JPS63259460A - Ultrasonic probe apparatus - Google Patents
Ultrasonic probe apparatusInfo
- Publication number
- JPS63259460A JPS63259460A JP9277187A JP9277187A JPS63259460A JP S63259460 A JPS63259460 A JP S63259460A JP 9277187 A JP9277187 A JP 9277187A JP 9277187 A JP9277187 A JP 9277187A JP S63259460 A JPS63259460 A JP S63259460A
- Authority
- JP
- Japan
- Prior art keywords
- ultrasonic
- ultrasonic probe
- flaw detection
- ultrasonic wave
- test material
- 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.)
- Pending
Links
- 239000000523 sample Substances 0.000 title claims abstract description 31
- 239000000463 material Substances 0.000 claims abstract description 48
- 238000001514 detection method Methods 0.000 claims abstract description 23
- 230000008878 coupling Effects 0.000 claims abstract description 10
- 238000010168 coupling process Methods 0.000 claims abstract description 10
- 238000005859 coupling reaction Methods 0.000 claims abstract description 10
- 238000005192 partition Methods 0.000 claims abstract 5
- 239000004033 plastic Substances 0.000 claims description 4
- 230000000903 blocking effect Effects 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 238000002592 echocardiography Methods 0.000 abstract description 2
- 239000011347 resin Substances 0.000 abstract 2
- 229920005989 resin Polymers 0.000 abstract 2
- 238000010586 diagram Methods 0.000 description 7
- 230000004888 barrier function Effects 0.000 description 4
- 238000002604 ultrasonography Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 235000013339 cereals Nutrition 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001902 propagating effect Effects 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 238000007920 subcutaneous administration Methods 0.000 description 1
Landscapes
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は・棒材、籾材等の表皮下に存在する欠陥、介
在物等を超音波斜角探傷によシ検出する超音波探触子装
置に関するものである。[Detailed Description of the Invention] [Field of Industrial Application] This invention is an ultrasonic probe that detects defects, inclusions, etc. existing under the skin of bars, rice grains, etc. by ultrasonic angle flaw detection. This is related to child devices.
#2図は例えば超音波探傷法(昭和49年 日刊工業新
聞社発行)K示された従来の超音波探触子装置を示す図
である。Figure #2 is a diagram showing a conventional ultrasonic probe device shown, for example, in the ultrasonic flaw detection method (1972, published by Nikkan Kogyo Shimbun).
!2図←)は超音波探触子装置の断面図、第2図(すは
従来の超音波探触子装置による探傷波形図である。! Figure 2 (←) is a sectional view of the ultrasonic probe device, and Figure 2 (←) is a flaw detection waveform diagram using a conventional ultrasonic probe device.
図において(1)は超音波探触子、(2)は超音波を送
受する振動子、(3)はバッキング材、(41は水、油
等からなる音響結合材、(5)は超音波のメインローブ
。In the figure, (1) is an ultrasonic probe, (2) is a transducer that transmits and receives ultrasonic waves, (3) is a backing material, (41 is an acoustic coupling material made of water, oil, etc.), and (5) is an ultrasonic wave probe. main lobe.
(61は超音波のサイドロープ、(7)は被検材、αは
被検材(71に対する超音波の入射角度、Cは被検材(
7ゝの中心、Tは送信パルス、 81は笛1回目の表
面エコー、82は俯2回目の表面エコー、Bはサイドロ
ープ(61による底面エコー、(81は探傷ゲートであ
る。(61 is the ultrasonic side rope, (7) is the material to be tested, α is the material to be tested (the incident angle of the ultrasound to 71, C is the material to be tested (
7, T is the transmission pulse, 81 is the surface echo of the first flute, 82 is the surface echo of the second tilt, B is the side rope (bottom echo by 61, (81 is the flaw detection gate).
従来の超音波探触子装置は上記のように構成されておシ
、被検材(7)の表皮下部分をできるだけ未探傷領域部
分を少なくして探傷検査を行うために。The conventional ultrasonic probe device is configured as described above in order to perform flaw detection on the subcutaneous part of the material to be inspected (7) by minimizing the undetected area as much as possible.
斜角探傷法が使用されるのが一般的である。斜角探傷法
は、被検材(71の中心Cを通る法線に対して所定の角
度αで超音波を入射させると、スネルの法則によシ入射
角度αに対応した屈折角が与えられるものである。The angle angle flaw detection method is generally used. In the angle angle flaw detection method, when an ultrasonic wave is incident at a predetermined angle α to the normal line passing through the center C of the test material (71), a refraction angle corresponding to the incident angle α is given according to Snell's law. It is something.
撮動子(2:から放射される超音波ビームにはメインロ
ーブ(5)とサイドローブ(61が存在し1通常の超音
波探傷ではメインローブ(5)で評価されている。There are a main lobe (5) and a side lobe (61) in the ultrasonic beam emitted from the sensor (2), and in normal ultrasonic flaw detection, the main lobe (5) is evaluated.
特に超音波自動探傷装置では、被検材(71表面と超音
波探触子装置との間を非接触で音vIFB合材(4)f
介して結合させるため、振動子(21から発生したサイ
ドローブ(6)成分が被検材())の中心Cに向ってほ
ぼ垂直に入射する条件が存在する拳がある。In particular, automatic ultrasonic flaw detection equipment uses a non-contact method to conduct sound vIFB composite material (4) f between the surface of the test material (71) and the ultrasonic probe device.
There is a condition in which the side lobe (6) component generated from the vibrator (21) is incident almost perpendicularly toward the center C of the test material (2).
上記条件は被検材(7)の外形寸法が小さいほど顕著と
なる。The above conditions become more pronounced as the outer dimensions of the test material (7) become smaller.
上記ニ示子ようにサイドローブ(61成分が被検材スフ
)の中心Cに向ってほぼ垂直に入射量ると、縦波超音波
として被検材()1中を伝播することになる・−万、メ
インローブ(5)は被検材(71の中を横波で伝播中る
ように入射角度αが設定されている超音波探触子装置で
は、送信パルスT以降の時間は全て被検材(71の横波
音速で超音波の伝播時間が設定。If the incident amount is almost perpendicular to the center C of the side lobe (the 61st component is the surface of the test material) as shown in the above example, it will propagate through the test material (2) as a longitudinal ultrasonic wave. - In an ultrasonic probe device in which the incident angle α is set so that the main lobe (5) propagates through the test material (71) as a transverse wave, the entire time after the transmitted pulse T is The propagation time of the ultrasonic wave is set at the transverse sound velocity of material (71).
あるいは計算されているため、第1回目の表面エコー8
1と第2回目の表面エコーS2との間に探傷ゲート(8
1を横波音速時間で設定しても、サイドローブ(6)成
分による縦波超音波が底面エコーBとして、メインロー
ブ(5)の横波超音波が被検材(7)の側面に1バウン
ドする時間より若干短い時間で発生するため、常にノイ
ズ成分として探傷ゲート(81に読み込まれ、sly比
を悪化させる問題があった。Or because it is calculated, the first surface echo 8
A flaw detection gate (8
Even if 1 is set as the shear wave sound velocity time, the longitudinal wave ultrasound due to the side lobe (6) component will bounce as bottom echo B, and the shear wave ultrasound from the main lobe (5) will bounce once to the side of the test material (7). Since it occurs in a slightly shorter period of time, it is always read into the flaw detection gate (81) as a noise component, causing the problem of deteriorating the sly ratio.
この発明は上記問題点を解決するためになすれたもので
、サイドローブ成分を被検材中に入射させないでS /
N比の良い超音波探触子装置を得ることを目的とする
。This invention was made in order to solve the above problem, and it is possible to prevent the sidelobe components from entering the specimen material by S/
The purpose is to obtain an ultrasonic probe device with a good N ratio.
c問題点を解決中るための手段〕
この発明による超音波探触子装置は、超音波の伝播方向
に対して、後方面に、プラスチック、ゴム材等の音響イ
ンピーダンスが比較的小ζい材料から成るしき、be、
Yr、 メインローブは遮断せずにサイドローブのみ
f!断する位置に取付けたものである。Means for Solving Problem c] The ultrasonic probe device according to the present invention has a material having relatively low acoustic impedance such as plastic or rubber material on the rear surface with respect to the propagation direction of the ultrasonic wave. consisting of shiki, be,
Yr, main lobe is not blocked, only side lobe is f! It is installed in the position where it is cut off.
この発明においては、超音波の伝播方向に、対して、後
方面にしき夛板が取付けられ、上記しき夛板はメインロ
ーブは遮断せずに、サイドローブのみf遮断するような
位置に固定しであるため、被検材の中心に向ってほぼ垂
直に入射する縦波超音波成分は被検材中に入射しなくな
る。したがって。In this invention, a barrier plate is attached to the rear surface in the propagation direction of the ultrasonic wave, and the barrier plate is fixed at a position such that it blocks only the side lobes without blocking the main lobe. Therefore, the longitudinal ultrasonic wave component that is incident almost perpendicularly toward the center of the test material no longer enters the test material. therefore.
探傷波形図においても、探傷ゲート中に縦波超音波によ
るノイズ成分は発生しない超音波探触子装置となシ得る
。Also in the flaw detection waveform diagram, an ultrasonic probe device can be obtained in which noise components due to longitudinal ultrasonic waves are not generated during the flaw detection gate.
第1図はこの発明の一実施fllを示す超音波探触子装
置2を示す図である。FIG. 1 is a diagram showing an ultrasonic probe device 2 showing one embodiment of the present invention.
第1図(a)は超音波探触子装置の断面図、第1図(1
))はこの発明の超音波探触子装置による探傷波形図で
ある。Figure 1 (a) is a cross-sectional view of the ultrasonic probe device;
)) is a flaw detection waveform diagram by the ultrasonic probe device of the present invention.
図において(11は超音波探触子、(2)は振動子、(
3Iはバッキング材、(4)は音響結合材、(5)はメ
インローブ、(6)はサイドローブ、(7Iは被検材、
(81は探傷ゲート、(91けこの発明によるプラスチ
ック、ゴム材等から成るしき夛板、αは被検材(71へ
の超音波入射角度、Cは被検材+71の中心、Tは送信
パルス。In the figure, (11 is an ultrasonic probe, (2) is a transducer, (
3I is the backing material, (4) is the acoustic coupling material, (5) is the main lobe, (6) is the side lobe, (7I is the test material,
(81 is a flaw detection gate, (91 is a shield plate made of plastic, rubber, etc. according to the invention of Keko), α is the ultrasonic incident angle on the test material (71, C is the center of the test material + 71, T is the transmission pulse .
81は第1回目の表面エコー、 s2は12回目の表
面エコーである。81 is the first surface echo, and s2 is the 12th surface echo.
上記のように構成された超音波探触子装置においては、
振動子(2+から放射された超音波のメインローブ(5
)、および、サイドローブ(6)は音響結合材(4)を
経由して、被検材(71の表面に伝播する。この時に、
超音波の伝播方向に対して、後方面に、メインローブ(
51J′ig断せずに、サイドローブ161のみを遮断
する位置にしきC& (91f設けているため。In the ultrasonic probe device configured as above,
The main lobe of the ultrasound emitted from the transducer (2+)
) and the side lobe (6) propagate to the surface of the test material (71) via the acoustic coupling material (4).At this time,
The main lobe (
51J'ig is not cut off, but only the side lobe 161 is cut off because the threshold C& (91f is provided).
メインローブ(5)は被検材(7)の中に所定の角度で
入射し、横波超音波として伝播する。一方、サイドロー
ブ(6)は音響結合材(4)中で、しき夛板(9)に到
達し、一部はしき多板19)内に吸収されるが、?!!
とんどけ音響結合材(4!に反射されるため、被検材(
7)の中心部Cに向って伝播する縦波超音波は存在しな
くなる。その結果、探傷波形図においても、第1回目の
表面エコー81と雛2回目の表面エコーS2との間には
縦波超音波によるノイズエコーは発生しないことになる
9
又、超音波探触子装置(1)と被検材(7)表面との距
離は、探傷ゲートC8)の中に第2回目の表面エコー6
2が入らないように設定する必要があ)、一般的に使わ
れる被検材(7)中の超音波屈折角が45°の場合で、
O,SX外形寸法程度の距離が必袂となる。The main lobe (5) enters the test material (7) at a predetermined angle and propagates as a transverse ultrasonic wave. On the other hand, the side lobe (6) reaches the barrier plate (9) in the acoustic coupling material (4) and is partially absorbed into the barrier plate 19), but? ! !
Tondoke acoustic coupling material (4! Because it is reflected by the test material (
7) The longitudinal ultrasonic wave propagating toward the center C no longer exists. As a result, in the flaw detection waveform diagram, no noise echo due to longitudinal ultrasonic waves is generated between the first surface echo 81 and the second surface echo S2 of the chick9. The distance between the device (1) and the surface of the material to be tested (7) is determined by the second surface echo 6 inside the flaw detection gate C8).
2), and the ultrasonic refraction angle in the commonly used test material (7) is 45°.
A distance approximately equal to the external dimensions of O and SX is required.
この発明は以上説明したように、外形形状が円筒状の被
検材において、上記被検材の円周方向に斜めに超音波を
入射させる超音波探触子装置において、音響結合材中に
おいて、M音波の伝播方向に対して、後方面にブ2スチ
ック、ゴム材等から成るしきfi&を、メインローブは
遮断せず1サイドロープのみをs所する位置に取付けた
ことにょシ、サイドローブが被検材の中心部分に向って
垂直に入射することを防止中る事が可能となる。As explained above, the present invention provides an ultrasonic probe device that obliquely injects ultrasonic waves in the circumferential direction of a test material having a cylindrical outer shape, in an acoustic coupling material, With respect to the propagation direction of the M sound wave, if a shield made of plastic, rubber, etc. is installed on the rear surface in a position that does not block the main lobe but only connects one side rope, the side lobe It is possible to prevent the light from entering perpendicularly toward the center of the specimen.
その結果、被検材中で縦波超音波が発生しないため、第
1回目の表面エコー81と第2回目の表面エコーS2と
の間にノイズ成分となるエコーは発生せず、S/N比の
良い超音波探触子装置を供給できる効果がある。As a result, since no longitudinal ultrasonic waves are generated in the test material, no echoes that become noise components are generated between the first surface echo 81 and the second surface echo S2, and the S/N ratio This has the effect of supplying a good ultrasonic probe device.
第1図(a)はこの発明による超音波探触子装置の断面
図、第1図の)はこの発明による超音波探触子装置によ
る探傷波形図、銅2図(a)は従来の超音波探触子装置
の断面図、茶2図(b)は従来の超音波探触子装置によ
る探傷波形図である。
図において(1)は超音波探触子、(21は振動子、(
41は音響結合材、(5]は超音波のメインローブ、(
6)は超音波のサイドローブ、(7Iは被検材、(9)
はしきυ板である。
尚、各図中同一符号は同−又は相当部分?示している。
l 超+汲繊琳÷
第 1 !10 4 考1ル浴核」−
m−ヒト1
第 2 図
(α)
ゴT]−Fig. 1(a) is a cross-sectional view of the ultrasonic probe device according to the present invention, Fig. 1) is a flaw detection waveform diagram by the ultrasonic probe device according to the present invention, and Fig. 2(a) is a cross-sectional view of the ultrasonic probe device according to the present invention. The cross-sectional view of the sonic probe device, Fig. 2(b), is a flaw detection waveform chart by a conventional ultrasonic probe device. In the figure, (1) is an ultrasonic probe, (21 is a transducer, (
41 is the acoustic coupling material, (5) is the main lobe of the ultrasonic wave, (
6) is the ultrasonic sidelobe, (7I is the test material, (9)
It is a Hashiki υ board. In addition, are the same symbols in each figure the same or equivalent parts? It shows. l super + 汲琳琳÷ 1st! 10 4 Thoughts 1: Bath Nucleus” -
m-Human 1 Figure 2 (α) GoT]-
Claims (1)
斜めに超音波を入射させ、かつ、上記被検材と超音波探
触子との間におおよそ0.5×外形寸法程度の距離空間
を設け、上記距離空間に、水、油等の音響結合材を充満
させて超音波斜角探傷法を行う超音波探触子装置におい
て、超音波の伝播方向に対して、後方面にプラスチック
、ゴム材等から成るしきり板を、メインローブは遮断せ
ずに、サイドローブのみを遮断する位置に取付けた事を
特徴とする超音波探触子装置。The outer shape of the test material is cylindrical, and the ultrasonic wave is obliquely incident in the circumferential direction of the test material, and there is a space between the test material and the ultrasonic probe of approximately 0.5 x external shape. In an ultrasonic probe device that performs ultrasonic angle flaw detection by providing a distance space of about the same size and filling the distance space with an acoustic coupling material such as water or oil, with respect to the propagation direction of the ultrasonic wave, An ultrasonic probe device characterized in that a partition plate made of plastic, rubber, etc. is attached to the rear surface in a position that blocks only the side lobes without blocking the main lobes.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9277187A JPS63259460A (en) | 1987-04-15 | 1987-04-15 | Ultrasonic probe apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9277187A JPS63259460A (en) | 1987-04-15 | 1987-04-15 | Ultrasonic probe apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS63259460A true JPS63259460A (en) | 1988-10-26 |
Family
ID=14063683
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9277187A Pending JPS63259460A (en) | 1987-04-15 | 1987-04-15 | Ultrasonic probe apparatus |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS63259460A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19804298B4 (en) * | 1998-02-04 | 2006-12-07 | Krautkrämer GmbH & Co | Method for ultrasonic testing with echo start and device therefor |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60140154A (en) * | 1983-12-28 | 1985-07-25 | Toyota Central Res & Dev Lab Inc | Ultrasonic inspection apparatus |
-
1987
- 1987-04-15 JP JP9277187A patent/JPS63259460A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60140154A (en) * | 1983-12-28 | 1985-07-25 | Toyota Central Res & Dev Lab Inc | Ultrasonic inspection apparatus |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19804298B4 (en) * | 1998-02-04 | 2006-12-07 | Krautkrämer GmbH & Co | Method for ultrasonic testing with echo start and device therefor |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US5431054A (en) | Ultrasonic flaw detection device | |
EP0826148B1 (en) | Ultrasonic inspection | |
US3576126A (en) | Ultrasonic bond tester | |
JPS58500674A (en) | Ultrasonic rail test method | |
JPH08502585A (en) | Ultrasonic inspection head and operating method thereof | |
JPS59208457A (en) | Method and apparatus for transmitting and receiving ultrasonic wave | |
JP6797788B2 (en) | Ultrasonic probe | |
JPS63259460A (en) | Ultrasonic probe apparatus | |
JP2630393B2 (en) | Ultrasonic flaw detector | |
JP2630392B2 (en) | Ultrasonic flaw detector | |
JPH08271488A (en) | Method for evaluating quality of frpm pipe | |
WO2019150953A1 (en) | Ultrasonic probe | |
US5280722A (en) | Method and apparatus for indicating disbonds in joint regions | |
JPH0364833B2 (en) | ||
JP2002071332A (en) | Probe for measurement thickness of clad steel ply material | |
JP2605396B2 (en) | Ultrasonic probe | |
JP2978708B2 (en) | Composite angle beam probe | |
JPH0375557A (en) | Ultrasonic probe | |
JPH0675062B2 (en) | Ultrasonic probe device | |
JPS6110204Y2 (en) | ||
JPH1164300A (en) | Ultrasonic probe and ultrasonic flaw detecting apparatus | |
JPH0116043Y2 (en) | ||
JPH08201352A (en) | Ultrasonic probe for oblique flaw detection | |
JP2755126B2 (en) | Tire type ultrasonic probe | |
JPS63184054A (en) | Ultrasonic probe |