JPS599858B2 - Rotating non-destructive testing equipment - Google Patents
Rotating non-destructive testing equipmentInfo
- Publication number
- JPS599858B2 JPS599858B2 JP50098152A JP9815275A JPS599858B2 JP S599858 B2 JPS599858 B2 JP S599858B2 JP 50098152 A JP50098152 A JP 50098152A JP 9815275 A JP9815275 A JP 9815275A JP S599858 B2 JPS599858 B2 JP S599858B2
- Authority
- JP
- Japan
- Prior art keywords
- rotating
- destructive testing
- rotor
- test
- testing equipment
- 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
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
- G01N29/26—Arrangements for orientation or scanning by relative movement of the head and the sensor
-
- 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
- G01N29/06—Visualisation of the interior, e.g. acoustic microscopy
- G01N29/0609—Display arrangements, e.g. colour displays
- G01N29/0618—Display arrangements, e.g. colour displays synchronised with scanning, e.g. in real-time
-
- 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
- G01N2291/269—Various geometry objects
- G01N2291/2693—Rotor or turbine parts
Landscapes
- Physics & Mathematics (AREA)
- Biochemistry (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Acoustics & Sound (AREA)
- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Description
【発明の詳細な説明】
本発明は、例えば鋼管のような被試験物体のまわりを回
転しうるよう配置された少くとも1個の非破壊試験部材
を含む回転型非破壊試験装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a rotating non-destructive testing apparatus that includes at least one non-destructive testing member arranged to rotate around an object under test, such as a steel pipe.
このような装置において被試験物体に関する試験記録お
よび(または)上記試験部材により検出された被試験物
体中の損傷個所の位置に関する記録カードまたはシート
が場合により要求される。In such a device, a record card or sheet is optionally required regarding the test record regarding the object under test and/or the location of damage points in the object under test detected by said test member.
本発明の目的は検出された損傷の半径方向位置が明確に
示される非破壊試験装置を得ることにある。本発明によ
れば、被試験物体のまわりに回転しうるよう取付けられ
た非破壊試験部材と、この試験部材を回転させる回転装
置と、この回転装置と回転可能に関連せしめられた複数
の励起部材とを含み、これら励起部材は順序的および周
期的に配列されて上記試験部材の回転に当つてこれら励
起部材の近傍に位置する静止検知装置を励起するような
された回転型非破壊試験装置が提供される。The object of the invention is to obtain a non-destructive testing device in which the radial position of detected damage is clearly indicated. According to the present invention, a nondestructive test member is rotatably mounted around an object to be tested, a rotation device for rotating the test member, and a plurality of excitation members rotatably associated with the rotation device. and the excitation members are arranged in a sequential and periodic manner so that upon rotation of the test member, a stationary detection device located near the excitation members is excited. be done.
上記励起部材は上記試験部材の回転装置の任意の適当な
部分と関連せしめられていてもよく、例えばそれらは駆
動モータの回転子により支持されていてもよく、あるい
は上記駆動がタイミングベルトまたはチェーンにより行
われる場合、それらはこのベルトまたはチェーンにより
支持されていてもよい。しかしながら、これら励起部材
は上記試験部材が取付けられている回転部材により支持
されるともつとも好都合であり、この回転部材は被試験
物1 体を通過せしめるよう配置された環状の固定部材
上に回転可能に取付けられる。The excitation members may be associated with any suitable part of the rotation apparatus of the test member, for example they may be supported by the rotor of a drive motor, or the drive may be provided by a timing belt or chain. If carried out, they may be supported by this belt or chain. However, it is also advantageous if these excitation members are supported by a rotary member on which the test member is mounted, which rotary member is rotatable on an annular fixed member arranged to pass through the object under test. mounted on.
上記励起部材は被試験物体のまわりに回転しうるよう配
置された環状回転部材の外面上に設けられた強磁性体よ
りなる植込ボルトで構成してもよo い。The excitation member may be a stud made of ferromagnetic material provided on the outer surface of an annular rotating member arranged to rotate around the object to be tested.
