CN207649538U - A kind of dynamically and statically monitoring system based on piezoelectric transducer and resistance strain plate - Google Patents
A kind of dynamically and statically monitoring system based on piezoelectric transducer and resistance strain plate Download PDFInfo
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- CN207649538U CN207649538U CN201721801203.6U CN201721801203U CN207649538U CN 207649538 U CN207649538 U CN 207649538U CN 201721801203 U CN201721801203 U CN 201721801203U CN 207649538 U CN207649538 U CN 207649538U
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- static
- dynamic
- resistance strain
- monitoring system
- dynamically
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- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
The dynamically and statically monitoring system based on piezoelectric transducer and resistance strain plate that the utility model discloses a kind of, static instrumentation device including the dynamic detection device and acquisition structural member static(al) strain that acquire structural member vibration state, the dynamic detection device is connected with dynamic signal acquisition instrument, the static instrumentation device is connected with static strain vasculum, the dynamic signal acquisition instrument, static strain vasculum signal output end be linked into dynamic/static signal analysis module.The utility model can the detection means static strain and dynamic strain sent out simultaneously, improve the monitoring range of structural healthy monitoring system.The utility model is integrated the Dynamic Signal monitored and stationary singnal, while monitoring dynamic deformation and static deformation, the comparative analysis of dynamic/static signal is also achieved, more can really reflect the deformation of the load and generation suffered by component, obtained data are more convincing.
Description
Technical field
The utility model belongs to building structure health monitoring research field, and in particular to one kind being based on piezoelectric transducer and electricity
The dynamically and statically monitoring system of resistive foil gauge.
Background technology
Currently, with the continuous development of building trade, structure type is continuously increased, and the safety issue of structure seems outstanding
Health monitoring systems for protrusion, the appearance based on this problem, safety of structure behavior are particularly important, and are especially being built
It builds, in a series of engineerings such as railway, highway, bridge tunnel, the health monitoring systems of structure are the primary hands for ensureing structure normal operation
Section and measure.
And health monitoring systems at this stage can be mainly divided into two major classes：One kind is using traditional foil gauge as main carriers
Static monitoring techniques system, this kind of monitoring system can be used for monitoring static load, and not have monitoring then for dynamic loads
Ability；In addition one kind is the dynamic monitoring system using piezoelectric transducer as representative, this monitoring system can be used for detecting dynamic
State load, but it is helpless for static load.Therefore, develop it is a set of can not only monitor static load, but also can be real-time
The monitoring system of output dynamic loads is particularly important.
Invention content
The utility model proposes in order to solve the problems existing in the prior art, a kind of based on piezoelectric sensing the purpose is to provide
The dynamically and statically monitoring system of device and resistance strain plate.
The technical solution of the utility model is：A kind of dynamically and statically monitoring system based on piezoelectric transducer and resistance strain plate
System includes the static instrumentation device of the dynamic detection device of acquisition structural member vibration state and acquisition structural member static(al) strain, institute
It states dynamic detection device with dynamic signal acquisition instrument to be connected, the static instrumentation device is connected with static strain vasculum, described
Dynamic signal acquisition instrument, static strain vasculum signal output end be linked into dynamic/static signal analysis module.
The dynamic detection device is the piezoelectric film sensor array being made of multiple piezoelectric film sensor arrays.
The piezoelectric film sensor is laid at span centre and the both ends of steel beam flange plate lower end.
The piezoelectric film sensor includes leading for Piezoelectric anisotropy film, plastic shielded layer and connection Piezoelectric anisotropy film
Line.
Charge amplifier is additionally provided between the dynamic detection device, dynamic signal acquisition instrument, the piezoelectric membrane passes
The conducting wire of sensor is linked into charge amplifier.
The piezoelectric film sensor is fixed on by bicomponent epoxy resin at steel beam flange plate.
The static instrumentation device includes the resistance strain plate array being made of multiple resistance strain plate arrays.
Span centre and beam-ends in steel beam web plate is arranged in the resistance strain plate.
The lower end of the steel beam flange plate is connected with steel beam web plate.
The resistance strain plate is fixed on by bicomponent epoxy resin at steel beam web plate.
Piezoelectric transducer and resistance strain plate are used in combination by the utility model, form a set of sound state letter
Number monitoring system, can the detection means static strain and dynamic strain sent out simultaneously, customer service piezoelectric film sensor
Dynamic loads, resistance strain plate, which can be monitored, can only monitor drawback present in static load, improve monitoring structural health conditions system
The monitoring range of system.
