CN207163623U - A kind of PVDF piezoelectric membranes Impact monitoring sensor - Google Patents
A kind of PVDF piezoelectric membranes Impact monitoring sensor Download PDFInfo
- Publication number
- CN207163623U CN207163623U CN201721198995.2U CN201721198995U CN207163623U CN 207163623 U CN207163623 U CN 207163623U CN 201721198995 U CN201721198995 U CN 201721198995U CN 207163623 U CN207163623 U CN 207163623U
- Authority
- CN
- China
- Prior art keywords
- positive electrode
- electrode layer
- pvdf piezoelectric
- protective layer
- piezoelectric membranes
- 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
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
The utility model discloses a kind of PVDF piezoelectric membranes Impact monitoring sensor, including PVDF piezoelectric membranes, positive electrode layer, positive electrode layer, up-protective layer and lower protective layer；PVDF piezoelectric membrane upper and lower surfaces are covered each by positive electrode layer and positive electrode layer；Welded using double sided pressure and be connected positive wire and cathode conductor with positive electrode layer and positive electrode layer；Covered with insulating barrier on positive electrode layer and positive electrode layer；Lower protective layer surface is provided with groove, and the PVDF piezoelectric membranes that will be covered with positive electrode layer, positive electrode layer and insulating barrier are placed in the groove of lower protective layer；Up-protective layer is bonded together by epoxide-resin glue and lower protective layer, cavity body is formed, to PVDF piezoelectric membrane sealing protections；Positive wire and cathode conductor are drawn out of cavity.The utility model, which has may be arranged at, to be hit in monitored area, as the receiver for directly receiving impact force signal, to obtain the impact stress value under Impact Load.
Description
Technical field
Sensor technical field is the utility model is related to, more particularly to a kind of PVDF piezoelectric membranes Impact monitoring sensor.
Background technology
At present, the piezoelectric film sensor master of PVDF (Polyvinylidene Fluoride) Piezoelectric Film for Designing is utilized
If being pasted onto the surface of the structure of test, test structure is caused structural vibration by impact, but PVDF piezoelectric transducers are not
It can be pasted onto at institute's geodesic structure shock point, but have certain distance apart from shock point, as electronic signals by signal transacting
Device receives.PVDF piezoelectric film sensors can not directly measure the impact load stress value at rum point.
Utility model content
In order to solve the above technical problems, the purpose of this utility model is to provide a kind of PVDF piezoelectric membranes Impact monitoring sensing
Device, concrete technical scheme are as follows：
A kind of PVDF piezoelectric membranes Impact monitoring sensor, including PVDF piezoelectric membranes, positive electrode layer, positive electrode layer, on
Protective layer and lower protective layer；
The PVDF piezoelectric membranes upper and lower surface is covered each by positive electrode layer and positive electrode layer；
Welded using double sided pressure and be connected positive wire and cathode conductor with positive electrode layer and positive electrode layer；
Covered with insulating barrier on the positive electrode layer and positive electrode layer；
The lower protective layer surface is provided with groove, will be covered with the PVDF piezoelectricity of positive electrode layer, positive electrode layer and insulating barrier
Film is placed in the groove of lower protective layer；
The up-protective layer is bonded together by epoxide-resin glue and lower protective layer, cavity body is formed, to PVDF piezoelectricity
Diaphragm seal is protected；
Positive wire and cathode conductor are drawn out of cavity.
A kind of described PVDF piezoelectric membranes Impact monitoring sensor, its preferred scheme are the positive electrode layer and negative electrode
Layer is the aluminium alloy of high conductivity.
A kind of described PVDF piezoelectric membranes Impact monitoring sensor, its preferred scheme are that the insulating barrier is poly- fluorine second
Alkene.
A kind of described PVDF piezoelectric membranes Impact monitoring sensor, its preferred scheme are the up-protective layer and lower protection
The material of layer is ultra-thin aluminum alloy.
