JPS60256054A - Ultrasonic flaw detection system - Google Patents
Ultrasonic flaw detection systemInfo
- Publication number
- JPS60256054A JPS60256054A JP59112554A JP11255484A JPS60256054A JP S60256054 A JPS60256054 A JP S60256054A JP 59112554 A JP59112554 A JP 59112554A JP 11255484 A JP11255484 A JP 11255484A JP S60256054 A JPS60256054 A JP S60256054A
- Authority
- JP
- Japan
- Prior art keywords
- data
- flaw detection
- probe
- flaw
- ultrasonic flaw
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y15/00—Nanotechnology for interacting, sensing or actuating, e.g. quantum dots as markers in protein assays or molecular motors
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/22—Details, e.g. general constructional or apparatus details
- G01N29/26—Arrangements for orientation or scanning by relative movement of the head and the sensor
- G01N29/265—Arrangements for orientation or scanning by relative movement of the head and the sensor by moving the sensor relative to a stationary material
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/22—Details, e.g. general constructional or apparatus details
- G01N29/30—Arrangements for calibrating or comparing, e.g. with standard objects
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- Chemical & Material Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Immunology (AREA)
- Biochemistry (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- Nanotechnology (AREA)
- Molecular Biology (AREA)
- Crystallography & Structural Chemistry (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
Description
【発明の詳細な説明】
（発明の技術分野）
本発明は超音波探傷システムに関し、殊に、手動走査装
置、超音波探傷器及びデータ収録装置と、これら各構成
要素より別個独立に設けたデータ処理装置とからなる超
音波探傷システムに関゛４る（−ンのである。DETAILED DESCRIPTION OF THE INVENTION (Technical Field of the Invention) The present invention relates to an ultrasonic flaw detection system, and in particular to a manual scanning device, an ultrasonic flaw detector, a data recording device, and a data recording system provided separately and independently from each of these components. This article concerns an ultrasonic flaw detection system consisting of a processing device.
（従来技術とその問題点）
従来より、探触子を自動的に走査して、被検材の溶接部
に内在する融合不良、割れ、空孔、介イ（物等の欠陥の
位置をめ、探傷結果の判定を自ＩＪ＋化した、所謂自動
超音波探傷装回は既知ｒある。(Prior art and its problems) Traditionally, a probe has been automatically scanned to locate defects such as poor fusion, cracks, holes, and inclusions (objects, etc.) in the welded part of the test material. There are known so-called automatic ultrasonic flaw detection systems in which the judgment of flaw detection results is automatically performed using IJ+.
しかし、この自動超音波探傷システムは、コンピュータ
を利用した自動シークンス制御を採用し、自動走査装置
より得られた膨大な探傷データを高速処理するので、探
傷作業処理の効率は極めて良い反面、同一箇所を繰返し
て検査確認することが不可能であるから、探傷結果の信
頼性は、手探像よりも劣る。また、手探像に比して、電
源部が人形で、設備費が高価となるほか、重量的に重く
、探傷現場への移動は不可能に等しい、という問題点が
あった。一方、手探像は、検査員の目視による、欠陥指
示、欠陥とノイズとの識別、表面状！！；の確認等、十
分な確認が可能であり、かつ、同一・箇所を繰返して検
査確認することが可能であるから、信頼性の高い探傷結
果が慢られるという利点がある。However, this automatic ultrasonic flaw detection system uses automatic sequence control using a computer and processes the huge amount of flaw detection data obtained from the automatic scanning device at high speed, so the flaw detection processing efficiency is extremely high. Since it is impossible to repeatedly inspect and confirm the defects, the reliability of the flaw detection results is inferior to that of manual inspection. In addition, compared to manual detection, the power supply unit is a doll, which makes the equipment expensive and heavy, making it almost impossible to transport to the flaw detection site. On the other hand, manual inspection allows the inspector to visually inspect defects, identify defects and noise, and check the surface condition! ! It is possible to make sufficient checks such as; and to repeatedly test and confirm the same location, so there is an advantage that highly reliable flaw detection results can be obtained.
（発明の目的）
本発明は、上述のような事情に鑑みなされたもので、探
傷方法として手探傷を採用し、しかも、手動走査装置、
超音波探傷器及びデータ収録装置を探傷現場に持込み可
能にし、斯かる現場で探傷した生の探傷データを、前記
各装置から分離独立せしめたデータ処理装置にかけるこ
とにより、探傷データの高速処理と信頼性の高い探傷結
果を得ることのできる、言わば、従来の自動超音波探傷
装置が有する利点と手探傷が有する利点を取入れた、超
音波探傷システムを提供することを目的とするものであ
る。(Object of the Invention) The present invention was made in view of the above-mentioned circumstances, and employs manual flaw detection as a flaw detection method, and furthermore, uses a manual scanning device,
By making it possible to bring an ultrasonic flaw detector and a data recording device to the flaw detection site, and applying the raw flaw detection data detected at the site to a data processing device that is separate and independent from each of the devices, high-speed processing of the flaw detection data can be achieved. It is an object of the present invention to provide an ultrasonic flaw detection system that can obtain highly reliable flaw detection results, so to speak, which incorporates the advantages of conventional automatic ultrasonic flaw detection equipment and the advantages of manual flaw detection.
（発明の構成と効果）
上記の目的を達成するために、本発明の超音波探傷シス
テムは、探触子を備えた手動走査装置と、この手動走査
装置の探触子へ超音波を伝送し反射エコー信号を受信し
探傷データを出力する超音波探傷器と、この超音波探傷
器より探傷データを受込み、これらを外部記憶媒体に収
録するデータ収録装置と、このデータ収録装置の外部記
憶媒体に収録したデータを処理づるための、前記各構成
要素より別個独立に分離離間して所定箇所に設けたデー
タ処理Ｓ装置と、から構成されている。(Structure and Effects of the Invention) In order to achieve the above object, the ultrasonic flaw detection system of the present invention includes a manual scanning device equipped with a probe and transmitting ultrasonic waves to the probe of the manual scanning device. An ultrasonic flaw detector that receives reflected echo signals and outputs flaw detection data, a data recording device that receives flaw detection data from this ultrasonic flaw detector and records them on an external storage medium, and an external storage medium of this data recording device. A data processing device S is provided at a predetermined location separately and separately from each of the above-mentioned components to process data recorded in the data processing system.
本発明の超音波探傷システムは１．上記構成のように、
探触子を備えた手動走査装置、超音波探傷器、データ収
録′ｌ装置よりデータ処理装置を分離したので、これら
が一体化された大重量の従来のものでは不可能に等しか
った探傷現場への移動が、容易となり、被検材の移動と
いう不便さを解消することができる。また、従来のもの
はデータ収録部がデータ処理装置に一体に組込まれてい
たが、本発明では、これらを分離したので、一台のデー
タ処理装置に対して複数台のデータ収録装置よりの収録
データの処理が可能となった。従って、トータルシステ
ムとしてみた場合、従来のものよりは経済的である。The ultrasonic flaw detection system of the present invention includes 1. As in the above configuration,
Since the data processing device is separated from the manual scanning device equipped with a probe, ultrasonic flaw detector, and data recording device, it can be used in flaw detection sites that would have been impossible with the heavy weight conventional devices that integrate these devices. The movement of the test material becomes easy, and the inconvenience of moving the test material can be eliminated. In addition, in the conventional system, the data recording section was integrated into the data processing device, but in the present invention, these are separated, so that recording from multiple data recording devices for one data processing device is possible. It is now possible to process data. Therefore, when viewed as a total system, it is more economical than the conventional system.
（発明の実施例） 以下、実施例により本発明を更に詳細に説明する。(Example of the invention) Hereinafter, the present invention will be explained in more detail with reference to Examples.
第１図は本発明の一実施例を示す超音波探傷システム全
体の図解図である。この超音波探傷システムは、探触子
１１を備え／ｊ手動走査装置１０と、この探触子１１へ
伝送線５０を介して超音波を伝送し、反射エコー信号を
受信する超音波探傷器２０と、この超音波探傷器２０に
りの探傷データを伝送線５１を介して取込むと共に前記
手動走査装置１０の探触子位岡データを伝送線５２を介
して取込み、これら探傷データと探触子位置データを外
部記憶媒体に収録するデータ収録装置３０と、このデー
タ収録装置３０の外部記憶媒体の収録データを処理し、
ＪＩＳｍ格に基づく等綴付けをするデータ処理装置４０
と、を備えている。このデータ処理装Ｗ！Ｉ４０は前記
各装置１０．２０．３０とは別個独立に分１１１１１１
間されて、例えばデータ処理室等所定箇所に適宜に設置
されている。尚、６０は被検材、６１は溶接部である。FIG. 1 is an illustrative diagram of the entire ultrasonic flaw detection system showing one embodiment of the present invention. This ultrasonic flaw detection system includes a probe 11, a manual scanning device 10, and an ultrasonic flaw detector 20 that transmits ultrasonic waves to the probe 11 via a transmission line 50 and receives reflected echo signals. Then, the flaw detection data from the ultrasonic flaw detector 20 is taken in through the transmission line 51, and the probe position data from the manual scanning device 10 is taken in through the transmission line 52, and these flaw detection data and the flaw detection data are taken in through the transmission line 52. a data recording device 30 that records child position data on an external storage medium; and a data recording device 30 that processes recorded data on the external storage medium of the data recording device 30;
Data processing device 40 that performs spelling based on JISm case
It is equipped with. This data processing device W! I40 is separate and independent from each of the above-mentioned devices 10.20.30.
For example, it is installed at a predetermined location such as a data processing room. In addition, 60 is a test material and 61 is a welded part.
第２図は本発明の一実施例を示す超音波探傷システムの
１０ツク図である。同図において、手動走査装置１０は
、探触子１１を備え、この探触子１１を挿着してい、る
軸（θ軸）１２の首振り角度と、このθ軸１２の取付り
られたＹ軸１３の移動帛と、このＹ軸１３の摺動を司る
Ｘ軸１４の移動像とをデータ収録装置３０に出力する（
第１図参照）。超音波探傷器２０は、探触子１１を介し
て戻ってくる反射エコー信号に基づき傷の解析を行い、
これをＣＨ２表示し、ビーム路程とエコー高さからなる
探傷データをデータ収録装置３０に出力する。このデー
タ収録装ｗ３０は、ＣＰＵ３１を備え、このＣＰｔＪ３
１に連繋しで、前記θ軸の首振り角度、Ｙ軸移動量、Ｘ
＊移動１１（以下、これらを総称して探触子位置データ
という。）と、探傷データとを取込むための入力インタ
ーフェース３２、それに内部記憶装置（メモリ）３３、
それに前記探触子位置データと探傷データとを例えばカ
セットテープあるいはフＯツビディスク等の外部記憶媒
体３４に収録するための、トランスボートエレクトロニ
クス部等を有する、例えばカセツ１−デーゾインクフ」
−−ス３５を備えている。データ処理装置Ｗ ４．０は
、ＣＲＴを有刃゛るマイクロコンビニｌ−タ４１ど、所
要のデータをプリントアラ１へするプリンタ４２と、欠
陥開先断面（横及び縦）位置図や欠陥平面位置図等を出
力するＸ−Ｙプロッタ４３と、を備えている。FIG. 2 is a ten-step diagram of an ultrasonic flaw detection system showing one embodiment of the present invention. In the figure, a manual scanning device 10 is equipped with a probe 11, and the swing angle of an axis (θ-axis) 12 to which the probe 11 is inserted, The moving image of the Y-axis 13 and the moving image of the X-axis 14 that controls the sliding movement of the Y-axis 13 are output to the data recording device 30 (
(See Figure 1). The ultrasonic flaw detector 20 analyzes flaws based on the reflected echo signals returned via the probe 11.
This is displayed on CH2, and flaw detection data consisting of the beam path and echo height is output to the data recording device 30. This data recording device w30 is equipped with a CPU31, and this CPtJ3
1, the swing angle of the θ-axis, the amount of Y-axis movement, and the
*Input interface 32 for importing movement 11 (hereinafter collectively referred to as probe position data) and flaw detection data, and internal storage device (memory) 33;
It also has a transport electronics section or the like for recording the probe position data and flaw detection data on an external storage medium 34 such as a cassette tape or a disc.
--Equipped with a space 35. The data processing device W 4.0 includes a printer 42, such as a microconvenience store computer 41 with a CRT blade, which sends necessary data to the printer 1, and a defect groove cross-sectional (horizontal and vertical) position map and a defect plane. It is equipped with an X-Y plotter 43 that outputs a position map and the like.
次に、上記実施例における超音波探傷システムの動作を
、第３図に示すフローチャートで説明する。Next, the operation of the ultrasonic flaw detection system in the above embodiment will be explained with reference to the flowchart shown in FIG.
先ず、電源をＯＮＬだ後、第１図に示すように、被検材
６０の溶接線６２上に適宜の間隔をとって基準点くΔ点
、８点）を印す（ＳＴ１）。次いで、被検材６０の探傷
面に、例えば油、水、グリセリン等の接触媒質を塗布し
て、探触子１１と探傷面との開のすきまをなくするよう
にする（ＳＴ２）。First, after turning the power ONL, as shown in FIG. 1, reference points (Δ points, 8 points) are marked on the weld line 62 of the test material 60 at appropriate intervals (ST1). Next, a couplant such as oil, water, or glycerin is applied to the flaw detection surface of the test material 60 to eliminate the gap between the probe 11 and the flaw detection surface (ST2).
そして、手動走査装置１ｏに探触子１１をセットしく５
Ｔ３）、・この探触子１１のセットされた手動走査装置
１０を被検材６０上にセットする（Ｓ７４）。次いで、
被検査材６０に探触子１１が滑かに接触するか否かをチ
ェックする（ＳＴ５）。Then, set the probe 11 on the manual scanning device 1o.
T3), - The manual scanning device 10 with the probe 11 set thereon is set on the specimen 60 (S74). Then,
It is checked whether the probe 11 smoothly contacts the inspected material 60 (ST5).
滑かに接触しな１ノればＳＴ２に戻り、再度前記の処理
を行う。滑かに接触する場合はＳＴ６に進む。If there is no smooth contact, the process returns to ST2 and the above process is performed again. If the contact is smooth, proceed to ST6.
このＳＴ６では、探触子１１の入射点を基準点（Ａ点）
に合わせ、首振り角度をθ軸１２の０度目盛にセットす
る。In this ST6, the incident point of the probe 11 is the reference point (point A).
, and set the swing angle to the 0 degree scale of the θ-axis 12.
次いで、データ収録装置３０にお（′Ｊる手動走査装置
１０のスケール基準点をセット（ＳＴ７）ｔ。Next, the scale reference point of the manual scanning device 10 is set on the data recording device 30 (ST7).
た後、探触子１１の入射点を基準点（８点）に合わせ（
ＳＴ８）、この８点の座標をデータ収録装置３０に取込
む（ＳＴ９）。しかる後、探触子１１をジグザグに走査
する手探傷を開始する（ＳＴ１０）。すると、超音波探
傷器２０から探触子１１を介して被検材６０内部へ超音
波パルスが発射される（ＳＴＩ １ ）。そうして、被
検Ｏ’ ６０の溶接部６１部の欠陥（傷）に当った超音
波エコー信号が探触子１１を介して電気信号に変換され
て超音波探傷器２０に戻ってくる（ＳＴ１２＞。この超
音波探傷器２０では、戻ってぎた所謂反射工］−信号を
基にして傷の解析を行い、これをＣＲＴに表示するとと
もに、探傷データ（ビーム路程、エコー高さ）をデータ
収録装置３ｏへ出力する（ＳＴ１３）。このデータ収録
装置３０のＣＰＵ３１は、前記探傷データが有効傷であ
るか否かの判断を行う（ＳＴ１４）。有効傷でなければ
５Ｔ１０の処理に戻り、前記の各動作が繰返される。有
効傷であれば、その時の手動走査装置１ｏがらの探触、
吊位置データ（Ｘ軸移動量、Ｙ軸移動量、θ軸の首振り
角度）を読込む（ＳＴ１５）。そして前記ＣＰＵ３１は
、更にこの探触子位置データが前回のデータであるか否
かの判断を行う（Ｓ Ｔ １６）。After that, align the incident point of the probe 11 with the reference points (8 points) (
ST8), the coordinates of these eight points are taken into the data recording device 30 (ST9). After that, manual flaw detection in which the probe 11 is scanned in a zigzag pattern is started (ST10). Then, an ultrasonic pulse is emitted from the ultrasonic flaw detector 20 into the test material 60 via the probe 11 (STI 1 ). Then, the ultrasonic echo signal that hits the defect (flaw) in the welded part 61 of the test object O' 60 is converted into an electrical signal via the probe 11 and returned to the ultrasonic flaw detector 20 ( ST12>.This ultrasonic flaw detector 20 analyzes the flaws based on the so-called reflector signal that has returned and displays this on the CRT, as well as the flaw detection data (beam path, echo height). The data is output to the recording device 3o (ST13).The CPU 31 of the data recording device 30 determines whether or not the flaw detection data is a valid flaw (ST14).If it is not a valid flaw, the process returns to 5T10 and the Each operation is repeated.If the wound is valid, the manual scanning device 1o is used to probe the wound.
The hanging position data (X-axis movement amount, Y-axis movement amount, θ-axis swing angle) is read (ST15). Then, the CPU 31 further determines whether or not this probe position data is the previous data (S T 16).
前回のものであれば、５Ｔ１０の処理に戻る。前回のも
のでな１ノれば、データ収録Ｉ装置３ｏの内部記憶装置
３３に、この探触子位置データとその時の探傷データを
取込む（ＳＴ１７）。そして、上記のような処理・操作
が被検材６ｏの溶接部６１全域について終了しＣいるか
否か判断しく５Ｔ１８）、終了していなければ、５Ｔ１
０の処理に戻り溶接部６１全域に亙って手探傷の処理・
操作を行う。終了していれば、前記内部記憶装置３３に
格納されている探傷データと探触子位置データを、力は
ットテーブあるいはフロッピディスクなどの外部配憶媒
体３４に収録する（ＳＴ１９）。If it is the previous one, the process returns to 5T10. If it is not the previous one, this probe position data and the flaw detection data at that time are loaded into the internal storage device 33 of the data recording I device 3o (ST17). Then, it is determined whether the above-mentioned processing/operation has been completed for the entire area of the welded part 61 of the test material 6o (5T18), and if not, 5T1
Returning to step 0, manual flaw detection was performed over the entire area of the welded part 61.
Perform operations. If completed, the flaw detection data and probe position data stored in the internal storage device 33 are recorded on an external storage medium 34 such as a hard disk or floppy disk (ST19).
上述のようにして、探傷現場にＪ３いて、探傷データど
探触子位置データ、所謂生データを外部記憶媒体３４に
収録する。そして、この生データの収録された外部記憶
媒体３４を探傷現場より持ち帰り、この外部記憶媒体３
４をデータ処理装置４０にかけて、ＪＩＳ規格に基づく
欠陥の等綴付けを行うと共に、欠陥開先断面（横及び１
ｉ１）位置図や欠陥平面位置図その他のデータ資料等を
作成する。As described above, the J3 is at the flaw detection site and records the flaw detection data, probe position data, and so-called raw data in the external storage medium 34. Then, the external storage medium 34 containing this raw data is brought back from the flaw detection site, and this external storage medium 3
4 is applied to the data processing device 40 to record the defects based on the JIS standard, and also to record defect groove cross sections (horizontal and
i1) Create location maps, defect plane location maps, and other data materials.
図面は本発明に係る超音波探傷システムの一実施例を示
すもので、第１図は超音波探傷システム全体の図解図、
第２図は同システムのブロック図、第３図は同システム
の動作を説明するためのフローチャートである。
１０・・・手動走査装置、１１・・・探触子、１２・・
・θ軸、１３・・・Ｙ軸、１４・・・Ｘ軸、２０・・・
超音波探傷器、３０・・・データ収録装置、４０・・・
データ処庁装百、５０，５１．５２・・・伝送線、６０
・・・被検材、６１・・・溶接部、６２・・・溶接線。
特許出願人 立石電機株式会社The drawings show an embodiment of the ultrasonic flaw detection system according to the present invention, and FIG. 1 is an illustrative diagram of the entire ultrasonic flaw detection system;
FIG. 2 is a block diagram of the system, and FIG. 3 is a flowchart for explaining the operation of the system. 10... Manual scanning device, 11... Probe, 12...
・θ axis, 13...Y axis, 14...X axis, 20...
Ultrasonic flaw detector, 30...Data recording device, 40...
Data processing agency 100, 50, 51.52...transmission line, 60
...Test material, 61...Welded part, 62...Weld line. Patent applicant Tateishi Electric Co., Ltd.
Claims (1)
触子へ超音波を伝送し反射エコー信号を受信し探傷デー
タを出力する超音波探傷器と、この超音波探傷器より探
傷データを受信し前記手動走査装置より探触子の位置デ
ータを取込み、これらを外部記憶媒体に収録するデータ
収録装−と、このデータ収録装置の外部記憶媒体に収録
したデータを処理するための、前記各構成要素より別個
独立に分離り離間して所定箇所に設けたデータ処理装置
と、からなることを特徴とする超音波探傷システム。A manual scanning device equipped with a probe; an ultrasonic flaw detector that transmits ultrasonic waves to the probe of the manual scanning device, receives reflected echo signals, and outputs flaw detection data; a data recording device for receiving the position data of the probe from the manual scanning device and recording the data on an external storage medium; and a data recording device for processing the data recorded on the external storage medium of the data recording device. An ultrasonic flaw detection system comprising: a data processing device provided at a predetermined location separately and separately from each component.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59112554A JPS60256054A (en) | 1984-06-01 | 1984-06-01 | Ultrasonic flaw detection system |
| US07/021,576 US4742713A (en) | 1984-06-01 | 1987-03-02 | Ultrasonic flaw detecting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59112554A JPS60256054A (en) | 1984-06-01 | 1984-06-01 | Ultrasonic flaw detection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60256054A true JPS60256054A (en) | 1985-12-17 |
Family
ID=14589565
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59112554A Pending JPS60256054A (en) | 1984-06-01 | 1984-06-01 | Ultrasonic flaw detection system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60256054A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103018339A (en) * | 2011-09-22 | 2013-04-03 | 北京理工大学 | High-speed high-precision ultrasonic microscopic scanning device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5990045A (en) * | 1982-11-15 | 1984-05-24 | Power Reactor & Nuclear Fuel Dev Corp | Manual type supersonic wave flaw detecting apparatus |
-
1984
- 1984-06-01 JP JP59112554A patent/JPS60256054A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5990045A (en) * | 1982-11-15 | 1984-05-24 | Power Reactor & Nuclear Fuel Dev Corp | Manual type supersonic wave flaw detecting apparatus |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103018339A (en) * | 2011-09-22 | 2013-04-03 | 北京理工大学 | High-speed high-precision ultrasonic microscopic scanning device |
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