CN205353019U - Acoustic emission sensor - Google Patents
Acoustic emission sensor Download PDFInfo
- Publication number
- CN205353019U CN205353019U CN201620099744.8U CN201620099744U CN205353019U CN 205353019 U CN205353019 U CN 205353019U CN 201620099744 U CN201620099744 U CN 201620099744U CN 205353019 U CN205353019 U CN 205353019U
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- stainless steel
- acoustic emission
- emission sensor
- strong magnets
- piezoelectric element
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- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Abstract
The utility model discloses an acoustic emission sensor, including stainless steel shell, piezoelectric element, wire, polytetrafluoroethylene gasket, ceramic protective layer, strong magnet, stainless steel outer loop and external tool interface system, piezoelectric element arranges in inside the stainless steel shell to through the external tool interface system of wire intercommunication, external tool interface system inlays on the stainless steel shell, through the polytetrafluoroethylene gasket separation between stainless steel shell and strong magnet and stainless steel outer loop, strong magnet is connected with the laminating of stainless steel outer loop, strong magnet and stainless steel outer loop agree with with ceramic protective layer to be connected. The utility model discloses in, through strong magnet's setting, to having ferromagnetic material surface, realized magnetism absorption, avoided extra increase fixing device, reduced acoustic emission sensor's burden.
Description
Technical field
This utility model relates to electric power project engineering field, particularly relates to a kind of acoustic emission sensor.
Background technology
Acoustic emission is a kind of common physical phenomenon, and most of materials all can occur by acoustic emission when plastic deformation and fracture.Acoustic emission sensor is as the reception device of acoustic emission signal, and effect is generally divided into contact and contactless two classes between measured object, when the signal that material internal Stress Release produces is very faint, typically require and sensor is close to measured object surface to receive signal, and using painting couplant to fill the slight void between contact surface at interface so that signal can better be received.
The fixing means of sensor mainly includes being mechanically fixed, be adhesively fixed and magnetic suck is fixed, wherein fixing being primarily directed to of magnetic suck has ferromagnetic material surface, it is that sensor is fixed on its surface by the outside another magnetic fixture of tool that introduces under normal circumstances, but the volume of this fixture is generally all be several times as much as sensor, need additionally to carry when test, add the burden of instrument and equipment.
Utility model content
This utility model provides a kind of acoustic emission sensor, to realize for the magnetic suck with ferromagnetic material surface, it is to avoid the fixing device of extra increase, reduces the burden of acoustic emission sensor.
In order to achieve the above object, this utility model provides a kind of acoustic emission sensor, including stainless steel casing, piezoelectric element, wire, polytetrafluoroethylene gasket, ceramic protective layer, strong magnets, rustless steel outer shroud and external equipment interface,
Described piezoelectric element is placed in inside described stainless steel casing, and connects described external equipment interface by described wire, and described external equipment interface is embedded on described stainless steel casing；
Described stainless steel casing is intercepted by described polytetrafluoroethylene gasket with the outer interannular of described strong magnets and rustless steel；Described strong magnets and described rustless steel outer shroud are fitted and connected；
Described strong magnets and rustless steel outer shroud are connected with described ceramic protective layer.
Further, described piezoelectric element is placed on described ceramic protective layer.
Further, described stainless steel casing and described polytetrafluoroethylene gasket glue downlink connection；Described rustless steel outer shroud and described polytetrafluoroethylene gasket glue downlink connection.
Further, also including packed layer, the solidification of described packed layer is filled between described stainless steel casing and described piezoelectric element.
Further, it is fitted and connected with described packed layer inside described strong magnets.
Further, described strong magnets fits in inside described rustless steel outer shroud.
Further, described external equipment interface is embedded on described stainless steel casing sidewall.
Compared with prior art, this utility model at least has the advantage that
By the setting of strong magnets, for having ferromagnetic material surface, it is achieved that magnetic suck, it is to avoid the fixing device of extra increase, reduce the burden of acoustic emission sensor.
Accompanying drawing explanation
Fig. 1 is the structural representation of acoustic emission sensor provided by the utility model.
Accompanying drawing labelling
1 stainless steel casing
2 piezoelectric elements
3 wires
4 polytetrafluoroethylene gaskets
5 strong magnets
6 rustless steel outer shrouds
7 ceramic protective layers
8 external equipment interfaces
9 packed layers
Detailed description of the invention
The utility model proposes a kind of acoustic emission sensor; including stainless steel casing, piezoelectric element, wire, polytetrafluoroethylene gasket, ceramic protective layer, packed layer, the rustless steel outer shroud of built-in strong magnets and external equipment interface; below in conjunction with accompanying drawing, this utility model detailed description of the invention is described in detail.
As shown in Figure 1, in this acoustic emission sensor, piezoelectric element is placed in inside stainless steel casing, and by wire connection external equipment interface, this external equipment interface is embedded on stainless steel casing, and the other end of this external equipment interface is to connect the follow up device such as preamplifier.Wherein, this external equipment interface is embedded on stainless steel casing sidewall, and this stainless steel casing is the integrated setting of shielding external interference.
Stainless steel casing is intercepted by polytetrafluoroethylene gasket with the outer interannular of strong magnets and rustless steel, and wherein, this polytetrafluoroethylene gasket has insulation function；Further, strong magnets and described rustless steel outer shroud are fitted and connected；Further, stainless steel casing is connected surely with polytetrafluoroethylene gasket glue fixed, same, and strong magnets and rustless steel outer shroud are connected surely with being also adopted by glue fixed between polytetrafluoroethylene gasket；Further, by arranging strong magnets at the internal layer of rustless steel outer ring member, it is possible to make acoustic emission sensor be arranged in the determinand surface of ferrimagnet easily, thus saving extra fixing device, conveniently winning and carrying.Wherein, the existence of polytetrafluoroethylene gasket makes between bottom and stainless steel casing in state of insulation, it is prevented that the electromagnetic signal interference to acoustic emission signal.
Further, packed layer solidification is filled between stainless steel casing and piezoelectric element, decreases this acoustic emission sensor own resonance while making piezoelectric element fixing；Owing to the outside of strong magnets is stainless steel ring, inner side is the packed layer solidified so that even if this strong magnets is subject to strong impaction and causes monoblock Magnet cracking failure, strong magnetic force still can be provided not affect use.Wherein, it is fitted and connected with described packed layer inside strong magnets.
Strong magnets and rustless steel outer shroud are connected with ceramic protective layer, and piezoelectric element is placed on this ceramic protective layer；By the setting of ceramic protective layer so that it directly contacts with determinand surface, it is to avoid piezoelectric element exposes, thus piezoelectric element is served protective effect.
In this utility model; by strong magnets is incorporated into inside acoustic emission sensor; make it possible to directly adsorb in ferrimagnet surface by magneticaction; thus eliminating extra fixture; and strong magnets is wrapped in inside so as to while providing powerful magnetic suck effect; again it there is certain protective effect; cause that Magnet self ruptures even if making to collide; it is still fixed on internal offer magneticaction; and do not affect use; avoid and this acoustic emission sensor is additionally increased fixing device, reduce the burden of this acoustic emission sensor.
Wherein, the modules of this utility model device can be integrated in one, it is also possible to separates and disposes.Above-mentioned module can merge into a module, it is also possible to is further split into multiple submodule.
It will be appreciated by those skilled in the art that accompanying drawing is the schematic diagram of a preferred embodiment, module or flow process in accompanying drawing are not necessarily implemented necessary to this utility model.
It will be appreciated by those skilled in the art that the module in the device in embodiment can describe according to embodiment to carry out being distributed in the device of embodiment, it is also possible to carry out respective change and be disposed other than in one or more devices of the present embodiment.The module of above-described embodiment can merge into a module, it is also possible to is further split into multiple submodule.
Above-mentioned this utility model sequence number, just to describing, does not represent the quality of embodiment.
Disclosed above it is only several specific embodiment of the present utility model, but, this utility model is not limited to this, and the changes that any person skilled in the art can think of all should fall into protection domain of the present utility model.
Claims (7)
1. an acoustic emission sensor, it is characterised in that include stainless steel casing, piezoelectric element, wire, polytetrafluoroethylene gasket, ceramic protective layer, strong magnets, rustless steel outer shroud and external equipment interface,
Described piezoelectric element is placed in inside described stainless steel casing, and connects described external equipment interface by described wire, and described external equipment interface is embedded on described stainless steel casing；
Described stainless steel casing is intercepted by described polytetrafluoroethylene gasket with the outer interannular of described strong magnets and rustless steel；Described strong magnets and described rustless steel outer shroud are fitted and connected；
Described strong magnets and rustless steel outer shroud are connected with described ceramic protective layer.
2. acoustic emission sensor as claimed in claim 1, it is characterised in that described piezoelectric element is placed on described ceramic protective layer.
3. acoustic emission sensor as claimed in claim 1, it is characterised in that described stainless steel casing and described polytetrafluoroethylene gasket glue downlink connection；Described rustless steel outer shroud and described polytetrafluoroethylene gasket glue downlink connection.
4. acoustic emission sensor as claimed in claim 1, it is characterised in that also include packed layer, the solidification of described packed layer is filled between described stainless steel casing and described piezoelectric element.
5. acoustic emission sensor as claimed in claim 4, it is characterised in that be fitted and connected with described packed layer inside described strong magnets.
6. acoustic emission sensor as claimed in claim 1, it is characterised in that described strong magnets fits in inside described rustless steel outer shroud.
7. acoustic emission sensor as claimed in claim 1, it is characterised in that described external equipment interface is embedded on described stainless steel casing sidewall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620099744.8U CN205353019U (en) | 2016-02-01 | 2016-02-01 | Acoustic emission sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620099744.8U CN205353019U (en) | 2016-02-01 | 2016-02-01 | Acoustic emission sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205353019U true CN205353019U (en) | 2016-06-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620099744.8U Active CN205353019U (en) | 2016-02-01 | 2016-02-01 | Acoustic emission sensor |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106287240A (en) * | 2016-09-05 | 2017-01-04 | 中国石油大学(华东) | A kind of pipeline leakage testing device based on acoustic emission and single-sensor localization method |
| CN107843651A (en) * | 2017-11-28 | 2018-03-27 | 中铁大桥科学研究院有限公司 | A kind of ultrasonic guided wave detecting method and system of the damage of bridge cable steel wire |
| CN107976485A (en) * | 2016-10-25 | 2018-05-01 | 费希尔控制产品国际有限公司 | acoustic emission sensor with integrated acoustic generator |
| CN108044457A (en) * | 2017-12-12 | 2018-05-18 | 嘉泰数控科技股份公司 | The cryogenic processor and method of a kind of zirconia ceramics |
| CN108088909A (en) * | 2017-12-11 | 2018-05-29 | 江西理工大学 | A kind of highly integrated acoustic emission in rock body sensor of high sensitivity |
| CN108981896A (en) * | 2018-07-12 | 2018-12-11 | 清诚声发射研究（广州）有限公司 | A kind of acoustic emission sensor |
| CN109668055A (en) * | 2018-11-16 | 2019-04-23 | 江苏微优软件科技有限公司 | A kind of remote online valve leaks monitoring device and its working method |
-
2016
- 2016-02-01 CN CN201620099744.8U patent/CN205353019U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106287240A (en) * | 2016-09-05 | 2017-01-04 | 中国石油大学(华东) | A kind of pipeline leakage testing device based on acoustic emission and single-sensor localization method |
| CN107976485A (en) * | 2016-10-25 | 2018-05-01 | 费希尔控制产品国际有限公司 | acoustic emission sensor with integrated acoustic generator |
| CN107843651A (en) * | 2017-11-28 | 2018-03-27 | 中铁大桥科学研究院有限公司 | A kind of ultrasonic guided wave detecting method and system of the damage of bridge cable steel wire |
| CN108088909A (en) * | 2017-12-11 | 2018-05-29 | 江西理工大学 | A kind of highly integrated acoustic emission in rock body sensor of high sensitivity |
| CN108044457A (en) * | 2017-12-12 | 2018-05-18 | 嘉泰数控科技股份公司 | The cryogenic processor and method of a kind of zirconia ceramics |
| CN108981896A (en) * | 2018-07-12 | 2018-12-11 | 清诚声发射研究（广州）有限公司 | A kind of acoustic emission sensor |
| CN109668055A (en) * | 2018-11-16 | 2019-04-23 | 江苏微优软件科技有限公司 | A kind of remote online valve leaks monitoring device and its working method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20161028 Address after: 2 No. 605606, room 150, Cao Fang Fang, South China East Road, Guangzhou, Guangdong, Haizhuqu District, 510220 Patentee after: Guangzhou soundwel Detection Technology Co. Ltd. Address before: 100000 Beijing double Camp Road, building 117, room 4, room 11, No. Patentee before: Soundwel Technology Co., Ltd. |
|
| CP03 | Change of name, title or address |
Address after: Ke Xue Cheng Guang Bao Lu, Guangzhou high tech Industrial Development Zone of Guangdong province 510663 City 232 Building No. 1 201 Patentee after: Guangzhou sonic Nondestructive Testing Instrument Co., Ltd. Address before: 510220 Haizhuqu District, Guangdong, South China East Road, Fang Fang Wai, No. 150, No. 605606, room 2 Patentee before: Guangzhou soundwel Detection Technology Co. Ltd. |
|
| CP03 | Change of name, title or address |