CN205539425U - Monitoring instrument signal calibration equipment is put in contact ultrasonic wave office - Google Patents
Monitoring instrument signal calibration equipment is put in contact ultrasonic wave office Download PDFInfo
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- CN205539425U CN205539425U CN201620213389.2U CN201620213389U CN205539425U CN 205539425 U CN205539425 U CN 205539425U CN 201620213389 U CN201620213389 U CN 201620213389U CN 205539425 U CN205539425 U CN 205539425U
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Abstract
The utility model provides a monitoring instrument signal calibration equipment is put in contact ultrasonic wave office, includes: sine wave signal source, ultrasonic transducer, ultrasonic sensor and metal test platform, the sine wave signal source, for ultrasonic transducer inputs a sine wave signal, ultrasonic transducer places in among the metal test platform and with sine wave signal source electricity is connected, will the electric signals regulating amplitude of sine wave signal source input turns into ultrasonic signal later on, ultrasonic sensor, synchronous monitoring ultrasonic transducer sends ultrasonic signal amplitude and frequency range, metal test platform provides and stabilizes fixed platform and conduct ultrasonic signal's standard conductive medium. The monitoring results that treats result that school ultrasonic wave office put the monitoring instrument and the synchronous monitoring of ultrasonic sensor through the contrast treats school ultrasonic wave office to be put the monitoring instrument and carries out the check -up.
Description
Technical field
This utility model relates to electric and electronic technical field and electrical power distribution electrical domain, particularly relates to a kind of contact ultrasonic office and puts monitoring instrument signal checking device.
Background technology
Shelf depreciation (abbreviation office puts) refers to occur in-between the electrodes but the electric discharge of not penetrating electrode, and it is owing to apparatus insulated inside exists the defect caused in light current or production process, repeats the phenomenon puncturing and extinguishing under high electric field intensity effect.It shows as insulating in the puncturing of interior gas, little scope solid or the partial breakdown of liquid medium or the edge of metal surface and corners potential field is concentrated by force and caused partial breakdown electric discharge etc..The energy of this electric discharge is the least, so its existence in short-term has no effect on the dielectric strength of electrical equipment.If but insulation of electrical installation constantly occurs shelf depreciation under working voltage, these faint electric discharges can make the dielectric properties of insulation gradually degrade and make local defect to expand by producing accumulative effect, finally results in whole insulation breakdown.Can office put monitoring instrument and correctly detect defect, plays decisive role to can accurately weigh Electric Power Equipment Insulation performance.Therefore, for contact ultrasonic office put monitoring instrument signal checking device tool be of great significance.
Ultrasound examination most apparent advantage is that do not have strong electromagnetic interference, but testing result may be interfered by the free particles in power equipment；Simultaneously as different power equipment built-in electrical insulation structures are complicated, ultrasonic attenuation is serious, and the electric discharge occurred at insulating inner the most likely cannot be detected.
Utility model content
Based on this, it is necessary to provide a kind of contact ultrasonic office that contact ultrasonic partial discharge monitoring instrument can carry out signal checking to put monitoring instrument signal checking device.
Monitoring instrument signal checking device is put in a kind of contact ultrasonic office, including: sine wave source, ultrasonic transducer, ultrasonic sensor and metallographictest platform；
Sine wave source, for inputting a sine wave signal for described ultrasonic transducer；
Described ultrasonic transducer, is built in described metallographictest platform and electrically connects with described sine wave source, and the signal of telecommunication for being inputted by described sine wave source is converted into ultrasonic signal after adjusting amplitude；
Ultrasonic sensor, the described ultrasonic signal amplitude sent for ultrasonic transducer described in synchronous monitoring and frequency range；
Metallographictest platform, is used for providing stable fixed platform, and as the standard transmitting medium of described ultrasonic signal.
Wherein in an embodiment, described ultrasonic transducer is built in described metallographictest mesa base and fits with described metallographictest platform.
Wherein in an embodiment, described metallographictest platform includes that steel test block, described steel test block are A36 hot-rolled steel.
Wherein in an embodiment, described sine wave source, for inputting amplitude, a described sine wave signal for frequency-adjustable for described ultrasonic transducer, described sine wave signal amplitude range is 0～10V, and frequency range is 0～10MHz.
Wherein in an embodiment, the amplitude range of the ultrasonic signal that described ultrasonic transducer converts is 0～100dB μ V.
Wherein in an embodiment, the frequency range of the ultrasonic signal that described ultrasonic transducer converts is 10kHz～300kHz.
Wherein in an embodiment, also include oscillograph, connect described ultrasonic sensor, for showing the signal waveform that described ultrasonic sensor monitors.
Wherein in an embodiment, when treating school ultrasonic partial discharge monitoring instrument and carrying out signal checking, the described ultrasonic sensor treating school ultrasonic partial discharge monitoring instrument and described ultrasonic sensor are steadily placed in described metallographictest platform surface.
Wherein in an embodiment, described metallographictest platform includes shell and the steel test block being contained in described shell, and described shell is provided with joint, is connected with described sine wave source by described joint.
Wherein in an embodiment, described ultrasonic transducer is arranged between lower surface and the described shell of described steel test block.
Monitoring instrument signal checking device is put in above-mentioned contact ultrasonic office, and sine wave source is that described ultrasonic transducer inputs a sine wave signal；The signal of telecommunication that described sine wave source is inputted by the ultrasonic transducer being built in described metallographictest platform is converted into ultrasonic signal after suitably adjusting amplitude by power amplifier；Described ultrasonic signal amplitude that ultrasonic transducer described in ultrasonic sensor synchronous monitoring sends and frequency range；Metallographictest platform provides stablizes fixed platform, and as the standard transmitting medium of ultrasonic signal, it is ensured that the concordance of described ultrasonic signal attenuation process.Treat that school ultrasonic partial discharge monitoring instrument gathers the monitoring result of described ultrasonic signal amplitude that the result of ultrasonic signal amplitude and frequency range sends with ultrasonic transducer described in ultrasonic sensor synchronous monitoring and frequency range by sensor from metallographictest platform and treats school ultrasonic partial discharge monitoring instrument and verify by contrast.
Accompanying drawing explanation
Fig. 1 is the system framework figure that monitoring instrument signal checking device is put in the contact ultrasonic office of a kind of embodiment；
Fig. 2 is the work wiring diagram that monitoring instrument signal checking device is put in Fig. 1 contact ultrasonic office.
Detailed description of the invention
For the ease of understanding this utility model, below with reference to relevant drawings, this utility model is described more fully.Accompanying drawing gives preferred embodiment of the present utility model.But, this utility model can realize in many different forms, however it is not limited to embodiment described herein.On the contrary, providing the purpose of these embodiments is to make the understanding to disclosure of the present utility model more thorough comprehensively.
Unless otherwise defined, all of technology used herein and scientific terminology are identical with belonging to the implication that those skilled in the art of the present utility model are generally understood that.It is intended merely to describe the purpose of specific embodiment at term used in the description of the present utility model herein, it is not intended that in limiting this utility model.Term as used herein " or/and " include the arbitrary and all of combination of one or more relevant Listed Items.
As it is shown in figure 1, monitoring instrument signal checking device 100 is put in the contact ultrasonic office for a kind of embodiment of this utility model, including: sine wave source 110, ultrasonic transducer 130, ultrasonic sensor 150 and metallographictest platform 170；
Sine wave source 110, for inputting a sine wave signal for described ultrasonic transducer 130；
Described ultrasonic transducer 130, is built in described metallographictest platform and electrically connects with described sine wave source, and the signal of telecommunication for being inputted by described sine wave source 110 is converted into ultrasonic signal after adjusting amplitude；Specifically, the signal of telecommunication that described sine wave source 110 is inputted by ultrasonic transducer 130 is converted into ultrasonic signal after adjusting amplitude by power amplifier.
Ultrasonic sensor 150, the described ultrasonic signal amplitude sent for ultrasonic transducer described in synchronous monitoring 130 and frequency range, for treating that school ultrasonic partial discharge monitoring instrument 200 provides reference frame；
Metallographictest platform 170, is used for providing stable fixed platform, and as the standard transmitting medium of ultrasonic signal, it is ensured that the concordance of described ultrasonic signal attenuation process.
Monitoring instrument signal checking device 100 is put in above-mentioned contact ultrasonic office, and sine wave source 110 inputs a sine wave signal for described ultrasonic transducer 130；The signal of telecommunication that described sine wave source 110 is inputted by the ultrasonic transducer 130 being built in described metallographictest platform is converted into ultrasonic signal after suitably adjusting amplitude by power amplifier；Described ultrasonic signal amplitude that ultrasonic transducer 130 described in ultrasonic sensor 150 synchronous monitoring sends and frequency range；Metallographictest platform 170 provides stablizes fixed platform, and as the standard transmitting medium of ultrasonic signal, it is ensured that the concordance of described ultrasonic signal attenuation process.Treat that school ultrasonic partial discharge monitoring instrument 200 gathers the monitoring result of described ultrasonic signal amplitude that the result of ultrasonic signal amplitude and frequency range sends with ultrasonic transducer 130 described in ultrasonic sensor 150 synchronous monitoring and frequency range by sensor from metal experiment porch and treats school ultrasonic partial discharge monitoring instrument 200 and verify by contrast.
Wherein in an embodiment, described ultrasonic transducer 130 is built in described metallographictest mesa base.So, it is ensured that the concordance of described ultrasonic signal attenuation process.Described sine wave source 110 electrically connects with described ultrasonic transducer 130.
Wherein in an embodiment, described metallographictest platform 170 includes steel test block 171, and described steel test block 171 is A36 hot-rolled steel.So, the concordance of described ultrasonic signal attenuation process it is further ensured that.
Wherein in an embodiment, described sine wave source 110, for inputting the described sine wave signal of an amplitude, frequency-adjustable for described ultrasonic transducer 130, described sine wave signal amplitude range is 0～10V (volt), and frequency range is 0～10MHz (megahertz).
Further, the amplitude range of the ultrasonic signal that described ultrasonic transducer 130 converts is 0～100dB μ V (decibel microvolts is special).
Further, the frequency range of the ultrasonic signal that described ultrasonic transducer 130 converts is 10kHz～300kHz (KHz).So, it is ensured that ultrasonic transducer 130 possesses the continuously adjustable feature of wideband.
Wherein in an embodiment, also include oscillograph 500, connect described ultrasonic sensor 150, for showing the signal waveform that described ultrasonic sensor 150 monitors.The result of the ultrasonic signal collected by the ultrasonic sensor 150 of oscillographic display is treated school ultrasonic partial discharge monitoring instrument 200 with the Comparative result treating school ultrasonic partial discharge monitoring instrument 200 and is verified.
Wherein in an embodiment, when treating school ultrasonic partial discharge monitoring instrument 200 and carrying out signal checking, the described sensor 210 treating school ultrasonic partial discharge monitoring instrument 200 and described ultrasonic sensor 150 are steadily placed in described metallographictest platform 170 surface.
Wherein in an embodiment, described metallographictest platform includes shell 173 and is contained in the steel test block 171 in described shell 173, and described shell is provided with joint 175, is connected with described sine wave source 110 by described joint.
Wherein in an embodiment, described ultrasonic transducer 130 is arranged between lower surface and the described shell 173 of described steel test block 171.
Above example only have expressed several embodiments of the present utility model, and it describes more concrete and detailed, but therefore can not be interpreted as the restriction to this utility model the scope of the claims.It should be pointed out that, for the person of ordinary skill of the art, without departing from the concept of the premise utility, it is also possible to make multiple deformation and improvement, these broadly fall into protection domain of the present utility model.Therefore, the protection domain of this utility model patent should be as the criterion with claims.
Claims (10)
1. monitoring instrument signal checking device is put in a contact ultrasonic office, it is characterised in that including: sine wave source, ultrasonic transducer, ultrasonic sensor and metallographictest platform；
Sine wave source, for inputting a sine wave signal for described ultrasonic transducer；
Described ultrasonic transducer, is built in described metallographictest platform and electrically connects with described sine wave source, and the signal of telecommunication for being inputted by described sine wave source is converted into ultrasonic signal after adjusting amplitude；
Ultrasonic sensor, the described ultrasonic signal amplitude sent for ultrasonic transducer described in synchronous monitoring and frequency range；
Metallographictest platform, is used for providing stable fixed platform, is connected with described sine wave source, and as the standard transmitting medium of described ultrasonic signal.
Monitoring instrument signal checking device is put in contact ultrasonic office the most according to claim 1, it is characterised in that described ultrasonic transducer is built in described metallographictest mesa base and fits with described metallographictest platform.
Monitoring instrument signal checking device is put in contact ultrasonic office the most according to claim 1, it is characterised in that described metallographictest platform includes that steel test block, described steel test block are A36 hot-rolled steel.
Monitoring instrument signal checking device is put in contact ultrasonic office the most according to claim 1, it is characterized in that, described sine wave source, for inputting amplitude, a described sine wave signal for frequency-adjustable for described ultrasonic transducer, described sine wave signal amplitude range is 0～10V, and frequency range is 0～10MHz.
Monitoring instrument signal checking device is put in contact ultrasonic office the most according to claim 4, it is characterised in that the amplitude range of the ultrasonic signal that described ultrasonic transducer converts is 0～100dB μ V.
Monitoring instrument signal checking device is put in contact ultrasonic office the most according to claim 4, it is characterised in that the frequency range of the ultrasonic signal that described ultrasonic transducer converts is 10kHz～3005Hz.
Monitoring instrument signal checking device is put in contact ultrasonic office the most according to claim 1, it is characterised in that also include oscillograph, connects described ultrasonic sensor, for showing the signal waveform that described ultrasonic sensor monitors.
Monitoring instrument signal checking device is put in contact ultrasonic office the most according to claim 1, it is characterized in that, when treating school ultrasonic partial discharge monitoring instrument and carrying out signal checking, the described ultrasonic sensor treating school ultrasonic partial discharge monitoring instrument and described ultrasonic sensor are steadily placed in described metallographictest platform surface.
Monitoring instrument signal checking device is put in contact ultrasonic office the most according to claim 1, it is characterized in that, described metallographictest platform includes shell and the steel test block being contained in described shell, and described shell is provided with joint, is connected with described sine wave source by described joint.
Monitoring instrument signal checking device is put in contact ultrasonic office the most according to claim 9, it is characterised in that described ultrasonic transducer is arranged between lower surface and the described shell of described steel test block.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620213389.2U CN205539425U (en) | 2016-03-17 | 2016-03-17 | Monitoring instrument signal calibration equipment is put in contact ultrasonic wave office |
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| CN201620213389.2U CN205539425U (en) | 2016-03-17 | 2016-03-17 | Monitoring instrument signal calibration equipment is put in contact ultrasonic wave office |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109406958A (en) * | 2018-09-12 | 2019-03-01 | 昆明理工大学 | A kind of assessment device and assessment method of the sensitivity of ultrasonic partial discharge instrument |
| CN109406959A (en) * | 2018-09-12 | 2019-03-01 | 昆明理工大学 | A kind of assessment device and assessment method of ultrasonic partial discharge instrument frequency characteristic |
-
2016
- 2016-03-17 CN CN201620213389.2U patent/CN205539425U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109406958A (en) * | 2018-09-12 | 2019-03-01 | 昆明理工大学 | A kind of assessment device and assessment method of the sensitivity of ultrasonic partial discharge instrument |
| CN109406959A (en) * | 2018-09-12 | 2019-03-01 | 昆明理工大学 | A kind of assessment device and assessment method of ultrasonic partial discharge instrument frequency characteristic |
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| TR01 | Transfer of patent right |
Effective date of registration: 20200930 Address after: 510620 Tianhe District, Guangzhou, Tianhe South Road, No. two, No. 2, No. Patentee after: Guangzhou Power Supply Bureau of Guangdong Power Grid Co.,Ltd. Address before: 510620 Tianhe District, Guangzhou, Tianhe South Road, No. two, No. 2, No. Patentee before: GUANGZHOU POWER SUPPLY Co.,Ltd. |