JPH0151940B2 - - Google Patents
Info
- Publication number
- JPH0151940B2 JPH0151940B2 JP5448184A JP5448184A JPH0151940B2 JP H0151940 B2 JPH0151940 B2 JP H0151940B2 JP 5448184 A JP5448184 A JP 5448184A JP 5448184 A JP5448184 A JP 5448184A JP H0151940 B2 JPH0151940 B2 JP H0151940B2
- Authority
- JP
- Japan
- Prior art keywords
- water
- nozzle
- probe
- tip
- water column
- 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.)
- Expired
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 61
- 239000000523 sample Substances 0.000 claims description 43
- 230000004888 barrier function Effects 0.000 claims description 10
- 239000012528 membrane Substances 0.000 claims description 10
- 239000011148 porous material Substances 0.000 claims description 8
- 238000010168 coupling process Methods 0.000 claims description 7
- 230000008878 coupling Effects 0.000 claims description 5
- 238000005859 coupling reaction Methods 0.000 claims description 5
- 239000000463 material Substances 0.000 description 26
- 239000010408 film Substances 0.000 description 10
- 230000000694 effects Effects 0.000 description 7
- 238000001514 detection method Methods 0.000 description 6
- 239000004033 plastic Substances 0.000 description 5
- 229920003023 plastic Polymers 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 229920004943 Delrin® Polymers 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 229920006311 Urethane elastomer Polymers 0.000 description 1
- POIUWJQBRNEFGX-XAMSXPGMSA-N cathelicidin Chemical compound C([C@@H](C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CO)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CCC(O)=O)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H]([C@@H](C)CC)C(=O)NCC(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CCC(O)=O)C(=O)N[C@@H](CC=1C=CC=CC=1)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H]([C@@H](C)CC)C(=O)N[C@@H](C(C)C)C(=O)N[C@@H](CCC(N)=O)C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H]([C@@H](C)CC)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CC(O)=O)C(=O)N[C@@H](CC=1C=CC=CC=1)C(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H](CC(N)=O)C(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](C(C)C)C(=O)N1[C@@H](CCC1)C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H]([C@@H](C)O)C(=O)N[C@@H](CCC(O)=O)C(=O)N[C@@H](CO)C(O)=O)NC(=O)[C@H](CC=1C=CC=CC=1)NC(=O)[C@H](CC(O)=O)NC(=O)CNC(=O)[C@H](CC(C)C)NC(=O)[C@@H](N)CC(C)C)C1=CC=CC=C1 POIUWJQBRNEFGX-XAMSXPGMSA-N 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
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
- G01N29/28—Details, e.g. general constructional or apparatus details providing acoustic coupling, e.g. water
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)
- Length Measuring Devices Characterised By Use Of Acoustic Means (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Description
【発明の詳細な説明】
〔発明の属する技術分野〕
本発明は、超音波を用いて被検材表面の欠陥を
検査するために用いられる表面波探触子装置に関
するものである。DETAILED DESCRIPTION OF THE INVENTION [Technical field to which the invention pertains] The present invention relates to a surface wave probe device used for inspecting defects on the surface of a test material using ultrasonic waves.
第１図は従来公知の表面波探触子装置の一例を
示す構成断面図で、特公昭58−32695号公報に記
載されているものである。第１図において、１は
ハウジングであつて探触子２の音響投射面を除く
５面を覆う形状となつており、図示の断面ではコ
の字形の形状となつている。３はハウジング１の
下端面に取付けられた探触子シユーで、探触子２
を挿嵌し得るようなロの字形の開口を持つてい
る。
FIG. 1 is a sectional view showing an example of a conventional surface wave probe device, which is described in Japanese Patent Publication No. 58-32695. In FIG. 1, a housing 1 has a shape that covers five sides of the probe 2 except for the acoustic projection surface, and has a U-shaped cross section as shown. 3 is a probe shoe attached to the lower end surface of the housing 1, and the probe 2
It has a square-shaped opening into which it can be inserted.
第２図は第１図の表面波探触子装置を下面側か
ら見た図であり、探触子シユーの底面には４方向
に向けて複数の第１の溝４が刻設されており、ま
た、探触子２を囲んでロの字形に複数本の第２の
溝５が刻設されており、この第２の溝５は上記第
１の溝４に連通している。６は探触子２と被検材
表面７との間の空隙８に水膜を形成させるために
水を流す第１の流水路、９は上記探触子２とハウ
ジング１との間の空隙である。この空隙９は、第
１の流水路６を通つて探触子２と被検材表面７と
の空隙８に形成した水膜の溢水を吸引して、探触
子装置外に排出するための第２の流水路として機
能する。 FIG. 2 is a diagram of the surface wave probe device shown in FIG. 1 viewed from the bottom side, and a plurality of first grooves 4 are carved in four directions on the bottom surface of the probe shoe. Further, a plurality of second grooves 5 are carved in a square shape surrounding the probe 2, and the second grooves 5 communicate with the first groove 4. Reference numeral 6 denotes a first flow channel through which water flows in order to form a water film in the gap 8 between the probe 2 and the surface 7 of the test material; 9 indicates the gap between the probe 2 and the housing 1; It is. This gap 9 is used to suck the overflowing water from the water film formed in the gap 8 between the probe 2 and the surface 7 of the test material through the first flow channel 6 and discharge it to the outside of the probe device. It functions as a second flow channel.
以上の探触子装置では探傷時には、溝４と被検
材表面７との間を吸引される空気１０と共に、探
触子装置外に溢出しようとする水は、吸引されて
溝５および第２の流水路９を通つて探触子装置外
に排出される。 In the probe device described above, during flaw detection, along with the air 10 that is sucked between the groove 4 and the surface 7 of the test material, water that is about to overflow outside the probe device is sucked into the groove 5 and the second is discharged to the outside of the probe device through the flow channel 9.
しかしながら、この様な構成の従来装置にあつ
ては、探触子と被検材の音響結合が水膜結合方式
となつているために、探触子装置の平面方向の外
形が比較的大きく、従つて被検材と接触する接触
シユーの接面の周囲長が長く、また接面の広がり
が大きく、水膜を形成すべき空間が大きい構造と
なつている。この為に比較的多量の水を必要とす
るにも拘わらず、真空装置の吸引の効果が悪く、
特に被検材表面に凹凸やうねりがある場合には、
吸引が不安定になり、水の除去が不完全になると
いう問題点があつた。また、被検材が曲面である
場合、探触子シユーに曲率を持たせなければなら
ず、このため被検材の表面曲率が変る都度曲率に
合つたシユーに変換する必要があり、取扱いが煩
しいという欠点もあつた。 However, in conventional devices with such a configuration, the acoustic coupling between the probe and the material to be tested is based on a water film coupling method, so the external shape of the probe device in the planar direction is relatively large. Therefore, the circumferential length of the contact surface of the contact shoe that comes into contact with the test material is long, the contact surface is wide, and the space in which the water film is to be formed is large. For this reason, although a relatively large amount of water is required, the suction effect of the vacuum device is poor,
Especially when the surface of the material to be inspected has unevenness or undulations,
There were problems in that suction became unstable and water removal was incomplete. In addition, if the material to be inspected has a curved surface, the probe shoe must have a curvature. Therefore, each time the surface curvature of the material to be inspected changes, it is necessary to convert it into a shoe that matches the curvature, making handling difficult. It also had the drawback of being cumbersome.
本発明は、この様な従来装置における問題点に
着目してなされたもので、被検材との接触面積が
小さく、被検材表面にうねり等があつても吸引効
果が変化しない表面波探触子装置を実現しようと
するものである。
The present invention was developed by focusing on the problems with conventional devices, and is based on surface wave detection, which has a small contact area with the test material and the suction effect does not change even if the surface of the test material is undulated. This is an attempt to realize a tactile device.
本発明に係る表面波探触子装置は、探触子と被
検材との音響結合をノズルを用いた水柱結合と
し、ノズルと同芯に軟質のプラスチツク管を設け
てノズルと軟質プラスチツク管の間の空隙に真空
装置による吸引を行なわせ、併せてノズル先端に
おいて微小なスリツトあるいは細孔を設けた軟質
ゴム又はポリエチレン薄膜を装着し、供給水量を
絞るようにした点に構成上の特徴がある。
In the surface wave probe device according to the present invention, the acoustic coupling between the probe and the material to be measured is water column coupling using a nozzle, and a soft plastic tube is provided concentrically with the nozzle to connect the nozzle and the soft plastic tube. The structure is characterized by the fact that suction is performed by a vacuum device in the gap between the nozzles, and a soft rubber or polyethylene thin film with minute slits or pores is attached at the tip of the nozzle to reduce the amount of water supplied. .
第３図は、本発明に係る装置の一例を示す構成
断面図である。この図において、１１は探触子ホ
ールダ、１２はこの探触子ホールダ１１の中心軸
CLの上部に設けた穴に装着した水浸型探触子で
ある。１３は中心軸CLの下部に設けた穴に装着
した例えばプラスチツク管による水柱ノズルで、
この水柱ノズル１３は、探触子１２の音響投射面
の位置で、中心軸CLに対して直交するように設
けられている給水孔１４に連通している。ここで
水柱ノズル１３に用いられているプラスチツク管
は、ノズル先端が、被検材２０の表面に接触して
撓み、変形をすることのないよう比較的硬質の材
料、例えばナイロンあるいはデルリンなどの樹脂
材料で構成することが望ましい。
FIG. 3 is a structural sectional view showing an example of the device according to the present invention. In this figure, 11 is a probe holder, and 12 is a central axis of this probe holder 11.
This is a water immersion probe attached to a hole in the top of the CL. 13 is a water column nozzle made of, for example, a plastic tube attached to a hole provided at the bottom of the central axis CL,
This water column nozzle 13 is in communication with a water supply hole 14 provided perpendicularly to the central axis CL at the position of the acoustic projection surface of the probe 12. The plastic tube used for the water column nozzle 13 is made of a relatively hard material, such as a resin such as nylon or Delrin, so that the nozzle tip does not bend or deform when it comes into contact with the surface of the test material 20. Preferably, it is made of material.
１５は探触子ホールダ１１の下方で水柱ノズル
１３と同軸になるように嵌着したプラスチツク管
による外筒で、この外筒１５と、水柱ノズル１３
との間には、断面が円環状の空隙１５０が形成さ
れる。 Reference numeral 15 denotes an outer cylinder made of a plastic tube fitted coaxially with the water column nozzle 13 below the probe holder 11. This outer cylinder 15 and the water column nozzle 13
A gap 150 having an annular cross section is formed between the two.
この空隙１５０は、探触子ホールダ１１の下部
で中心軸CLに対して直角方向に延出した排水孔
１６と連通させてある。 This gap 150 is communicated with a drainage hole 16 extending in the lower part of the probe holder 11 in a direction perpendicular to the central axis CL.
第４図は、第３図の水柱ノズル１３の先端部分
の拡大説明図である。水柱ノズル１３の先端に
は、音響インピーダンスが水に近似の材料、例え
ば薄いウレタンゴム膜あるいはポリエチレン膜１
７を持つた先端キヤツプ１８をかぶせてある。こ
の膜１７は、水柱ノズル１３の先端から適度に水
が流出しないようにノズル先端をしきるしきり膜
であり、また、同時に被検材表面２０としきり膜
の間に音響媒質としての水を供給するために膜の
一部に適当な個数の細孔１９を設けてある。な
お、この膜圧は超音波の波長λに対してλ／４あ
るいはλ／４の奇数倍に選んである。 FIG. 4 is an enlarged explanatory view of the tip portion of the water column nozzle 13 shown in FIG. 3. The tip of the water column nozzle 13 is made of a material whose acoustic impedance is similar to that of water, such as a thin urethane rubber film or polyethylene film 1.
A tip cap 18 with a tip 7 is placed over it. This membrane 17 is a barrier membrane that restricts the tip of the water column nozzle 13 so that a suitable amount of water does not flow out from the tip of the nozzle, and at the same time supplies water as an acoustic medium between the surface 20 of the test material and the barrier membrane. For this purpose, a suitable number of pores 19 are provided in a part of the membrane. Note that this film thickness is selected to be λ/4 or an odd multiple of λ/4 with respect to the wavelength λ of the ultrasonic wave.
以上説明した表面波探触子装置を作動させるた
めには、第５図に示すように、給水系統の流路中
に微小流量調整用のニードル弁２１を設けて給水
源３０、例えばヘツドタンクに接続する。 In order to operate the surface wave probe device described above, as shown in FIG. do.
なお、第３図において、符号２３は気泡抜きで
あつて、ポペツト２４およびコイルバネ２５から
成る。ポペツト２４を指先で押すと、ポペツトバ
ルブシートが開き探触子音響投射面の近傍の水が
排出され、気泡が存在する場合には水と一緒に排
除される。 In FIG. 3, reference numeral 23 is an air bubble vent, which is composed of a poppet 24 and a coil spring 25. When the poppet 24 is pressed with a fingertip, the poppet valve seat opens and water in the vicinity of the probe sound projection surface is discharged, and if any air bubbles are present, they are removed along with the water.
また、水柱ノズル１３の先端および外筒１５の
先端は、第４図に示すように、表面波を発生する
入射角に相応した角度で、斜めに切断して角度を
与えることは説明するまでもなく当然の条件であ
り、さらに、第３図に示す探触子装置を必要な入
射角に保持するための手段が必要なことも言うま
でもない。 It goes without saying that the tip of the water column nozzle 13 and the tip of the outer cylinder 15 are cut diagonally at an angle corresponding to the angle of incidence that generates surface waves, as shown in FIG. This is a natural condition, and it goes without saying that means for holding the probe device shown in FIG. 3 at a required angle of incidence is also required.
以上のように構成した本実施例に係る装置の動
作を次に説明する。 The operation of the apparatus according to this embodiment configured as above will be described next.
第３図において、給水口１４に供給された水
は、探触子１１２の音響投射面から水柱ノズル先
端のしきり膜１７に到る水柱を形成する。給水量
は、しきり膜１７に設けた細孔１９からの流出水
を補給するのみであるから極微量の水量でよく、
第５図に示す給水系統流路中に設けた微小流量調
整用のニードル弁２１によつて流量が調整され
る。しきり膜１７の細孔１９から流出した水は、
第４図に示すように、被検材表面２０としきり膜
１７の間の微小な空隙を表面張力によつて浸入し
て満たす。この時、しきり膜１７は、水柱内の水
頭圧および後記する吸引口からの真空排気による
負圧によつて、被検材表面２０に殆ど密着する状
態になつている。ノズル先端の被検材表面２０と
の相対移動によつて溢れた水および残留水は、水
筒１５と水柱ノズル１３の外周面との間の空隙１
５０に印加される真空排気によつて吸引されて、
吸引口１６から空気と共に排出される。 In FIG. 3, water supplied to the water supply port 14 forms a water column extending from the acoustic projection surface of the probe 112 to the barrier membrane 17 at the tip of the water column nozzle. The amount of water to be supplied is only a very small amount because it only replenishes the water flowing out from the pores 19 provided in the diaphragm 17.
The flow rate is adjusted by a needle valve 21 for minute flow rate adjustment provided in the water supply system channel shown in FIG. The water flowing out from the pores 19 of the barrier membrane 17 is
As shown in FIG. 4, the microscopic gap between the surface 20 of the test material and the diaphragm 17 is penetrated and filled by surface tension. At this time, the barrier membrane 17 is in almost intimate contact with the surface 20 of the test material due to the head pressure in the water column and the negative pressure caused by evacuation from the suction port, which will be described later. Overflowing water and residual water due to the relative movement of the tip of the nozzle with the surface 20 of the material to be tested are drained into the gap 1 between the water bottle 15 and the outer peripheral surface of the water column nozzle 13.
50 by the vacuum pump applied to the
It is discharged from the suction port 16 together with air.
なお、探傷開始前に、水柱内に気泡が存在しな
いよう気泡抜きのポペツト２４を指で押して気泡
抜きしておく必要があることは言うまでもない。 It goes without saying that before starting the flaw detection, it is necessary to press the poppet 24 with your finger to remove air bubbles so that there are no air bubbles in the water column.
本実施例に係る装置は、水柱ノズルによる水柱
結合方式を基本として、ノズル法での使用水量が
過大になる不具合をしきり膜および該しきり膜に
設けた細孔によつて水量の問題を改善し、表面波
探傷において最大の問題であつた余剰水の除去を
完全になし得るようにしたことを特徴とするもの
である。一方、しきり膜による被検材表面からの
反射、すなわち、表面エコーはその波形が若干拡
がるなどの不具合を生ずる可能性もあるが、これ
はゲート位置を若干近距離不感帯を拡げることに
よつて実探傷上全く支障を生ずることはない。 The device according to this embodiment is based on a water column coupling method using a water column nozzle, and solves the problem of excessive water usage in the nozzle method by using a diaphragm and pores provided in the diaphragm. This method is characterized by completely eliminating excess water, which is the biggest problem in surface wave flaw detection. On the other hand, the reflection from the surface of the test material due to the barrier film, that is, the surface echo, may cause problems such as the waveform being slightly expanded, but this can be solved by slightly expanding the short-range dead zone at the gate position. This will not cause any problems in flaw detection.
なお、第４図において、しきり膜１７に細孔１
９を設けて水柱からの流出水を絞る実施例を説明
したが、流出水を絞るのは細孔に限らず微小なス
リツトであつても同一の効果を得ることができ
る。 In addition, in FIG. 4, there are pores 1 in the barrier membrane 17.
Although an embodiment has been described in which water flowing out from the water column is squeezed by providing a hole 9, the same effect can be obtained not only by narrowing the flowing water but also by using a minute slit.
また、探触子ホールダ１１の内壁の断面形状並
びに水柱ノズル１３および外筒１５の断面形状
は、探触子１２の形状に対応した形状に適宜変形
し得るものであり、例えば探触子１２が円形であ
れば円形に、矩形であれば矩形あるいは小判形等
の形状にすればよい。 Further, the cross-sectional shape of the inner wall of the probe holder 11 and the cross-sectional shapes of the water column nozzle 13 and the outer cylinder 15 can be appropriately deformed to a shape corresponding to the shape of the probe 12. For example, when the probe 12 is If it is circular, it may be circular, and if it is rectangular, it may be rectangular or oval.
以上説明したように、本発明に係る装置は、以
下に列挙するような種々の効果が得られている。
As explained above, the device according to the present invention achieves various effects as listed below.
(i) 水柱結合方式であるから被検材と接触する面
積が小さく、被検材表面にうねりがあつても、
吸引の効果が変化しない。また、被検材表面が
曲面である場合も、曲率が大幅に変更されない
限り、ノズルおよび外筒を交換する必要が無
い。(i) Since it uses a water column bonding method, the contact area with the test material is small, so even if the test material surface has undulations,
The suction effect does not change. Further, even if the surface of the material to be inspected is a curved surface, there is no need to replace the nozzle and outer cylinder unless the curvature is significantly changed.
(ii) しきり膜が被検材表面に密着して探傷が行な
われるので、しきり膜と被検材表面との間に介
在する水量が微小量で済み、余剰水の処理が完
全に行ない得る。(ii) Since flaw detection is performed with the barrier film in close contact with the surface of the material to be inspected, the amount of water interposed between the barrier film and the surface of the material to be inspected is minimal, and excess water can be completely disposed of.
(iii) 水柱ノズルと外筒との間の環状空隙の面積を
小さくすることができるので、真空吸引の吸引
口が絞られるため吸引の効果が良く、余剰水の
排除が完全に行なわれる。(iii) Since the area of the annular gap between the water column nozzle and the outer cylinder can be reduced, the suction port for vacuum suction is narrowed, so the suction effect is good and excess water is completely removed.
第１図は従来の表面波探触子装置の一例を示す
断面図、第２図は第１図の表面波探触子装置を下
面側から見た図、第３図は本発明の一実施例に係
る表面波探触子装置の断面図、第４図は第３図の
水柱ノズル先端部の拡大説明図、第５図は第３図
の表面波探触子装置の給水系統概要図である。
１１……探触子ホールダ、１２……探触子、１
３……水柱ノズル、１４……給水孔、１５……外
筒、１５０……空隙、１７……しきり膜、１９…
…細孔。
Fig. 1 is a cross-sectional view showing an example of a conventional surface wave probe device, Fig. 2 is a view of the surface wave probe device of Fig. 1 viewed from the bottom side, and Fig. 3 is an embodiment of the present invention. A cross-sectional view of the surface wave probe device according to the example, FIG. 4 is an enlarged explanatory view of the tip of the water column nozzle in FIG. 3, and FIG. 5 is a schematic diagram of the water supply system of the surface wave probe device in FIG. be. 11...Probe holder, 12...Probe, 1
3...Water column nozzle, 14...Water supply hole, 15...Outer cylinder, 150...Gap, 17...Block membrane, 19...
…pore.
Claims (1)
た水柱結合とする表面波探触子装置であつて、 前記ノズルと僅かな空隙を隔てて同軸になるよ
うに嵌着される外筒を設けるとともに、 前記ノズル先端に微小なスリツト又は細孔を有
するしきり膜を設け、 前記空隙を吸引手段に連絡させ前記ノズル先端
からの流出水の余剰な残留水を吸引できるように
したことを特徴とする表面波探触子装置。[Scope of Claims] 1. A surface wave probe device in which the acoustic coupling between the probe and the specimen is water column coupling using a nozzle, the probe being coaxial with the nozzle and separated by a small gap. In addition to providing an outer cylinder that is fitted into the nozzle, a barrier membrane having minute slits or pores is provided at the tip of the nozzle, and the gap is connected to a suction means to suck out excess residual water from the water flowing out from the tip of the nozzle. A surface wave probe device characterized by being able to perform
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5448184A JPS60198452A (en) | 1984-03-23 | 1984-03-23 | Surface wave probe device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5448184A JPS60198452A (en) | 1984-03-23 | 1984-03-23 | Surface wave probe device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60198452A JPS60198452A (en) | 1985-10-07 |
| JPH0151940B2 true JPH0151940B2 (en) | 1989-11-07 |
Family
ID=12971846
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5448184A Granted JPS60198452A (en) | 1984-03-23 | 1984-03-23 | Surface wave probe device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60198452A (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5919884B2 (en) * | 2012-02-28 | 2016-05-18 | 日産自動車株式会社 | Dry type ultrasonic flaw detection inspection apparatus and method |
| JP5172032B1 (en) * | 2012-06-26 | 2013-03-27 | 株式会社日立エンジニアリング・アンド・サービス | Ultrasonic inspection apparatus and ultrasonic inspection method |
| US10082487B2 (en) | 2013-12-23 | 2018-09-25 | Posco | Apparatus and method for ultrasonic detection to detect flaws of steel plate |
| US9664652B2 (en) * | 2014-10-30 | 2017-05-30 | The Boeing Company | Non-destructive ultrasonic inspection apparatus, systems, and methods |
| EP4402467A4 (en) * | 2021-09-13 | 2025-08-06 | Evident Canada Inc | Local immersion with improved coverage for non-destructive testing (NDT) |
-
1984
- 1984-03-23 JP JP5448184A patent/JPS60198452A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60198452A (en) | 1985-10-07 |
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