この場合、上記検知装置はこれら強磁性体製植込ボルト
の回転経路に近く設けた渦電流検知装置として構成して
もよい。この検知装置はさらに1次コイルと2次コイル
とよりなり、これらコイル間の漏洩磁束は上記回転部材
上の植込ボルトがノ5 上記検知装置の近傍を通過する
ごとに検知可能な程度に乱される型のものであつてよい
。本発明の1実施例として上記回転部付のまわりに、か
つ単一の半径方向平面上に200個の植込ボルトが均等
に間隔を取つて配置される。In this case, the detection device may be configured as an eddy current detection device provided close to the rotation path of these ferromagnetic studs. This detection device further includes a primary coil and a secondary coil, and the leakage magnetic flux between these coils is disturbed to a detectable extent every time the stud on the rotating member passes near the detection device. It may be of the type that is used. In one embodiment of the invention, 200 studs are evenly spaced around the rotary attachment and in a single radial plane.
さらにこの環状部材上の上記と異なる半径方向平面内に
1個の植込ボルトが配置されて上記と別個の検知装置と
関連せしめられる。このような配置により上記1個の植
込ボルトにより指示される基準位置に対する上記回転部
材の半径方向位置はこの回転部材の周囲の1/200以
内の誤差で常に確定することができる。1個の被試験物
体(例えば鋼管)が通常の場合と同様にこの試験装置を
通じて回転せしめられることなく送り込まれると、その
試験用プローブにより検知された傷の位置は上記と同様
にその管の周囲のl/200の誤差で管のまわりに決定
される。Furthermore, a stud is disposed on the annular member in a different radial plane and is associated with a separate sensing device. With such an arrangement, the radial position of the rotary member relative to the reference position indicated by the one stud can always be determined to within 1/200 of the circumference of the rotary member. When an object to be tested (e.g. a steel pipe) is fed through this testing device without being rotated as in the normal case, the location of the flaw detected by the test probe will be located around the pipe in the same way as above. around the tube with an error of l/200.
以下添付の図面により本発明の実施例を詳細に説明する
。Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
図に示された本発明による実施例は環状の固定部材1を
含み、この上に環状の回転子2が設けられて部材1のま
わりを回転しうるようなされている。The embodiment according to the invention shown in the figures comprises an annular stationary member 1, on which an annular rotor 2 is provided so as to be able to rotate around the member 1.
回転子2の一方の端部には歯切された輪3が 工設けら
れ、電動機(図示されず)に駆動結合されたタイミング
ベルト(図示されず)ど係合せしめられる。超音波試験
用プローブ組立体4が上記回転子2の一方の端部に取付
けられた板5により支持され }ている。A geared wheel 3 is provided at one end of the rotor 2 and engages a timing belt (not shown) which is drivingly coupled to an electric motor (not shown). An ultrasonic test probe assembly 4 is supported by a plate 5 attached to one end of the rotor 2.
これら各組立体4は回転子2中に埋込まれた複数の滑動
輪6と電気的に結合された複数の超音波パルス発生用プ
ローブを含んでおり、これらプローブの動作は上記滑動
輪6と係合するブラシ(図示されず)を通じて外部電気
回路(図示さ 3れず)から制御しうるようなされてい
る。上記回転子2は例えばアラルダイト(商品名)のよ
うな熱硬化性合成樹脂で構成され、その上記板5が設け
られた一端とは反対の端部7において200個の軟鋼製
植込ボルト8が等間隔でこの回 3転子中に埋込まれて
いる。Each of these assemblies 4 includes a plurality of ultrasonic pulse generation probes electrically coupled to a plurality of sliding wheels 6 embedded in the rotor 2, and the operation of these probes is controlled by the sliding wheels 6 and the plurality of ultrasonic pulse generating probes. It is controllable from an external electrical circuit (not shown) through an engaging brush (not shown). The rotor 2 is made of a thermosetting synthetic resin such as Araldite (trade name), and has 200 mild steel stud bolts 8 at an end 7 opposite to one end where the plate 5 is provided. They are embedded in the third trochanter at equal intervals.
