CN112782542B - Discharge observation synchronous triggering system and method based on ultrahigh frequency signal - Google Patents
Discharge observation synchronous triggering system and method based on ultrahigh frequency signal Download PDFInfo
- Publication number
- CN112782542B CN112782542B CN202110002050.3A CN202110002050A CN112782542B CN 112782542 B CN112782542 B CN 112782542B CN 202110002050 A CN202110002050 A CN 202110002050A CN 112782542 B CN112782542 B CN 112782542B
- Authority
- CN
- China
- Prior art keywords
- discharge
- signal
- ultrahigh frequency
- trigger
- synchronous
- 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.)
- Active
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
- G01R31/1227—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials
- G01R31/1263—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials of solid or fluid materials, e.g. insulation films, bulk material; of semiconductors or LV electronic components or parts; of cable, line or wire insulation
- G01R31/1281—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials of solid or fluid materials, e.g. insulation films, bulk material; of semiconductors or LV electronic components or parts; of cable, line or wire insulation of liquids or gases
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Relating To Insulation (AREA)
Abstract
The invention discloses a discharge observation synchronous triggering system based on an ultrahigh frequency signal, which comprises: a discharge device configured to generate a discharge and to emit a discharge signal; an ultrahigh frequency sensor that detects an ultrahigh frequency signal generated by the discharge; the synchronous trigger pulse generation module is connected with the ultrahigh frequency sensor so as to convert an ultrahigh frequency signal generated by the ultrahigh frequency sensor into a TTL pulse trigger signal, and only one TTL pulse trigger signal is generated in one discharging process; the oscilloscope is respectively connected with the ultrahigh frequency sensor and the synchronous trigger pulse generation module to display the ultrahigh frequency signal and the TTL pulse trigger signal; and the acquisition device is connected with the synchronous trigger pulse generation module, receives the TTL pulse trigger signal output by the synchronous trigger pulse generation module, and synchronously acquires a discharge signal of the discharge equipment corresponding to the TTL pulse trigger signal. Correspondingly, the invention also discloses a discharge observation synchronous triggering method based on the ultrahigh frequency signal.
Description
Technical Field
The present invention relates to a synchronous triggering system and method, and more particularly, to a synchronous triggering system and method for discharge observation.
Background
Gas discharge has been receiving attention from researchers as a fundamental research problem in the high voltage field. At present, the experiment is still the most intuitive and accurate research mode for researching the discharge process. The key characteristic parameters for describing the discharge process are obtained through various experimental observation means and measurement technologies, which is helpful for explaining the mechanism of discharge development and promoting the development of the gas discharge theory.
Gas discharge involves a complex movement of charged particles, accompanied by macroscopic physical phenomena such as heat, light, electricity, and the like. The establishment of a multi-physical quantity synchronous observation system of electricity, light and the like and the accurate acquisition of various physical parameters of gas discharge have important significance for recognizing all details of the discharge process and deeply researching the discharge development process. In order to improve the timeliness of parameter acquisition, the problem of synchronism between the discharge starting time and the action time of the observation equipment must be solved.
In the prior art, the triggering mode when the high-voltage AC/DC power supply is used is generally manual triggering. The triggering time and the discharging time of the triggering mode are difficult to be accurately synchronized, and certain time error exists in an observation result easily, so that the discharging information at the starting moment is not acquired. Therefore, it is a difficult point in the related field to simply, rapidly and accurately obtain the automatic trigger signal synchronized with the gas discharge for controlling the actions of various acquisition devices. In addition, besides the application in discharge experiment observation, a discharge synchronous trigger signal is often required in engineering application occasions of multi-parameter synchronous acquisition, such as substation field sound and electricity joint detection.
Based on the above, aiming at the defects in the prior art, the invention is expected to obtain a discharge observation synchronous triggering system and method based on an ultrahigh frequency signal so as to realize high-sensitivity reliable synchronous triggering in the discharge process of a high-voltage alternating current/direct current power supply and solve the problems that no synchronous triggering signal exists or the synchronous triggering signal is inaccurate in a discharge observation experiment and a transformer substation engineering application field.
