CN208270605U - A kind of ultrasonic sensor fixed pedestal for test cable shelf depreciation - Google Patents
A kind of ultrasonic sensor fixed pedestal for test cable shelf depreciation Download PDFInfo
- Publication number
- CN208270605U CN208270605U CN201820027823.7U CN201820027823U CN208270605U CN 208270605 U CN208270605 U CN 208270605U CN 201820027823 U CN201820027823 U CN 201820027823U CN 208270605 U CN208270605 U CN 208270605U
- Authority
- CN
- China
- Prior art keywords
- sensor
- pedestal
- cable
- mounting groove
- ultrasonic sensor
- 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.)
- Expired - Fee Related
Links
Landscapes
- Transducers For Ultrasonic Waves (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
- Length Measuring Devices Characterised By Use Of Acoustic Means (AREA)
Abstract
A kind of ultrasonic sensor fixed pedestal for test cable shelf depreciation, it can be used in electrical engineering field carrying out supercritical ultrasonics technology detection to cable local discharge, pedestal is made of eccentric annular structural body, sensor mounting groove, feeder line rectangular channel, otic placode and bolt hole, and ultrasonic wave can be made to greatly reduce the loss of signal during propagating to sensor.
Description
Technical field
The utility model relates in electrical engineering to the supercritical ultrasonics technology detection field of cable local discharge, it is specifically a kind of super
Sonic sensor fixed pedestal.
Background technique
In electric system, shelf depreciation may occur in the process of running for high pressure and EHV XLPE power cable, and local
Electric discharge has become the main reason for cable insulation deterioration, therefore the local discharging level for measuring cable is to ensure that cable is reliably transported
Capable important measures.When shelf depreciation occurring inside cable, ultrasonic wave will be launched along with the loss of energy, ultrasonic wave passes
Coupled interface is cast to, the ultrasonic sensor being attached on coupled interface receives, and this completes shelf depreciation ultrasonic wave letters
Number receive process.
The decaying of ultrasonic wave is very serious in gas medium, and ultrasonic wave has preferably in liquid and metal material
Propagation characteristic decays slower, so the air excluded between sensor and cable is extremely important.Since the side of cable is arc
Face, ultrasonic sensor surface is plane, so directly ultrasonic sensor can not be attached on cable insulation super to receive
Acoustic signals.
Utility model content
The purpose of this utility model be presently, there are aiming at the problem that, a kind of ultrasonic sensor fixed pedestal, energy are provided
It is enough reliable and stablely to be fixed on ultrasonic sensor on the high pressure of operation and the oversheath of extra-high-tension cable.
The purpose of this utility model is achieved through the following technical solutions:
The utility model provides a kind of pedestal of ultrasonic sensor, and the main body of pedestal is eccentric annular structural body, in
Circular diameter is slightly larger than the outer diameter of cable under test, in order to pierce into cable among pedestal.The outer circle center of pedestal offers receiving circle
The sensor mounting groove of shape ultrasonic sensor, the radius of sensor mounting groove are slightly larger than the radius of sensor.Sensor installation
Slot also plays the role of protecting sensor.In view of sensor will by feeder line by the ultrasonic signal received transfer out come,
Also the rectangular channel of holding feeder is opened up on sensor mounting groove.
For the ease of pedestal to be secured firmly on cable, two ears are symmetrical arranged in the sensor base opening
Plate, and the identical circular bolt holes of two radiuses are made a call to along same axis on two otic placodes.One bolt is pierced into two when use
A circular hole, then fastened with nut in the other side, so that base inner surface is tightly bonded cable insulation outer surface.Purpose is row herein
Except the air between cable and pedestal, reduce the decaying of ultrasonic wave.
Since propagation characteristic of the ultrasonic wave in metal material is preferable, signal decaying is less, so the material of the pedestal can
To use the metal materials such as copper, iron, titanium alloy.
In order to be further reduced the decaying of ultrasonic signal in the air, in installation pedestal should pedestal internal circular surfaces,
Sensor mounting groove inner surface daubing coupling agent, such as glycerine, sodium metasilicate, avoid ultrasonic signal in cable and pedestal, base
Decay in remaining air between seat and sensor.
The utility model has the following technical effect that it can be seen from above-mentioned the technical solution of the utility model
The utility model structure is simple, easy to operate, and ultrasonic sensor can be securely fixed on cable.Pedestal
Material is metal material, so that decaying of the ultrasonic wave in conductive process greatly reduces.By the fastening of bolt, base is enabled to
Seat is tightly bonded cable surface, reduces the air gap between cable and pedestal.Sensor mounting groove and feeder line square are opened up on the base
Shape slot, is not only convenient for the installation of sensor, but also can play the role of protecting sensor.
Detailed description of the invention
Fig. 1 is the schematic perspective view of the utility model；
Fig. 2 is the three-view diagram of the utility model.
Meaning representated by each label in Fig. 1: 1 --- pedestal inner circle, 2 --- pedestal outer circle, 3 --- sensor installation
Slot, 4 --- feeder line rectangular channel, 5 --- otic placode, 6 --- bolt hole.
Specific embodiment
In order to make those skilled in the art more fully understand the technical solution of the application, below with reference to attached drawing to this reality
It is described in further details with novel.
The utility model provides a kind of ultrasonic sensor fixed pedestal, and structure is as shown in Figure 1 and Figure 2, the main body of pedestal
For eccentric annular structural body, inner circle (1) diameter is slightly larger than the outer diameter of cable under test, in order to pierce into cable among pedestal.
Pedestal outer circle (2) center offers the sensor mounting groove (3) for accommodating round ultrasonic sensor, the radius of sensor mounting groove
Slightly larger than the radius of sensor.Sensor mounting groove also plays the role of protecting sensor.In view of sensor will pass through feeder line
The ultrasonic signal received is transferred out to come, the rectangular channel (4) of holding feeder is also opened up on sensor mounting groove.
For the ease of pedestal to be secured firmly on cable, two otic placodes are symmetrical arranged in the sensor base opening
(5), the identical circular bolt holes (6) of two radiuses and on two otic placodes are made a call to along same axis.One bolt is worn when use
It is fastened into two circular holes, then with nut in the other side, base inner surface is made tightly to be bonded cable insulation outer surface.Purpose herein
It is the air excluded between cable and pedestal, reduces the decaying of ultrasonic wave.
Since propagation characteristic of the ultrasonic wave in metal material is preferable, signal decaying is less, so the material of the pedestal can
To use the metal materials such as copper, iron, titanium alloy.
In order to be further reduced the decaying of ultrasonic signal in the air, in installation pedestal should pedestal internal circular surfaces,
Sensor mounting groove inner surface daubing coupling agent, such as glycerine, sodium metasilicate, avoid ultrasonic signal in cable and pedestal, base
Decay in remaining air between seat and sensor.
Claims (2)
1. a kind of ultrasonic sensor fixed pedestal for test cable shelf depreciation, which is characterized in that the sensor is solid
The main body of pedestal is determined for eccentric annular structural body, and inner circle (1) diameter is slightly larger than the outer diameter of cable under test, in order to wear cable
Into among pedestal, pedestal outer circle (2) center offers the sensor mounting groove (3) for accommodating round ultrasonic sensor, sensor
The radius of mounting groove is slightly larger than the radius of sensor, and the rectangular channel (4) of holding feeder is also opened up on sensor mounting groove.
2. a kind of ultrasonic sensor fixed pedestal for test cable shelf depreciation according to claim 1, special
Sign is that the sensor base opening is symmetrical arranged two otic placodes (5), and makes a call to two along same axis on two otic placodes
One bolt is pierced into two circular holes when use, then is fastened with nut in the other side by the identical circular bolt holes of radius (6), is made
Base inner surface is tightly bonded cable insulation outer surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820027823.7U CN208270605U (en) | 2018-01-09 | 2018-01-09 | A kind of ultrasonic sensor fixed pedestal for test cable shelf depreciation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820027823.7U CN208270605U (en) | 2018-01-09 | 2018-01-09 | A kind of ultrasonic sensor fixed pedestal for test cable shelf depreciation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208270605U true CN208270605U (en) | 2018-12-21 |
Family
ID=64672591
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820027823.7U Expired - Fee Related CN208270605U (en) | 2018-01-09 | 2018-01-09 | A kind of ultrasonic sensor fixed pedestal for test cable shelf depreciation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208270605U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111830381A (en) * | 2020-08-28 | 2020-10-27 | 重庆大学 | Watchband-adjustable full-laminated cable partial discharge ultrasonic sensor and online monitoring method |
-
2018
- 2018-01-09 CN CN201820027823.7U patent/CN208270605U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111830381A (en) * | 2020-08-28 | 2020-10-27 | 重庆大学 | Watchband-adjustable full-laminated cable partial discharge ultrasonic sensor and online monitoring method |
| CN111830381B (en) * | 2020-08-28 | 2023-08-15 | 重庆大学 | Watchband-adjustable full-attached cable partial discharge ultrasonic sensor and online monitoring method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201107299Y (en) | High performance pipe ultrasound guide wave detection sensor | |
| CN208270605U (en) | A kind of ultrasonic sensor fixed pedestal for test cable shelf depreciation | |
| WO2020207076A1 (en) | Explosion-proof electromagnetic ultrasonic oil and gas pipeline corrosion thinning on-line detection system and method | |
| CN102019273A (en) | Ultrasonic transducer | |
| CN202854282U (en) | Parabolic reflector for supersonic-wave detection method for partial discharge | |
| CN205192612U (en) | Contact partial discharge ultrasonic sensor | |
| CN103197210B (en) | Integrated sensor used for partial discharge detection of switch cabinet | |
| CN205138449U (en) | Implanted pipeline corrodes on -line monitoring electromagnetic acoustic sensor | |
| CN208066700U (en) | A kind of arc ultrasonic transducer for pipeline outer wall installation | |
| CN213715368U (en) | External ultrahigh frequency sensor for detecting partial discharge of power equipment | |
| CN204694382U (en) | Ultrasonic calorimeter | |
| CN201820440U (en) | Energy transducer of fish finder | |
| CN205246154U (en) | Ultrasonic transducer structure | |
| CN211668581U (en) | Ultrasonic sensor for gas flow based on red wine glass type front cover plate | |
| CN210268767U (en) | Novel wireless ultrasonic water meter | |
| CN202533549U (en) | Sonic transducer of detection device for detecting partial discharge of line | |
| CN204631195U (en) | A kind of shelf depreciation ultrasonic assistant pick-up unit | |
| CN201227294Y (en) | Medical ultrasonic transducing device | |
| CN201966121U (en) | Arc plate of partial discharging ultrahigh-frequency electromagnetic signal detection sensor box | |
| CN107843929B (en) | A kind of sound insulating structure in acoustic logging | |
| CN101596945A (en) | A kind of binding head of focused ultrasonic packing band | |
| CN202502209U (en) | UHF information acquisition device | |
| CN202256378U (en) | Hydraulic pipeline monitor | |
| CN108480170A (en) | A kind of arc ultrasonic transducer for pipeline outer wall installation | |
| CN206838454U (en) | Magnetostrictive transducer and the high-power ultralow frequency sound source for underwater emission |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181221 Termination date: 20200109 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |