KR101710573B1 - Ultrasonic Inspection apparatus equipped with Variable extension 2-axis rail - Google Patents

Ultrasonic Inspection apparatus equipped with Variable extension 2-axis rail Download PDF

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Publication number
KR101710573B1
KR101710573B1 KR1020150116449A KR20150116449A KR101710573B1 KR 101710573 B1 KR101710573 B1 KR 101710573B1 KR 1020150116449 A KR1020150116449 A KR 1020150116449A KR 20150116449 A KR20150116449 A KR 20150116449A KR 101710573 B1 KR101710573 B1 KR 101710573B1
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South Korea
Prior art keywords
rail
holder
coupled
stator
bar
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Application number
KR1020150116449A
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Korean (ko)
Inventor
김정환
오현용
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주식회사 에코란티
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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
    • 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
    • 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
    • G01N29/225—Supports, positioning or alignment in moving situation
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
    • H02N15/00—Holding or levitation devices using magnetic attraction or repulsion, not otherwise provided for
    • 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
    • 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
    • G01N2291/263—Surfaces
    • 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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  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • General Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Acoustics & Sound (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)

Abstract

The present invention relates to an ultrasonic diagnostic apparatus having an extended variable type biaxial rail, and more particularly, to an ultrasonic diagnostic apparatus provided with an upper conveying unit 10 and a left and right conveying unit 20 for conveying a test box 40 during a test, The holder 40 is provided with a holder 30 for allowing the flexure surface inspection of the test box 40 to flow smoothly so that the probe can be inspected on the curved surface when the probe is vertically rotated and rotated up and down during the inspection of the large test object, The present invention relates to an ultrasonic inspection apparatus provided with an extended variable-type two-axis rail capable of controlling the length of a rail for transporting a probe.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an ultrasonic inspection apparatus equipped with an extended variable-

[0001] The present invention relates to an ultrasonic inspection apparatus provided with an extended variable type biaxial rail, and more particularly, to an ultrasonic inspection apparatus provided with an extended variable type biaxial rail, The present invention relates to an ultrasonic inspection apparatus having an extended variable-type two-axis rail capable of adjusting a length of a rail.

In general, a conventional ultrasonic inspection apparatus for inspecting welding defects of a hull is equipped with an ultrasonic probe on a base which is made to be able to travel by a motor drive, and a probe is brought into close contact with the surface of the object to be inspected during traveling, Thereby inspecting defects.

The ultrasonic inspection is a non-destructive inspection method for analyzing the position and size of defects by analyzing the energy amount and the processing time of the ultrasonic waves reflected from the defects existing inside by transmitting the ultrasonic waves to the inspection object. The amount of energy of the ultrasonic waves reflected from the discontinuities existing in the lower surface and the time of the ultrasonic waves are analyzed to accurately determine the position and size of the discontinuity.

Such ultrasonic inspection is most widely used in conjunction with radiographic inspection in order to identify the discontinuity in the interior of the object. However, it can be easily inspected even if the thickness of the object is thick, This is an excellent advantage.

In addition, the ultrasonic inspection used in the industrial field is not only for inspection of laminations, cracks and inclusions contained in the discontinuities of the base material but also for inspection of pores, cracks, inclusions and fatigue cracks And is used for detection. It can be used not only for steel but also for bridges made of non-steel materials, steel structures, shipbuilding, pressure vessels, general machinery parts and so on.

A related art related to this is disclosed in Korean Patent No. 10-1253776 (Apr. 04, 2013.).

1, the ultrasonic diagnostic apparatus according to the present invention includes an ultrasonic probe 110 configured to contact a shaft p to be inspected, a housing 120 having a groove 121 for receiving the ultrasonic probe 110 downward, A pin 130 which is fixed to the housing 120 and extends upward and a through hole 141 which passes through the pin 130 and is wider than the pin 130, A compression spring 150 which is inserted between the guide 140 and the housing 120 and which is configured to move in the longitudinal direction of the shaft p; A ball joint 160 that rotates to the side of the housing 120 and protrudes downward from the guide 140 so as to be in close contact with the shaft 120; Roll 170 as shown in FIG.

Therefore, even if the shaft p rotates eccentrically or tilts in the longitudinal direction, the state in which the roll 170 is in close contact with the axis p can be maintained by the compression spring 150 Therefore, the contact portion 113 of the ultrasonic probe 110 can prevent the occurrence of uneven wear, so that the contact state can be maintained without being always spaced apart from the axis p, so that accurate pulse data can be obtained .

However, when the surface of the object to be inspected is uniform, the accuracy of the inspection is high. However, when the surface of the inspected object has a curved surface, irregularity, or stepped surface, there was.

In addition, since the accuracy of the inspection is low, the conventional technique uses a method of repeatedly performing a plurality of tests to improve the accuracy.

SUMMARY OF THE INVENTION The present invention has been made in order to solve the problems of the prior art as described above, and it is an object of the present invention to provide a method and apparatus for detecting an irregular surface of an object to be examined, The present invention provides an ultrasonic inspection apparatus provided with a deflection holder and an extended variable type biaxial rail for facilitating adjustment and installation of a rail during ultrasonic inspection of a large inspection object.

According to an aspect of the present invention, there is provided an ultrasonic inspection apparatus including an extended variable-type two-axis rail, the rail including a two-axis rail having two shafts parallel to the traverse direction, An upper conveying unit coupled to the assembling member and having a magnetic stator magnetically attached to the surface of the test subject; A pair of rail coupling portions coupled to the rail so as to be vertically conveyable, a pair of second rails extending from the rail coupling portion, and a left and right conveying portion having a laser rod for indicating a left and right central point of the second rail; A bar stator which is coupled to the second rail and extrapolatedly coupled to the second rail so as to be movable in a right and left direction, a bar stator which is coupled to the test combine and has a flow bar groove recessed inward from one side thereof, A bar fixture coupled to an upper portion of the flow bar and coupled to the bar stator in a direction opposite to the bar stator, a restoring spring connected between the bar fixture and the probe barrel, A holder connection portion connected to a lower portion between the pair of flow bars, and a holder portion including a test box holder coupled to the holder connection portion; And a probe which is rotatably coupled to the probe holder.

The rail assembly member includes two reinforcing plates coupled to a bottom surface of the rail, a coupling plate connecting between the reinforcing plates, and a coupling pin detachably coupling the reinforcing plate and the coupling plate to each other .

The magnetic stator includes a magnetic enclosure magnetically attached to the surface of the object to be inspected, a flow column extending upward from an upper end of the magnetic enclosure, one side fixedly coupled to the rail assembling member, And a rail stator having a flow hole fixed to the stator.

The probe holder includes a pair of holder plates protruded to be coupled with the probe, the probe holder being axially inwardly opposed to the probe holder. The holder holder is coupled between the holder connector and the holder plate, And a detachment shaft provided with a detachment spring.

Wherein the probe is a probe for generating ultrasound waves to the subject and sensing the reflected ultrasound waves and a position adjusting rod extending from the probe to the other side so as to adjust the position of the probe, And a holder groove recessed inward to be coupled to the rotation holder shaft.

Wherein the screw fastener comprises a coupling core body having a stator coupling end coupled to the bar stator, a guide coupling member coupled to one side of the coupling core body and guiding the left and right transfer along the second rail, And a guide fixing lever provided on one side of the guide coupling so as to be fixed to the second rail.

The rail assembly member is provided with an extension control bar coupled between the biaxial rails so that the distance between the biaxial rails is kept constant when the rails are extended.

As described above, the ultrasonic inspection apparatus provided with the extended variable type biaxial rail according to the present invention has the following effects

First, since the rails on which the test apparatuses are installed are provided with the extended variable type biaxial rails so as to be capable of expanding the detection distance, the test inspection distance of the test person can be stably extended on the surface of the test subject during the ultrasonic test of the large test object ,

Second, since the probe holder is coupled with the probe so that the probe can rotate, and the flow bar extending perpendicularly to the surface of the probe so that the probe moves up and down, the probe moves along the curved surface during the probe inspection, Inspection inspection is possible,

Third, since the rail assembly member includes two reinforcing plates, a coupling plate, a coupling pin for detachably coupling the reinforcing plate and the coupling plate, and a rail assembly member for adjusting the distance between the shafts, The adjustment of the inspection distance of the rail is free,

Fourth, since the magnetic stator is attached to the rail assembly member, which is detachably coupled, and is magnetically attached to the surface of the test subject, the extension of the rail can be easily performed, thereby facilitating the installation of the test apparatus.

1 is a side view of a conventional ultrasonic inspection apparatus,
FIG. 2 is a perspective view of an ultrasonic inspection apparatus provided with an extended variable type biaxial rail according to the present invention,
3 is a perspective view of a holder and a probe of the ultrasonic diagnostic apparatus according to the present invention,
4 is a perspective view of a magnetic stator and a rail assembly member according to the present invention,
5 is a front view of the ultrasonic inspection apparatus according to the present invention,
6 is a side view of the ultrasonic inspection apparatus according to the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an ultrasonic diagnostic apparatus according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

As shown in FIGS. 2 to 4, the ultrasonic inspection apparatus having the extended variable type biaxial rail according to the present invention is characterized in that the rail R extending to the detachable rail assembly member 12 is divided into two axes parallel to the detection direction A vertical conveying unit 10 having a biaxial rail 11 and a magnetic stator 13 coupled to the rail assembly member 12 and magnetically attached to the surface of the test object P; A pair of rail coupling parts 21 coupled to the rail R in a vertically transferable manner, a pair of second rails 22 extending from the rail coupling part 21, (20) having a laser rod (23) for displaying a left and right central point; And a bar stator (21) provided with a deflecting coupling hole (31) coupled to the second rail (22) by being extrapolatedly connected to the second rail (22) A pair of flow bars 33 extending in the vertical direction on the surface of the test object P so as to be vertically flowed in the flow bar groove 32a; And a restoring spring 35 connected between the bar fixture 34 and the test fixture 31. The pair of restricting springs 35 are connected to the bar stator 32 in a direction opposite to the bar stator 32, A holder connection portion 36 connected to a lower portion of the holder connection portion 36 and a holder portion 37 coupled to the holder connection portion 36; And a test box 40 rotatably coupled to the test box holder 37.

Here, the rail (R) is provided as an LM guide, and is controlled by a remote controller (not shown). The remote control unit (not shown) controls transmission / reception of the ultrasonic inspection information sensed by the test box 40, and performs signal processing to display the ultrasonic inspection information on a display screen (not shown).

The upper conveying unit 10 allows the left and right conveying unit 20 to be vertically conveyed and the left and right conveying unit 20 allows the holder unit 30 to be conveyed to the left and right. The test box 40 can be rotated up and down and tilted up and down on the curved surface of the subject P so that the test box 40 is constantly brought into contact with the surface of the subject P, .

The test box 40 is detachably coupled to the test box holder 37, thereby facilitating mounting and mounting.

4, the rail assembly member 12 includes two reinforcing plates 12a coupled to the bottom surface of the rail R and a coupling plate 12a connecting the reinforcing plates 12a, And a coupling pin 12c for detachably coupling the rail R with the reinforcing plate 12a and the coupling plate 12b. Therefore, expansion and connection of the rail (R) using the rail assembly member (12) is facilitated.

The magnetic stator 13 includes a magnetic enclosure 13a magnetically attached to the surface of the object P, a flow column 13b extending upward from the upper end of the magnetic enclosure 13a, And a rail stator 13c having a flow hole 13d through which the flow column 13b is inserted and fixed. The other end of the rail stator 13c is fixed to the rail assembly member 12. The configuration of the magnetic stator 13 is such that the fixing of the rail R is attached by a magnetic force, and the height of the rail is adjusted.

The turntable holder 37 includes a pair of holder plates 37b having inwardly facing rotation holder shafts 37a protruded to engage the turntable 40, And a detachable shaft 37d coupled to the holder plate 37b and having a detachable spring 37c at its outer circumferential edge so that the holder plate 37b is opposed to each other.

A probe 41 for generating ultrasonic waves to the subject P and sensing the reflected ultrasound waves and a position adjusting bar 41 extending from the one side of the probe 41 to the other side And a holder groove 41a which is recessed inwardly to be engaged with the rotation holder shaft 37a is provided on both sides of the probe 41. [

That is, a force is applied so that the detachment spring 37c provided on the detachable shaft 37d is contracted to widen the interval between the holder plates 37b, and then the probe 41 is coupled to the holder plate 37b. The detection sensor 41 is coupled to the rotation holder shaft 37a by the restoring force of the release spring 37c.

The test fixture 31 includes an engagement socket body 31b having a stator engagement end 31a coupled to the bar stator 32, A guide coupling 31c for guiding the left and right conveyance along the two rails 22 and a guide groove 31c for fixing the coupling hole 31b to the second rail 22, And a guide fixing lever 31d.

The guide rails 31c are closely contacted with the outer circumference of the second rails 22 so that the guide rails 31b can be stably transported while preventing the rails from being moved in the lateral direction. It is preferable that a screw-like or cam protruding portion (not shown) is provided at the lower portion so as to be fixed to the two rails 22.

On the other hand, the rail assembly member 12 is provided with an extension control bar 12d which is coupled between the biaxial rails 11 so that the distance between the shafts is kept constant when the rails R are extended, .

The operation of the ultrasonic diagnostic apparatus having the above-described configuration and having the extended variable type biaxial rail according to the present invention is as follows.

5 to 7, the rail R of the two-axis rail 11 formed of two shafts is easily attached to the rail R by a magnetic force, as shown in FIGS. 5 to 7, And the test box 40 is coupled to the holder portion 30 so that the test box 40 can be rotated up and down and rotated up and down so that the inspection of the curved surface of the subject P is facilitated.

The rail assembly member 12 extending the rail R includes a reinforcing plate 12a reinforced on the bottom surface of the rail R and an engaging plate 12b connecting the reinforcing plate 12a. And an engaging pin 12c for detachably connecting the rail R with the reinforcing plate 12a and the engaging plate 12b so that it is easy to extend the test distance without a complicated mounting apparatus.

The rail assembly member 12 is provided with an extension control bar 12d which is inserted between the biaxial rails 11 when the rails R are extended so that the distance between the axes of the biaxial rails 11 Is formed constantly and is extended.

The rail (R) is attached to the surface of the object P by a magnetic stator (13). At this time, a flow column 13b extending upward is inserted in the magnetic housing 13a of the magnetic stator 13 and fixed to the rail stator 13c so as to be vertically adjusted in height.

That is, the rail stator 13c and the flow column 13b serve to adjust the height of the vertical conveying unit 10 to a constant level and to attach it to the surface of the test object P.

The left and right transporter 20, which flows from the upper part of the biaxial rail 11, is provided with a laser rod 23 at the center, so that the central point of the detection point can be grasped.

The left and right conveying unit 20 further includes a rail coupling 21 coupled to the rail R and a second rail 22 for guiding the conveying to the left and right. do. At this time, the holder 30 is fixed on the second rail 22 by providing the guide fixing lever 31d on one side of the probe fitting 31 of the holder 30.

The holder 30 is provided with a flow bar 33 which vertically flows in the bar stator 32 coupled to the test fixture 31 so that the test box 40 Can be vertically moved.

That is, the test box 40 is lifted up to the upper portion of the curved surface of the test object P, and the test fixture 40 is coupled to the test fixture 31 and the bar fixture 34 And restored to its original height through the restoring spring 35. [

The probe holder 37 of the holder 30 coupled to the probe 40 is tilted so that the holder plate 37b is coupled with the detachment shaft 37d having the detachment spring 37c . As the holder plate 37b flows, the test sensor 41 of the test box 40 can be easily attached to and detached from the holder plate 37b. That is, the holder groove 41a of the detection sensor 41 is coupled to the rotation holder shaft 37a of the holder plate 37b so that the rotation holder shaft 37a serves as a rotation axis of the probe 40 .

Therefore, the test box 40 is vertically moved or rotated on the curved surface of the subject P to facilitate the inspection.

As described above, in the ultrasonic inspection apparatus provided with the extended variable type biaxial rail of the present invention, the test box 40 is vertically moved even on the curved surface of the object P to facilitate the inspection of the irregular surface, It can be extended by the mounting rail (R), thus making it convenient to use.

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined in the appended claims and their equivalents. Of course, such modifications are within the scope of the claims.

Description of the Related Art
10: Shanghai shipment 11: 2-axis rail
12: rail assembly member 12a: reinforcing plate
12b: engaging plate 12c: engaging pin
12d: extension control bar 13: magnetic stator
13a: magnetic enclosure 13b: flow column
13c: rail stator 13d: floating ball
20: conveying left and right 21: rail coupling port
22: second rail 23: laser rod
30: holder part 31:
31a: Stator coupling end 31b:
31c: guide coupling hole 31d: guide fixing lever
32: bar stator 32a: floating bar
33: Floating bar 34: Bar fixing
35: restoring spring 36: holder connector
37: Tom box holder 37a: Rotation holder shaft
37b: holder plate 37c: releasing spring
37d: Disengagement shaft 40:
41: Tracing sensor 41a: Holder groove
42: Position adjusting bar
P: subject R: rail

Claims (7)

A two-axis rail 11 formed of two shafts with rails R extending to a detachable rail assembly member 12 formed in two axes parallel to the direction of the test, (10) having a magnetic stator (13) magnetically attached to a surface thereof; A pair of rail coupling parts 21 coupled to the rail R in a vertically transferable manner, a pair of second rails 22 extending from the rail coupling part 21, (20) having a laser rod (23) for displaying a left and right central point; And a bar stator (21) provided with a deflecting coupling hole (31) coupled to the second rail (22) by being extrapolatedly connected to the second rail (22) A pair of flow bars 33 extending in the vertical direction on the surface of the test object P so as to be vertically flowed in the flow bar groove 32a; And a restoring spring 35 connected between the bar fixture 34 and the test fixture 31. The pair of restricting springs 35 are connected to the bar stator 32 in a direction opposite to the bar stator 32, A holder connection portion 36 connected to a lower portion of the holder connection portion 36 and a holder portion 37 coupled to the holder connection portion 36; And a test box (40) rotatably coupled to the test box holder (37)
The magnetic stator 13 includes a magnetic enclosure 13a magnetically attached to the surface of the object P and a flow column 13b extending upward from an upper end of the magnetic enclosure 13a, And a rail stator (13c) having a flow hole (13d) in which the flow column (13b) is inserted and fixed by being fixed to the rail assembly member (12) Ultrasonic inspection apparatus. The method according to claim 1,
The rail assembly member (12)
A pair of reinforcing plates 12a connected to the bottom of the rail R and a connecting plate 12b connecting between the reinforcing plates 12a; And an engagement pin (12c) for detachably coupling the plate (12b) so that the plate (12b) can be detachably attached to the plate (12b). delete The method according to claim 1,
The to-be-box holder 37
A pair of holder plates 37b having a rotation holder shaft 37a protruded so as to engage with the test box 40 so as to face inward,
And a detachment shaft 37d which is coupled between the holder connection port 36 and the holder plate 37b and has a detachment spring 37c on the outer circumference so that the holder plate 37b is opposed to each other Characterized in that it comprises an extended variable type biaxial rail. 5. The method of claim 4,
The test box (40)
A probe 41 for generating and transmitting ultrasound to the subject P and sensing the reflected ultrasound waves and a position adjusting bar 42 extending from the probe 41 to the other side ),
The ultrasonic inspection apparatus according to any one of claims 1 to 3, further comprising a holder groove (41a) formed on both sides of the tacking sensor (41) to be coupled to the rotation holder shaft (37a). The method according to claim 1,
The test fixture 31 has
A coupling member main body 31b having a stator coupling end 31a coupled with the bar stator 32 and a coupling member 31b coupled to one side of the coupling hole main body 31b to be moved in the left and right direction along the second rail 22 And a guide fixing lever 31d provided at one side of the guide coupling hole 31c so as to fix the coupling hole main body 31b to the second rail 22 Characterized in that it comprises an extended variable type biaxial rail. 3. The method of claim 2,
The rail assembly member (12)
And an extension control bar (12d) coupled between the biaxial rails (11) so that the distance between the biaxial rails (11) is kept constant during the extension of the rail (R) Device.
KR1020150116449A 2015-08-19 2015-08-19 Ultrasonic Inspection apparatus equipped with Variable extension 2-axis rail KR101710573B1 (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20190136635A (en) * 2018-05-31 2019-12-10 한국해양과학기술원 Non-Destructive Test Apparatus For Pier
CN113500273A (en) * 2021-06-07 2021-10-15 中铁十八局集团隧道工程有限公司 Steel box girder construction welding process
KR200494672Y1 (en) * 2021-06-07 2021-12-01 나우 주식회사 Ultrasonic Testing Apparatus

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010137706A1 (en) * 2009-05-28 2010-12-02 財団法人電力中央研究所 Scanning device for nondestructive inspection and nondestructive inspection equipment
JP2012225746A (en) * 2011-04-19 2012-11-15 Ihi Corp Ultrasonic flaw detection method and ultrasonic flaw detection apparatus
KR101251383B1 (en) * 2012-04-19 2013-04-05 주식회사 에네스지 Wedge unit for ultrasonic test
KR101257687B1 (en) * 2011-10-14 2013-04-24 국방과학연구소 Non-destructive testing apparatus and non-destructive testing system having the same

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010137706A1 (en) * 2009-05-28 2010-12-02 財団法人電力中央研究所 Scanning device for nondestructive inspection and nondestructive inspection equipment
JP2012225746A (en) * 2011-04-19 2012-11-15 Ihi Corp Ultrasonic flaw detection method and ultrasonic flaw detection apparatus
KR101257687B1 (en) * 2011-10-14 2013-04-24 국방과학연구소 Non-destructive testing apparatus and non-destructive testing system having the same
KR101251383B1 (en) * 2012-04-19 2013-04-05 주식회사 에네스지 Wedge unit for ultrasonic test

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20190136635A (en) * 2018-05-31 2019-12-10 한국해양과학기술원 Non-Destructive Test Apparatus For Pier
KR102108306B1 (en) 2018-05-31 2020-06-01 한국해양과학기술원 Non-Destructive Test Apparatus For Pier
CN113500273A (en) * 2021-06-07 2021-10-15 中铁十八局集团隧道工程有限公司 Steel box girder construction welding process
KR200494672Y1 (en) * 2021-06-07 2021-12-01 나우 주식회사 Ultrasonic Testing Apparatus

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