Disclosure of Invention
One of the purposes of the invention is to provide a discharge observation synchronous triggering system based on an ultrahigh frequency signal, which can realize high-sensitivity reliable synchronous triggering in the discharge process of a high-voltage alternating-current/direct-current power supply, can be widely applied to occasions requiring synchronous triggering signals, such as discharge observation experiments, transformer substation field sound-electricity combined detection and the like, solves the problem that no synchronous triggering signal or inaccurate synchronous triggering signal exists in the discharge observation experiments and transformer substation engineering application fields, and has good popularization prospect and application value.
According to the above object, the present invention provides a discharge observation synchronous triggering system based on ultrahigh frequency signal, which comprises:
a discharge device configured to generate a discharge and to emit a discharge signal;
an ultrahigh frequency sensor that detects an ultrahigh frequency signal generated by the discharge;
a synchronous trigger pulse generation module connected with the ultrahigh frequency sensor to convert the ultrahigh frequency signal generated by the ultrahigh frequency sensor into a TTL (transistor-transistor logic) pulse trigger signal, wherein the synchronous trigger pulse generation module is set to generate only one TTL pulse trigger signal in one discharge process;
the oscilloscope is respectively connected with the ultrahigh frequency sensor and the synchronous trigger pulse generation module to display the ultrahigh frequency signal and the TTL pulse trigger signal;
and the acquisition device is connected with the synchronous trigger pulse generation module, receives the TTL pulse trigger signal output by the synchronous trigger pulse generation module, and synchronously acquires the discharge signal of the discharge equipment corresponding to the TTL pulse trigger signal.
In the technical scheme, the invention provides the discharge observation synchronous triggering system based on the ultrahigh frequency signal, and the system can effectively solve the problem that no synchronous triggering signal exists in discharge observation or the synchronous triggering signal is inaccurate under a high-voltage alternating current/direct current power supply.
In the discharge observation synchronous triggering system, the ultrahigh frequency sensor is adopted to detect the ultrahigh frequency signal generated by discharge, the ultrahigh frequency detection method has high sensitivity and strong anti-interference capability, the rising edge of the ultrahigh frequency signal is in ns level, and the signal error used for synchronous measurement is extremely small.
It should be noted that the discharge observation synchronous triggering system based on the ultrahigh frequency signal of the present invention can be used not only for observing partial discharge, but also for other discharge forms. Also, in some embodiments, the discharging device generating the discharge and emitting the discharge signal may include: optical, acoustic and/or electrical signals.
Further, in the discharge observation synchronous triggering system of the present invention, the discharge device includes a discharge generating device that generates a discharge signal in an analog manner.
Further, in the discharge observation synchronous triggering system, the discharge generating device comprises a partial discharge model and a high-voltage power supply connected with the partial discharge model.
Further, in the discharge observation synchronous triggering system of the present invention, the partial discharge model is a needle electrode or a needle plate electrode.
Further, in the discharge observation synchronous triggering system of the present invention, the collecting device includes at least one of a camera, a sound signal collecting device, and an electrical signal collecting device.
Further, in the discharge observation synchronous trigger system of the present invention, a partial discharge detector is further included, and is connected to the discharge generating device to detect a partial discharge signal of the discharge generating device.
Furthermore, in the discharge observation synchronous trigger system, a partial discharge signal amplifier is connected between the partial discharge detector and the partial discharge equipment.
Further, in the discharge observation synchronous trigger system of the present invention, the synchronous trigger pulse generation module includes:
a voltage comparison circuit for receiving the ultrahigh frequency signal transmitted by the ultrahigh frequency sensor to output an ECL (Emitter Coupled Logic) level; the reference voltage of the voltage comparison circuit is adjustable, so that only one ECL level is generated in one discharging process;
a level conversion circuit which converts the ECL level outputted from the voltage comparison circuit into a TTL level;
and the pulse width adjusting circuit receives the TTL level output by the level conversion circuit and adjusts the pulse width of the TTL level to output a TTL pulse trigger signal adaptive to the acquisition device.
In the technical scheme, in the discharge observation synchronous triggering system, the voltage comparison circuit in the synchronous triggering pulse generation module uses the ECL integrated circuit to receive the ultrahigh frequency signal transmitted by the ultrahigh frequency sensor and output an ECL level, and the average delay time is in the order of ps, so that the accuracy of synchronous triggering can be effectively ensured.
In addition, the synchronous trigger pulse generation module has the functions of adjustable trigger threshold, adjustable trigger time delay and pulse width adjustment, can flexibly convert ultrahigh frequency signals generated by partial discharge into different TTL level signals, and is convenient for matching the trigger signal requirements of different acquisition devices.
Further, in the discharge observation synchronous trigger system of the present invention, the voltage comparison circuit includes a sliding resistor, and the resistance value of the sliding resistor is adjusted to adjust the reference voltage.
Accordingly, another objective of the present invention is to provide a discharge observation synchronous triggering method based on an ultrahigh frequency signal, which is implemented based on the discharge observation synchronous triggering system of the present invention, and which can realize high-sensitivity reliable synchronous triggering in the discharge process of a high-voltage ac/dc power supply, and solve the problem of no synchronous triggering signal or inaccurate synchronous triggering signal in a discharge observation experiment and in a substation engineering application field.
According to the above object, the present invention provides a discharge observation synchronous triggering method based on ultrahigh frequency signals, which comprises the steps of:
inputting the collected ultrahigh frequency signal discharged by the discharge equipment into a synchronous trigger pulse generation module;
adjusting the reference voltage of the synchronous trigger pulse generation module, and simultaneously observing the waveforms of TTL pulse trigger signals displayed on an oscilloscope to ensure that only one TTL pulse trigger signal is generated in one discharging process;
and outputting the TTL pulse trigger signal to an acquisition device, wherein the acquisition device synchronously acquires a discharge signal of the discharge equipment corresponding to the TTL pulse trigger signal.
Compared with the prior art, the discharge observation synchronous triggering system and method based on the ultrahigh frequency signal have the advantages and beneficial effects as follows:
(1) the discharge observation synchronous triggering system based on the ultrahigh frequency signal can realize high-sensitivity reliable synchronous triggering in the discharge process of the high-voltage alternating-current/direct-current power supply, can be widely applied to occasions needing synchronous triggering signals, such as discharge observation experiments, site acoustoelectric joint detection of transformer substations and the like, and solves the problem that no synchronous triggering signal or inaccurate synchronous triggering signal exists in the discharge observation experiments and the application sites of transformer substation engineering.
(2) In the discharge observation synchronous triggering system, the ultrahigh frequency sensor is adopted to detect the ultrahigh frequency signal generated by discharge, the ultrahigh frequency detection method has high sensitivity and strong anti-interference capability, the rising edge of the ultrahigh frequency signal is in ns level, and the signal error used for synchronous measurement is extremely small.
(3) In some embodiments, the voltage comparison circuit in the synchronous trigger pulse generation module according to the present invention uses an ECL integrated circuit to receive the uhf signal transmitted by the uhf sensor and output an ECL level, and the average delay time of the ECL level is in the order of ps, which can effectively ensure the accuracy of synchronous triggering. In addition, the synchronous trigger pulse generation module has the functions of adjustable trigger threshold, adjustable trigger time delay and pulse width adjustment, can flexibly convert ultrahigh frequency signals generated by partial discharge into different TTL level signals, and is convenient for matching the trigger signal requirements of different acquisition devices.
(4) The invention can control the synchronization of the trigger time and the discharge time of the acquisition device on the premise of ensuring that one pulse trigger signal is generated in one discharge process, thereby improving the timeliness of discharge information acquisition. The discharge observation synchronous trigger system has high sensitivity, complete functions and low cost, and can be used in any occasions needing synchronous trigger signals, such as discharge experiments, site acoustoelectric joint detection of transformer substations and the like, so that the discharge observation synchronous trigger system is extremely wide in application and has good popularization prospect and application value.
Drawings
Fig. 1 is a schematic device connection diagram of a discharge observation synchronous triggering system based on a uhf signal according to an embodiment of the present invention.
Fig. 2 schematically shows a schematic structural block diagram of the discharge observation synchronous triggering system based on the ultrahigh frequency signal according to the invention.
Detailed Description
The system and method for discharge observation synchronous triggering based on uhf signals according to the present invention will be further explained and explained with reference to the drawings and specific embodiments of the present specification, but the explanation and explanation do not unduly limit the technical solution of the present invention.
Fig. 1 is a schematic device connection diagram of a discharge observation synchronous triggering system based on a uhf signal according to an embodiment of the present invention.
As shown in fig. 1, the discharge observation synchronous triggering system based on the uhf signal according to the present invention may include: the device comprises a discharge device, an ultrahigh frequency sensor, a synchronous trigger pulse generation module, an oscilloscope and an acquisition device. The discharge device can generate discharge and emit a discharge signal, and the ultrahigh frequency sensor can detect the ultrahigh frequency signal generated by the discharge. Correspondingly, the synchronous trigger pulse generation module connected with the ultrahigh frequency sensor can convert the ultrahigh frequency signal generated by the ultrahigh frequency sensor into a TTL pulse trigger signal, and the TTL pulse trigger signal is set to generate only one TTL pulse trigger signal in one discharging process.
In addition, in the invention, the oscilloscope is respectively connected with the ultrahigh frequency sensor and the synchronous trigger pulse generation module, and can display the ultrahigh frequency signal and the TTL pulse trigger signal. The acquisition device is connected with the synchronous trigger pulse generation module, can receive the TTL pulse trigger signal output by the synchronous trigger pulse generation module, and synchronously acquires the discharge signal of the discharge equipment corresponding to the TTL pulse trigger signal.
It should be noted that, in the discharge observation synchronous trigger system of the present invention, the collected ultrahigh frequency signal discharged by the discharge device may be input into the synchronous trigger pulse generation module, then the reference voltage of the synchronous trigger pulse generation module is adjusted, and the TTL pulse trigger signal waveform displayed on the oscilloscope is observed at the same time, so as to ensure that only one TTL pulse trigger signal is generated in one discharge process. And finally, outputting the TTL pulse trigger signal to an acquisition device, wherein the acquisition device can synchronously acquire a discharge signal of the discharge equipment corresponding to the TTL pulse trigger signal.
Accordingly, it should be noted that in the discharge observation synchronization triggering system according to the present invention, the discharge device may include a discharge generation device that generates a discharge signal in an analog manner. In the present embodiment, as shown in fig. 1, the discharge observation synchronous triggering system according to the present invention may be used to observe partial discharge, wherein the discharge generating device may include a partial discharge model and a high voltage power supply connected thereto, and the uhf sensor and the collecting device are aligned with the partial discharge model.
Of course, in some embodiments, the discharge observation synchronous triggering system of the present invention can be used for observing partial discharge and other discharge forms.
In the embodiment shown in fig. 1, the acquisition Device is an enhanced Charge Coupled Device (ICCD) camera, the partial discharge model is a pin plate electrode, and the high-voltage power supply is an ac power supply. The needle plate electrode is selected as a partial discharge model to be connected into an experimental loop, the ultrahigh frequency sensor is aligned to the partial discharge model, the ultrahigh frequency sensor can be connected with the synchronous trigger pulse generation module through a radio frequency coaxial cable, the synchronous trigger pulse generation module can be connected with an ICCD camera through another radio frequency coaxial cable, and the ICCD camera is aligned to the partial discharge model. In the present embodiment, the detection frequency band of the uhf sensor is preferably 300 to 3000MHz, and the average effective height is preferably 11.77 mm; the oscilloscope has four channels, the single channel sampling rate is 10GS/s, the storage depth is 128M, and the analog bandwidth is 2 GHz.
Of course, in some other embodiments, the partial discharge model may also be a needle electrode or other discharge electrodes that need to be studied, and the high voltage power supply may also be a dc power supply.
In the discharge observation synchronous triggering system, the acquisition device may include at least one of a camera, a sound signal acquisition device and an electric signal acquisition device. Correspondingly, the discharge signal emitted by the discharge device may be an optical signal, an acoustic signal or an electrical signal. Wherein, the camera can be used for gathering optical signal, and sound signal collection system can be used for gathering the acoustic signal, and signal of telecommunication collection system can be used for gathering the signal of telecommunication.
In addition, in this embodiment, the discharge observation synchronous triggering system according to the present invention further includes a partial discharge detector and a partial discharge signal amplifier. The partial discharge detector is connected with a discharge generating device in the system so as to detect a partial discharge signal of the discharge generating device; a partial discharge signal amplifier is disposed between the partial discharge detector and the partial discharge device, which may be used to amplify the partial discharge signal.
Fig. 2 schematically shows a schematic structural block diagram of the discharge observation synchronous triggering system based on the ultrahigh frequency signal according to the invention.
As shown in fig. 2, and as can be seen by referring to fig. 1 in combination, in the discharge observation synchronous triggering system according to the present invention, the synchronous trigger pulse generation module has functions of adjustable trigger threshold, adjustable trigger time delay, and pulse width adjustment. Accordingly, the synchronization trigger generation module may include: the circuit comprises a voltage comparison circuit, a level conversion circuit and a pulse width regulation circuit. The voltage comparison circuit has the functions of adjustable trigger threshold and adjustable trigger time delay, and the pulse width adjusting circuit can be used for adjusting the width of a trigger pulse signal.
In the invention, the voltage comparison circuit in the synchronous trigger pulse generation module can receive the ultrahigh frequency signal V transmitted by the ultrahigh frequency sensor1And outputs an ECL level. It should be noted that the reference voltage of the voltage comparison circuit is adjustable, and the reference voltage V of the voltage comparison circuit is adjustedrefCan be made onceThe discharge process produces only one ECL level.
Accordingly, the level conversion circuit may receive the ECL level output from the voltage comparison circuit and convert the ECL level to a TTL level. The pulse width adjusting circuit can receive the TTL level output by the level conversion circuit and adjust the pulse width of the TTL level to output TTL pulse trigger signals V adaptive to different acquisition deviceso. In some embodiments, the voltage comparison circuit may include a sliding resistor, and the adjustment of the reference voltage may be achieved by adjusting a resistance value of the sliding resistor.
It should be noted that, in a discharge process, an ns-level ultrahigh frequency signal generated by the ultrahigh frequency sensor passes through the voltage comparison circuit to form an ECL level signal; then entering a level conversion circuit, and converting the ECL level signal into a TTL level signal; and finally, the pulse width is adjusted by entering a pulse width adjusting circuit to form standard pulse trigger signals which are adaptive to different acquisition devices, and the average delay time of the circuit is in the order of ps, so that the accuracy of synchronous triggering is ensured.
In conclusion, the discharge observation synchronous triggering system based on the ultrahigh frequency signal can realize high-sensitivity reliable synchronous triggering in the discharge process of the high-voltage alternating-current/direct-current power supply, can be widely applied to occasions needing synchronous triggering signals, such as discharge observation experiments, transformer substation field sound-electricity joint detection and the like, and has good popularization prospect and application value.
It should be noted that the prior art in the protection scope of the present invention is not limited to the examples given in the present application, and all the prior art which is not inconsistent with the technical scheme of the present invention, including but not limited to the prior patent documents, the prior publications and the like, can be included in the protection scope of the present invention.
In addition, the combination of the features in the present application is not limited to the combination described in the claims of the present application or the combination described in the embodiments, and all the features described in the present application may be freely combined or combined in any manner unless contradictory to each other.
It should also be noted that the above-mentioned embodiments are only specific embodiments of the present invention. It is apparent that the present invention is not limited to the above embodiments and similar changes or modifications can be easily made by those skilled in the art from the disclosure of the present invention and shall fall within the scope of the present invention.
Claims (10)
1. A discharge observation synchronous triggering system based on a ultrahigh frequency signal is characterized by comprising:
a discharge device configured to generate a discharge and to emit a discharge signal;
an ultrahigh frequency sensor that detects an ultrahigh frequency signal generated by the discharge;
the synchronous trigger pulse generation module is connected with the ultrahigh frequency sensor so as to convert an ultrahigh frequency signal generated by the ultrahigh frequency sensor into a TTL pulse trigger signal, and the synchronous trigger pulse generation module is set to generate only one TTL pulse trigger signal in a discharge process;
the oscilloscope is respectively connected with the ultrahigh frequency sensor and the synchronous trigger pulse generation module to display the ultrahigh frequency signal and the TTL pulse trigger signal;
and the acquisition device is connected with the synchronous trigger pulse generation module, receives the TTL pulse trigger signal output by the synchronous trigger pulse generation module, and synchronously acquires the discharge signal of the discharge equipment corresponding to the TTL pulse trigger signal.
2. The discharge observation synchronized triggering system of claim 1, wherein the discharge device comprises a discharge generating means that simulates a generated discharge signal.
3. The discharge observation synchronized triggering system of claim 2, wherein said discharge generating means comprises a partial discharge model and a high voltage power supply connected thereto.
4. The discharge observation synchronized trigger system of claim 3, wherein the partial discharge model is a needle electrode or a needle plate electrode.
5. The discharge observation synchronized triggering system of claim 1, wherein the collection device comprises at least one of a camera, a sound signal collection device, and an electrical signal collection device.
6. The discharge observation synchronous triggering system as recited in claim 3, further comprising a partial discharge detector connected to the discharge generating device to detect a partial discharge signal of the discharge generating device.
7. The discharge observation synchronous trigger system of claim 6, wherein a partial discharge signal amplifier is further connected between the partial discharge detector and the partial discharge device.
8. The discharge observation synchronized trigger system of any one of claims 1-7, wherein the synchronized trigger pulse generation module comprises:
a voltage comparison circuit which receives the ultrahigh frequency signal transmitted by the ultrahigh frequency sensor to output an ECL level; the reference voltage of the voltage comparison circuit is adjustable, so that only one ECL level is generated in one discharging process;
a level conversion circuit which converts the ECL level outputted from the voltage comparison circuit into a TTL level;
and the pulse width adjusting circuit receives the TTL level output by the level conversion circuit and adjusts the pulse width of the TTL level to output a TTL pulse trigger signal adaptive to the acquisition device.
9. The discharge observation synchronous trigger system of claim 8, wherein the voltage comparison circuit comprises a sliding resistor, and the resistance of the sliding resistor is adjusted to adjust the reference voltage.
10. A discharge observation synchronous triggering method based on ultrahigh frequency signals, which is implemented based on the discharge observation synchronous triggering system according to any one of claims 1-9, and comprises the following steps:
inputting the collected ultrahigh frequency signal discharged by the discharge equipment into a synchronous trigger pulse generation module;
adjusting the reference voltage of the synchronous trigger pulse generation module, and simultaneously observing the waveforms of TTL pulse trigger signals displayed on an oscilloscope to ensure that only one TTL pulse trigger signal is generated in one discharging process;
and outputting the TTL pulse trigger signal to an acquisition device, wherein the acquisition device synchronously acquires a discharge signal of the discharge equipment corresponding to the TTL pulse trigger signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110002050.3A CN112782542B (en) | 2021-01-04 | 2021-01-04 | Discharge observation synchronous triggering system and method based on ultrahigh frequency signal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110002050.3A CN112782542B (en) | 2021-01-04 | 2021-01-04 | Discharge observation synchronous triggering system and method based on ultrahigh frequency signal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112782542A CN112782542A (en) | 2021-05-11 |
| CN112782542B true CN112782542B (en) | 2022-03-18 |
Family
ID=75753663
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110002050.3A Active CN112782542B (en) | 2021-01-04 | 2021-01-04 | Discharge observation synchronous triggering system and method based on ultrahigh frequency signal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112782542B (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105572548A (en) * | 2015-12-14 | 2016-05-11 | 清华大学深圳研究生院 | Measurement system and method of steamer discharge of non-uniform field |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2537113B (en) * | 2015-04-01 | 2018-05-23 | High Voltage Partial Discharge Ltd | Apparatus and method for monitoring partial discharge |
-
2021
- 2021-01-04 CN CN202110002050.3A patent/CN112782542B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105572548A (en) * | 2015-12-14 | 2016-05-11 | 清华大学深圳研究生院 | Measurement system and method of steamer discharge of non-uniform field |
Non-Patent Citations (3)
| Title |
|---|
| 三电极结构流注放电试验平台;王纯洁 等;《高电压技术》;20190131;第45卷(第1期);第103-108页 * |
| 电力变压器局部放电带电检测及定位技术综述;刘嘉林 等;《绝缘材料》;20151231;第48卷(第8期);第1-7页 * |
| 针_板电极空气隙直流放电光信息采集;郑殿春 等;《哈尔滨理工大学学报》;20140630;第19卷(第3期);第95-99页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112782542A (en) | 2021-05-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101556306B (en) | Switch apparatus back-arc medium recovery strength nanosecond continuous pulse measuring device and method thereof | |
| CN104237831A (en) | Set for calibrating tester of arrester counter | |
| CN104280669A (en) | Streamer discharge test system, method, streamer generating device and measuring system thereof | |
| CN106324538B (en) | A kind of shelf depreciation automated calibration system | |
| CN1877348A (en) | Transient strong electromagnetic pulse testing device | |
| CN204101715U (en) | A kind of counter of lightning arrester tester calibration device | |
| CN203965489U (en) | A kind of shelf depreciation high voltage pulse generation device | |
| CN101702012B (en) | Apparent charge calibrator for local discharge capacity measurement | |
| CN102375106A (en) | Device for testing harmonic influence of electronic mutual inductor | |
| CN112782542B (en) | Discharge observation synchronous triggering system and method based on ultrahigh frequency signal | |
| CN109633404B (en) | PXI-based avalanche photodetector electrical characteristic test system | |
| CN201368887Y (en) | Test probe for collecting test signal | |
| CN110045199B (en) | EFT/ESD/CS electromagnetic interference analyzer | |
| CN106154130A (en) | A kind of photo-electric surge voltage test device and method | |
| CN102129088A (en) | Ground detector transmitter | |
| CN202285032U (en) | Electronic transformer harmonic influence testing device | |
| CN109936347B (en) | High-voltage compensation device of pulse modulator | |
| CN109387770B (en) | Method for testing working electrical parameters of high-frequency vacuum electronic oscillator | |
| EP2449669B1 (en) | Capacitor charger system and digital control module and isolated acquisition module for such a capacitor charger system | |
| He et al. | Design of Nanosecond-level Transient Electric Field Sensor and its Application in HVDC Converter Station | |
| CN206788313U (en) | A kind of bipolar power transistor switch time parameter and standard detection means | |
| CN203811648U (en) | Standard sample for testing electromagnetic compatibility of lamp product | |
| CN206922717U (en) | A kind of photovoltaic panel output characteristic curve tester | |
| CN217133260U (en) | Kiloampere level emission current peak value detection circuit for aviation electromagnetic transmitter | |
| CN112834996B (en) | Radar sensing module testing method and device |
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 |