage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/0084—Arrangements for measuring currents or voltages or for indicating presence or sign thereof measuring voltage only
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/06—Measuring leads; Measuring probes
- G01R1/067—Measuring probes
- G01R1/06711—Probe needles; Cantilever beams; "Bump" contacts; Replaceable probe pins
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/06—Measuring leads; Measuring probes
- G01R1/067—Measuring probes
- G01R1/06711—Probe needles; Cantilever beams; "Bump" contacts; Replaceable probe pins
- G01R1/06733—Geometry aspects
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Geometry (AREA)
- Measurement Of Radiation (AREA)
- Plasma Technology (AREA)
Abstract
The invention discloses a kind of D dot probes for vacuum diode voltage measurement, belong to vacuum diode voltage measurement field in Pulse Power Techniques, including cable block, probing shell, O-ring seal, insulating sleeve, grounding shell, measuring electrode, connecting rod, vacuum sealing cable connector, metal o-ring and heat insulating lamella, the cable block, the vacuum sealing cable connector, the O-ring seal, the probing shell, the insulating sleeve, the connecting rod, it is coaxial core structure between the measuring electrode and heat insulating lamella, connection is installed and forms probe entirety；The present invention installs the insulating sheet blocks plasma being made up of the high temperature resistant high polymer material of resistance to ablation in measuring electrode, it is to avoid insulation breakdown；Vacuum sealing performance is ensured using vacuum sealing cable connector and metal o-ring；By the main part of divider using thread connecting mode one entirety of formation so that the measurement error that unloading process is caused is minimized.
Description
Technical field
The invention belongs to technical field of pulse power, and in particular to a kind of D-dot for vacuum diode voltage measurement
Probe.
Background technology
In Pulse Power Techniques research, vacuum diode is a kind of important its load form, to the accurate of its voltage x current
Measurement is the important means for reflecting plant running state.Transmission-line voltage current parameters are commonly used in conventional work and carry out approximate representation
The voltage and current parameter of pulse power device（As " the High-Voltage Technology 2003 year phase of volume 29 the 1st " is published《A kind of coaxial high pressure electricity
Hold the design of divider》In mention " measurement position be located at transmission line close to diode end "）, but it is such approximate due to have ignored
The efficiency of transmission problem of diode, obtained diode voltage current parameters are inaccurate., should in order to improve the accuracy of measurement
When measurement point is arranged on the vacuum transmission of diode section on.At this moment there are technological difficulties mainly has：One is to ensure measuring probe
Vacuum sealing, two be to avoid measuring probe insulation breakdown caused by the area plasma of diode region, three be reduction remove and install
The measurement error that process is caused.This programme is primarily upon the measurement to diode voltage.Capacitive divider is pulse power system
In commonly use measurement pulse high-voltage signal device.Capacitive divider is divided into from integration type capacitive divider（Its output signal
It is directly proportional to tested voltage）With outer integration type capacitive divider, wherein outer integration type capacitive divider is main by differential probe D-
dot（Or V-dot）And integrator composition.D-dot probe time constants are much smaller than voltage signal forward position to be measured, its output signal
It is directly proportional to the differential signal of tested voltage.Patent of invention《A kind of capacitive divider for radiation-emitting semiconductor diode parameter measurement and
Installation method》（CN 102128964 B, 2013.03.20）In disclose it is a kind of measure radiation-emitting semiconductor diode parameter capacitance partial pressure
Device.Measuring electrode was close to transmission line outer tube inner wall, low-voltage arm electric capacity is around vacuum transmission line inner cylinder one week in the technical scheme
The coupled capacitor of measuring electrode and grounding shell, intermediate medium is polyethylene film, and thin-film width is slightly larger than electrode width.The party
Case solves electromagnetic interference problem, but its measuring electrode size is big, and fixed form passes through measuring electrode only with nylon connecting rod
On the screw that interior electrode is torqued-up to the hole of polyethylene film, easily divide when diode size is larger in practice process
Depressor connection loosing, so as to influence measurement accuracy." the High-Voltage Technology 2007 year phase of volume 33 12 " publication《Pulse power is filled
Put the design and application of middle capacitive divider》In disclose it is a kind of used in water transmission line V-dot probe concrete structure,
It is characterized in existing and there is vacuum sealing difficulty in multiple sealing rings, practice, and sealing ring after the more loose dismounting every time of structure
Elastic allowance change easily cause detector sensitivity to change, so as to influence measurement accuracy." light laser and the particle beams 2012
The phase of volume 24 the 6th year " publication《Subnanosecond pulse high voltage measuring is popped one's head in》In disclose a kind of D- of use poured with epoxy resin
Dot panel detector structures, its structure is more compact, easily realizes sealing.Asphalt mixtures modified by epoxy resin when finding to pour into a mould in air in practice process
Easily occur bubble inside fat, influence the uniformity of measurement structure and then influence measurement accuracy.Due to the presence of a large amount of bubbles
Also increase the risk of insulation breakdown.Reduce the bubble in epoxy resin and must just be poured into a mould in vacuum environment, it is necessary to
Complex corollary equipment.
The content of the invention
The invention aims to the voltage parameter of accurate measurement vacuum diode, at the same solve the problems, such as vacuum sealing,
Plasma shield problem, the response problem to fast rise time signal, and ensure compact conformation, be easily achieved that there is provided one kind
D-dot for vacuum diode voltage measurement pops one's head in.
Above-mentioned purpose is realized, the present invention is adopted the following technical scheme that：
A kind of D-dot for vacuum diode voltage measurement pops one's head in, including cable block, probing shell, insulating sleeve, ground connection are outside
It is provided with shell, measuring electrode, connecting rod, vacuum cable connector, the axle center of the measuring electrode and passes through spiral shell with measuring electrode
The connecting rod of line connection, the measuring electrode is connected as one by external screw thread with insulating sleeve, and the insulating sleeve passes through outer
Screw thread is connected as one with probing shell, and the probing shell is connected as one by external screw thread with cable block；
The connecting rod inserts one end of the vacuum cable connector, and the vacuum cable connector is fixed in cable block
In heart through hole, the cable block is connected to one by bolt with grounding shell；
Cable block, vacuum cable connector, insulating sleeve, measuring electrode, connecting rod, probing shell, grounding shell are coaxial
Core structure；
Metal o-ring is provided between the cable block and grounding shell.
In the above-mentioned technical solutions, set respectively at the grounding shell position relative with the cable block upper and lower end face
There is seal groove, the metal o-ring is arranged in seal groove.
In the above-mentioned technical solutions, the metal o-ring is soft metal material, or is oxygen-free copper, or is red copper.
In the above-mentioned technical solutions, the probing shell inner surface setting has step, with the platform on insulating sleeve outer surface
Rank is mutually agreed with, and plays spacing effect.
In the above-mentioned technical solutions, the insulating sleeve inner surface setting has step, for spacing to measuring electrode.
In the above-mentioned technical solutions, heat insulating lamella is provided with the outer face of the measuring electrode, the heat insulating lamella leads to
Screw is crossed to be connected with measuring electrode.
In the above-mentioned technical solutions, the heat insulating lamella diameter is not less than the diameter of measuring electrode.
In the above-mentioned technical solutions, the vacuum cable connector is wall-penetrating type structure, through the center of the cable block
Through hole.
In the above-mentioned technical solutions, the vacuum cable connector is provided with through the part of cable block and cable block
O-ring seal.
In summary, by adopting the above-described technical solution, the beneficial effects of the invention are as follows：
（1）In the present invention, using the bombardment of insulating sheet blocks electron beam and plasma outside measuring electrode, make plasma
And electronics is difficult to form short-channel, so as to avoid the appearance of short circuit phenomenon；
（2）In the present invention, the probe segment of capacitive divider（Comprising cable block, vacuum sealing cable connector, probing shell,
Insulating sleeve, measuring electrode, connecting rod, heat insulating lamella）Turn into a probe after installation overall, with using and the side of dismounting
Just the advantages of；
（3）In the present invention, using vacuum sealing cable connector, only with an O-ring seal and a metal o-ring both
High vacuum sealing can be achieved, it is simple in construction.The elastic allowance in capacitive divider can be substantially reduced using metal o-ring,
Ensure the accuracy of measurement result；
（4）In the present invention, all structures use standard component or machined piece, and assembling process is easy, it is not necessary to after development
Continuous cast etc. is processed, it is easy to accomplish；
（5）In the present invention, sonde configuration is compact, and the coupled capacitor representative value formed between measuring electrode and probing shell is pF amounts
Level, the requirement that probe time constant is much smaller than voltage signal forward position to be measured can be met well, to the voltage signal in ns forward positions
Can accurately it be measured；
The present invention is ingenious in design, simple in construction to be easily achieved, and easy to use and making and maintenance cost are relatively low, with prominent reality
Matter feature and marked improvement, are adapted to large-scale promotion application in vacuum diode voltage measurement field.
Brief description of the drawings
Examples of the present invention will be described by way of reference to the accompanying drawings, wherein：
Fig. 1 is the sectional view of structure of the present invention；
Wherein：1 is cable block, and 2 be bolt, and 3 be probing shell, and 4 be vacuum sealing cable connector, and 5 be O-ring seal, and 6 are
Insulating sleeve, 7 be metal o-ring, and 8 be grounding shell, and 9 be measuring electrode, and 10 be connecting rod, and 11 be screw, and 12 be that insulation is thin
Piece.
Embodiment
All features disclosed in this specification, or disclosed all methods or during the step of, except mutually exclusive
Feature and/or step beyond, can combine in any way.
A kind of D-dot for vacuum diode voltage measurement of the present invention pops one's head in, including cable block, and probe is outer
Shell, O-ring seal, insulating sleeve, grounding shell, measuring electrode, connecting rod, in addition to vacuum sealing cable connector, metal
Sealing ring and heat insulating lamella, the cable block, vacuum sealing cable connector, O-ring seal, probing shell, insulating sleeve, company
It is coaxial core structure between extension bar, measuring electrode, heat insulating lamella, connection is installed and forms probe entirety.In order to ensure that probe is each
Partial axiality, the connected mode between the cable block, probing shell, insulating sleeve, connecting rod, measuring electrode connects for screw thread
Connect.
Coupled capacitor between the measuring electrode and the probing shell as capacitive divider low-voltage arm electric capacity, with two
The high voltage arm capacitor of capacitive divider is formed between pole pipe vacuum transmission section inner cylinder.
Further, in order to ensure the accuracy installed, on above-mentioned probing shell, insulating sleeve, also limited location is set respectively
Meter.The vacuum sealing cable connector has wall-penetrating type structure, and the centre bore through the cable block is arranged on the cable
On seat, probe signal is led into oscilloscope display.Can using ceramic post sintering etc. inside the vacuum sealing cable connector
Effectively the structure of sealing vacuum, outside to seal vacuum using O-ring seal between the cable block.
The grounding shell is respectively arranged with seal groove, seal groove at the position relative with the cable block upper and lower end face
It is respectively provided with knife edge structure.The metal o-ring is placed during installation in above-mentioned seal groove, by the grounding shell and the electricity
Cable seat is connected by screw bolts, and plays a part of fixed D-dot probes and sealing vacuum.The heat insulating lamella is arranged on using screw
On the outside of measuring electrode, play a part of barrier plasma.
Above-mentioned metal o-ring is the soft metal materials such as oxygen-free copper, red copper；Above-mentioned cable block, grounding shell are stainless steel
Deng hard metal material；Above-mentioned probing shell, measuring electrode, connecting rod are metal material；Above-mentioned insulating sleeve is nylon or poly-
The insulating dielectric materials such as tetrafluoroethene；Above-mentioned heat insulating lamella is the high scores such as the polyimides or polytetrafluoroethylene (PTFE) of the resistance to ablation of high temperature resistant
Sub- material.
A D-dot probes measured for vacuum diode voltage measurement, Neng Goushi by foregoing invention conceptual design
Now to forward position 5ns, pulsewidth 150ns pulse voltage signal accurate measurement, the structure of critical piece is as shown in Figure 1.It is wherein electric
Cable seat is stainless steel material, overall diameter Φ 70mm, thickness 11mm, along the logical of 6 Φ 7 of Φ 58.7mm circumference uniform distributions on cable block
Hole, cable block center is the through holes of Φ 14, and cable block bottom has M40x1 deep 5.5 internal thread, and overall diameter Φ 48.3 has
The seal groove of knife edge structure.Bolt is the turret head screw bolt of stainless steel material, reach about 18mm.Probing shell is
The overall length 30mm of stainless steel material overall diameter Φ 40 hollow cylindrical structure, upper end have M40x1 deep 5.5 external screw thread and
M33x1 deep 9 internal thread, is provided with the circle of falling R0.5 inside and outside Φ 36 step-like position limiting structure, lower surface at the 9mm of upper surface
Angle is to reduce surface field intensity.Vacuum sealing cable connector model BNC（M）- 50KKY, is that a kind of two ends are BNC passes
Wall-penetrating type screw threads for fastening type vacuum sealing cable connector, inner core using ceramic sintering process ensure sealing property.O-shaped sealing
Circle is the standard component of fluorubber material, for vacuum sealing between vacuum sealing cable connector and cable block.Insulating sleeve by
Polytetrafluoroethylmaterial material is made, overall length 30mm, and top is interior diameter Φ 24, external screw thread M33x1 deep 9 hollow-core construction, and bottom is
The interior diameter Φ 28 of overall diameter Φ 36 hollow-core construction, lower surface has M28x1 deep 5 internal thread, is set at the 18mm of lower surface
It is equipped with step-like position limiting structure.Metal o-ring is CF-35 standard anaerobic copper sealing rings.Grounding shell is stainless steel material, interior
Diameter of phi 40, overall length 24mm, top is overall diameter Φ 70mm, and thickness 6mm ring flange is equal along Φ 58.7mm circumference on ring flange
On the hole opened on 6 M6 of cloth screwed hole, lower outer diameter Φ 48, lower weld to diode outer barrel.Measuring electrode is stainless
Steel material, overall diameter Φ 28, overall length 18mm, lower surface has deep 5 screw threads of M28x1, and central upper portion opens Φ 20 depth 10mm grooves, bottom land
Deep 5 screwed holes of M6 are opened at center, bottom uniform 2 M2.5 screwed holes along along the circumference of Φ 11.6 be used for measuring electrode auxiliary install and
The installation of screw.Connecting rod is brass material, and upper end acicular texture matches with the poroid connection end of bnc connector, lower end M6 deep 4
Screw thread matches with the bottom land screw of measuring electrode 9.Screw 11 is metal material, for heat insulating lamella 12 and the company of measuring electrode 9
Connect.Heat insulating lamella 12 is polytetrafluoroethylmaterial material, overall diameter Φ 36, thickness 2mm, lower edges rounding, along the circumference of Φ 11.6
Upper uniform 2 Φ 3 through holes.
Installation process is as follows：O-ring seal and vacuum sealing cable connector are fixed in cable block successively
On heart hole, probing shell external screw thread is connected in cable block lower internal thread, and it is outer that insulating sleeve upper external thread is connected to probe
On shell internal thread, connecting rod lower thread is connected on measuring electrode bottom land screw, auxiliary using measuring electrode bottom M2.5 screws
Help and be connected measuring electrode lower external thread with insulating sleeve lower internal thread（During this connecting rod top acicular texture with
The poroid connection end of bnc connector is connected）, heat insulating lamella is connected with measuring electrode using screw, process installed above is by shape
Into a measuring probe entirety.Metal o-ring is placed in the seal groove on grounding shell when using, measuring probe is whole
Body is put into grounding shell endoporus, connects cable block and grounding shell using bolt, compresses.
The invention is not limited in foregoing embodiment.The present invention, which is expanded to, any in this manual to be disclosed
New feature or any new combination, and disclose any new method or process the step of or any new combination.
Claims (8)
1. a kind of D-dot for vacuum diode voltage measurement pops one's head in, including cable block, probing shell, insulating sleeve, ground connection
Shell, measuring electrode, connecting rod, vacuum cable connector, heat insulating lamella, it is characterised in that set on the axle center of the measuring electrode
The connecting rod being connected through a screw thread with measuring electrode is equipped with, the measuring electrode is connected as one by external screw thread and insulating sleeve
Body, the insulating sleeve is connected as one by external screw thread with probing shell, and the probing shell passes through external screw thread and cable block
Connect as one；
The connecting rod inserts one end of the vacuum cable connector, and the vacuum cable connector is fixed in cable block
In heart through hole, the cable block is connected to one by bolt with grounding shell；
Cable block, vacuum cable connector, insulating sleeve, measuring electrode, connecting rod, probing shell, grounding shell are coaxial
Core structure；
Metal o-ring is provided between the cable block and grounding shell；
The heat insulating lamella is located on the outer face of measuring electrode, and the heat insulating lamella is connected by screw with measuring electrode.
2. a kind of D-dot for vacuum diode voltage measurement according to claim 1 pops one's head in, it is characterised in that described
Grounding shell is respectively arranged with seal groove at the position relative with the cable block upper and lower end face, and the metal o-ring is arranged on
In seal groove.
3. a kind of D-dot for vacuum diode voltage measurement according to claim 2 pops one's head in, it is characterised in that described
Metal o-ring is soft metal material, or is oxygen-free copper, or is red copper.
4. a kind of D-dot for vacuum diode voltage measurement according to claim 1 pops one's head in, it is characterised in that described
Probing shell inner surface setting has step, mutually agrees with the step on insulating sleeve outer surface, plays spacing effect.
5. a kind of D-dot for vacuum diode voltage measurement according to claim 4 pops one's head in, it is characterised in that described
Insulating sleeve inner surface setting has step, for spacing to measuring electrode.
6. a kind of D-dot for vacuum diode voltage measurement according to claim 1 pops one's head in, it is characterised in that described
Heat insulating lamella diameter is not less than the diameter of measuring electrode.
7. a kind of D-dot for vacuum diode voltage measurement according to claim 1 pops one's head in, it is characterised in that described
Vacuum cable connector is wall-penetrating type structure, through the central through hole of the cable block.
8. a kind of D-dot for vacuum diode voltage measurement according to claim 7 pops one's head in, it is characterised in that described
Vacuum cable connector is provided with O-ring seal through the part of cable block and cable block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710048853.6A CN107037254B (en) | 2017-01-23 | 2017-01-23 | D-dot probe for vacuum diode voltage measurement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710048853.6A CN107037254B (en) | 2017-01-23 | 2017-01-23 | D-dot probe for vacuum diode voltage measurement |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107037254A true CN107037254A (en) | 2017-08-11 |
| CN107037254B CN107037254B (en) | 2023-04-21 |
Family
ID=59533206
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710048853.6A Active CN107037254B (en) | 2017-01-23 | 2017-01-23 | D-dot probe for vacuum diode voltage measurement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107037254B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114878943A (en) * | 2022-05-27 | 2022-08-09 | 湘潭大学 | Method for evaluating and guaranteeing low-frequency performance of D-dot probe |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09211041A (en) * | 1996-01-30 | 1997-08-15 | Hioki Ee Corp | Method and device for measuring equivalent series resistance of capacitive element |
| TWI240076B (en) * | 2004-04-20 | 2005-09-21 | Chung Shan Inst Of Science | D-dot micro-sensor |
| CN101989670A (en) * | 2009-07-30 | 2011-03-23 | 三洋电机株式会社 | Battery system and electric vehicle including the same |
| CN102013311A (en) * | 2010-11-16 | 2011-04-13 | 东北电力大学 | Pressure type current transformer |
| CN102128964A (en) * | 2011-01-14 | 2011-07-20 | 西北核技术研究所 | Capacitive voltage divider used for measuring radiation diode parameters and installation method |
| US20110279108A1 (en) * | 2010-05-12 | 2011-11-17 | Broadcom Corporation | Ac voltage measurement circuit |
| CN103760402A (en) * | 2014-01-22 | 2014-04-30 | 重庆大学 | Three-phase voltage transformer based on D_dot principle and three-phase influence voltage compensating method |
| CN104380121A (en) * | 2012-06-01 | 2015-02-25 | 三菱电机株式会社 | Voltage detection device for substation equipment |
| CN105486908A (en) * | 2015-11-20 | 2016-04-13 | 西北核技术研究所 | B-dot probe blocking electrons of magnetically insulated sheath and current space distribution measuring system |
| CN105572452A (en) * | 2015-12-10 | 2016-05-11 | 中国工程物理研究院应用电子学研究所 | Gaussian beam bunch average current measuring method of particle accelerator in quasi-continuous running state |
| CN106093716A (en) * | 2016-05-26 | 2016-11-09 | 中国南方电网有限责任公司电网技术研究中心 | Local discharge of electrical equipment detection device |
| CN106249024A (en) * | 2016-07-01 | 2016-12-21 | 重庆大学 | Transmission line of electricity voltage measurement method based on D dot electric-field sensor |
| CN206420943U (en) * | 2017-01-23 | 2017-08-18 | 中国工程物理研究院应用电子学研究所 | A kind of D dot for vacuum diode voltage measurement pop one's head in |
-
2017
- 2017-01-23 CN CN201710048853.6A patent/CN107037254B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09211041A (en) * | 1996-01-30 | 1997-08-15 | Hioki Ee Corp | Method and device for measuring equivalent series resistance of capacitive element |
| TWI240076B (en) * | 2004-04-20 | 2005-09-21 | Chung Shan Inst Of Science | D-dot micro-sensor |
| CN101989670A (en) * | 2009-07-30 | 2011-03-23 | 三洋电机株式会社 | Battery system and electric vehicle including the same |
| US20110279108A1 (en) * | 2010-05-12 | 2011-11-17 | Broadcom Corporation | Ac voltage measurement circuit |
| CN102013311A (en) * | 2010-11-16 | 2011-04-13 | 东北电力大学 | Pressure type current transformer |
| CN102128964A (en) * | 2011-01-14 | 2011-07-20 | 西北核技术研究所 | Capacitive voltage divider used for measuring radiation diode parameters and installation method |
| CN104380121A (en) * | 2012-06-01 | 2015-02-25 | 三菱电机株式会社 | Voltage detection device for substation equipment |
| CN103760402A (en) * | 2014-01-22 | 2014-04-30 | 重庆大学 | Three-phase voltage transformer based on D_dot principle and three-phase influence voltage compensating method |
| CN105486908A (en) * | 2015-11-20 | 2016-04-13 | 西北核技术研究所 | B-dot probe blocking electrons of magnetically insulated sheath and current space distribution measuring system |
| CN105572452A (en) * | 2015-12-10 | 2016-05-11 | 中国工程物理研究院应用电子学研究所 | Gaussian beam bunch average current measuring method of particle accelerator in quasi-continuous running state |
| CN106093716A (en) * | 2016-05-26 | 2016-11-09 | 中国南方电网有限责任公司电网技术研究中心 | Local discharge of electrical equipment detection device |
| CN106249024A (en) * | 2016-07-01 | 2016-12-21 | 重庆大学 | Transmission line of electricity voltage measurement method based on D dot electric-field sensor |
| CN206420943U (en) * | 2017-01-23 | 2017-08-18 | 中国工程物理研究院应用电子学研究所 | A kind of D dot for vacuum diode voltage measurement pop one's head in |
Non-Patent Citations (2)
| Title |
|---|
| 卫兵 等: "阳加速器水传输线D-dot的设计、标定和实验", 《强激光与粒子束》 * |
| 张永辉 等: "一种同轴高压电容分压器的设计", 《高电压技术》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114878943A (en) * | 2022-05-27 | 2022-08-09 | 湘潭大学 | Method for evaluating and guaranteeing low-frequency performance of D-dot probe |
| CN114878943B (en) * | 2022-05-27 | 2024-06-18 | 湘潭大学 | Evaluation and guarantee method for low-frequency performance of D-dot probe |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107037254B (en) | 2023-04-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Qi et al. | Partial discharge initiated by free moving metallic particles on GIS insulator surface: severity diagnosis and assessment | |
| CN105277857B (en) | A kind of bushing shell for transformer of monitoring on-line makes moist the method for defect | |
| CN206281814U (en) | A kind of probe for measuring reinforced bar sleeve grouting plumpness | |
| CN109003766B (en) | Stack type water resistance voltage divider for measuring pulse high voltage in vacuum environment | |
| CN107505551B (en) | Gas insulated switchgear ultrahigh frequency sensor arrangement test device and application | |
| CN206420943U (en) | A kind of D dot for vacuum diode voltage measurement pop one's head in | |
| CN103558534A (en) | Two-dimensional Weibull parameter spectrum clustering method of high voltage cable discharge signal | |
| CN1945305A (en) | Test method and device for repeated nanosecond pulse medium breakdown characteristic | |
| Qi et al. | Severity diagnosis and assessment of the partial discharge provoked by high-voltage electrode protrusion on GIS insulator surface | |
| CN107037254A (en) | A kind of D dot for vacuum diode voltage measurement pop one's head in | |
| CN105334371B (en) | Induced voltage superimposer secondary current measuring system and its caliberating device and method | |
| CN106556725A (en) | For the coaxial-type diverter of X pinch load current measurements | |
| Edson et al. | Capacitance voltage divider for high‐voltage pulse measurement | |
| CN110381659B (en) | Radio frequency dynamic capacitive coupling plasma diagnosis system and method | |
| CN114878943B (en) | Evaluation and guarantee method for low-frequency performance of D-dot probe | |
| CN110412432B (en) | Coaxial lead structure and method for external radiation of GIS partial discharge UHF signal | |
| CN106442634B (en) | Field sensitive type Spark gap material testing art based on coaxial test device | |
| CN106645876A (en) | Measurement system and measurement method for high-frequency transit voltage in GIS | |
| CN206710469U (en) | Oscillograph high-voltage probe expansion module | |
| CN203838215U (en) | Capacitive voltage divider capable of adjusting voltage division ratio | |
| CN104515910A (en) | Sensor for testing harmonic electric field around UHVDC (ultrahigh voltage direct current) line insulators | |
| CN106918734A (en) | A kind of B dot probes for vacuum diode current measurement | |
| CN108007980A (en) | A kind of lubricating oil product quality detection capacitive sensing probe | |
| CN106443287A (en) | Coaxial device for testing property of field-sensitive electromagnetic pulse protection material | |
| CN207832729U (en) | A kind of online device for detecting water content of cereal |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |