CN106442731B - A kind of portable Lamb wave detection device - Google Patents
A kind of portable Lamb wave detection device Download PDFInfo
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- CN106442731B CN106442731B CN201611156641.1A CN201611156641A CN106442731B CN 106442731 B CN106442731 B CN 106442731B CN 201611156641 A CN201611156641 A CN 201611156641A CN 106442731 B CN106442731 B CN 106442731B
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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
- G01N29/041—Analysing solids on the surface of the material, e.g. using Lamb, Rayleigh or shear waves
-
- 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
- G01N29/26—Arrangements for orientation or scanning by relative movement of the head and the sensor
- G01N29/265—Arrangements for orientation or scanning by relative movement of the head and the sensor by moving the sensor relative to a stationary material
-
- 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
- G01N29/28—Details, e.g. general constructional or apparatus details providing acoustic coupling, e.g. water
-
- 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
-
- 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
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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
- G01N2291/04—Wave modes and trajectories
- G01N2291/042—Wave modes
- G01N2291/0427—Flexural waves, plate waves, e.g. Lamb waves, tuning fork, cantilever
-
- 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
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- Physics & Mathematics (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)
- Acoustics & Sound (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
The invention discloses a kind of portable Lamb wave detection devices, by probe, probe gripper, bindiny mechanism, walking mechanism, axial regulating mechanism, upper and lower adjustment mechanism at bindiny mechanism of the present invention can continuously adjust rack length according to detected specimen width；On the one hand axial regulating mechanism and upper and lower adjustment mechanism adjust driving wheel and driven wheel, even if also can guarantee the stabilized walking of detection device when detecting to the test specimen with complex geometry surface, on the other hand adjust probe and keep well contacting coupling with detected surface；Probe is popped one's head in using variable-angle, can excite the Lamb wave of different mode, in each scanning point, completes the detection of all weldqualities on two probe connecting lines；Walking mechanism drives entire detection device straight line walking, and the weldquality for completing tested test block whole region quickly detects.The present invention is realized to the real-time of weldquality, accurate quantification detection.
Description
Technical field
The present invention relates to a kind of portable Lamb wave detection devices, and it is lossless to be suitable for weld seam Lamb wave more particularly to one kind
Detection device.
Background technique
It welds as a kind of material processing method efficiently, economic, in recent years in rail traffic, aerospace, petroleum
The almost all of field of industrial manufacturing such as work is more and more widely used.Welding quality directly affect it is welded can
By the service performance of the even entire product of property, with the development of industrial technology, the safety and stability of people's welding quality
It also proposed more stringent and higher standard requirement.But welding process is complex, it is easy to be done by many factors
It disturbs, such as welding parameter fluctuation, welding misoperation, more serious weld crack, lack of penetration, incomplete fusion etc. can all be caused to weld
Defect is connect, the presence of these defects will be greatly reduced the reliability of weld seam, therefore welding quality quickly, reliably detect
It has a very important significance.
Traditional Welding quality test is butt-welding fitting or the welding assembly inspected by random samples is stretched, reversed, fatigue etc. is broken
The test of bad property, wastes a large amount of man power and material, even if in this way, still unavoidably existing not in the welded unit of real work
The security risk known.With the development of high quality, green manufacture technology, welding quality non-destructive testing is increasingly subject to scholars'
The ultrasonic C-scanning detection of concern, especially welding quality, is even more had a safety feature with it, detection range is wide, image-forming principle is simple
Singly, the advantages that imaging results are intuitive and reliable becomes research hotspot both domestic and external.
Conventional ultrasonic C-scanning detection mostly uses greatly normal beam technique, and probe is driven by two-dimensional scanning platform, needed each
Stepping node carries out the data acquisition of a ultrasonic longitudinal wave signal, completes all standing to entire welding region by preset track
Formula Scanning Detction obtains entire detection zone two-dimensional ultrasound signal matrix, then carries out subsequent ultrasonic signal processing by computer
And imaging, the final Scanning Detction for realizing welded unit.Obviously, mechanical scanning precision directly determines ultrasonic detection precision, still
Since mechanical scanning part is limited by machinery inertial and scanning response speed, mechanical part scanning speed is difficult to improve, because
This is difficult to combine detection accuracy and detection efficiency, especially in detection chemical industry equipment, rail passenger car body and medical instrument etc.
When the component of large size, detection efficiency is lower, therefore it is significantly limited in the application of industry.In addition, to meet the inspection of large-scale component
It surveys, two-dimensional scanning platform need to be sufficiently large, causes detection device complicated heavy, should not carry, this more limits its application.
Take a broad view of the above-mentioned state of the art, be badly in need of a kind of structure it is simple, it is convenient it is reliable, detection efficiency is high, practical welding
Quality ultrasound detection device.
Summary of the invention
The purpose of the present invention is to provide a kind of portable Lamb wave detection devices, which overcomes in the prior art
Deficiency, in each scanning point, completes all weldquality (welderings on two probe connecting lines by exciting the Lamb wave of different mode
Slit width degree, welding defect etc.) detection, improve detection efficiency, while can be according to detected piece lengths, thickness, surface curvature
Real-time adjustment is made, is realized to the real-time of weldquality, accurate quantification detection.
Above-mentioned purpose of the invention is achieved through the following technical solutions：Probe, probe gripper, bindiny mechanism, walking mechanism,
Axial regulating mechanism, upper and lower adjustment mechanism are constituted；
The probe includes ultrasound emission probe and ultrasonic reception probe, and ultrasound emission is popped one's head in and ultrasonic reception probe point
Not Tong Guo the first screw and probe gripper be connected；Ultrasound emission probe and ultrasonic reception probe are popped one's head in using variable-angle, can be with
Excitation and the Lamb wave for receiving different mode, (weld seam is wide for all weldqualities on each scanning point, two probe connecting lines of completion
Degree, welding defect etc.) detection；
The probe gripper upper end and primary optic axis is connected, and two sides are realized and the first fixed bracket, second by slide bar
It is support bracket fastened to be slidably connected；
The bindiny mechanism includes the first rack, the second rack, third rack；Wherein, the first rack passes through left and right two
First pin of side, the realization of the first sliding rail are slidably connected with the second rack, and pass through the fixation of the first locking knob and the second rack
Between position, the mode that the first pin is connected through a screw thread with the first rack is connected；Second rack passes through the second of upper and lower two sides
Pin, the realization of the second sliding rail are slidably connected with third rack, and fix the position between third rack by the second locking knob
It sets, the mode and the second rack that the second pin is connected through a screw thread are connected；
The walking mechanism includes motor, driving wheel, front driven wheel and back front driven wheel；Wherein, motor is uniformly distributed by four
Soket head cap screw be fixed on the fixed bracket of third, and drive driving wheel to rotate by first axle connection；Second axis and second
Fixed bracket is connected, and front driven wheel and back front driven wheel is driven to rotate, and front driven wheel and back front driven wheel and driving wheel cooperate, and realizes
The walking of entire detection device；
The axial regulating mechanism includes third fixed bracket, fixing seat, connecting rod, sliding connector；Wherein, third is solid
Fixed rack is connect by third axis with the first gantry rotation；Fixing seat is connected by the second screw of two sides and the first rack；Even
Bar and sliding connector are connected, and pass through the sliding of sliding connector and sliding slot, realize and third is support bracket fastened is slidably connected,
Achieve the purpose that the fixed bracket of third around the first gantry rotation；By screwing for third locking knob, connecting rod and fixing seat are determined