The beneficial effects of the utility model：The utility model is connected using double sided pressure welding and positive wire, cathode conductor
Connect and form PVDF piezoelectric membrane Impact monitoring sensors, and sealed with the aluminum alloy anode layer and polyvinyl fluoride insulating barrier of high conductivity
Dress, and double-side ultrathin aluminum alloy shell is used, wherein a piece of ultra-thin aluminum alloy shell is to the PVDF piezoelectric membranes after encapsulation
Size designs groove, and PVDF piezoelectric membranes are placed wherein, and another ultra-thin aluminum alloy shell is covered in PVDF pressures
It is pasted together between film surface, most latter two ultra-thin aluminum alloy shell using epoxide-resin glue.Locate in this way
PVDF piezoelectric membrane Impact monitoring sensors after reason can be affixed directly to surveyed component surface, and will not be because of repeat impact
Under cause the damages of PVDF piezoelectric membrane Impact monitoring sensors, can also normally monitor the impact load stress at shock point
Value.The technical program patent can be pasted onto at surveyed shock point, to obtain the impact load stress for the structural elements that is hit
Value；The technical program can effectively obtain composite contignation, steel structure girder, steel construction under low velocity impact load action
Impact stress numerical value under the high strain-rate effect of post, concrete structure etc., further can be to the impact according to surveyed data
Structural elements degree of injury under load action is assessed.Impact and collision load can make structure be in large deformation state, but
Utility model still can measure building structure and impact and the impact load value of compressive stress under collision load effect.
Brief description of the drawings
Fig. 1 is a kind of PVDF piezoelectric membranes Impact monitoring sensor construction decomposing schematic representation；
Fig. 2 is a kind of PVDF piezoelectric membranes Impact monitoring sensor construction schematic diagram.
In figure, 1 is PVDF piezoelectric membranes, and 2 be positive electrode layer, and 3 be positive electrode layer；4 be positive electricity polar conductor, and 5 be negative electrode
Wire, 6 be up-protective layer, and 7 be lower protective layer, and 8 be groove.
Embodiment
A kind of PVDF piezoelectric membranes Impact monitoring sensor as Figure 1-Figure 2, including PVDF piezoelectric membranes 1, positive electrode
Layer 2, positive electrode layer 3, up-protective layer 6 and lower protective layer 7；
The upper and lower surface of PVDF piezoelectric membranes 1 is covered each by positive electrode layer 2 and positive electrode layer 3；
Welded using double sided pressure and be connected positive wire 4 and cathode conductor 5 with positive electrode layer 2 and positive electrode layer 3；
Covered with insulating barrier on the positive electrode layer 2 and positive electrode layer 3；
The surface of lower protective layer 7 is provided with groove 8, will be covered with the PVDF of positive electrode layer 2, positive electrode layer 3 and insulating barrier
Piezoelectric membrane 1 is placed in the groove 8 of lower protective layer 7；
The up-protective layer 6 is bonded together by epoxide-resin glue and lower protective layer 7, forms cavity body, and PVDF is pressed
The sealing protection of conductive film 1；
Positive wire 4 and cathode conductor 5 are drawn out of cavity.
The positive electrode layer 2 and positive electrode layer 3 are the aluminium alloy of high conductivity.
The insulating barrier is polyvinyl fluoride.
The material of the up-protective layer 6 and lower protective layer 7 is ultra-thin aluminum alloy.
Claims (4)
- A kind of 1. PVDF piezoelectric membranes Impact monitoring sensor, it is characterised in that：Including PVDF piezoelectric membranes, positive electrode layer, bear Electrode layer, up-protective layer and lower protective layer；The PVDF piezoelectric membranes upper and lower surface is covered each by positive electrode layer and positive electrode layer；Welded using double sided pressure and be connected positive wire and cathode conductor with positive electrode layer and positive electrode layer；Covered with insulating barrier on the positive electrode layer and positive electrode layer；The lower protective layer surface is provided with groove, will be covered with the PVDF piezoelectric membranes of positive electrode layer, positive electrode layer and insulating barrier It is placed in the groove of lower protective layer；The up-protective layer is bonded together by epoxide-resin glue and lower protective layer, cavity body is formed, to PVDF piezoelectric membranes Sealing protection；Positive wire and cathode conductor are drawn out of cavity.
- A kind of 2. PVDF piezoelectric membranes Impact monitoring sensor as claimed in claim 1, it is characterised in that：The positive electrode layer It is the aluminium alloy of high conductivity with positive electrode layer.
- A kind of 3. PVDF piezoelectric membranes Impact monitoring sensor as claimed in claim 1, it is characterised in that：The insulating barrier is Polyvinyl fluoride.
- A kind of 4. PVDF piezoelectric membranes Impact monitoring sensor as claimed in claim 1, it is characterised in that：The up-protective layer Material with lower protective layer is ultra-thin aluminum alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721198995.2U CN207163623U (en) | 2017-09-19 | 2017-09-19 | A kind of PVDF piezoelectric membranes Impact monitoring sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721198995.2U CN207163623U (en) | 2017-09-19 | 2017-09-19 | A kind of PVDF piezoelectric membranes Impact monitoring sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207163623U true CN207163623U (en) | 2018-03-30 |
Family
ID=61722393
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721198995.2U Expired - Fee Related CN207163623U (en) | 2017-09-19 | 2017-09-19 | A kind of PVDF piezoelectric membranes Impact monitoring sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207163623U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107356359A (en) * | 2017-09-19 | 2017-11-17 | 沈阳建筑大学 | A kind of PVDF piezoelectric membranes Impact monitoring sensor |
| CN110299248A (en) * | 2019-06-28 | 2019-10-01 | 清华大学 | A kind of supercapacitor with biaxial impact sensing |
| CN115711694A (en) * | 2022-11-15 | 2023-02-24 | 中国人民解放军火箭军工程大学 | Method and device for measuring surface cavitation impact load of solid propellant in cavitation field |
-
2017
- 2017-09-19 CN CN201721198995.2U patent/CN207163623U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107356359A (en) * | 2017-09-19 | 2017-11-17 | 沈阳建筑大学 | A kind of PVDF piezoelectric membranes Impact monitoring sensor |
| CN110299248A (en) * | 2019-06-28 | 2019-10-01 | 清华大学 | A kind of supercapacitor with biaxial impact sensing |
| CN110299248B (en) * | 2019-06-28 | 2020-07-14 | 清华大学 | Super capacitor with double-shaft impact sensing |
| CN115711694A (en) * | 2022-11-15 | 2023-02-24 | 中国人民解放军火箭军工程大学 | Method and device for measuring surface cavitation impact load of solid propellant in cavitation field |
| CN115711694B (en) * | 2022-11-15 | 2024-01-23 | 中国人民解放军火箭军工程大学 | Method and device for measuring cavitation impact load of solid propellant surface in cavitation field |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107356359A (en) | A kind of PVDF piezoelectric membranes Impact monitoring sensor | |
| CN207163623U (en) | A kind of PVDF piezoelectric membranes Impact monitoring sensor | |
| CN205785605U (en) | The drop impact pressure transducer of embedded type PVDF piezoelectric membrane | |
| CN206573245U (en) | A kind of shock measuring system of array PVDF piezoelectric membranes | |
| CN106768569A (en) | A kind of shock measuring system of array PVDF piezoelectric membranes | |
| CN106645406B (en) | The positioning system and localization method of a kind of spacecraft by impact from space debris | |
| CN201729612U (en) | Early warning device for the slope of outer sleeve frame of construction-purpose tower crane | |
| CN105547553B (en) | Passive high-sensitivity shock sensors and its test method based on piezo-electric electret | |
| CN106909733A (en) | Health state monitoring method for high-strength bolt of key component of steel truss bridge | |
| CN211429521U (en) | Waterproof MEMS microphone | |
| CN111337119B (en) | High-sensitivity vibration sensor | |
| CN205940851U (en) | Be used for detecting hydraulic pressure sensor | |
| CN203704971U (en) | A sensor system used for engineering mechanical failure detection | |
| CN206399563U (en) | A kind of structure monitoring system based on piezoelectric film sensor | |
| CN203163919U (en) | PVDF piezoelectric film force sensor for impact force dynamic measurement | |
| CN208488195U (en) | It is a kind of can repeat impact stress monitoring sensor | |
| CN105509948A (en) | Electret-based passive impact mechanical sensor and testing method thereof | |
| TW201915449A (en) | Water level monitoring system | |
| CN109373888A (en) | It is a kind of for testing the sensor for adopting seat earth deformation extent | |
| CN204115656U (en) | Novel bridge dam structure cylindricality change monitoring system | |
| CN108955963A (en) | It is a kind of can repeat impact stress monitoring sensor | |
| CN105203736A (en) | Multi-parameter monitoring system and method for geotechnical material in landslide area | |
| CN208635813U (en) | A kind of aggregate flush type piezoelectric transducer | |
| CN107271029A (en) | A kind of hydrophone integration module and its manufacturing process | |
| CN201820440U (en) | Energy transducer of fish finder |
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: 20180330 Termination date: 20180919 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |