CN206399563U - A kind of structure monitoring system based on piezoelectric film sensor - Google Patents
A kind of structure monitoring system based on piezoelectric film sensor Download PDFInfo
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- CN206399563U CN206399563U CN201621421239.7U CN201621421239U CN206399563U CN 206399563 U CN206399563 U CN 206399563U CN 201621421239 U CN201621421239 U CN 201621421239U CN 206399563 U CN206399563 U CN 206399563U
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- piezoelectric film
- film sensor
- sensor
- piezoelectric
- monitoring system
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Abstract
The utility model discloses a kind of structure monitoring system based on piezoelectric film sensor, sensor-based system of the road and bridge test position without external power supply is arranged at including multiple, the sensor-based system is connected by interface with signal amplifying system input, the signal amplifying system output end is connected with receiving system, the receiving system output end is connected with Signal Analysis System, and the sensor-based system is piezoelectric film sensor.The utility model is using made by 03 type Piezoelectric anisotropy films of carbon nano-tube modification, and the sensor has passivity, and external power supply is not needed during use, reduces the use cost of sensor-based system.Piezo-electric sensor signals intensity is high, sensitivity is good, the features such as be not in signal lag in signals transmission, the effective sensitivity for improving system and sensing accuracy, the piezoelectric modulus of piezoelectric film sensor is stable, and its piezoelectric property is not in the phenomenon of degeneration during use.
Description
Technical field
The utility model belongs to architectural engineering health monitoring field, and in particular to a kind of knot based on piezoelectric film sensor
Structure monitoring system.
Background technology
At present, continuing to develop with China's building trade, especially with the hair at full speed of China's high ferro industry in recent years
Exhibition, the railway bridge of many large spans is constantly built in various regions, especially some super large railway bridges, is occurred in that in recent years obvious
Increase.For these railway bridges, because span is big, the load intensity born in use is big, and load form is more, institute
With how to ensure the safe handling of these bridges and before there is safety problem timely early warning be particularly important.At present,
The sensor used in bridge health monitoring field is a lot, such as：Displacement transducer, resistance strain plate, grating sensor etc.
Deng, but these sensor common problems be must external power supply could work, and be not present for piezoelectric transducer
So the problem of, piezoelectric transducer is passive, as long as there is strain to produce, its own will external output charge, therefore, piezoelectricity
Sensor has boundless application prospect in the monitoring field of bridge.
The content of the invention
The utility model proposes to solve the problem of prior art is present, a kind of based on piezoelectric membrane the purpose is to provide
The structure monitoring system of sensor.
The technical solution of the utility model is：A kind of structure monitoring system based on piezoelectric film sensor, including it is multiple
Sensor-based system of the road and bridge test position without external power supply is arranged at, the sensor-based system is inputted by interface and signal amplifying system
End is connected, and the signal amplifying system output end is connected with receiving system, the receiving system output end and signal
Analysis system is connected, and the sensor-based system is piezoelectric film sensor.
The piezoelectric film sensor includes piezoelectric membrane, electrode, screen layer, lead, and the piezoelectric membrane is carbon nanometer
Pipe is modified 0-3 type Piezoelectric anisotropy films.
The piezoelectric film sensor is mixed by the way that bicomponent epoxy resin is gluing in the reinforcing bar supported by reinforced column
On solidifying Tu Liang.
The piezoelectric film sensor is placed in compartment, and the compartment is affixed on by hot melt butyl rubber and mixed by reinforcing bar
On the reinforced beam of solidifying earth pillar support.
Formed in the compartment and be easy to the through hole that lead is passed through.
Rubber seal is provided with the through hole.
The signal amplifying system is made up of multichannel charge amplifier.
The receiving system is mainly made up of DSPACE real-time emulation systems.
The electrode is made up of one-component conductive silver paste.
The utility model is using made by the 0-3 type Piezoelectric anisotropy films of carbon nano-tube modification, and the sensor has passive
Property, external power supply is not needed during use, the use cost of sensor-based system is reduced.
The piezoelectric transducer of carbon nano-tube modification is also with signal intensity is high, sensitivity is good, in signal in the utility model
The features such as being not in signal lag in transmitting procedure, can effectively improve system using this sensor within the system
Sensitivity and sensing accuracy.
The piezoelectric modulus of piezoelectric film sensor is very stable in the utility model, and its piezoelectric property is not during use
The phenomenon of degeneration occurs, therefore, need not be demarcated during use, reduce use cost.
Brief description of the drawings
Fig. 1 is overall structure diagram of the present utility model；
Fig. 2 is the connection diagram of sensor-based system and reinforced beam in the utility model；
Fig. 3 is the structural representation of sensor-based system in the utility model；
Fig. 4 is the stereogram in the utility model；
Wherein：
The reinforced beam of 1 reinforced column 2
The interface of 3 sensor-based system 4
The receiving system of 5 signal amplifying system 6
The piezoelectric membrane of 7 Signal Analysis System 8
The screen layer of 9 electrode 10
The piezoelectric film sensor of 11 lead 12
The rubber seal of 13 compartment 14.
Embodiment
Hereinafter, the utility model is described in detail with embodiment referring to the drawings：
As shown in Fig. 1 ~ 4, a kind of structure monitoring system based on piezoelectric film sensor, including it is multiple be arranged at road and bridge inspection
Location puts the sensor-based system 3 without external power supply, and the sensor-based system 3 is connected by interface 4 with the input of signal amplifying system 5,
The output end of signal amplifying system 5 is connected with receiving system 6, the output end of receiving system 6 and signal analysis
System 7 is connected, and the sensor-based system 3 is piezoelectric film sensor 12.
The piezoelectric film sensor 12 includes piezoelectric membrane 8, electrode 9, screen layer 10, lead 11, the piezoelectric membrane 8
For carbon nano-tube modification 0-3 type Piezoelectric anisotropy films.
The piezoelectric film sensor 12 is gluing in the reinforcing bar supported by reinforced column 1 by bicomponent epoxy resin
On beams of concrete 2.
The piezoelectric film sensor 12 is placed in compartment 13, the compartment 13 by hot melt butyl rubber be affixed on by
On the reinforced beam 2 that reinforced column 1 is supported.
Formed in the compartment 13 and be easy to the through hole that lead 11 is passed through.
Rubber seal 14 is provided with the through hole.
The signal amplifying system 5 is made up of multichannel charge amplifier.
The receiving system 6 is mainly made up of DSPACE real-time emulation systems.
The electrode 9 is made up of one-component conductive silver paste.
The reinforced beam 2 is T-shaped beam.
Described Signal Analysis System 7 uses multichannel dynamic signalling analysis system, highest sample rate：200KHz.
The course of work of the present utility model is as follows：
Piezoelectric film sensor 12 is directly adhered to the surface of reinforced beam 2, lead 11 is picked out, piezoelectric membrane is passed
Sensor 12 sets the compartment 13 of plastics above, and compartment 13 is affixed on reinforced beam 2 using hot melt butyl rubber；Lead
11 pick out from the hole of compartment 13, are connected with electric charge amplification system 5, the lead 11 and signal picked out from electric charge amplification system 5
Reception system 6 is connected, and the lead picked out from receiving system 6 is connected with Signal Analysis System 7.
The characteristics of the utility model is maximum is that, as core sensing element, piezoelectric membrane is passed using piezoelectric film sensor 12
Sensor 12 is passive, and external power supply is not needed in use, when having load action above bridge, piezoelectric membrane sensing
Device 12 can be believed with the spontaneous generation electric charge of the change of structural stress, the electric charge by the amplification of electric charge amplification system 5
Number reception system 6 is received, and bridge can be analyzed according to the power of signal under load action further according to Signal Analysis System 7
Stress and strain situation, implements real-time monitoring to bridge structure.
The piezoelectric transducer of carbon nano-tube modification is also with signal intensity is high, sensitivity is good, in signal in the utility model
The features such as being not in signal lag in transmitting procedure, can effectively improve system using this sensor within the system
Sensitivity and sensing accuracy.
The piezoelectric modulus of piezoelectric film sensor is very stable in the utility model, and its piezoelectric property is not during use
The phenomenon of degeneration occurs, therefore, need not be demarcated during use, reduce use cost.
Claims (9)
1. a kind of structure monitoring system based on piezoelectric film sensor, it is characterised in that：Road and bridge detection is arranged at including multiple
Sensor-based system of the position without external power supply（3）, the sensor-based system（3）Pass through interface（4）With signal amplifying system（5）Input
It is connected, the signal amplifying system（5）Output end and receiving system（6）It is connected, the receiving system（6）Output end
With Signal Analysis System（7）It is connected, the sensor-based system（3）For piezoelectric film sensor（12）.
2. a kind of structure monitoring system based on piezoelectric film sensor according to claim 1, it is characterised in that：It is described
Piezoelectric film sensor（12）Including piezoelectric membrane（8）, electrode（9）, screen layer（10）, lead（11）, the piezoelectric membrane（8）
For carbon nano-tube modification 0-3 type Piezoelectric anisotropy films.
3. a kind of structure monitoring system based on piezoelectric film sensor according to claim 2, it is characterised in that：It is described
Piezoelectric film sensor（12）It is gluing in by reinforced column by bicomponent epoxy resin（1）The reinforced beam of support
（2）On.
4. a kind of structure monitoring system based on piezoelectric film sensor according to claim 2, it is characterised in that：It is described
Piezoelectric film sensor（12）It is placed in compartment（13）In, the compartment（13）It is affixed on and is mixed by reinforcing bar by hot melt butyl rubber
Solidifying earth pillar（1）The reinforced beam of support（2）On.
5. a kind of structure monitoring system based on piezoelectric film sensor according to claim 4, it is characterised in that：It is described
Compartment（13）Lead is easy in middle formation（11）The through hole passed through.
6. a kind of structure monitoring system based on piezoelectric film sensor according to claim 5, it is characterised in that：It is described
Rubber seal is provided with through hole（14）.
7. a kind of structure monitoring system based on piezoelectric film sensor according to claim 1, it is characterised in that：It is described
Signal amplifying system（5）It is made up of multichannel charge amplifier.
8. a kind of structure monitoring system based on piezoelectric film sensor according to claim 1, it is characterised in that：It is described
Receiving system（6）Mainly it is made up of DSPACE real-time emulation systems.
9. a kind of structure monitoring system based on piezoelectric film sensor according to claim 2, it is characterised in that：It is described
Electrode（9）It is made up of one-component conductive silver paste.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621421239.7U CN206399563U (en) | 2016-12-23 | 2016-12-23 | A kind of structure monitoring system based on piezoelectric film sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621421239.7U CN206399563U (en) | 2016-12-23 | 2016-12-23 | A kind of structure monitoring system based on piezoelectric film sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206399563U true CN206399563U (en) | 2017-08-11 |
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ID=59510790
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621421239.7U Expired - Fee Related CN206399563U (en) | 2016-12-23 | 2016-12-23 | A kind of structure monitoring system based on piezoelectric film sensor |
Country Status (1)
| Country | Link |
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| CN (1) | CN206399563U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108801784A (en) * | 2018-04-03 | 2018-11-13 | 华北理工大学 | A kind of carbon nano tube compound material structural healthy monitoring system |
| CN109357795A (en) * | 2018-12-28 | 2019-02-19 | 吉林建筑大学 | A kind of cement base piezoelectric composite material sensor |
| CN112747843A (en) * | 2020-11-30 | 2021-05-04 | 华中科技大学 | Bridge monitoring method and device based on flexible piezoelectric sensor |
-
2016
- 2016-12-23 CN CN201621421239.7U patent/CN206399563U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108801784A (en) * | 2018-04-03 | 2018-11-13 | 华北理工大学 | A kind of carbon nano tube compound material structural healthy monitoring system |
| CN109357795A (en) * | 2018-12-28 | 2019-02-19 | 吉林建筑大学 | A kind of cement base piezoelectric composite material sensor |
| CN109357795B (en) * | 2018-12-28 | 2023-09-01 | 吉林建筑大学 | Cement-based piezoelectric composite material sensor |
| CN112747843A (en) * | 2020-11-30 | 2021-05-04 | 华中科技大学 | Bridge monitoring method and device based on flexible piezoelectric sensor |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170811 Termination date: 20171223 |
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| CF01 | Termination of patent right due to non-payment of annual fee |