CN109142521A - Steel Bridge Deck water-proof tack coat monitoring device and method based on piezoelectric transducer - Google Patents
Steel Bridge Deck water-proof tack coat monitoring device and method based on piezoelectric transducer Download PDFInfo
- Publication number
- CN109142521A CN109142521A CN201810842598.7A CN201810842598A CN109142521A CN 109142521 A CN109142521 A CN 109142521A CN 201810842598 A CN201810842598 A CN 201810842598A CN 109142521 A CN109142521 A CN 109142521A
- Authority
- CN
- China
- Prior art keywords
- water
- tack coat
- piezoelectric
- proof tack
- signal
- 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.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/04—Analysing solids
- G01N29/045—Analysing solids by imparting shocks to the workpiece and detecting the vibrations or the acoustic waves caused by the shocks
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/02—Indexing codes associated with the analysed material
- G01N2291/028—Material parameters
- G01N2291/0289—Internal structure, e.g. defects, grain size, texture
Landscapes
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The Steel Bridge Deck water-proof tack coat monitoring device based on piezoelectric transducer that the invention discloses a kind of, it include: steel bridge deck (1), water-proof tack coat (2), concrete pavement layer (3), it is characterised in that further include groove (4), piezoelectric actuator (5), piezoelectric transducer (6), signal generator (7), data processing module (10).Water-proof tack coat (2) and concrete pavement layer (3) are successively laid on steel bridge deck (1), groove (4) is preset on steel bridge deck (1), piezoelectric transducer (6) is placed in groove (4), and piezoelectric actuator (5) is pasted onto the upper surface of water-proof tack coat (2).Signal generator (7) generates signal excitation piezoelectric actuator (5) vibration, stress wave is generated in water-proof tack coat, piezoelectric transducer (6) generates voltage signal after detecting stress wave, it is transferred to data processing module (10), realizes the damage status of on-line monitoring water-proof tack coat in situ, real-time.
Description
Technical field
The invention belongs to the monitoring technical fields of bridge deck pavement structure, and specifically the Steel Bridge Deck based on piezoelectric transducer is anti-
Water adhesive layer monitoring device and method.
Background technique
Bridge deck pavement structure refers to the single-layer or multi-layer concrete structure being laid on steel bridge deck for vehicle driving, mixes
Entirety is combined by water-proof tack coat between solidifying soil and steel bridge deck, water-proof tack coat, which also acts as, prevents surface gathered water from infiltrating into
The effect that steel bridge deck causes it to corrode.Therefore, the mechanical characteristic of water-proof tack coat and damage status integrally will to paving structure
It has an important influence on.Since there are larger differences on physical and mechanical properties for steel and concrete, meanwhile, steel bridge deck surface ten
Light splitting is slided, and in routine use, water-proof tack coat often becomes the weak link in paving structure, in the work repeatedly of vehicular load
With lower generation failure by shear, the service life of bridge deck pavement structure is severely impacted.How to find in time and to repair waterproof viscous
The damage of knot layer is to influence the critical issue of paving structure durability.
Since water-proof tack coat is between the concrete and steel bridge deck for completion of mating formation, its work shape can not be directly observed
State, detection and reparation difficulty are very big.Existing monitoring method specifically includes that Vibration identification method, nondestructive testing method
Deng, wherein nondestructive inspecting method (NDT) application it is relatively broad, it include ultrasound emission technology, ultrasonic technology, impedance method,
Infrared thermal imagery method, pulse radar method and X-ray etc..
A kind of device of on-site test deck paving interlayer bonding pull strength is used in CN 106092880A patent
And detection method.Firstly, piercing pave-load layer matrix with corning machine in selected detection section, it is dry then to will test section cleaning
Only, after its drying, substance is pasted into coating on the lower surface of dedicated bonding pull strength detection device or monitoring surface, then
Drawing head is placed to section to be measured, it is ensured that pedestal is overlapped with the central axes of drawing bar, last uniformly slowly to pull drawing bar,
Until detection section is pulled off out, reading at this time is read, and according to cross-sectional area, pull strength is pasted in measurement.This method solution
The test problems determined to water-proof tack coat adhesion strength, but whole process needs manpower execute-in-place, and damages detection pair
The globality on road surface causes certain destruction, and measured point is limited, and testing result lacks representative.In addition (high under specific condition
Temperature etc.), it is not easy to operate.
In the Master's thesis of Chang An University's Han Yan wave, " steel bridge deck is ground with bond strength between layers non-destructive test of mating formation
Study carefully " in, adhesion strength is explored using ultrasound detection, scheme is to issue ultrasonic wave using probe, in steel plate side
It is tested, is converted using waveform of the ultrasonic wave on different interfaces, including generate back wave and refracted wave etc., carry out steel-sky
Gas, steel-water, the three kinds of defect interface tests of steel-soil are compared with the good interface of indoor connection, using echo sum, the wave at interface
Physical quantity of the ratio of high, adjacent acoustic pressure as initial characterization detection adhesion strength, by the envelope of ultrasonic echo wave crest with
The damped expoential of envelope size and envelope curve between reference axis judges the bond quality at interface.This method utilizes ultrasound inspection
Survey, accomplished non-destructive testing, will not road pavement globality damage, operating process is simple and easy, and feasibility is stronger.However,
The factor for influencing ultrasound is more, steel bridge deck itself and coupling state etc., and the very strong experiment of a large amount of specific aims is needed
The echoing characteristics of confirmation bonding good interface.Secondly, portion of ultrasonic sound wave probe is expensive, make troubles to using.It is most important
: this monitoring scheme can not accomplish real-time detection, need artificially to detect using probe or by robot region-by-region, behaviour
Make relatively cumbersome.
Currently, being widely used in construction material as the piezoelectric material of representative using lead zirconate titanate (PZT) material monitors field,
It has the characteristics that easy processing, light weight, is not affected by the external environment, low in cost and suitable real-time monitoring.University Of Tianjin
Papers written by postgraduates " the inside concrete monitoring steel bar corrosion and its bond-slip properties based on piezoceramic transducer of Gao Zhiyu
Research " in, test monitoring and numerical simulation based on PZT wave propagation method are carried out to deformed bar and obtains and answers by comparative analysis
Amplitude variation of the Reeb in deformed bar is inside concrete steel with the affecting laws of excitation centre frequency and propagation distance
The test of muscle corrosion monitoring provides foundation.Piezoelectricity monitoring is carried out for the armored concrete test specimen after electrochemical rust, comparison is different
Signal amplitude situation of change under corrosion ratio obtains in the lower situation of reinforcing steel corrosion rate, the signal that sensor receives with
Increasing in gradually decreasing trend for corrosion ratio.But with the progress of electrochemical rust, after the corrosion to a certain extent of reinforcing bar,
The signal received will start to increase, and be the relationship of quadratic function between the two.The telecommunications gone out again by sensor response
Number variation, obtain reinforcing bar deformation and corrosion situation.
Summary of the invention
The purpose of the present invention is for existing water-proof tack coat monitoring device is cumbersome, is difficult to realize constantly to monitor and fastly
The problems such as speed response, provide a kind of Steel Bridge Deck water-proof tack coat monitoring device based on piezoelectric transducer with and method.Technical side
Case are as follows: vibration is generated according to the electric signal that signal generator issues by the piezoelectric actuator being preset on water-proof tack coat, is in
Piezoelectric transducer under water-proof tack coat perceive the vibration transmitted in adhesive layer caused by after stress wave, issue corresponding
Voltage signal is simultaneously constantly transferred to data collecting instrument and processing module, and data processing module analyses and compares to voltage signal
Afterwards, the working condition of you can get it water-proof tack coat, judges whether it breakage occurs.When the present invention makes full use of electric signal
When, the advantages that accurate and piezoelectric actuator and sensor are at low cost, response is fast, can effectively solve water-proof tack coat equipment
It is difficult to realize constantly to monitor and the problems such as quick response.
The present invention be a kind of Steel Bridge Deck water-proof tack coat monitoring device based on piezoelectric transducer with and method, device include
Steel bridge deck 1, water-proof tack coat 2, concrete pavement layer 3, groove 4, piezoelectric actuator 5, piezoelectric transducer 6, signal generator
7, power amplifier 8, data collecting instrument 9, data processing module 10, signal wire 11, signal wire 12.The steel bridge deck 1 it
On, it is successively laid with water-proof tack coat 2 and concrete pavement layer 3, is formed from top to bottom are as follows: concrete pavement layer 3, water-proof tack coat
2 and steel bridge deck 1 integral structure.Groove 4 is preset on steel bridge deck, and piezoelectric transducer 6 is placed in groove 4.Pressure
Electric drive 5 is pasted onto the upper surface of water-proof tack coat 2, is spaced within 1 meter in the horizontal direction with piezoelectric transducer 6, then by mixing
Solidifying soil pave-load layer 3 pours covering and fixes.Signal generator 7 by signal wire 11 successively with power amplifier 8 and piezoelectric actuator 5
Connection generates monitoring signals by signal generator 7, and piezoelectric actuator 5 is amplified and be transferred to monitoring signals by power amplifier 2,
Piezoelectric actuator 5 is motivated to generate vibration, to generate stress wave in water-proof tack coat.Piezoelectric transducer 6 detects stress wave
After generate voltage signal, through signal wire 12 be transferred to data collecting instrument 9 store, then by data processing module 10 use non-destructive tests
Algorithm analyses and compares to signal, obtains the damage information of water-proof tack coat, to realize that in situ, real-time, on-line monitoring is anti-
The working condition and damage status of water adhesive layer.
Compared to existing water-proof tack coat monitoring device, advantages of the present invention are as follows:
1. the detection to water-proof tack coat working condition is realized by the conversion between signal of communication and voltage signal, gram
Taken prior art cannot constantly stable detection defect, meanwhile, the piezoelectric actuator and piezoelectric sensing that this programme uses
Device has many advantages, such as that small in size, light weight, at low cost and response are fast, and mounting process is synchronous with water-proof tack coat laying, very simple
Folk prescription just, can carry out multiple groups configuration according to bridge floor length and width, may not only be applied to the long-term fast of newly-built steel bridge paving structure
Slowdown monitoring, it can also be used to which old bridge is mated formation the monitoring of repairing and reinforcement, has good future in engineering applications.
2. test philosophy of the invention is the variation based on stress wave propagation signal, waterproof is obtained in conjunction with non-destructive tests algorithm
The damage information of adhesive layer, can in situ in use, real-time, on-line monitoring water-proof tack coat working condition and damage shape
Condition realizes the intelligent positioning and diagnosis of water-proof tack coat damage, makes up the missing of existing monitoring technology, to formulate effective support
It protects correcting strategy and foundation is provided, need to carry out destructive testing compared to some prior arts and be monitored, the present invention is without interrupting
Traffic reduces maintenance cost, improves economic and social benefit.
Detailed description of the invention
Fig. 1 monitoring device is laid out main view
Fig. 2 monitoring device is laid out side view
Fig. 3 includes the monitoring device layout of three monitoring unit
Fig. 4 piezoelectric intelligent aggregate activation configuration schematic diagram
Appended drawing reference and its representative component part are as follows: 1- steel bridge deck, 2- water-proof tack coat, 3- concrete paving
Fill layer, 4- groove, 5- piezoelectric actuator, 6- piezoelectric transducer, 7- signal generator, 8- power amplifier, 9- data
Acquisition Instrument, 10- data processing module, 11- signal wire, 12- signal wire, 13- basalt stone, 14-PZT piezoelectric ceramics
Piece, 15- lead, 16- consolidate epoxy adhesive coating fastly.
Specific embodiment
Embodiment one:
The present invention is a kind of Steel Bridge Deck water-proof tack coat monitoring device based on piezoelectric transducer, comprising: steel bridge deck 1,
Water-proof tack coat 2, concrete pavement layer 3, groove 4, piezoelectric actuator 5, piezoelectric transducer 6, signal generator 7, power amplification
Device 8, data collecting instrument 9, data processing module 10, signal wire 11, signal wire 12.
Combined with Figure 1 and Figure 2, on the steel bridge deck 1, it is successively laid with water-proof tack coat 2 and concrete pavement layer 3.
Groove 4 is preset on steel bridge deck, and piezoelectric transducer 6 is placed in groove 4.Piezoelectric actuator 5 is pasted onto water-proof tack coat 2
Upper surface, with piezoelectric transducer 6 in the horizontal direction between be divided into 0.4 to 0.8 meter, then by concrete pavement layer 3 to pour covering solid
It is fixed.
Signal generator 7 is successively connected with power amplifier 8 and piezoelectric actuator 5 by signal wire 11 combined with Figure 1 and Figure 2,
It connects, monitoring signals is generated by signal generator 7, piezoelectric actuator 5 is amplified and be transferred to monitoring signals by power amplifier 2, swashs
It encourages piezoelectric actuator 5 and generates vibration, to generate stress wave in water-proof tack coat.Piezoelectric transducer 6 is detected via waterproof
Es-region propagations are bonded after next stress wave, generate corresponding voltage signal immediately, data collecting instrument 9 is transferred to through signal wire 12 and stores up
It deposits, then signal is compared with non-destructive tests algorithm by data processing module 10, obtain the damage of water-proof tack coat
Information, to realize the working condition and damage status of on-line monitoring water-proof tack coat in situ, real-time.
Embodiment two:
In conjunction with Fig. 3, a kind of Steel Bridge Deck water-proof tack coat monitoring unit based on piezoelectric transducer, comprising: steel bridge deck 1,
Water-proof tack coat 2, concrete pavement layer 3, groove 4, signal generator 7, power amplifier 8, data collecting instrument 9, data processing
Module 10, signal wire 11, signal wire 12, Piezoelectric Driving sensor monitoring module 13.Wherein Piezoelectric Driving sensor monitoring module 13 by
One piezoelectric transducer 6 and a piezoelectric actuator 5 are constituted.
On the steel bridge deck 1, it is successively laid with water-proof tack coat 2 and concrete pavement layer 3.On steel bridge deck
Preset 2-5 groove 4, the spacing between any two groove are maintained at 2 meters or more, and piezoelectricity identical with 4 quantity of groove is arranged
Sensor monitoring module 13 is driven, wherein piezoelectric transducer 6 is placed in groove 4.Pressure in Piezoelectric Driving sensor monitoring module 13
Electric drive 5 is pasted onto the upper surface of water-proof tack coat 2, with the piezoelectric transducer 6 of same module in the horizontal direction between be divided into 0.4
To 0.8 meter, then covering is poured by concrete pavement layer 3 and is fixed.
Signal generator 7 is connect by signal wire 11 with power amplifier 8, then with each Piezoelectric Driving sensor monitoring module
Piezoelectric actuator 5 in 13 is separately connected, and generates monitoring signals by signal generator 7, power amplifier 2 amplifies monitoring signals
And synchronous transfer gives each piezoelectric actuator 5, motivates each piezoelectric actuator 5 to generate vibration, answers to generate in water-proof tack coat
Reeb.Piezoelectric transducer 6 in each Piezoelectric Driving sensor monitoring module detect same module piezoelectric actuator generate and via
Water-proof binding Es-region propagations and come stress wave after, generate corresponding voltage signal immediately, through signal wire 12 be transferred to data acquisition
Instrument 9 stores, then signal is compared with non-destructive tests algorithm by data processing module 10, obtains each Piezoelectric Driving
The water-proof tack coat damage information of 13 corresponding position of sensor monitoring module, thus the damage to water-proof tack coat in this region
Position and degree are positioned and are diagnosed.In actual operation, can according to bridge floor length and width actual conditions, be arranged 2 with
On monitoring unit, realize to all standing of entire bridge deck water-proof tack coat, constantly monitor.
The Steel Bridge Deck water-proof tack coat monitoring method based on piezoelectric transducer is as follows combined with Figure 1 and Figure 2:
(1) signal generator 7 issues Gaussian pulse signal E1, E is enlarged into through power amplifier 82；
(2) piezoelectric actuator 5 receives E2Afterwards, stress wave is issued according to piezoelectric effect, pressure is reached by water-proof tack coat 2
Electric transducer 6.
(3) piezoelectric transducer 6 is in time tiMoment issues original signal S after detecting stress wavei, adopted through data collecting instrument 9
After collection storage, by signal SiIt is sent to data processing module 10, data processing module 10 is to SiCarry out n-layer wavelet packet decomposition, common property
Raw 2nA subset, i.e.,Define Si,jFor original signal SiThe jth frequency band after n-layer wavelet packet decomposition
On subsignal, it can be expressed as the form of all low-and high-frequency subband vectors of jth frequency band: Si,j=[xi,j,1,xi,j,2,L,
Si,j,m-1,Si,j,m], wherein i indicate obtain signal time, j indicate frequency band (j=1,2, L, 2n-1,2n), m indicates jth layer
Hits.Using Ei,jIndicate signal S after decomposingi,jEnergy, its calculation formula is:
Ei,j=| | Si,j||2 2=xi,j,1 2+xx,j,2 2+L+xi,j,m-1 2+xi,j,m 2, then time tiWhen signal SiEnergy vectors
EiAre as follows:
Signal vector is E when definition water-proof tack coat 2 is intact0,It is viscous with waterproof
Signal energy E when knot layer is intact0On the basis of, the damage index I of water-proof tack coat 2 when defining time i are as follows:
(4) according to the definition of damage index I, when water-proof tack coat 2 keeps good, Ei,jClose to E0,j, damage index I
Close to 0；When water-proof tack coat 2 is in collapse state, the signal energy that piezoelectric transducer 6 receives is very low, Ei,jClose to 0,
Damage index I is close to 1 at this time.Therefore, damage index I is the number for being in the section 0-1, can be used for characterizing water-proof tack coat 2
Damage status.
In conjunction with Fig. 4, the piezoelectric actuator 5 can be the drive of 15mm × 15mm × 15mm piezoelectric intelligent aggregate with preferred dimension
Dynamic device, packaging technology are as follows:
(1) one end of lead 15 is welded on the upper and lower surface of PZT piezoelectric ceramic piece 12, the other end is protruding, just
It is connect in signal wire 11；
(2) epoxy adhesive coating 16 admittedly is uniformly smeared fastly respectively in the upper and lower surface of PZT piezoelectric ceramic piece 12；
It (3) is that 15mm × 15mm × 7mm basalt stone 13 is pressed on PZT piezoelectric ceramic piece 12 respectively with two block sizes
Upper and lower surface realizes the integral sealing to PZT piezoelectric ceramic piece 12 by fast epoxy adhesive coating 16 admittedly.
Claims (5)
1. a kind of Steel Bridge Deck water-proof tack coat monitoring device based on piezoelectric transducer, comprising: steel bridge deck (1), water-proof binding
Layer (2), concrete pavement layer (3), it is characterised in that further include groove (4), piezoelectric actuator (5), piezoelectric transducer (6), letter
Number generator (7), power amplifier (8), data collecting instrument (9), data processing module (10), signal wire (11), signal wire
(12)；On the steel bridge deck (1), successively it is laid with water-proof tack coat (2) and concrete pavement layer (3), groove (4) is preset
On steel bridge deck (1), piezoelectric transducer (6) is placed in groove (4), and piezoelectric actuator (5) is pasted onto water-proof tack coat
(2) upper surface is spaced within 1 meter in the horizontal direction with piezoelectric transducer (6), then pours covering by concrete pavement layer (3)
It is fixed；Signal generator (7) is successively connect with power amplifier (8) and piezoelectric actuator (5) by signal wire (11), and piezoelectricity passes
Sensor (6) is sequentially connected data collecting instrument (9) and data processing module (10) by signal wire (12).
2. Steel Bridge Deck water-proof tack coat monitoring device as described in claim 1, it is characterised in that piezoelectric actuator (5) and piezoelectricity
Sensor (6) in the horizontal direction between be divided into 0.4 to 0.8 meter.
3. a kind of Steel Bridge Deck water-proof tack coat monitoring unit based on piezoelectric transducer, comprising: steel bridge deck (1), water-proof binding
Layer (2), concrete pavement layer (3), it is characterised in that further include groove (4), signal generator (7), power amplifier (8), number
According to Acquisition Instrument (9), data processing module (10), signal wire (11), signal wire (12), 2-5 Piezoelectric Driving sensor monitoring module
(13), wherein Piezoelectric Driving sensor monitoring module (13) is made of a piezoelectric transducer (6) and a piezoelectric actuator (5)；
On the steel bridge deck (1), be successively laid with water-proof tack coat (2) and concrete pavement layer (3), steel bridge deck it
Preset 2-5 groove (4) is gone up, the spacing between any two groove is maintained at 2 meters or more, is arranged identical as groove (4) quantity
Piezoelectric Driving sensor monitoring module (13), wherein the piezoelectric transducer (6) in each Piezoelectric Driving sensor monitoring module (13)
It is individually positioned in groove (4), the piezoelectric actuator (5) in Piezoelectric Driving sensor monitoring module (13) is pasted onto water-proof tack coat
(2) upper surface, with the piezoelectric transducer (6) of same module in the horizontal direction between be divided into 0.4 to 0.8 meter, then spread by concrete
Dress layer (3) pours covering and fixes；
Signal generator (7) is connect by signal wire (11) with power amplifier (8), then with each Piezoelectric Driving sensor monitoring module
(13) piezoelectric actuator (5) in is separately connected, and the piezoelectric transducer (6) in each Piezoelectric Driving sensor monitoring module (13) passes through
Signal wire (12) is sequentially connected data collecting instrument (9) and data processing module (10).
4. the monitoring method of water-proof tack coat monitoring device as described in claim 1, the steps include:
Step 1: signal generator (7) issues Gaussian pulse signal E1, E is enlarged into through power amplifier (8)2；
Step 2: piezoelectric actuator (5) receives E2Afterwards, stress wave is issued according to piezoelectric effect, is passed by water-proof tack coat (2)
To piezoelectric transducer (6)；
Step 3: piezoelectric transducer (6) is in time tiMoment issues original signal S after detecting stress wavei, through data collecting instrument
(9) after acquisition storage, by signal SiIt is sent to data processing module (10), data processing module (10) is to SiCarry out n-layer wavelet packet
It decomposes, common property raw 2nA subset, i.e.,Define Si,jFor original signal SiThrough n-layer wavelet packet decomposition
Subsignal on jth frequency band afterwards, it can be expressed as the form of all low-and high-frequency subband vectors of jth frequency band: Si,j=[xi,j,1,
xi,j,2,…,Si,j,m-1,Si,j,m], wherein i indicate obtain signal time, j indicate frequency band (j=1,2 ..., 2n-1,2n), m table
Show the hits of jth layer.Using Ei,jIndicate signal S after decomposingi,jEnergy, its calculation formula is:
Ei,j=| | Si,j||2 2=xi,j,1 2+xx,j,2 2+…+xi,j,m-1 2+xi,j,m 2, then time tiWhen signal SiEnergy vectors EiAre as follows:
Signal vector is E when definition water-proof tack coat (2) is intact0,With water-proof tack coat
Signal energy E when intact0On the basis of, the damage index I of water-proof tack coat (2) when defining time i are as follows:
Step 4: according to the definition of damage index I, when water-proof tack coat (2) keep good, Ei,jClose to E0,j, damage refers to
I is counted close to 0；When water-proof tack coat (2) is in collapse state, the signal energy that piezoelectric transducer (6) receives is very low, Ei,j
Close to 0, damage index I is close to 1 at this time；Therefore, damage index I is the number for being in the section 0-1, can be used for characterizing waterproof
The damage status of adhesive layer 2.
5. Steel Bridge Deck water-proof tack coat monitoring device as described in claim 1, it is characterised in that the piezoelectric actuator 5 can be with
Preferred dimension is 15mm × 15mm × 15mm piezoelectric intelligent aggregate driver, packaging technology are as follows:
Step 1: one end of lead 15 is welded on the upper and lower surface of PZT piezoelectric ceramic piece 12, the other end is protruding, just
It is connect in signal wire 11；
Step 2: uniformly smearing fastly epoxy adhesive coating 16 admittedly respectively in the upper and lower surface of PZT piezoelectric ceramic piece 12；
Step 3: being that 15mm × 15mm × 7mm basalt stone 13 is pressed on PZT piezoelectric ceramic piece 12 respectively with two block sizes
Upper and lower surface realizes the integral sealing to PZT piezoelectric ceramic piece 12 by fast epoxy adhesive coating 16 admittedly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810842598.7A CN109142521A (en) | 2018-07-27 | 2018-07-27 | Steel Bridge Deck water-proof tack coat monitoring device and method based on piezoelectric transducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810842598.7A CN109142521A (en) | 2018-07-27 | 2018-07-27 | Steel Bridge Deck water-proof tack coat monitoring device and method based on piezoelectric transducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109142521A true CN109142521A (en) | 2019-01-04 |
Family
ID=64799204
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810842598.7A Pending CN109142521A (en) | 2018-07-27 | 2018-07-27 | Steel Bridge Deck water-proof tack coat monitoring device and method based on piezoelectric transducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109142521A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110763563A (en) * | 2019-11-06 | 2020-02-07 | 东莞理工学院 | Research method of FRP rib bonding slippage relation based on Poisson effect |
| CN113029834A (en) * | 2021-03-12 | 2021-06-25 | 清华大学 | Detection method and system for FRP-concrete structure interface of fiber reinforced composite material |
| CN113552220A (en) * | 2021-08-13 | 2021-10-26 | 同济大学 | Reinforced concrete structure health monitoring system |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050087019A1 (en) * | 2003-10-24 | 2005-04-28 | Face Bradbury R. | Self-powered vibration monitoring system |
| EP2019322A1 (en) * | 2002-06-20 | 2009-01-28 | Panasonic Corporation | Piezoelectric element, ink jet head, angular velocity sensor, method for manufacturing the same, and ink jet recording apparatus |
| CN102024900A (en) * | 2010-10-29 | 2011-04-20 | 济南大学 | Piezoelectric sensor, beam type concrete sensor, and preparation methods and application thereof |
| EP2525218A1 (en) * | 2011-05-19 | 2012-11-21 | Hitachi-GE Nuclear Energy, Ltd. | Heat-resistant ultrasonic sensor and installation method thereof |
| CN103883076A (en) * | 2014-02-26 | 2014-06-25 | 长沙理工大学 | Intelligent hybrid composite FRP prestressed tendon based on piezoelectric ceramics and preparation method thereof |
| CN104406869A (en) * | 2014-12-04 | 2015-03-11 | 北京市道路工程质量监督站 | Method for evaluating repairing effect of steel bridge deck asphalt concrete pavement pit slot repairing interface |
| CN204389428U (en) * | 2015-02-03 | 2015-06-10 | 华中科技大学 | A kind of encapsulation of the marble for monitoring structural health conditions piezoelectric sensor |
| CN205067310U (en) * | 2015-09-23 | 2016-03-02 | 长沙理工大学 | Steel bridge deck and pavement layer interface shear test device |
| CN105891017A (en) * | 2016-06-28 | 2016-08-24 | 长沙理工大学 | Bridge deck pavement layer field shear test device and method |
| CN205847129U (en) * | 2016-08-01 | 2016-12-28 | 山西省交通科学研究院 | A kind of piezoelectricity road surface transducer architecture of high energy conversion rate |
| CN107632069A (en) * | 2017-09-29 | 2018-01-26 | 长安大学 | A kind of concrete beam strengthening steel sheet peeling off detecting system and detection method |
-
2018
- 2018-07-27 CN CN201810842598.7A patent/CN109142521A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2019322A1 (en) * | 2002-06-20 | 2009-01-28 | Panasonic Corporation | Piezoelectric element, ink jet head, angular velocity sensor, method for manufacturing the same, and ink jet recording apparatus |
| US20050087019A1 (en) * | 2003-10-24 | 2005-04-28 | Face Bradbury R. | Self-powered vibration monitoring system |
| CN102024900A (en) * | 2010-10-29 | 2011-04-20 | 济南大学 | Piezoelectric sensor, beam type concrete sensor, and preparation methods and application thereof |
| EP2525218A1 (en) * | 2011-05-19 | 2012-11-21 | Hitachi-GE Nuclear Energy, Ltd. | Heat-resistant ultrasonic sensor and installation method thereof |
| CN103883076A (en) * | 2014-02-26 | 2014-06-25 | 长沙理工大学 | Intelligent hybrid composite FRP prestressed tendon based on piezoelectric ceramics and preparation method thereof |
| CN104406869A (en) * | 2014-12-04 | 2015-03-11 | 北京市道路工程质量监督站 | Method for evaluating repairing effect of steel bridge deck asphalt concrete pavement pit slot repairing interface |
| CN204389428U (en) * | 2015-02-03 | 2015-06-10 | 华中科技大学 | A kind of encapsulation of the marble for monitoring structural health conditions piezoelectric sensor |
| CN205067310U (en) * | 2015-09-23 | 2016-03-02 | 长沙理工大学 | Steel bridge deck and pavement layer interface shear test device |
| CN105891017A (en) * | 2016-06-28 | 2016-08-24 | 长沙理工大学 | Bridge deck pavement layer field shear test device and method |
| CN205847129U (en) * | 2016-08-01 | 2016-12-28 | 山西省交通科学研究院 | A kind of piezoelectricity road surface transducer architecture of high energy conversion rate |
| CN107632069A (en) * | 2017-09-29 | 2018-01-26 | 长安大学 | A kind of concrete beam strengthening steel sheet peeling off detecting system and detection method |
Non-Patent Citations (2)
| Title |
|---|
| 唐婕: "《环保陶瓷生产与应用》", 31 January 2018, 中国建材工业出版社 * |
| 蒙彦宇: "《压电智能传感 驱动器力学性能及其应用》", 31 March 2016, 武汉大学出版社 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110763563A (en) * | 2019-11-06 | 2020-02-07 | 东莞理工学院 | Research method of FRP rib bonding slippage relation based on Poisson effect |
| CN113029834A (en) * | 2021-03-12 | 2021-06-25 | 清华大学 | Detection method and system for FRP-concrete structure interface of fiber reinforced composite material |
| CN113552220A (en) * | 2021-08-13 | 2021-10-26 | 同济大学 | Reinforced concrete structure health monitoring system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103852492B (en) | Pumping of prostressed duct density monitoring method based on piezoelectric ceramics | |
| US6301967B1 (en) | Method and apparatus for acoustic detection and location of defects in structures or ice on structures | |
| Monnier | Lamb waves-based impact damage monitoring of a stiffened aircraft panel using piezoelectric transducers | |
| Rizzo et al. | Ultrasonic guided waves for nondestructive evaluation/structural health monitoring of trusses | |
| CN109142521A (en) | Steel Bridge Deck water-proof tack coat monitoring device and method based on piezoelectric transducer | |
| CN103995051B (en) | Testing device and testing method for recognizing weld defects of orthotropic steel bridge deck slab | |
| KR102260598B1 (en) | System for evaluating internal damages of asphalt-concrete bridge-deck using air-coupled ultrasonics, and method for the same | |
| CN104374830A (en) | Near field phased array structure health monitoring method based on piezoelectric array | |
| Yu et al. | Multi-mode damage detection methods with piezoelectric wafer active sensors | |
| Chen et al. | Bolted joint looseness damage detection using electromechanical impedance measurements by PZT sensors | |
| Song et al. | Application of the piezoelectric materials for health monitoring in civil engineering: an overview | |
| CN107632069A (en) | A kind of concrete beam strengthening steel sheet peeling off detecting system and detection method | |
| Zhu et al. | Sensor array for the health monitoring of truss structures by means of guided ultrasonic waves | |
| CN207318399U (en) | A kind of beams of concrete damage monitoring system | |
| Park et al. | Impedance-based damage detection for civil infrastructures | |
| Giurgiutiu et al. | Embedded ultrasonics NDE with piezoelectric wafer active sensors | |
| Na et al. | Inspection of interfaces between corroded steel bars and concrete using the combination of a piezoelectric zirconate-titanate transducer and an electromagnetic acoustic transducer | |
| CN207198096U (en) | A kind of concrete beam strengthening steel sheet peeling off detecting system | |
| Jagadale et al. | Structural health monitoring using piezo-ceramics smart material | |
| Loi et al. | Damage detection in composite materials by flexural dynamic excitation and accelerometer-based acquisition | |
| Park et al. | A self-contained active sensor system for health monitoring of civil infrastructures | |
| JP3123380U (en) | Equipment for measuring embedded length of metal structures | |
| Giurgiutiu | Piezoelectric wafer active sensors for structural health monitoring: state of the art and future directions | |
| Chilibon | Acoustic Emission Sensing of Materials and Structures | |
| Yan et al. | Feasibility Research on Interface Debonding Detection in Concrete Filled Steel Tubular Columns Using PZT-Based Guided Waves |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190104 |
|
| RJ01 | Rejection of invention patent application after publication |