CN107102067A - Ultrasonic examination sensor with weak rigid measurement head - Google Patents
Ultrasonic examination sensor with weak rigid measurement head Download PDFInfo
- Publication number
- CN107102067A CN107102067A CN201710437784.8A CN201710437784A CN107102067A CN 107102067 A CN107102067 A CN 107102067A CN 201710437784 A CN201710437784 A CN 201710437784A CN 107102067 A CN107102067 A CN 107102067A
- Authority
- CN
- China
- Prior art keywords
- head
- weak
- probing shell
- auxiliary head
- sensor body
- 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.)
- Granted
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
- G01N29/22—Details, e.g. general constructional or apparatus details
-
- 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
Landscapes
- 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)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
The present invention relates to a kind of ultrasonic examination sensor with weak rigid measurement head, auxiliary head, probing shell, sensor body are measured by weak rigidity to constitute, probing shell front portion is equipped with weak rigidity measurement auxiliary head, rear portion is equipped with sensor body, it is tightly connected between weak rigidity measurement auxiliary head and sensor body and probing shell, fluid couplant is injected with probing shell；The front end of the weak rigidity measurement auxiliary head is auxiliary head test section, auxiliary head test section, which has, can follow testee surface progress Flexible change to go out sphere head with the flexible dimpling followed, V-type portion is provided with behind sphere head, end is provided with the conical surface, the conical surface and offers liquid entrance.The present invention utilizes the weak rigidity characteristics on its head, so that it is possible to prevente effectively from rigid head portion runs into the phenomenon that the state of testee surface imperfection or out-of-flatness can not be coupled normally in detection process during detection, and then realize that ultrasonic wave is effectively penetrated inside measurand, complete defects detection.
Description
Technical field
The present invention relates to a kind of ultrasonic examination sensor, especially a kind of internal loopback formula ultrasonic examination sensor,
Belong to ultrasonic detecting technology field.
Background technology
Internal loopback formula ultrasonic examination is the heterogeneous combination interface through measured medium in media as well using ultrasonic wave
The feature of reflection echo is produced to detect a kind of method of defect.When ultrasonic wave is penetrated to material internal from measurand surface,
Back wave can be produced respectively when running into defect or measurand outer surface, it is special according to the wave character of these reflection configurations and position
Levy and can determine whether defect size and the position apart from measured surface.This method can it is quick, lossless, accurately realize inside workpiece
The detection of number of drawbacks (crackle, be mingled with, fold, stomata, sand holes etc.), positioning, assess and diagnose.
Such as patent publication No. CN101153862A, a kind of ultrasonic testing apparatus for turbine forks and method, turbine fork are disclosed
Inspection can be carried out by magnetic powder inspection, but because needing to decompose movable vane piece and disk so the problem of needing the time in the presence of inspection.Once
The inspection by ultrasonic examination is attempted, but because pronged shape is complicated, so in the presence of the ultrasound for being difficult to the concavo-convex reflection by pitching
The problem of ripple (shape echo) and ultrasonic wave (flaw indication) by defect reflection.The free degree that sensor is moved is limited to rotation
Transfer is dynamic and moves in parallel, will for can quantitative assessment amount of movement add graduated ultrasonic examination sensor setting fixture
It is fixed on zero defect and with check object with obtaining shape echo on the reference test piece of size.Mounting ultrasonic flaw detection sensing
Device sets fixture, and identical position when ultrasonic sensor is arranged on and obtained shape signal obtains and compares ultrasonic wave spy
Wounding signal, thus, ultrasonic wave (flaw indication) is whether there is to evaluate.
Under normal circumstances, requirement of the ultrasonic examination to measurand surface state is higher, mainly surface configuration, surface
The requirement to detection method and detection sensor such as percent ripple, surface roughness is not quite similar.In practical engineering application often
Testee surface imperfection or surface extremely coarse state can be run into, ultrasonic examination is now utilized, it may appear that sensing
The phenomenon that device can not be coupled with measured surface.Generally require to be studied and implemented by other technological means.Problems exist
It is confirmed in terms of Patents technical research, engineer applied.And the technology of the application can efficiently solve problems,
Drastically increase the application and detection efficiency of ultrasonic examination technology.
The content of the invention
The present invention is to provide for a kind of ultrasonic examination sensor with weak rigid measurement head, utilizes the weak firm of its head
Property characteristic so that it is possible to prevente effectively from rigid head portion runs into testee surface imperfection or injustice in detection process during detection
The phenomenon that whole state can not be coupled normally, and then realize that ultrasonic wave is effectively penetrated inside measurand, complete defects detection.
To achieve the above object, the technical scheme is that：A kind of ultrasonic examination with weak rigid measurement head is passed
Sensor, measures auxiliary head, probing shell, sensor body by weak rigidity and constitutes, and probing shell front portion is auxiliary equipped with weak rigidity measurement
Head is helped, rear portion is equipped with sensor body, weak rigidity measurement auxiliary head rear end connection sensor body, and weak rigidity measurement auxiliary head
It is tightly connected between sensor body and probing shell, fluid couplant is injected with probing shell；The weak rigidity measurement
The front end of auxiliary head is auxiliary head test section, and the auxiliary head test section, which has, can follow testee surface to carry out Flexible change
The dimpling followed with flexibility, which goes out, is provided with V-type portion behind sphere head, sphere head, the V-type portion is used to undertake along detection direction
Elastic deformation, can subsidiary sphere head follow testee surface to carry out Flexible change to follow, and all the time exist with flexibility
Certain elastic pressure along detection direction is produced when being adjacent to testee surface；The end of the weak rigidity measurement auxiliary head is provided with
Liquid entrance is offered on the conical surface, the conical surface, the fluid couplant in probing shell is introduced by weak rigidity by liquid entrance
Measure in auxiliary head, operationally, the weak rigidity measurement auxiliary head of extruded fluid couplant discharge is entered in probing shell.
The centre of the weak rigidity measurement auxiliary head is provided with auxiliary head and probing shell connecting portion, auxiliary head and probing shell
Connecting portion is indent cyclic structure, and be connected cooperation with probing shell, together with being sealedly and fixedly connected with probing shell, is prevented
Only fluid couplant is leaked out.
Provided with auxiliary head and sensor body connecting portion, auxiliary behind the end conical surface of the weak rigidity measurement auxiliary head
Head is drum-shaped with sensor body connecting portion rear end, and is tightly placed in sensor body and auxiliary head connecting portion.
The material of the weak rigidity measurement auxiliary head is far below the rigid flexible material of steel material, for bent with complexity
Face is fully coupled, and sphere head section thickness is less than V-type portion, auxiliary head and probing shell connecting portion, auxiliary head and sensor sheet
The section thickness of body connecting portion, the preferential deformation in sphere head during coupling, and be adjacent to all the time and identical testee surface.
Connected between the probing shell and sensor body by fine thread, the sensor body is provided with sensing
Device body and elastic sealing gasket connecting portion and sensor convex shoulder, sensor body and elastic sealing gasket connecting portion and sensor
Connected between convex shoulder and probing shell by elastic sealing gasket.
The material of the probing shell is 304 stainless steels, and the probing shell is provided with liquid filling hole, for injecting and supplementing
Fluid couplant, and sealed with gag.
The material of the elastic sealing gasket is elaxtic seal, for preventing fluid couplant to leaking out.
The sensor body is using conventional or special straight beam method head body.
The beneficial effects of the invention are as follows：
1st, meet irregular surface direct-coupling flaw detection, overcome rigid probe can not direct-coupling detection situation.
2nd, heavy polished with highly difficult surface and processing need not be carried out in measured surface.
3rd, various weld seams, such as face bonding, fillet welding, circular arc weldering are adapted to.Dedicated probe need not be changed, realizes that a kind of probe is more
Plant purposes.
4th, no matter regular surfaces and irregular surface can be used.Drastically increase the use scope of probe.
5th, detection fluid couplant being automatically drained out and supplements, it is to avoid fluid couplant is surveyed in weak rigidity when nowhere discharging
Amount auxiliary head produces pressure because of volume compression, in turn results in weak rigidity measurement auxiliary head irregular deformation or at other positions
Fluid couplant is leaked.
Brief description of the drawings
Fig. 1 is the ultrasonic examination sensor construction schematic diagram with weak rigid measurement head of the invention；
Fig. 2 is weak rigidity measurement auxiliary head structural representation；
Fig. 3 is probing shell structural representation；
Fig. 4 is sensor body structural representation；
Fig. 5 is elastic sealing gasket structural representation.
Embodiment
The invention will be further described with embodiment below in conjunction with the accompanying drawings.
As shown in Figures 1 to 5, a kind of ultrasonic examination sensor with weak rigid measurement head, measures auxiliary by weak rigidity
Help head（Flexible couplings layer）1st, probing shell 2, elastic sealing gasket 3, sensor body 4 and communication cable 5 are constituted.
Probing shell front portion is equipped with weak rigidity measurement auxiliary head, and rear portion is equipped with sensor body, weak rigidity measurement auxiliary head
Rear end is connected to be tightly connected between sensor body, and weak rigidity measurement auxiliary head and sensor body and probing shell, pops one's head in
Fluid couplant is injected with shell.
As shown in Fig. 2 weak rigidity measurement auxiliary head 1 includes auxiliary head test section 11, V-type portion 12, auxiliary head and popped one's head in outer
Shell connecting portion 13, liquid entrance 14, auxiliary head and sensor body connecting portion 15.Its material of weak rigidity measurement auxiliary head is remote
Less than the rigid flexible material of steel material, main function is fully coupled with complex-curved, the head of auxiliary head test section 11
For sphere, slightly protrusion.Sphere head section thickness is less than other positions（V-type portion 12, auxiliary head and probing shell connecting portion
13rd, auxiliary head and sensor body connecting portion 15）Section thickness, preferential deformation during coupling；It is V-shape portion 12 behind sphere head, it is main
Undertake the elastic deformation along detection direction；Middle auxiliary head is indent cyclic structure with probing shell connecting portion 13, with spy
Head shell 2 is connected cooperation, was both fixed together with probing shell 2, sealing function is played again, prevents fluid couplant to leaking
Leakage；Liquid entrance 14 is offered on the conical surface of end；The auxiliary head of least significant end with sensor body connecting portion 15 be drum-shaped,
It is tightly placed in sensor body and auxiliary head connecting portion.
Sphere head：Operationally using its flexible characteristic can follow testee surface carry out Flexible change with it is flexible with
With because its section is less than other sections, therefore operationally the deformation of spherical head is adjacent to prior to other positions, and all the time
With identical testee surface.
V-shape portion：Part mainly undertakes the elastic deformation along detection direction, the main collection of deformation in probing shell 2 during work
In V-arrangement concave surface, can subsidiary sphere head follow testee surface to carry out Flexible change to follow, and begin with flexibility
Certain elastic pressure along detection direction is produced when being adjacent to testee surface eventually.
Indent annulus：Mainly realize that the close connection with probing shell coordinates using the position, can be played during work close
Envelope is acted on, and prevents fluid couplant from leaking out.
The end conical surface：Liquid entrance is opened up on the conical surface, is used for before work by from the liquid filling hole on probing shell
The fluid couplant of injection introduces weak rigidity measurement auxiliary head, operationally for the weak rigidity of extruded liquid discharge to be measured
Auxiliary head, introduces probing shell, it is to avoid produced when fluid couplant nowhere discharges in weak rigidity measurement auxiliary head because of volume compression
Raw pressure, in turn results in weak rigidity measurement auxiliary head irregular deformation or the fluid couplant at other positions is leaked.
Auxiliary head and sensor body connecting portion：Closely it is connected with sensor body using its elastic characteristic, and ensures it
The liquid of middle perfusion does not produce leakage here.
As shown in figure 3, probing shell 2 includes probing shell and auxiliary head test section connecting portion 21, probing shell liquid coupling
Mixture storage area 22, liquid filling hole 23, probing shell and sensor body connecting portion 24.The material of probing shell 2 is 304 stainless steels.
Liquid filling hole 23 on probing shell 2 be used to injecting with liquid make-up couplant, couplant should be close to liquid feeding when being infused in vertical
Hole 23, and sealed with gag.Probing shell 2 and sensor body and connection side of the probing shell connecting portion 42 using fine thread
Formula.
As shown in figure 4, sensor body 4 includes sensor body and auxiliary head connecting portion 41, sensor body and probe
Cage connection portion 42, sensor body and elastic sealing gasket connecting portion 43, sensor convex shoulder 44.Sensor body connects with auxiliary head
The rear end of socket part 41 is provided with provided with sensor body and probing shell connecting portion 42, sensor body with probing shell connecting portion 42
Fine thread, sensor body and the rear end of probing shell connecting portion 42 provided with sensor body and elastic sealing gasket connecting portion 43 and
Sensor convex shoulder 44.Lead between sensor body and elastic sealing gasket connecting portion 43 and sensor convex shoulder 44 and probing shell 2
Elastic sealing gasket 3 is crossed to connect.Sensor body 4 is using conventional or special straight beam method head body.
As shown in figure 5, the material of elastic sealing gasket 3 is elaxtic seal, sealing function is primarily served, liquid coupling is prevented
Mixture is leaked out in junction.
The operation principle of the present invention:
In detection process, frequently encounter detected object surface irregularity, and periphery without enough operating spaces or
The detection coupled surface that can be made full use of, this brings difficulty to ultrasonic examination, or even can not detect.And use with weak firm
The ultrasonic examination sensor of property measurement head, can by with uneven surface direct-coupling, scientifically solve this problem.
It is weak due to its head when employing the ultrasonic sensor with weak rigid measurement head in detection process
Rigidity characteristics, especially sphere head, because its section is less than the section at other positions, operationally preferential deformation, and internally
Good coincide with being adjacent to can be realized in the presence of liquid gravity with testee surface, you can follow testee well
Surface carries out flexible and Flexible change, to ensure the good condition of detection.
Claims (8)
1. a kind of ultrasonic examination sensor with weak rigid measurement head, auxiliary head (1), probing shell are measured by weak rigidity
(2), sensor body (4) is constituted, it is characterised in that：Probing shell (2) front portion measures auxiliary head (1) equipped with weak rigidity,
Rear portion is equipped with sensor body (4), weak rigidity measurement auxiliary head (1) rear end connection sensor body (4), and weak rigidity measurement is auxiliary
Help and be tightly connected between head (1) and sensor body (4) and probing shell (2), fluid coupling is injected with probing shell (2)
Agent；The front end of the weak rigidity measurement auxiliary head (1) is auxiliary head test section (11), and the auxiliary head test section (11) has can
Follow testee surface to carry out Flexible change to go out to be provided with V-type portion behind sphere head, sphere head with the flexible dimpling followed
(12), the V-type portion (12) be used for undertake along detection direction elastic deformation, can subsidiary sphere head follow measured object
Body surface face carries out Flexible change and followed with flexibility, and is produced all the time when being adjacent to testee surface along the certain bullet for detecting direction
Property pressure；The end of the weak rigidity measurement auxiliary head (1), which is provided with the conical surface, the conical surface, offers liquid entrance, passes through liquid
Import and export and introduce the fluid couplant in probing shell (2) in weak rigidity measurement auxiliary head (1), operationally, will be squeezed
The weak rigidity measurement auxiliary head (1) of fluid couplant discharge enter in probing shell (2).
2. the ultrasonic examination sensor according to claim 1 with weak rigid measurement head, it is characterised in that：It is described weak
The centre of rigidity measurement auxiliary head (1) is provided with auxiliary head and probing shell connecting portion (13), auxiliary head and probing shell connecting portion
(13) it is indent cyclic structure, it is in mating connection with probing shell (2), for being sealedly and fixedly connected with probing shell (2) one
Rise, prevent fluid couplant from leaking out.
3. the ultrasonic examination sensor according to claim 1 with weak rigid measurement head, it is characterised in that：It is described weak
Provided with auxiliary head and sensor body connecting portion (15) behind the end conical surface of rigidity measurement auxiliary head (1), auxiliary head and sensing
Device body connecting portion (15) rear end is drum-shaped, and is tightly placed in sensor body and auxiliary head connecting portion (41).
4. the ultrasonic examination sensor according to claim 1 with weak rigid measurement head, it is characterised in that：It is described weak
Rigidity measurement auxiliary head (1) material be far below the rigid flexible material of steel material, for fully being coupled with complex-curved,
Sphere head section thickness is less than V-type portion（12）, auxiliary head and probing shell connecting portion（13）, auxiliary head and sensor body connect
The section thickness of socket part (15), the preferential deformation in sphere head during coupling, and be adjacent to all the time and identical testee surface.
5. the ultrasonic examination sensor according to claim 1 with weak rigid measurement head, it is characterised in that：It is described to visit
It is connected between head shell (2) and sensor body (4) by fine thread, the sensor body (4) is provided with sensor sheet
Body and elastic sealing gasket connecting portion (43) and sensor convex shoulder (44), sensor body and elastic sealing gasket connecting portion (43) with
And be connected between sensor convex shoulder (44) and probing shell (2) by elastic sealing gasket (3).
6. the ultrasonic examination sensor according to claim 1 with weak rigid measurement head, it is characterised in that：It is described to visit
The material of head shell (2) is 304 stainless steels, and the probing shell (2) is provided with liquid filling hole (23), for injection and liquid make-up
Couplant, and sealed with gag.
7. the ultrasonic examination sensor according to claim 5 with weak rigid measurement head, it is characterised in that：The bullet
Property sealing gasket (3) material be elaxtic seal, for preventing fluid couplant from being leaked out in junction.
8. according to any described ultrasonic examination sensors with weak rigid measurement head of claim 1-7, it is characterised in that：
The sensor body（4）Using conventional or special straight beam method head body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710437784.8A CN107102067B (en) | 2017-06-12 | 2017-06-12 | Ultrasonic examination sensor with weak rigid measuring head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710437784.8A CN107102067B (en) | 2017-06-12 | 2017-06-12 | Ultrasonic examination sensor with weak rigid measuring head |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107102067A true CN107102067A (en) | 2017-08-29 |
| CN107102067B CN107102067B (en) | 2019-10-29 |
Family
ID=59660675
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710437784.8A Active CN107102067B (en) | 2017-06-12 | 2017-06-12 | Ultrasonic examination sensor with weak rigid measuring head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107102067B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111060599A (en) * | 2019-11-29 | 2020-04-24 | 中国兵器科学研究院宁波分院 | Ball type ultrasonic probe and manual and automatic ultrasonic C scanning imaging method |
| CN111386079A (en) * | 2017-10-18 | 2020-07-07 | 尼普洛株式会社 | Cover for ultrasonic diagnostic apparatus and ultrasonic diagnostic apparatus with cover |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1818634A (en) * | 2006-01-24 | 2006-08-16 | 北京工业大学 | Nondestructive supersonic sensor for carbon steel point quality |
| CN2820086Y (en) * | 2005-09-23 | 2006-09-27 | 孙纯民 | Supersonic probe with coupling agent |
| CN101153862A (en) * | 2006-09-29 | 2008-04-02 | 株式会社日立制作所 | Ultrasonic testing apparatus for turbine forks and method thereof |
| CN101329307A (en) * | 2004-04-26 | 2008-12-24 | 株式会社东芝 | 3D ultrasonographic device |
| CN202078328U (en) * | 2011-05-09 | 2011-12-21 | 黄盛玉 | Novel B-ultrasound detection equipment |
| WO2016024212A1 (en) * | 2014-08-11 | 2016-02-18 | Eye-Life As | Ultrasonic scanner with a magnetic coupling between a motor and a mirror |
| CN205449003U (en) * | 2015-12-29 | 2016-08-10 | 中国石油化工股份有限公司 | Can change formula ultrasonic thickness measurement appearance probe from coupling device |
-
2017
- 2017-06-12 CN CN201710437784.8A patent/CN107102067B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101329307A (en) * | 2004-04-26 | 2008-12-24 | 株式会社东芝 | 3D ultrasonographic device |
| CN2820086Y (en) * | 2005-09-23 | 2006-09-27 | 孙纯民 | Supersonic probe with coupling agent |
| CN1818634A (en) * | 2006-01-24 | 2006-08-16 | 北京工业大学 | Nondestructive supersonic sensor for carbon steel point quality |
| CN101153862A (en) * | 2006-09-29 | 2008-04-02 | 株式会社日立制作所 | Ultrasonic testing apparatus for turbine forks and method thereof |
| CN202078328U (en) * | 2011-05-09 | 2011-12-21 | 黄盛玉 | Novel B-ultrasound detection equipment |
| WO2016024212A1 (en) * | 2014-08-11 | 2016-02-18 | Eye-Life As | Ultrasonic scanner with a magnetic coupling between a motor and a mirror |
| CN205449003U (en) * | 2015-12-29 | 2016-08-10 | 中国石油化工股份有限公司 | Can change formula ultrasonic thickness measurement appearance probe from coupling device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111386079A (en) * | 2017-10-18 | 2020-07-07 | 尼普洛株式会社 | Cover for ultrasonic diagnostic apparatus and ultrasonic diagnostic apparatus with cover |
| CN111386079B (en) * | 2017-10-18 | 2024-03-08 | 尼普洛株式会社 | Cover for ultrasonic diagnostic apparatus and ultrasonic diagnostic apparatus with cover |
| CN111060599A (en) * | 2019-11-29 | 2020-04-24 | 中国兵器科学研究院宁波分院 | Ball type ultrasonic probe and manual and automatic ultrasonic C scanning imaging method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107102067B (en) | 2019-10-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106287240B (en) | A kind of pipeline leakage testing device and single-sensor localization method based on sound emission | |
| CN106442736B (en) | Testing device, testing system and testing method for uniaxial compression measurement of impact tendency index and acoustic characteristic of gas-containing coal | |
| CN102486470B (en) | Nondestructive inspection ultrasonic probe universal joint pallet | |
| US20070253519A1 (en) | Method and device for checking a welding seam present at one of the interior surfaces of a reactor pressure vessel | |
| CN110618197A (en) | Long-distance oil and gas pipeline full-defect combined ultrasonic array nondestructive scanning method | |
| CN101699279B (en) | Ultrasonic defect detection method for T-shaped joint fillet weld of dual-phase steel and carbon steel | |
| CN107102067B (en) | Ultrasonic examination sensor with weak rigid measuring head | |
| CN109406637A (en) | A kind of experimental provision for horizontal tank corrosion leakage Acoustic Emission location | |
| CN106457889B (en) | The wheel shaft of wheel set and corresponding supersonic detection method | |
| CN202708601U (en) | Leakage detecting device for external oil-gas pipeline | |
| CN103063745A (en) | Method for measuring inner arc ultrasonic sound energy loss of small diameter tube | |
| CN204345161U (en) | The resistance to negative pressure test of a kind of pipe lining layer and recording device | |
| CN101413927A (en) | Double-inclined transducer | |
| CN201266188Y (en) | Double-inclined transducer | |
| CN105911142A (en) | Friction stirring welding phased array detection device and method of aluminum alloy hollow sectional material | |
| CN104122326B (en) | A kind of supersonic detection method for main steam system super pipeline pressure inlet | |
| CN208091974U (en) | A kind of ultrasonic detection device applied to piston ring carrier | |
| CN215105203U (en) | Penetration type acoustic emission static sounding probe | |
| CN202708602U (en) | Leakage detecting device for internal oil-gas pipeline | |
| CN106052969A (en) | Device and method for detecting gas leakage at packing of valve rod of valve | |
| CN205748514U (en) | A kind of sheet type Ultrasonic water meter, hotlist, effusion meter are with measuring sensor | |
| CN205015313U (en) | Small -bore pipe rolling defect ultrasonic transducer and supporting test block of using | |
| CN210166261U (en) | Density measuring device of slurry shield machine | |
| CN106248303A (en) | The pressurizer of detection waterproof sealing performance of sensors | |
| CN106546663B (en) | The acoustic emission detection method of multilayer binding formula container assembling quality |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |