CN107490623A - Ultrasonic scanner and its detection method - Google Patents
Ultrasonic scanner and its detection method Download PDFInfo
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- CN107490623A CN107490623A CN201710847614.7A CN201710847614A CN107490623A CN 107490623 A CN107490623 A CN 107490623A CN 201710847614 A CN201710847614 A CN 201710847614A CN 107490623 A CN107490623 A CN 107490623A
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- 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
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- 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
- G01N29/22—Details, e.g. general constructional or apparatus details
- G01N29/223—Supports, positioning or alignment in fixed situation
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- 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
- G01N29/22—Details, e.g. general constructional or apparatus details
- G01N29/24—Probes
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- 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
- G01N2291/023—Solids
- G01N2291/0234—Metals, e.g. steel
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- 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
- G01N2291/26—Scanned objects
- G01N2291/267—Welds
- G01N2291/2675—Seam, butt welding
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
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- General Health & Medical Sciences (AREA)
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- Immunology (AREA)
- Pathology (AREA)
- Acoustics & Sound (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
The invention belongs to ultrasonic non-destructive inspection techniques field, it is related to a kind of ultrasonic scanner, it includes girder, arched arm, magnet-wheel mechanism, encoder and probe loading arm, girder includes long-armed, galianconism and the long-armed connector that the long-armed angle between galianconism can be simultaneously adjusted with galianconism of connection, and two ends of girder are respectively connected with arched arm；The both ends of arched arm are connected with magnet-wheel mechanism by linking arm respectively, and the encoder for recording distance is provided with arched arm；Magnet-wheel mechanism includes magnet pulley and demagnetization device, and linking arm can be adjusted to be fixed on the connecting arm positioned at the distance between the magnet pulley at arched arm both ends and angle, demagnetization device；Probe loading arm includes the second sliding block, loading arm and probe fixing bracket, and probe loading arm can be slided on girder length direction, and probe loading arm can be dismantled and changed.The present invention can realize the scanning to three kinds of straight weld, girth joint and angle welding weld seams simultaneously, and flexibility is good, and the degree of accuracy and reliability are high.
Description
Technical field
The invention belongs to ultrasonic non-destructive inspection techniques field, is related to a kind of ultrasonic scanner and its detection method.
Background technology
The side such as product quality detection of the Ultrasonic Nondestructive method in many industrial circles, equipment safety performance inspection
There is irreplaceable importance in face.With the development of non-destructive testing technology, ultrasound detection gradually to can be imaged, recordable side
To development.For important, complicated structural member, imageable advanced supersonic detection method such as ultrasonic phase array (PAUT) and ultrasound
Time difference diffraction approach (TOFD) increasingly becomes main flow detection method.And high-precision, portable, multiduty mechanical scanning device is to realize
The key components of engineering application, scanner are mainly used in clamping probe and moved in detection faces, realized to work to be checked
The high-precision ultrasound detection of part.Scanner at present mainly can three kinds of representative configurations of scanning：Flat board docking, the pipe pair of different curvature
Connect and the fillet welding crack structure of different angles, existing scanner can only be directed to one or two kinds of structure and carry out scanning at present,
And existing scanner design structure is universal more complicated, is not easy to dismantle and safeguards, it can not ensure that accurately scanning detects,
Limit its use under complex working conditions.
The content of the invention
In view of the shortcomings of the prior art, the present invention provides a kind of ultrasonic scanner and its detection method, can realize simultaneously
The scanning of three kinds of weld seams of angle welding of the straight weld of flat board docking, the circumferential weld of pipe docking and different angles, it uses modularization
Design, it is simple in construction, be easily installed adjustment and later maintenance, and simple operation, accuracy are high.
What the present invention was realized in：
A kind of ultrasonic scanner, it includes girder, arched arm, magnet-wheel mechanism, encoder and probe loading arm, the master
Beam includes long-armed, galianconism and connection is long-armed with the connector of galianconism, the connector be configured to adjust it is described it is long-armed with it is short
Angle between arm, the long-armed first side are provided with the first chute, and the long-armed second side is provided with the second chute, institute
The first end for stating connector is fixedly connected with the first end of the galianconism, and the second end of the connector is provided with the first sliding block,
The first sliding block clamping is entered first chute and can slided in first chute with rotating, the long-armed first end
Portion is provided with the block for preventing that the connector from sliding, and the second end of the long-armed the second end and the galianconism is respectively and fixedly provided with
The arched arm；The both ends of the arched arm are connected by linking arm with the magnet-wheel mechanism respectively, and the arched arm is connected with
The encoder for recording distance；The magnet-wheel mechanism includes magnet pulley and demagnetization device, the magnet pulley with it is described
The bottom of linking arm is hinged, the linking arm can adjust positioned at the distance between the magnet pulley at the arched arm both ends with
Angle, the demagnetization device are fixed on the linking arm；The probe loading arm includes the second sliding block, loading arm and is used for
Clamp the probe fixing bracket of probe.
Preferably, the loading arm include fixed arm, travelling arm and be connected arm and travelling arm flexible member and
Sliding equipment, the top of second sliding block are connected in second chute, the bottom of second sliding block by handle with
The fixed arm is connected, and the bottom of the travelling arm is connected with the probe fixing bracket, the elastic component and skate machine
Structure is configured to make probe to be fit together with workpiece to be checked.
Preferably, the straight beam that the girder is formed in one.
Preferably, the upper surface of the straight beam, described long-armed and galianconism upper surface are equipped with graduation mark, the straight beam
Side and lower surface are equipped with chute.
Preferably, the probe loading arm is the loading arm that can be changed.
Preferably, the linking arm is H type structures.
Preferably, the fixed arm is L-type structure.
Preferably, the length of the girder can extend, and the girder is provided with least one probe loading arm.
A kind of detection method using above-mentioned ultrasonic scanner, it comprises the following steps：
S1, according to the structure of workpiece to be checked choose girder and probe loading arm detected, specifically chosen mode is as follows：
1. when detecting flat board docking structure, long-armed and galianconism is adjusted to horizontality or is replaced by straight beam, chosen
Probe loading arm corresponding to ultrasonic phase array or ultrasonic time difference diffraction approach, scanning is carried out to straight weld；
2. when detection pipe docking structure, long-armed and galianconism is adjusted to horizontality or is replaced by straight beam, chosen super
Probe loading arm corresponding to sound phased array or ultrasonic time difference diffraction approach, scanning is carried out to girth joint；
3. when detecting angle welding structural member, the long-armed angle between galianconism is adjusted by rotating connector, makes it
It is consistent with angle welding angle, probe loading arm corresponding to ultrasonic phase array is chosen, scanning is carried out to angle welding；
S2, when detecting flat board docking structure, be adjusted to horizontality by long-armed with galianconism or be replaced by straight beam, will be super
Sound phased array probe or ultrasonic time difference diffraction approach probe are arranged on corresponding probe loading arm, and magnet pulley is adsorbed in workpiece to be checked
Surface, the elastic component and sliding equipment of adjustment probe loading arm make probe be bonded with workpiece to be checked, slide probe to straight weld
Scanning is carried out, after scanning, is removed from workpiece to be checked ultrasonic scanner using demagnetization device；
When detection pipe docking structure, long-armed and galianconism is adjusted to horizontality or is replaced by straight beam, utilizes connection
The distance between arm regulation magnet pulley adapts to the curvature of pipe docking structure with angle, by ultrasonic phase array probe or ultrasonic time difference
Diffraction approach probe is arranged on corresponding probe loading arm, and magnet pulley is adsorbed in workpiece surface to be checked, adjustment probe loading arm
Elastic component and sliding equipment make probe be bonded with workpiece to be checked, slide probe, and scanning is carried out to girth joint, after scanning,
Ultrasonic scanner is removed from workpiece to be checked using demagnetization device；
When detecting angle welding structural member, the long-armed angle between galianconism is adjusted by rotating connector, make its with
Angle welding angle is consistent, and ultrasonic phase array probe is arranged on probe loading arm, and magnet pulley absorption is in workpiece surface to be checked, tune
The elastic component and sliding equipment of whole probe loading arm make probe be bonded with workpiece to be checked, and the long-armed slip popped one's head in along girder is right
Angle welding carries out scanning, after scanning, is removed from workpiece to be checked ultrasonic scanner using demagnetization device.
Compared with prior art, the invention has the advantages that：
01 present invention can realize three kinds of straight weld, girth joint and angle welding simultaneously by the design of girder and arched arm
The scanning of weld seam, without changing scanner, simple operation, detection cycle is short, efficiency high；
2. the girder length of the present invention can extend, several different types of probe loading arms, Neng Goutong can be attached simultaneously
The scanning of a variety of ultrasonic methods of Shi Shixian, different dimension workpiece scannings can be achieved, practicality is stronger, and operation is more convenient；
3. the long-armed angle between galianconism can be adjusted, fillet welding crack structure that can be to different angles carries out scanning, positioning
Accurately, flexibility is good, shortens detection time, improves accuracy and reliability；
4. probe loading arm can be replaced, different types of probe can be loaded, a variety of supersonic detection methods can be realized, pacified
It is convenient to fill, simple to operate；
5. using modularized design, simple in construction, light weight is portable, can be applicable various complicated working conditions, and
It is easily installed adjustment and the maintenance and maintenance in later stage.
Brief description of the drawings
Fig. 1 is the structural representation of ultrasonic scanner of the present invention；
Fig. 2 is the structural representation of another embodiment of the present invention；
Fig. 3 is the structural representation of another embodiment of the present invention；
Fig. 4 is the schematic diagram of the probe loading arm of the present invention；And
Fig. 5 is the schematic diagram of the linking arm of the present invention.
Embodiment
Describe exemplary embodiment, feature and the aspect of the present invention in detail below with reference to accompanying drawing.Identical is attached in accompanying drawing
Icon note represents the same or analogous element of function.Although the various aspects of embodiment are shown in the drawings, unless special
Do not point out, it is not necessary to accompanying drawing drawn to scale.
As shown in figure 1, a kind of ultrasonic scanner, it includes girder 1, arched arm 2, magnet-wheel mechanism 3, encoder 4 and visited
Head loading arm 5, girder 1 includes long-armed 11, galianconism 12 and connection long-armed 11 and the connector 13 of galianconism 12, connector 13 configure
For adjusting the angle between long-armed 11 and galianconism 12, the angle between long-armed 11 and galianconism 12 is 0-180 °, long-armed 11 with it is short
The upper surface of arm 12 is equipped with graduation mark (not shown), and long-armed 11 first side is provided with the first chute, and the of long-armed 11
Two side faces are provided with the second chute, and the first end of connector 13 is fixedly connected with the first end of galianconism 12, and the second of connector 13
End is provided with the first sliding block, and the first sliding block clamping is entered the first chute and can slided in the first chute with rotating, the first of long-armed 11
End is provided with the block for preventing that connector 13 from sliding, and long-armed 11 the second end is respectively and fixedly provided with arc with the second end of galianconism 12
Arm 2.
The both ends of arched arm 2 are connected by linking arm 32 with magnet-wheel mechanism 3 respectively, arched arm 2 be connected with for record away from
From encoder 4.
Magnet-wheel mechanism 3 includes magnet pulley 31 and demagnetization device (not shown), and magnet pulley 31 is be hinged with linking arm 32,
As shown in figure 5, linking arm 32 is H type structures, the upper end of linking arm 32 is connected to arched arm 2, the bottom of linking arm 32 and magnetic
Wheel 31 is be hinged, and linking arm 32 can be adjusted positioned at the distance between the magnet pulley 31 at the both ends of arched arm 2 and angle, so as to realize pair
The scanning of the pipe docking structure of different curvature, demagnetization device are fixed on linking arm 32, and demagnetization device is configured to scanner
Removed from ferromagnetic workpiece surface without wearing workpiece.
Consolidate as shown in figure 4, probe loading arm 5 includes the second sliding block 51, loading arm 52 and the probe for clamping probe
Determine frame 53, loading arm 52 includes the flexible member of fixed arm 521, travelling arm 522 and be connected arm 521 and travelling arm 522
(not shown) and sliding equipment 523, the top of the second sliding block 51 are connected in the second chute, the bottom of the second sliding block 51
It is connected by handle 511 and fixed arm 521, fixed arm 521 is L-type structure, and travelling arm 522 can be relatively fixed arm 521 and slide
Dynamic, the bottom of travelling arm 522 is connected with probe fixing bracket 53, and being configured to of flexible member and sliding equipment 523 makes probe
More it is bonded with workpiece to be checked.Probe loading arm 5 can be changed according to the type of required probe.
Preferably, as shown in Figure 2,3, girder 1 can replace with integrally formed straight beam, and the upper surface of straight beam is provided with scale
Line, the side and lower surface of straight beam are equipped with chute.
Preferably, the first chute and the second chute are T-shaped chute.
Preferably, the length of girder 1 can extend, and girder 1 can subsidiary at least one probe loading arm 5.
The operation principle of the present invention is described further with reference to embodiments：
As shown in figure 1, girder 1 includes long-armed 11, galianconism 12 and connector 13, probe loading arm 5 clamps ultrasound phase-control
Battle array (PAUT) probe, the top of the second sliding block 51 of loading arm 5 of popping one's head in are connected in the second chute of long-armed 11 second side, visited
Head loading arm can slide along long-armed 11 length direction, so as to drive ultrasonic phase array (PAUT) to pop one's head in, complete to surpass weld seam
Sound scanning works.When long-armed 11 are horizontal with galianconism 12, the ultrasonic phase array (PAUT) that plate docking structure can be achieved is swept
Look into；The distance between the magnet pulley 31 at the both ends of arched arm 2 and angle are adjusted, adapts it to the curvature of pipe, pipe can be achieved to binding
Ultrasonic phase array (PAUT) scanning of structure；Simultaneously rotating connector 13 and galianconism 12 are slided, between regulation long-armed 11 and galianconism 12
Angle, ultrasonic phase array (PAUT) scanning of angle welding can be achieved.
In another embodiment, as shown in Fig. 2 the straight beam that girder 1 is formed in one, probe loading arm 5 clamp ultrasonic phase
Battle array (PAUT) probe is controlled, the top of the second sliding block 51 of loading arm 5 of popping one's head in is connected in the chute of straight beam side, loading arm of popping one's head in
5 can slide along the length direction of straight beam, and so as to drive ultrasonic phase array (PAUT) to pop one's head in, the ultrasonic phase of plate docking structure can be achieved
Control battle array (PAUT) scanning；The distance between the magnet pulley 31 at the both ends of arched arm 2 and angle are adjusted, adapts it to the curvature of pipe, can
Realize ultrasonic phase array (PAUT) scanning of pipe docking structure.
In another embodiment, as shown in figure 3, the straight beam that girder 1 is formed in one, when probe loading arm 5 clamps ultrasound
Poor diffraction approach (TOFD) probe, the top of the second sliding block 51 of loading arm 5 of popping one's head in are connected in the chute of straight beam lower surface, popped one's head in
Loading arm 5 can slide along the length direction of straight beam, and so as to drive ultrasonic time difference diffraction approach (TOFD) to pop one's head in, plate can be achieved to binding
Ultrasonic time difference diffraction approach (TOFD) scanning of structure；The distance between the magnet pulley 31 at the both ends of arched arm 2 and angle are adjusted, makes it suitable
Should pipe curvature, ultrasonic time difference diffraction approach (TOFD) scanning of pipe docking structure can be achieved.
To sum up, loading arm 5 of popping one's head in is interchangeable loading arm, the scanning of a variety of ultrasonic methods can be realized, for example, passing through
Probe loading arm 5 is changed so as to change probe, ultrasonic phase array (PAUT) and ultrasonic time difference diffraction approach (TOFD) etc. can be achieved and sweep
The conversion of checking method, without changing scanner；Angle between long-armed 11 and galianconism 12 can be adjusted, and can realize straight weldering simultaneously
The scanning of seam, girth joint and angle welding, it is easy to operate without changing scanner, it is time saving and energy saving；The length of girder 1 can be with
Extend, several different types of probe loading arms can be attached simultaneously, the scanning of a variety of ultrasonic methods can be realized simultaneously, can be achieved
The scanning of different dimension workpieces, practicality is stronger, and operation is more convenient.
Preferably, connected mode of the invention uses nut bolt or pin.
Preferably, the present invention is hand-held scanner, can also be designed as mechanical automatic scanning device as needed.
Finally it should be noted that：Above-described embodiments are merely to illustrate the technical scheme, rather than to it
Limitation；Although the present invention is described in detail with reference to the foregoing embodiments, it will be understood by those within the art that：
It can still modify to the technical scheme described in previous embodiment, or which part or all technical characteristic are entered
Row equivalent substitution；And these modifications or substitutions, the essence of appropriate technical solution is departed from various embodiments of the present invention technical side
The scope of case.
Claims (9)
1. a kind of ultrasonic scanner, it includes girder, arched arm, magnet-wheel mechanism, encoder and probe loading arm, its feature and existed
In：
The girder includes long-armed, galianconism and connection is long-armed and the connector of galianconism, the connector are configured to adjust institute
The long-armed angle between galianconism is stated, the long-armed first side is provided with the first chute, and the long-armed second side is provided with
Second chute, the first end of the connector are fixedly connected with the first end of the galianconism, and the second end of the connector is set
There is the first sliding block, the first sliding block clamping is entered first chute and can slided in first chute with rotating, described
Long-armed first end is provided with the block for preventing that the connector from sliding, the long-armed the second end and the second of the galianconism
End is respectively and fixedly provided with the arched arm；
The both ends of the arched arm are connected by linking arm with the magnet-wheel mechanism respectively, and the arched arm is connected with for recording
The encoder of distance；
The magnet-wheel mechanism includes magnet pulley and demagnetization device, and the bottom of the magnet pulley and the linking arm is hinged, described
Linking arm can be adjusted to be fixed positioned at the distance between the magnet pulley at the arched arm both ends and angle, the demagnetization device
On the linking arm；And
The probe loading arm includes the second sliding block, loading arm and the probe fixing bracket for clamping probe.
2. ultrasonic scanner according to claim 1, it is characterised in that：The loading arm include fixed arm, travelling arm with
And the flexible member and sliding equipment of be connected arm and travelling arm, the top of second sliding block are connected to second chute
Interior, the bottom of second sliding block is connected by handle and the fixed arm, the bottom of the travelling arm and the probe
Fixed mount connects, and the elastic component and sliding equipment are configured to make probe to be fit together with workpiece to be checked.
3. ultrasonic scanner according to claim 1, it is characterised in that：The straight beam that the girder is formed in one.
4. ultrasonic scanner according to claim 3, it is characterised in that：The upper surface of the straight beam, it is described it is long-armed with it is short
The upper surface of arm is equipped with graduation mark, and the side and lower surface of the straight beam are equipped with chute.
5. ultrasonic scanner according to claim 1, it is characterised in that：The probe loading arm is the loading that can be changed
Arm.
6. ultrasonic scanner according to claim 1, it is characterised in that：The linking arm is H type structures.
7. ultrasonic scanner according to claim 2, it is characterised in that：The fixed arm is L-type structure.
8. the ultrasonic scanner according to claim 1 or 3, body characteristicses are：The length of the girder can extend, described
Girder is provided with least one probe loading arm.
A kind of 9. detection method using the ultrasonic scanner as described in claim 1-8 is any, it is characterised in that：It includes following
Step,
S1, according to the structure of workpiece to be checked choose girder and probe loading arm detected, specifically chosen mode is as follows,
1. when detecting flat board docking structure, long-armed and galianconism is adjusted to horizontality or is replaced by straight beam, choose ultrasound
Probe loading arm corresponding to phased array or ultrasonic time difference diffraction approach, scanning is carried out to straight weld；
2. when detection pipe docking structure, long-armed and galianconism is adjusted to horizontality or is replaced by straight beam, chooses ultrasonic phase
Probe loading arm corresponding to battle array or ultrasonic time difference diffraction approach is controlled, realizes the scanning to girth joint；
3. when detecting angle welding structural member, the long-armed angle between galianconism is adjusted by rotating connector, makes itself and angle
Weld seam angle is consistent, chooses probe loading arm corresponding to ultrasonic phase array, and scanning is carried out to angle welding；
S2, when detecting flat board docking structure, be adjusted to horizontality by long-armed with galianconism or be replaced by straight beam, by ultrasonic phase
Control battle array probe or ultrasonic time difference diffraction approach probe is arranged on corresponding probe loading arm, magnet pulley is adsorbed in workpiece table to be checked
Face, the elastic component and sliding equipment of adjustment probe loading arm make probe be bonded with workpiece to be checked, slide probe and straight weld is entered
Row scanning, after scanning, ultrasonic scanner is removed from workpiece to be checked using demagnetization device；
When detection pipe docking structure, long-armed and galianconism is adjusted to horizontality or is replaced by straight beam, is adjusted using linking arm
The distance between section magnet pulley adapts to the curvature of pipe docking structure with angle, by ultrasonic phase array probe or ultrasonic time difference diffraction
Method probe is arranged on corresponding probe loading arm, and magnet pulley absorption is in workpiece surface to be checked, the elasticity of adjustment probe loading arm
Part and sliding equipment make probe be bonded with workpiece to be checked, slide probe, and scanning is carried out to girth joint, after scanning, utilize
Demagnetization device removes ultrasonic scanner from workpiece to be checked；
When detecting angle welding structural member, the long-armed angle between galianconism is adjusted by rotating connector, makes itself and fillet welding
It is consistent to stitch angle, ultrasonic phase array probe is arranged on probe loading arm, magnet pulley absorption is visited in workpiece surface to be checked, adjustment
The elastic component and sliding equipment of head loading arm make probe be bonded with workpiece to be checked, the long-armed slip popped one's head in along girder, to fillet welding
Seam carries out scanning, after scanning, is removed from workpiece to be checked ultrasonic scanner using demagnetization device.
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| CN108845027A (en) * | 2018-03-15 | 2018-11-20 | 宁波市特种设备检验研究院 | A kind of scanning equipment for the detection of plug-in type Nozzle weld |
| CN109084153A (en) * | 2018-09-13 | 2018-12-25 | 西安热工研究院有限公司 | A kind of T-type blade root slot phased array ultrasonic detection is with apart from angle controller |
| CN109541041A (en) * | 2019-01-28 | 2019-03-29 | 国电锅炉压力容器检验有限公司 | A kind of ultrasonic phase array plate detection system and its mobile limiting device of popping one's head in |
| CN109932430A (en) * | 2018-11-02 | 2019-06-25 | 国核电站运行服务技术有限公司 | Online ultrasound detection, which is inclined, puts adaptive concentricity adjustment mechanism and method of adjustment |
| CN110672720A (en) * | 2019-10-11 | 2020-01-10 | 浙江科技学院 | Portable welding seam TOFD ultrasonic detection device |
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| CN113325082A (en) * | 2021-07-29 | 2021-08-31 | 常州市建筑科学研究院集团股份有限公司 | Array type ultrasonic detection device for welding seam of prestressed pipe pile |
| CN113567563A (en) * | 2021-07-23 | 2021-10-29 | 安徽理工大学 | TOFD nondestructive testing system |
| CN113826009A (en) * | 2019-05-20 | 2021-12-21 | 三菱动力株式会社 | Ultrasonic inspection apparatus and inspection method |
| CN115184473A (en) * | 2022-07-21 | 2022-10-14 | 西安热工研究院有限公司 | Phased array cylindrical surface guided wave ultrasonic detection combined probe for T-shaped end face fastener |
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| CN112067693A (en) * | 2020-09-01 | 2020-12-11 | 南京咏诚工程科技有限公司 | Steel structure weld joint detection device and application method thereof |
| CN112067693B (en) * | 2020-09-01 | 2022-06-14 | 南京咏诚工程科技有限公司 | Steel structure weld joint detection device and application method thereof |
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| CN113567563A (en) * | 2021-07-23 | 2021-10-29 | 安徽理工大学 | TOFD nondestructive testing system |
| CN113325082A (en) * | 2021-07-29 | 2021-08-31 | 常州市建筑科学研究院集团股份有限公司 | Array type ultrasonic detection device for welding seam of prestressed pipe pile |
| CN115184473A (en) * | 2022-07-21 | 2022-10-14 | 西安热工研究院有限公司 | Phased array cylindrical surface guided wave ultrasonic detection combined probe for T-shaped end face fastener |
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