The utility model is integrated the Dynamic Signal monitored and stationary singnal, in monitoring dynamic deformation and static state
While deformation, the comparative analysis of dynamic/static signal is also achieved, more can really reflect load suffered by component and generation
Deformation, obtained data are more convincing.
Description of the drawings
Fig. 1 is the overall structure diagram of the utility model；
Fig. 2 is the structural schematic diagram of piezoelectric film sensor in the utility model；
Fig. 3 is the fixation schematic diagram of piezoelectric film sensor in the utility model；
Wherein：
1 steel beam web plate, 2 steel beam flange plate
3 piezoelectric film sensor array, 4 resistance strain plate array
5 charge amplifier, 6 dynamic signal acquisition instrument
7 static strain vasculum, 8 dynamic/static signal analysis module
9 Piezoelectric anisotropy film, 10 plastic shielded layer
11 conducting wire, 12 bicomponent epoxy resin.
Specific implementation mode
Hereinafter, the utility model is described in detail with reference to drawings and examples：
As shown in Fig. 1 ~ 3, a kind of dynamically and statically monitoring system based on piezoelectric transducer and resistance strain plate, including acquisition
The static instrumentation device of the dynamic detection device and acquisition structural member static(al) strain of structural member vibration state, the dynamic instrumentation dress
It sets and is connected with dynamic signal acquisition instrument 6, the static instrumentation device is connected with static strain vasculum 7, and the Dynamic Signal is adopted
Collect instrument 6, the signal output end of static strain vasculum 7 is linked into dynamic/static signal analysis module 8.
The dynamic detection device is the piezoelectric film sensor array 3 being made of multiple piezoelectric film sensor arrays.
The piezoelectric film sensor is laid at span centre and the both ends of 2 lower end of steel beam flange plate.
The piezoelectric film sensor includes Piezoelectric anisotropy film 9, plastic shielded layer 10 and connection Piezoelectric anisotropy film 9
Conducting wire 11.
Charge amplifier 5, the piezoelectric membrane are additionally provided between the dynamic detection device, dynamic signal acquisition instrument 6
The conducting wire 11 of sensor is linked into charge amplifier 5.
The piezoelectric film sensor is fixed on by bicomponent epoxy resin 12 at steel beam flange plate 2.
The static instrumentation device includes the resistance strain plate array 4 being made of multiple resistance strain plate arrays.
Span centre and beam-ends in steel beam web plate 1 is arranged in the resistance strain plate.
The lower end of the steel beam flange plate 2 is connected with steel beam web plate 1.
The resistance strain plate is fixed on by bicomponent epoxy resin 12 at steel beam web plate 1.
The charge amplifier 5 can be amplified the collected current signal of piezoelectric film sensor.
The dynamic signal acquisition instrument 6, static strain vasculum 7 and dynamic/static signal analysis module 8 pass through connection.
The piezoelectric film sensor side is provided with redundancy piezoelectric film sensor, and redundancy piezoelectric film sensor can
Ensure the accuracy of data.
The steel beam flange plate 2, steel beam web plate 1 are in I-shaped.
The dynamic signal acquisition instrument 6 is DSpace（Digital space）System.
The static strain vasculum 7 is AMSB2-32 static state Acquisition Instruments.
The dynamic/static signal analysis module 8 is Keysight/N9040B signal analyzers.
The course of work of the utility model is as follows：
Piezoelectric film sensor array 3 and resistance strain plate array 4 are pasted respectively by bicomponent epoxy resin 12
In on two steel beam flange plates 2 and steel beam web plate 1, piezoelectric film sensor array 3 is adopted by charge amplifier 5, Dynamic Signal
Collection instrument 6 is connected with dynamic/static signal analysis module 8, and resistance strain plate array 4 is believed by static strain vasculum 7 and sound state
Number analysis module 8 is connected.
When there is load action in structure, dynamic loads can make steel beam flange plate 2 generate vibration, and vibration can lead to piezoelectricity
Thin film sensor array 3 generates the electrical signal of dynamic change, which is adopted after the amplification of charge amplifier 5 by Dynamic Signal
Collect instrument 6 to acquire, and is transferred to dynamic/static signal analysis module 8.
It strains when static load can be such that steel beam web plate 1 generates, becomes so as to cause 4 resistance value of resistance strain plate array
Change, changes so as to cause the 7 collected signal of institute of static strain vasculum, and transmit a signal to dynamic/static signal analysis
At module 8；Dynamic/static signal analysis module 8 analyzes collected sound state electrical signal respectively, restores structure
Real bearing state.
Piezoelectric transducer and resistance strain plate are used in combination by the utility model, form a set of sound state letter
Number monitoring system, can the detection means static strain and dynamic strain sent out simultaneously, customer service piezoelectric film sensor
Dynamic loads, resistance strain plate, which can be monitored, can only monitor drawback present in static load, improve monitoring structural health conditions system
The monitoring range of system.
The utility model is integrated the Dynamic Signal monitored and stationary singnal, in monitoring dynamic deformation and static state
While deformation, the comparative analysis of dynamic/static signal is also achieved, more can really reflect load suffered by component and generation
Deformation, obtained data are more convincing.
Claims (10)
1. a kind of dynamically and statically monitoring system based on piezoelectric transducer and resistance strain plate, it is characterised in that：It is tied including acquisition
The static instrumentation device of the dynamic detection device and acquisition structural member static(al) strain of component vibration state, the dynamic detection device
With dynamic signal acquisition instrument（6）It is connected, the static instrumentation device and static strain vasculum（7）It is connected, the Dynamic Signal
Acquisition Instrument（6）, static strain vasculum（7）Signal output end be linked into dynamic/static signal analysis module（8）In.
2. a kind of dynamically and statically monitoring system based on piezoelectric transducer and resistance strain plate according to claim 1,
It is characterized in that：The dynamic detection device is the piezoelectric film sensor array being made of multiple piezoelectric film sensor arrays
（3）.
3. a kind of dynamically and statically monitoring system based on piezoelectric transducer and resistance strain plate according to claim 2,
It is characterized in that：The piezoelectric film sensor is laid in steel beam flange plate（2）At the span centre of lower end and both ends.
4. a kind of dynamically and statically monitoring system based on piezoelectric transducer and resistance strain plate according to claim 1,
It is characterized in that：The piezoelectric film sensor includes Piezoelectric anisotropy film（9）, plastic shielded layer（10）And connection Piezoelectric anisotropy
Film（9）Conducting wire（11）.
5. a kind of dynamically and statically monitoring system based on piezoelectric transducer and resistance strain plate according to claim 4,
It is characterized in that：The dynamic detection device, dynamic signal acquisition instrument（6）Between be additionally provided with charge amplifier（5）, the piezoelectricity
The conducting wire of thin film sensor（11）It is linked into charge amplifier（5）.
6. a kind of dynamically and statically monitoring system based on piezoelectric transducer and resistance strain plate according to claim 3,
It is characterized in that：The piezoelectric film sensor passes through bicomponent epoxy resin（12）It is fixed on steel beam flange plate（2）Place.
7. a kind of dynamically and statically monitoring system based on piezoelectric transducer and resistance strain plate according to claim 3,
It is characterized in that：The static instrumentation device includes the resistance strain plate array being made of multiple resistance strain plate arrays（4）.
8. a kind of dynamically and statically monitoring system based on piezoelectric transducer and resistance strain plate according to claim 7,
It is characterized in that：The resistance strain plate is arranged in steel beam web plate（1）Span centre and beam-ends.
9. a kind of dynamically and statically monitoring system based on piezoelectric transducer and resistance strain plate according to claim 8,
It is characterized in that：The steel beam flange plate（2）Lower end and steel beam web plate（1）It is connected.
10. a kind of dynamically and statically monitoring system based on piezoelectric transducer and resistance strain plate according to claim 9,
It is characterized in that：The resistance strain plate passes through bicomponent epoxy resin（12）It is fixed on steel beam web plate（1）Place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721801203.6U CN207649538U (en) | 2017-12-21 | 2017-12-21 | A kind of dynamically and statically monitoring system based on piezoelectric transducer and resistance strain plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721801203.6U CN207649538U (en) | 2017-12-21 | 2017-12-21 | A kind of dynamically and statically monitoring system based on piezoelectric transducer and resistance strain plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207649538U true CN207649538U (en) | 2018-07-24 |
Family
ID=62878080
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721801203.6U Expired - Fee Related CN207649538U (en) | 2017-12-21 | 2017-12-21 | A kind of dynamically and statically monitoring system based on piezoelectric transducer and resistance strain plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207649538U (en) |
-
2017
- 2017-12-21 CN CN201721801203.6U patent/CN207649538U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180724 Termination date: 20181221 |