CN207440013U - A kind of transversal wave ultrasonic sensor array couples concrete slab failure detector - Google Patents
A kind of transversal wave ultrasonic sensor array couples concrete slab failure detector Download PDFInfo
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- CN207440013U CN207440013U CN201721559525.4U CN201721559525U CN207440013U CN 207440013 U CN207440013 U CN 207440013U CN 201721559525 U CN201721559525 U CN 201721559525U CN 207440013 U CN207440013 U CN 207440013U
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- ultrasonic sensor
- sensor array
- wave ultrasonic
- transversal wave
- cushion cap
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Abstract
The utility model discloses a kind of transversal wave ultrasonic sensor arrays to couple concrete slab failure detector, including the traction cushion cap being supported on by the support feet of bottom on workpiece to be checked, Multi-path synchronous ultrasonic instrument, with the draft gear for drive traction cushion cap movement, on the traction cushion cap installation through-hole is offered according to the requirement of transversal wave ultrasonic sensor array design, transversal wave ultrasonic sensor array element is mounted in the through hole and can be free to move axially, each transversal wave ultrasonic sensor array element is connected by signal transmssion line with the Multi-path synchronous ultrasonic instrument, the traction cushion cap is equipped with the rotation stop component for preventing that transversal wave ultrasonic sensor array element from circumferentially rotating, the probe of the transversal wave ultrasonic sensor array element is stretched out out of described through hole to be coupled with examined workpiece.The utility model is flexible detection device, each transversal wave ultrasonic sensor array element always with workpiece to be checked is good always couples, and can ensure the directionality of multisensor array motion synchronicity and sensor coupling.
Description
Technical field
The utility model belongs to the technical field of phased array supersonic non-destructive testing more particularly to a kind of transversal wave ultrasonic array passes
Sensor couples concrete slab failure detector.
Background technology
The reinforced concrete structures such as high-speed railway widely use, in prefabricated component or structure running body for a period of time it
Afterwards, it is necessary to finely be detected to hidden danger such as the in vivo leakiness of structure or cracks.It is opened using ultrasonic wave in concrete structure
It is many to open up the technical method of non-destructive testing, such as B ultrasound, transmitted wave method, Ultrasonic CT, ultrasonic phase array etc., wherein shear wave surpasses
Sound phased-array technique can focus on transversal wave ultrasonic wave field, and the transverse wave speed or damaged region feature provided in testing result are compared
Longitudinal wave is more directly perceived, precision is high, is the preferred method in high-precision ultrasonic structure detection, shear wave detection have energy it is strong, point
The features such as resolution is high has apparent detection advantage in structure non-destructive testing, is particluarly suitable for that ultrasonic attenuation is fast, penetration depth
It is used in limited concrete structure detection.As shear wave phased-array technique, typically one group of multiple transversal wave ultrasonic ripple is sensed
Device forms one linearly or face array, good couple state are the premises of high-resolution and detected with high accuracy concealed target.
There are slight uneven, rigid array sensor can not ensure each sensor coupling on concrete medium surface
Uniformity, independent magnet pedestal be suitble to metal medium surface carry out operation, be not suitable in the nonmetal mediums table such as concrete
Face, and be not easy to move freely, in practice, magnetic bases are also a kind of semirigid sensor fixed coupling mode.Cause
In concrete, the standalone sensor coupling when crude dielectric surface carries out ultrasound detection operation is extremely inconvenient for this, and standalone sensor exists
Dielectric surface can flexible couplings be the key that implement phased array detection in crude uneven dielectric surface;When need using shear wave pass
During sensor examinations operation, the coupling direction of multiple standalone sensors also needs to accurate direction under the premise of flexibility is fixed
Control.
Therefore in ultrasonic wave lossless detection field, particularly shear wave phased array detection field, there is an urgent need to have efficient biography
Sensor flexible couplings technology, on the one hand ensures the uniformity and quality of transverse wave sensor signal acquisition, while improves Collecting operation
Efficiency realizes detected with high accuracy.
Utility model content
It is suitable for the crude uneven, needs of dielectric surface the technical problem to be solved by the utility model is to provide one kind to use
The transversal wave ultrasonic sensor array coupling concrete slab failure detector that the polarizations ripple such as shear wave is detected.
In order to solve the above technical problems, a kind of transversal wave ultrasonic sensor array coupling concrete slab provided by the utility model
Failure detector, including be supported on by the support feet of bottom on workpiece to be checked traction cushion cap, Multi-path synchronous ultrasonic instrument, with
The connection of cushion cap front end is drawn for driving the draft gear of traction cushion cap movement, is sensed on the traction cushion cap according to transversal wave ultrasonic
The requirement of device Array Design offers installation through-hole, and transversal wave ultrasonic sensor array element is mounted in the through hole and axially free can move
Dynamic, each transversal wave ultrasonic sensor array element is connected by signal transmssion line with the Multi-path synchronous ultrasonic instrument, and the traction is held
Platform is equipped with the rotation stop component for preventing that transversal wave ultrasonic sensor array element from circumferentially rotating, the probe of the transversal wave ultrasonic sensor array element
It stretches out out of described through hole and is coupled with examined workpiece.
Further, the rotation stop component is that at least one piece be pasted and fixed on transversal wave ultrasonic sensor array element side wall is led
To block, the side wall of the through hole is equipped with the guide groove to match with the guide pad, and the guide pad Matching installation is described
In guide groove.
Further, the shape of the guide pad is wedge shape, rectangle or polygon.
Further, the traction cushion cap is made of rigid material.
Further, the support feet is made of stiffer wear-resistant material, and the support foot bottom is designed as towards traction side
To wedge shape or cutting edge shape.
Further, the support feet is traction wheel.
Further, traction cushion cap rear portion configuration is equipped with rudder.
Further, it is additionally provided on the traction cushion cap and acts on transversal wave ultrasonic sensor array element so that its probe is adjacent to and treats
Examine the elastic reaction pressue device of workpiece.
Further, the draft gear includes traction rope, capstan winch, range-measurement system, servomotor and Electric automatic control
System.
Above-mentioned concrete slab failure detector detection process includes the following steps:Traction cushion cap is placed on workpiece to be checked
On, the probe of transversal wave ultrasonic sensor array element is contacted with workpiece to be checked, and each transversal wave ultrasonic sensor array element passes through signal transmssion line
Multi-path synchronous ultrasonic instrument is connected to, gathers local ultrasound data in real time, when needing to detect other positions, draft gear is led
Draw traction cushion cap movement, workpiece other positions to be checked are examined so as to which each transversal wave ultrasonic sensor array element be driven to be synchronized with the movement
It surveys.
Compared with prior art, each transversal wave ultrasonic sensor array element of the utility model can be moved up and down freely, so as to treating
Inspection workpiece remains good couple state;Sensing is also ensured while ensure that multisensor array motion synchronicity
The directionality of device coupling, be particularly suitable for dielectric surface it is crude it is uneven, need to use the polarizations ripple such as shear wave and mutually carry out ultrasound examination
The field of operation.
Description of the drawings
The structure diagram of Fig. 1 the utility model;
Fig. 2 is that cushion cap top view is drawn in the utility model embodiment 1;
Fig. 3 is that cushion cap top view is drawn in the utility model embodiment 2.
Specific embodiment
The utility model is further described below in conjunction with the drawings and specific embodiments.
Embodiment 1
Referring to Fig. 1 and Fig. 2, by the use of the aluminium of thick 2cm areas 30cm*30cm as traction 1 raw material of cushion cap, according to 3*3 side
9 through holes and corresponding branch protecting groove position of the shape Array Design internal diameter with the big 1~2mm of sensor outer diameter, by wire cutting perforate, then lead to
It crosses wire cutting and forms a wedge-shaped branch protecting groove, extract the wedge-shaped aluminium of 9 obtained during branch protecting groove and mounted respectively as rotation stop component 3
In the side of 9 transversal wave ultrasonic sensor array element 2, ensure its correctly coupling direction;It is fixed on and held using 4 inverted trapezoidal sliding blocks
Four corners of platform bottom are as support feet 4.Support feet 4 is made of stiffer wear-resistant material, and bottom is designed as towards lead
Wedge shape or cutting edge shape.The concrete component 5 of required detection is high-speed railway rail harden structure, in surface of concrete structure detection operation
When, the transversal wave ultrasonic sensor array element 2 with rotation stop component 3 is freely seated in the through hole of pairing and can freely up and down move, only
Turn 3 Matching installation of component in corresponding wedge-shaped branch protecting groove, prevent transversal wave ultrasonic sensor array element 2 from circumferentially rotating, form pass more
Sensor array flexible suspension device.Multi-path synchronous ultrasonic instrument is connected, traction cushion cap 1, which utilizes, automates electric traction device
It pulls and advances, draft gear includes traction rope 6, capstan winch 7, range-measurement system 8, servomotor 9 and electronic automatic control system, control
Pace or distance are continuously detected concrete component 5 by phased-array technique, and the data of acquisition are carried out at signal
Reason and image are shown in due course, find hidden danger that may be present in concrete medium structure.
Embodiment 2
Referring to Fig. 1 and Fig. 3, ultrasonic sensor array flexible drawing cushion cap of a kind of four side all with square groove, for testing
Carry out Ultrasonic Examination in room.The fiber of long 20cm wide 10cm thickness 2cm is chosen as cushion cap material, reference implementation example
1, two placement transversal wave ultrasonic sensor array elements of four square groove positions of band respectively are cut out by wire cutting by designed hole position
Mounting hole, using cut off 2 groups when cutting mounting hole totally 8 small square material as the rotation stop group of two ultrasonic sensors
Part, is fixed on the surrounding of transversal wave ultrasonic sensor array element in the right direction, and four support feets made of traction wheel are fixed on
Four bottom corners of cushion cap are equipped with the traction rope with distance scale in the direction of advance of cushion cap, a rudder are installed in afterbody
10.It connects a hair one and receives Multi-path synchronous ultrasonic instrument, manually pull traction rope and pull ultrasonic sensor synchronously same
To mobile designed distance, the defects of concrete component hidden danger is progressively detected.To improve coupling ability, draw and be additionally provided on cushion cap
Transversal wave ultrasonic sensor array element is acted on so that its probe is adjacent to the elastic reaction pressue device of workpiece to be checked, such as spring, rubber
Deng guarantee sensor and the good couple state of detection faces.
Claims (9)
1. a kind of transversal wave ultrasonic sensor array couples concrete slab failure detector, it is characterised in that:Including the branch by bottom
Traction cushion cap that spike is supported on workpiece to be checked, Multi-path synchronous ultrasonic instrument are connected to drive with traction cushion cap front end
The draft gear of cushion cap movement is drawn, requires to offer installation according to transversal wave ultrasonic sensor array design on the traction cushion cap
Through hole, transversal wave ultrasonic sensor array element are mounted in the through hole and can be free to move axially, each transversal wave ultrasonic sensor array element
It is connected by signal transmssion line with the Multi-path synchronous ultrasonic instrument, the traction cushion cap, which is equipped with, prevents transversal wave ultrasonic from sensing
The rotation stop component that device array element circumferentially rotates, the probe of the transversal wave ultrasonic sensor array element stretch out and tested work out of described through hole
Part couples.
2. transversal wave ultrasonic sensor array according to claim 1 couples concrete slab failure detector, it is characterised in that:Institute
It is at least one piece of guide pad being pasted and fixed on transversal wave ultrasonic sensor array element side wall to state rotation stop component, the side wall of the through hole
The guide groove to match with the guide pad is equipped with, the guide pad Matching installation is in the guide groove.
3. transversal wave ultrasonic sensor array according to claim 2 couples concrete slab failure detector, it is characterised in that:Institute
The shape of guide pad is stated as wedge shape, rectangle or polygon.
4. transversal wave ultrasonic sensor array according to claim 1 couples concrete slab failure detector, it is characterised in that:Institute
Traction cushion cap is stated to be made of rigid material.
5. transversal wave ultrasonic sensor array according to claim 1 couples concrete slab failure detector, it is characterised in that:Institute
It states support feet to be made of stiffer wear-resistant material, the support foot bottom is designed as towards the wedge shape of lead or cutting edge shape.
6. transversal wave ultrasonic sensor array according to claim 1 couples concrete slab failure detector, it is characterised in that:Institute
Support feet is stated as traction wheel.
7. transversal wave ultrasonic sensor array according to claim 1 couples concrete slab failure detector, it is characterised in that:Institute
It states the configuration of traction cushion cap rear portion and rudder is installed.
8. transversal wave ultrasonic sensor array according to claim 1 couples concrete slab failure detector, it is characterised in that:Institute
It states to be additionally provided on traction cushion cap and acts on transversal wave ultrasonic sensor array element so that the elastic reaction that its probe is adjacent to workpiece to be checked adds
Pressure device.
9. transversal wave ultrasonic sensor array according to claim 1 couples concrete slab failure detector, it is characterised in that:Institute
Stating draft gear includes traction rope, capstan winch, range-measurement system, servomotor and electronic automatic control system.
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CN201721559525.4U CN207440013U (en) | 2017-11-21 | 2017-11-21 | A kind of transversal wave ultrasonic sensor array couples concrete slab failure detector |
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CN201721559525.4U CN207440013U (en) | 2017-11-21 | 2017-11-21 | A kind of transversal wave ultrasonic sensor array couples concrete slab failure detector |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113373746A (en) * | 2021-05-27 | 2021-09-10 | 高速铁路建造技术国家工程实验室 | Track slab detection vehicle |
-
2017
- 2017-11-21 CN CN201721559525.4U patent/CN207440013U/en active Active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113373746A (en) * | 2021-05-27 | 2021-09-10 | 高速铁路建造技术国家工程实验室 | Track slab detection vehicle |
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