Relative position, realize the fixation of the fixed holder pivots angle of third, no matter complete in detection flat test piece or curved surface test specimen
When, entire detection device is adjusted axially effect；
The upper and lower adjustment mechanism include the 4th fixed bracket, the first fixed bracket, the second fixed bracket, the first adjusting
Spring, the second adjustment spring, slide bar, primary optic axis, the second optical axis；Wherein, the 4th fixed bracket is solid by the 4th axis and third
Fixed rack is connected, and can select the first adjustment hole or the second adjustment hole or more coarse adjustment regulating mechanism according to the plate thickness of detected member
Position；First fixed bracket is mounted on the 4th fixed bracket by four bolts；The fixed bracket of slide bar, the second optical axis and second
It is fixedly connected, is connect with the first fixed bracket slide, realize front driven wheel, back front driven wheel, ultrasound emission probe and ultrasonic reception
Probe can be moved up and down with the fluctuation of detected surface of test piece height in real time；First adjustment spring is arranged by primary optic axis
Between probe gripper and the first fixed bracket；Two the second adjustment springs pass through the second optical axis respectively and are arranged in the second fixed branch
Between frame and the first fixed bracket；First adjustment spring and the second adjustment spring finely tune front driven wheel, back front driven wheel, ultrasound up and down
While transmitting probe and ultrasonic reception are popped one's head in, it is ensured that even if ultrasound emission is visited in the test specimen detection to complex geometry surface
Head and ultrasonic reception probe can also keep good coupling with detected surface, realize the adaptive scanning detection of detection device；
The bindiny mechanism can continuously adjust rack length according to detected specimen width；
Probe gripper, bindiny mechanism, walking mechanism, axial regulating mechanism and the equal axial symmetry of upper and lower adjustment mechanism point
Whole device two sides are distributed in, centre is fixedly connected by connector by two third screws.
The beneficial effects of the invention are as follows：
1) overall structure is simple and compact, convenient reliable, continuously adjustable rack length, suitable within the scope of one fixed width
The application range of detection device has significantly been widened in welded unit quality testing；
2) regulating mechanism can adjust probe and driven wheel position in real time, even if to the test specimen with complex geometry surface
When detection, it also can guarantee that detection process is stablized, realize surface self-adaptive Scanning Detction, eliminate interference from human factor, repeat
Property and detection accuracy are relatively high；
3) ultrasonic probe is popped one's head in using variable-angle, can excite the Lamb wave of different mode, in each scanning point, is completed
The detection of all weldqualities (weld width, welding defect etc.), detection efficiency are high on two probe connecting lines；
4) detection device only needs to carry out a straight line walking, and the quick detection of the weldquality of whole region can be completed,
It truly realizes to the real-time of weldquality, accurate quantification detection.
Detailed description of the invention
Fig. 1 is stereoscopic schematic diagram of the invention.
Fig. 2 is side view of the invention.
Fig. 3 is the flat test piece detection stereoscopic schematic diagram of the embodiment of the present invention.
Fig. 4 is the side view of Fig. 3.
Fig. 5 is the half sectional view of the present apparatus.
Fig. 6 is the curved surface test specimen detection schematic diagram of the embodiment of the present invention.
Wherein：1-ultrasound emission probe；2-the first screw；3-first axles；4-ultrasonic receptions probe；5-probe clips
Tool；6-driving wheels；7-soket head cap screws；8-the second fixed bracket；9-the first fixed bracket；10-the four fixed bracket；
11-bolts；12-motors；13-the first rack；14-the first locking knob；15-the second rack；16-the second locking rotating
Button；17-third racks；18-sliding slots；19-connecting rods；20-third axis；21-fixing seats；22-third locking knobs；23—
Second screw；24-the four axis；25-the first adjustment hole；26-back front driven wheels；27-the second adjustment hole；The fixed branch of 28-thirds
Frame；29-the first pin；30-the first sliding rail；31-the second pin；32-the second sliding rail；33-third screws；34-primary optic axis；
35-the first adjustment spring；36-slide bars；37-the second axis；38-front driven wheels；39-flat test pieces；40-are slidably connected
Part；41-weld seams；42-curved surface test specimens；43-the second optical axis；44-the second adjustment spring；45-connectors.
Specific embodiment
It please refers to shown in Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5 and Fig. 6, the present embodiment includes probe, probe gripper 5, connection
Mechanism, walking mechanism, axial regulating mechanism, upper and lower adjustment mechanism；
The probe includes ultrasound emission probe 1 and ultrasonic reception probe 4, and ultrasound emission probe 1 and ultrasonic reception are visited
First 4 are connected by the first screw 2 with probe gripper 5 respectively；Ultrasound emission probe 1 and ultrasonic reception probe 4 use variable-angle
Probe, can excite and receive the Lamb wave of different mode, in each scanning point, complete all weld seams 41 on two probe connecting lines
The detection of quality (weld width, welding defect etc.)；
5 upper end of probe gripper and primary optic axis 34 is connected, and two sides are realized and the first fixed bracket by slide bar 36
9, second being slidably connected for bracket 8 is fixed；
The bindiny mechanism includes the first rack 13, the second rack 15, third rack 17；Wherein, the first rack 13 is logical
Cross the first pin 29 of the left and right sides, the realization of the first sliding rail 30 is slidably connected with the second rack 15, and passes through the first locking knob
The mode that the 14 fixed positions between the second rack 15, the first pin 29 and the first rack 13 are connected through a screw thread is connected；Second
Rack 15 is realized by the second pin 31 of upper and lower two sides, the second sliding rail 32 and is slidably connected with third rack 17, and passes through second
The fixed position between third rack 17 of locking knob 16, the mode and the second rack 15 that the second pin 31 is connected through a screw thread are solid
Even；
The walking mechanism includes motor 12, driving wheel 6, front driven wheel 38 and back front driven wheel 26；Wherein, motor 12 by
Four uniformly distributed soket head cap screws 7 are fixed on the fixed bracket 28 of third, and drive driving wheel 6 to rotate by the connection of first axle 3；
Second axis 37 and the second fixed bracket 8 are connected, and front driven wheel 38 and back front driven wheel 26 is driven to rotate, front driven wheel 38 and after from
Driving wheel 26 and driving wheel 6 cooperate, and realize the walking of entire detection device；
The axial regulating mechanism includes third fixed bracket 28, fixing seat 21, connecting rod 19, sliding connector 40；Its
In, the fixed bracket 28 of third is rotatablely connected by third axis 20 and the first rack 13；Fixing seat 21 passes through the second screw of two sides
23 and first rack 13 be connected；Connecting rod 19 and sliding connector 40 are connected, and pass through the sliding of sliding connector 40 and sliding slot 18,
It realizes and fixes being slidably connected for bracket 28 with third, achieve the purpose that the fixed bracket 28 of third is rotated around the first rack 13；Pass through
Third locking knob 22 screws, and determines the relative position of connecting rod 19 Yu fixing seat 21, realizes fixed 28 angle of rotation of bracket of third
The fixation of degree is completed no matter when detecting flat test piece 39 or curved surface test specimen 42, and entire detection device is adjusted axially effect；
The upper and lower adjustment mechanism include the 4th fixed bracket 8, first of the fixed fixed bracket 9, second of bracket 10, first
Adjustment spring 35, the second adjustment spring 44, slide bar 36, primary optic axis 34, the second optical axis 43；Wherein, the 4th fixed bracket 10 is logical
It crosses the 4th axis 24 to be connected with the fixed bracket 28 of third, the first adjustment hole 25 or second can be selected to adjust according to the plate thickness of detected member
The position of about 27 coarse adjustment regulating mechanism of knothole；First fixed bracket 9 is mounted on the 4th fixed bracket 10 by four bolts 11
On；Slide bar 36, the second optical axis 43 are fixedly connected with the second fixed bracket 8, are slidably connected with the first fixed bracket 9, before realizing from
Driving wheel 38, back front driven wheel 26, ultrasound emission probe 1 and ultrasonic reception probe 4 can be in real time with detected surface of test piece height
It fluctuates and moves up and down；First adjustment spring 35 by primary optic axis 34 be arranged in probe gripper 5 and the first fixed bracket 9 it
Between；Two the second adjustment springs 44 respectively by the second optical axis 43 be arranged in the second fixed bracket 8 and the first fixed bracket 9 it
Between；First adjustment spring 35 and the second about 44 adjustment spring fine tuning front driven wheel 38, back front driven wheel 26, ultrasound emission probe 1
While with ultrasonic reception probe 4, it is ensured that even if in the test specimen detection to complex geometry surface, ultrasound emission probe 1 and super
Sound reception probe 4 can also keep good coupling with detected surface, realize the adaptive scanning detection of detection device；
The bindiny mechanism can continuously adjust rack length according to detected specimen width；
Probe gripper, bindiny mechanism, walking mechanism, axial regulating mechanism and the equal axial symmetry of upper and lower adjustment mechanism point
Whole device two sides are distributed in, centre is fixedly connected by connector 45 by two third screws 33.
Claims (3)
1. a kind of portable Lamb wave detection device, it is characterised in that：It include probe, probe gripper (5), bindiny mechanism, row
Walk mechanism, axial regulating mechanism and upper and lower adjustment mechanism；
The probe includes that ultrasound emission probe (1) and ultrasonic reception are popped one's head in (4), ultrasound emission probe (1) and ultrasonic reception
Probe (4) is connected by the first screw (2) and probe gripper (5) respectively；Ultrasound emission is popped one's head in (1) and ultrasonic reception probe (4)
It is popped one's head in using variable-angle, can excite and receive the Lamb wave of different mode, in each scanning point, completed on two probe connecting lines
The detection of all weld seam (41) quality；
Probe gripper (5) upper end and primary optic axis (34) is connected, and two sides are realized and the first fixed branch by slide bar (36)
Frame (9), second fix being slidably connected for bracket (8)；
The bindiny mechanism includes the first rack (13), the second rack (15), third rack (17)；Wherein, the first rack
(13) it is slidably connected, and passed through with the second rack (15) by the first pin (29) of the left and right sides, the first sliding rail (30) realization
The fixed position between the second rack (15) of first locking knob (14), the first pin (29) and the first rack (13) pass through screw thread
The mode of connection is connected；Second rack (15) is realized and third machine by the second pin (31), the second sliding rail (32) of upper and lower two sides
Frame (17) are slidably connected, and pass through the second locking knob (16) the fixed position between third rack (17), the second pin
(31) mode being connected through a screw thread and the second rack (15) are connected；
The walking mechanism includes motor (12), driving wheel (6), front driven wheel (38) and back front driven wheel (26)；Wherein, motor
(12) it is fixed on third fixed bracket (28) by four uniformly distributed soket head cap screws (7), and is driven by first axle (3) connection
Driving wheel (6) rotation；Second axis (37) is connected with second fixed bracket (8), and drives front driven wheel (38) and back front driven wheel
(26) it rotates, front driven wheel (38) and back front driven wheel (26) and driving wheel (6) cooperate, and realize the walking of entire detection device；
The axial regulating mechanism includes third fixed bracket (28), fixing seat (21), connecting rod (19), sliding connector
(40)；Third fixed bracket (28) is rotatablely connected by third axis (20) and the first rack (13)；Fixing seat (21) passes through two sides
The second screw (23) and the first rack (13) be connected；Connecting rod (19) and sliding connector (40) are connected, and by being slidably connected
The sliding of part (40) and sliding slot (18) is realized and fixes being slidably connected for bracket (28) with third, and it is fixed bracket (28) to reach third
Around the purpose of the first rack (13) rotation；By screwing for third locking knob (22), connecting rod (19) and fixing seat (21) are determined
Relative position, realize the fixation of fixed bracket (28) rotational angle of third, complete no matter in detection flat test piece (39) or
When curved surface test specimen (42), entire detection device is adjusted axially effect；
The upper and lower adjustment mechanism include the 4th fixed bracket (10), first fixed bracket (9), second fixed bracket (8), the
One adjustment spring (35), the second adjustment spring (44), slide bar (36), primary optic axis (34), the second optical axis (43)；Wherein, the 4th
Fixed bracket (10) are connected by the 4th axis (24) and third fixed bracket (28), can select the according to the plate thickness of detected member
The position of one adjustment hole (25) or the second adjustment hole (27) coarse adjustment regulating mechanism up and down；First fixed bracket (9) pass through four spiral shells
Bolt (11) is mounted on the 4th fixed bracket (10)；Slide bar (36), the second optical axis (43) and the fixed company in second fixed bracket (8)
Connect, be slidably connected with first fixed bracket (9), realize front driven wheel (38), back front driven wheel (26), ultrasound emission probe (1) and
Ultrasonic reception probe (4) can be moved up and down with the fluctuation of detected surface of test piece height in real time；First adjustment spring (35)
It is arranged between probe gripper (5) and first fixed bracket (9) by primary optic axis (34)；Two the second adjustment springs (44) point
Not Tong Guo the second optical axis (43) be arranged between second fixed bracket (8) and the first fixation bracket (9)；First adjustment spring (35)
Finely tune front driven wheel (38), back front driven wheel (26), ultrasound emission probe (1) and ultrasonic reception up and down with the second adjustment spring (44)
While probe (4), it is ensured that even if in the test specimen detection to complex geometry surface, ultrasound emission probe (1) and ultrasonic reception
Probe (4) can also keep good coupling with detected surface, realize the adaptive scanning detection of detection device.
2. a kind of portable Lamb wave detection device according to claim 1, it is characterised in that：Bindiny mechanism's energy
According to detected specimen width, rack length is continuously adjusted.
3. a kind of portable Lamb wave detection device according to claim 1, it is characterised in that：The probe gripper,
Bindiny mechanism, walking mechanism, axial regulating mechanism and the equal axial symmetry of upper and lower adjustment mechanism are distributed in whole device two sides, and centre is logical
Connector (45) are crossed, are fixedly connected by two third screws (33).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611156641.1A CN106442731B (en) | 2016-12-15 | 2016-12-15 | A kind of portable Lamb wave detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611156641.1A CN106442731B (en) | 2016-12-15 | 2016-12-15 | A kind of portable Lamb wave detection device |
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| CN106442731A CN106442731A (en) | 2017-02-22 |
| CN106442731B true CN106442731B (en) | 2018-11-27 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109470721B (en) * | 2018-06-08 | 2020-11-03 | 中国科学院南京土壤研究所 | Soil detection device and soil water content and volume weight detection method |
| CN211491186U (en) * | 2019-12-20 | 2020-09-15 | 江苏科泰检测技术服务有限公司 | Welding seam detection positioning fixture |
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| CN101915808A (en) * | 2010-07-22 | 2010-12-15 | 中国特种设备检测研究院 | Ultrasonic inspecting and scanning device of welding line |
| CN202649174U (en) * | 2012-06-27 | 2013-01-02 | 科兰世检测技术(北京)有限公司 | Specialized scanning device for gantry structure U-shape ribbed plate |
| CN103616438A (en) * | 2013-12-13 | 2014-03-05 | 北京航天益森风洞工程技术有限公司 | Thick-wall adapter tube weld joint ultrasonic testing device |
| CN103822970A (en) * | 2014-03-05 | 2014-05-28 | 吉林大学 | Portable full automatic resistance spot welding ultrasonic detecting instrument and detecting method |
| CN103852524A (en) * | 2014-03-26 | 2014-06-11 | 深圳市神视检验有限公司 | Automatic scanning device for ultrasonic wave detection |
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