CN106842091A - The calibration equipment of AE live testing apparatus for local discharge, method and device - Google Patents
The calibration equipment of AE live testing apparatus for local discharge, method and device Download PDFInfo
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- CN106842091A CN106842091A CN201611142015.7A CN201611142015A CN106842091A CN 106842091 A CN106842091 A CN 106842091A CN 201611142015 A CN201611142015 A CN 201611142015A CN 106842091 A CN106842091 A CN 106842091A
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- testing apparatus
- local discharge
- signal
- calibration equipment
- sonac
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R35/00—Testing or calibrating of apparatus covered by the other groups of this subclass
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- General Physics & Mathematics (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
The invention discloses a kind of calibration equipment, the method and device of AE live testing apparatus for local discharge.Wherein, the calibration equipment includes：Impulse generator, for launching demarcation signal；Coupling device, is connected by coaxial RF cables with a check platform, and tested sonac is attached to check platform pre-position；And ultrasound measuring instrument main frame, for detecting impulse response signal, wherein, pulse signal is used to indicate the test performance of AE live testing apparatus for local discharge with the comparing result of demarcation signal.The present invention solves correlation technique and the technical problem of field-checking cannot be carried out to AE live testing apparatus for local discharge.
Description
Technical field
The present invention relates to power domain, in particular to a kind of calibration equipment of AE live testing apparatus for local discharge,
Method and device.
Background technology
Investigation shows not yet there is scientific and effective AE partial discharge detections device situ method at present, is typically also using sparking
The simple mode system of being struck sparks near RFCT of device has reaction, and the system that can only find has serious hydraulic performance decline or damage,
And cannot effectively find the slight decline of systematic function or carry out quantitatively evaluating.
The problem of field-checking cannot be carried out to AE live testing apparatus for local discharge for correlation technique, is not yet carried at present
Go out effective solution.
The content of the invention
A kind of calibration equipment, the method and device of AE live testing apparatus for local discharge are the embodiment of the invention provides, with
At least solving correlation technique cannot carry out the technical problem of field-checking to AE live testing apparatus for local discharge.
One side according to embodiments of the present invention, there is provided a kind of verification of AE live testing apparatus for local discharge sets
It is standby, including：Impulse generator, for launching demarcation signal；Coupling device, is connected by coaxial RF cables with a check platform,
Tested sonac is attached to check platform pre-position；And ultrasound measuring instrument main frame, for detecting impulse response signal,
Wherein, pulse signal is used to indicate the test performance of AE live testing apparatus for local discharge with the comparing result of demarcation signal.
Further, the heart yearn of coupling device is connected with impulse generator and check platform respectively.
Further, checking platform includes upper mounting plate and lower platform, wherein, sonac is located at upper mounting plate and lower platform
Between.
Further, upper mounting plate is connected with the heart yearn of coupling device, and lower platform is connected with ultrasound measuring instrument main frame.
Further, the positive-negative polarity of impulse generator is convertible, and the rise time of impulse waveform is less than or equal to 1us, under
The drop time is more than or equal to 100us, output waveform voltage peak between 10mV to 5V, including 10mV, 20mV, 50mV, 1V,
2V, 3V, 4V, 5V gear, the stability of output amplitude is higher than 95%.
Further, impulse generator is hand-held.
Another aspect according to embodiments of the present invention, additionally provides a kind of verification side of AE live testing apparatus for local discharge
Method, including：The demarcation signal of control sonac acquisition pulse generator transmitting；Obtain what ultrasound measuring instrument Host Detection was arrived
Impulse response signal；By the test performance that AE live testing apparatus for local discharge is analyzed than pulse signals and demarcation signal.
Further, before the demarcation signal of control sonac acquisition pulse generator transmitting, method of calibration is also
Including：Control impulse generator connection coupling device；Sonac is attached to check platform pre-position, wherein, coupling
Device is connected by coaxial RF cables with platform is checked.
Another aspect according to embodiments of the present invention, additionally provides a kind of verification dress of AE live testing apparatus for local discharge
Put, including：First control unit, for the demarcation signal for controlling sonac acquisition pulse generator to launch；Acquiring unit,
For obtaining the impulse response signal that ultrasound measuring instrument Host Detection is arrived；Analytic unit, for by than pulse signals and mark
Determine the test performance of signal analysis AE live testing apparatus for local discharge.
Further, calibration equipment also includes：Second control unit, for occurring in control sonac acquisition pulse
Before the demarcation signal of device transmitting, control impulse generator connection coupling device；Placement unit, for sonac to be attached to
Platform pre-position is checked, wherein, coupling device is connected by coaxial RF cables with platform is checked.
In embodiments of the present invention, the calibration equipment of AE live testing apparatus for local discharge includes impulse generator, is used for
Transmitting demarcation signal；Coupling device, is connected by coaxial RF cables with a check platform, and it is flat that tested sonac is attached to check
Platform pre-position；And ultrasound measuring instrument main frame, for detecting impulse response signal, wherein, pulse signal and demarcation signal
Comparing result be used to indicate the test performance of AE live testing apparatus for local discharge., reached at the scene in real time to AE parts
The electric discharge purpose that is verified of measuring device with electricity, so solve correlation technique cannot be to AE live testing apparatus for local discharge
Carry out the technical problem of field-checking, it is achieved thereby that improve AE live testing apparatus for local discharge to Partial Discharge Detection yes
The technique effect of accuracy.
Brief description of the drawings
Accompanying drawing described herein is used for providing a further understanding of the present invention, constitutes the part of the application, this hair
Bright schematic description and description does not constitute inappropriate limitation of the present invention for explaining the present invention.In the accompanying drawings：
Fig. 1 is the schematic diagram of the calibration equipment of AE live testing apparatus for local discharge according to embodiments of the present invention；
Fig. 2 is the flow chart of the method for calibration of AE live testing apparatus for local discharge according to embodiments of the present invention；And
Fig. 3 is the schematic diagram of the calibration equipment of AE live testing apparatus for local discharge according to embodiments of the present invention.
Specific embodiment
In order that those skilled in the art more fully understand the present invention program, below in conjunction with the embodiment of the present invention
Accompanying drawing, is clearly and completely described to the technical scheme in the embodiment of the present invention, it is clear that described embodiment is only
The embodiment of a part of the invention, rather than whole embodiments.Based on the embodiment in the present invention, ordinary skill people
The every other embodiment that member is obtained under the premise of creative work is not made, should all belong to the model of present invention protection
Enclose.
It should be noted that term " first ", " in description and claims of this specification and above-mentioned accompanying drawing
Two " it is etc. for distinguishing similar object, without for describing specific order or precedence.It should be appreciated that so using
Data can exchange in the appropriate case, so as to embodiments of the invention described herein can with except illustrating herein or
Order beyond those of description is implemented.Additionally, term " comprising " and " having " and their any deformation, it is intended that cover
Lid is non-exclusive to be included, for example, the process, method, system, product or the equipment that contain series of steps or unit are not necessarily limited to
Those steps or unit clearly listed, but may include not list clearly or for these processes, method, product
Or other intrinsic steps of equipment or unit.
According to embodiments of the present invention, there is provided a kind of embodiment of the calibration equipment of AE live testing apparatus for local discharge.
Fig. 1 is the schematic diagram of the calibration equipment of AE live testing apparatus for local discharge according to embodiments of the present invention, such as Fig. 1
Shown, the calibration equipment of AE live testing apparatus for local discharge can include：Impulse generator, for launching demarcation signal；Coupling
Attach together and put, be connected with a check platform by coaxial RF cables, tested sonac is attached to check platform pre-position；With
And ultrasound measuring instrument main frame, for detecting impulse response signal, wherein, pulse signal is used to refer to the comparing result of demarcation signal
Show the test performance of AE live testing apparatus for local discharge.
Alternatively, the heart yearn of coupling device is connected with impulse generator and check platform respectively.
Alternatively, checking platform includes upper mounting plate and lower platform, wherein, sonac be located at upper mounting plate and lower platform it
Between.
Alternatively, upper mounting plate is connected with the heart yearn of coupling device, and lower platform is connected with ultrasound measuring instrument main frame.
Alternatively, the positive-negative polarity of impulse generator is convertible, and the rise time of impulse waveform is less than or equal to 1us, declines
Time is more than or equal to 100us, output waveform voltage peak between 10mV to 5V, including 10mV, 20mV, 50mV, 1V, 2V,
3V, 4V, 5V gear, the stability of output amplitude is higher than 95%.
Alternatively, impulse generator is hand-held.
Present invention also offers a kind of preferred embodiment, the preferred embodiment is the scene of UHF partial discharge electrification detection devices
Checkschema, is described in detail below the preferred embodiment.
The field-checking equipment of AE partial discharge electrification detection devices can include：
(1) signal generator：Pulse polarity energy sign change, the impulse waveform rise time is not more than 1us, and fall time is not
Less than 100us, voltage pulse output peak value is adjustable in 10mV-5V intervals, and adjustable range is divided into 10mV/20mV/50mV/1V/2V/
The several gears of 3V/4V/5V.Signal generator is preferably designed as hand-held, and signal generator output amplitude stability requirement reaches
To more than 95%.
(2) coupling device：Coupling device is connected by coaxial RF cables with emission sensor, fixed launcher during test
Distance and position with tested ultrasonic sensor, it is specific as shown in Figure 1.
Method of testing
1) pulse signal generator connection coupling device, tested sonac is attached to check platform fixed position；
2) ultrasonic partial discharge test system is connected, and starting up is to normal acquisition state；
3) control impulse generator sends demarcation signal sequence at equal intervals, the impulse response that observation ultrasound measuring instrument is detected
Signal, the amplitude according to detection signal judges whether detecting system performance is normal with historical record contrast.
According to embodiments of the present invention, there is provided a kind of method of calibration embodiment of AE live testing apparatus for local discharge, need
It is noted that can be in the such as one group computer system of computer executable instructions the step of the flow of accompanying drawing is illustrated
Middle execution, and, although show logical order in flow charts, but in some cases, can be with different from herein
Order performs shown or described step.
Fig. 2 is the flow chart of the method for calibration of AE live testing apparatus for local discharge according to embodiments of the present invention, such as Fig. 2
Shown, the method comprises the following steps：
Step S102, the demarcation signal of control sonac acquisition pulse generator transmitting；
Step S104, obtains the impulse response signal that ultrasound measuring instrument Host Detection is arrived；
Step S106, by the testability that AE live testing apparatus for local discharge is analyzed than pulse signals and demarcation signal
Energy.
By above-mentioned steps, it is possible to achieve reached and AE live testing apparatus for local discharge is verified in real time at the scene
Purpose, and then solve correlation technique the technical problem of field-checking cannot be carried out to AE live testing apparatus for local discharge,
It is achieved thereby that improving the technique effect of the accuracy that AE live testing apparatus for local discharge is to Partial Discharge Detection.
As a kind of alternatively embodiment, the generator transmitting of control sonac acquisition pulse demarcation signal it
Before, method of calibration also includes：Control impulse generator connection coupling device；Sonac is attached to check platform precalculated position
Place, wherein, coupling device is connected by coaxial RF cables with platform is checked.
According to embodiments of the present invention, a kind of calibration equipment embodiment of AE live testing apparatus for local discharge is additionally provided,
It should be noted that the calibration equipment of the AE live testing apparatus for local discharge can be used for performing the AE in the embodiment of the present invention
The method of calibration of live testing apparatus for local discharge, the verification side of the AE live testing apparatus for local discharge in the embodiment of the present invention
Method can be performed in the calibration equipment of the AE live testing apparatus for local discharge.
Fig. 3 is the schematic diagram of the calibration equipment of AE live testing apparatus for local discharge according to embodiments of the present invention, such as Fig. 3
Shown, the device can include：First control unit 22, for the demarcation for controlling sonac acquisition pulse generator to launch
Signal；Acquiring unit 24, for obtaining the impulse response signal that ultrasound measuring instrument Host Detection is arrived；Analytic unit 26, for leading to
Cross the test performance that AE live testing apparatus for local discharge is analyzed than pulse signals and demarcation signal.
It should be noted that the first control unit 22 in the embodiment can be used for performing the step in the embodiment of the present application
Rapid S102, the acquiring unit 24 in the embodiment can be used for performing the step S104 in the embodiment of the present application, in the embodiment
Analytic unit 26 can be used for perform the embodiment of the present application in step S106.Above-mentioned module is realized with corresponding step
Example is identical with application scenarios, but is not limited to above-described embodiment disclosure of that.
Alternatively, calibration equipment also includes：Second control unit, in control sonac acquisition pulse generator
Before the demarcation signal of transmitting, control impulse generator connection coupling device；Placement unit, for sonac to be attached into school
Core platform pre-position, wherein, coupling device is connected by coaxial RF cables with platform is checked.
By appealing unit and module, reach AE live testing apparatus for local discharge is verified in real time at the scene
Purpose, and then solve correlation technique the technical problem of field-checking cannot be carried out to AE live testing apparatus for local discharge, from
And realize the technique effect for improving the accuracy that AE live testing apparatus for local discharge is to Partial Discharge Detection.
The embodiments of the present invention are for illustration only, and the quality of embodiment is not represented.
In the above embodiment of the present invention, the description to each embodiment all emphasizes particularly on different fields, and does not have in certain embodiment
The part of detailed description, may refer to the associated description of other embodiment.
In several embodiments provided herein, it should be understood that disclosed technology contents, can be by other
Mode is realized.Wherein, device embodiment described above is only schematical, such as division of described unit, Ke Yiwei
A kind of division of logic function, can there is other dividing mode when actually realizing, such as multiple units or component can combine or
Person is desirably integrated into another system, or some features can be ignored, or does not perform.Another, shown or discussed is mutual
Between coupling or direct-coupling or communication connection can be the INDIRECT COUPLING or communication link of unit or module by some interfaces
Connect, can be electrical or other forms.
The unit that is illustrated as separating component can be or may not be it is physically separate, it is aobvious as unit
The part for showing can be or may not be physical location, you can with positioned at a place, or can also be distributed to multiple
On unit.Some or all of unit therein can be according to the actual needs selected to realize the purpose of this embodiment scheme.
In addition, during each functional unit in each embodiment of the invention can be integrated in a processing unit, it is also possible to
It is that unit is individually physically present, it is also possible to which two or more units are integrated in a unit.Above-mentioned integrated list
Unit can both be realized in the form of hardware, it would however also be possible to employ the form of SFU software functional unit is realized.
If the integrated unit is to realize in the form of SFU software functional unit and as independent production marketing or use
When, can store in a computer read/write memory medium.Based on such understanding, technical scheme is substantially
The part for being contributed to prior art in other words or all or part of the technical scheme can be in the form of software products
Embody, the computer software product is stored in a storage medium, including some instructions are used to so that a computer
Equipment (can be personal computer, server or network equipment etc.) perform each embodiment methods described of the invention whole or
Part steps.And foregoing storage medium includes：USB flash disk, read-only storage (ROM, Read-Only Memory), arbitrary access are deposited
Reservoir (RAM, Random Access Memory), mobile hard disk, magnetic disc or CD etc. are various can be with store program codes
Medium.
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (10)
1. a kind of calibration equipment of AE live testing apparatus for local discharge, it is characterised in that including：
Impulse generator, for launching demarcation signal；
Coupling device, is connected by coaxial RF cables with a check platform, and it is pre- that tested sonac is attached to the check platform
Positioning puts place；And
Ultrasound measuring instrument main frame, for detecting impulse response signal, wherein, the contrast of the pulse signal and the demarcation signal
Result is used to indicate the test performance of the AE live testing apparatus for local discharge.
2. calibration equipment according to claim 1, it is characterised in that the heart yearn of the coupling device respectively with the pulse
Generator and the check platform are connected.
3. calibration equipment according to claim 2, it is characterised in that the check platform includes upper mounting plate and lower platform,
Wherein, the sonac is located between the upper mounting plate and the lower platform.
4. calibration equipment according to claim 3, it is characterised in that the upper mounting plate connects with the heart yearn of the coupling device
Connect, the lower platform is connected with the ultrasound measuring instrument main frame.
5. calibration equipment according to claim 1, it is characterised in that the positive-negative polarity of the impulse generator is convertible,
The rise time of impulse waveform is less than or equal to 1us, and fall time is more than or equal to 100us, and output waveform voltage peak is in 10mV
To between 5V, including 10mV, 20mV, 50mV, 1V, 2V, 3V, 4V, 5V gear, the stability of output amplitude is higher than 95%.
6. calibration equipment according to claim 1 or 5, it is characterised in that the impulse generator is hand-held.
7. a kind of method of calibration of AE live testing apparatus for local discharge, it is characterised in that including：
The demarcation signal of control sonac acquisition pulse generator transmitting；
Obtain the impulse response signal that ultrasound measuring instrument Host Detection is arrived；
The testability of the AE live testing apparatus for local discharge is analyzed with the demarcation signal by comparing the pulse signal
Energy.
8. method of calibration according to claim 7, it is characterised in that in control sonac acquisition pulse generator hair
Before the demarcation signal penetrated, the method for calibration also includes：
Control the impulse generator connection coupling device；
The sonac is attached to the check platform pre-position, wherein, the coupling device is by coaxial RF electricity
Cable is connected with the check platform.
9. a kind of calibration equipment of AE live testing apparatus for local discharge, it is characterised in that including：
First control unit, for the demarcation signal for controlling sonac acquisition pulse generator to launch；
Acquiring unit, for obtaining the impulse response signal that ultrasound measuring instrument Host Detection is arrived；
Analytic unit, for analyzing the AE shelf depreciations live detection with the demarcation signal by comparing the pulse signal
The test performance of device.
10. calibration equipment according to claim 9, it is characterised in that the calibration equipment also includes：
Second control unit, for before the demarcation signal of control sonac acquisition pulse generator transmitting, controlling institute
State impulse generator connection coupling device；
Placement unit, for the sonac to be attached into the check platform pre-position, wherein, the coupling device
It is connected with the check platform by coaxial RF cables.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611142015.7A CN106842091A (en) | 2016-12-12 | 2016-12-12 | The calibration equipment of AE live testing apparatus for local discharge, method and device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611142015.7A CN106842091A (en) | 2016-12-12 | 2016-12-12 | The calibration equipment of AE live testing apparatus for local discharge, method and device |
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| CN106842091A true CN106842091A (en) | 2017-06-13 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111239560A (en) * | 2020-02-06 | 2020-06-05 | 云南电网有限责任公司电力科学研究院 | Multi-sensor-based partial discharge positioning method |
| CN111308203A (en) * | 2020-04-08 | 2020-06-19 | 国网河北省电力有限公司电力科学研究院 | Power transformer operating voltage phase acquisition method and sensing device |
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Application publication date: 20170613 |