これらの植込ボルトの外表面はワニスまたはラツカ一が
防錆のため塗布され、かつ回転子の外面と同一平面内に
あるようなされている。さらに同様な1個の植込ボルト
9がそれらの一側に、しかし植込ボルト8の半径平面外
に設けられる。回転子2の上記端部7に近く2個の渦電
流検知プローブ10および11が設けられそれぞれ上記
植込ボルト群8および1個の植込ボルト9と協動せしめ
られる。The outer surface of these studs is coated with varnish or lacquer to prevent rust and is flush with the outer surface of the rotor. Furthermore, a similar stud 9 is provided on one side of them, but out of the radial plane of the stud 8. Two eddy current detection probes 10 and 11 are provided near the end 7 of the rotor 2 and cooperate with the stud group 8 and a stud 9, respectively.
本装置の動作において、試験さるべき鋼管12が回転す
ることなく固定子1および回転子2を通じて送られる。In operation of the device, the steel pipe 12 to be tested is fed through the stator 1 and the rotor 2 without rotation.
これと同時に上記回転子2は駆動されてプローブ組立体
4が上記鋼管12と接触せしめられると共にこの鋼管1
2のまわりに回転せしめられ、これにより鋼管12の一
端から他端にいたる連続した螺旋形走査試験を行う。回
転子2の回転によつて植込ボルト8および9はそれぞれ
検知プローブ10および11の近傍を通過せしめられ、
これによる検知プローブ中の磁束の変化はこれらプロー
ブから出力信号を発生させる。At the same time, the rotor 2 is driven to bring the probe assembly 4 into contact with the steel pipe 12 and to bring the probe assembly 4 into contact with the steel pipe 12.
2, thereby performing a continuous helical scan test from one end of the steel tube 12 to the other. The rotation of the rotor 2 causes the studs 8 and 9 to pass near the detection probes 10 and 11, respectively;
This change in magnetic flux in the sensing probes causes output signals to be generated from these probes.
プローブ11は回転子の1回転毎に1個の出力信号を発
生し、一方、プローブ10は回転子l回転毎に200個
の出力信号を発生する。かくて試験用プローブ組立体4
用動作回路との適当な協動の下に被試験物体中の損傷あ
るいは欠陥の上記物体のまわりの半径方向位置が決定さ
れ、また既知の記録装置によりそれらが記録される。Probe 11 generates one output signal per rotor revolution, while probe 10 generates 200 output signals per rotor revolution. Thus, the test probe assembly 4
In appropriate cooperation with the operating circuit, the radial positions of damages or defects in the object under test are determined and recorded by means of known recording devices.
図は本発明による回転型非配壊試験装置の一部を破断し
た側面図である。
1・・・・・・固定部材、2・・・・・・回転部材、3
・・・・・・歯切された輪、4・・・・・・超音波試験
用プローブ組立体、5・・・板、6・・・・・・滑動輪
、8,9・・・・・・植込ボルト、10,11・・・・
・・渦電流検知プローブ、12・・・・・・被試験鋼管
。The figure is a partially cutaway side view of a rotating non-destructive testing device according to the present invention. 1... Fixed member, 2... Rotating member, 3
... Geared ring, 4 ... Ultrasonic test probe assembly, 5 ... Plate, 6 ... Sliding wheel, 8, 9 ...・・Built bolt, 10, 11・・・・
...Eddy current detection probe, 12... Steel pipe to be tested.
Claims (1)
た回転部材と、被試験物体が通過しうるようなされ、か
つ上記回転部材を載置して上記物体のまわりを回転しう
るようなされた環状の固定部材と、上記回転部材を回転
せしめる装置と、上記回転部材により支持された複数の
励起部材と、これら励起部材の運動経路に近く位置した
静止検知装置とを含み、上記励起部材は順序的かつ周期
的に配置されて上記回転部材の回転に当つて上記静止検
知装置を励起するようなされた回転型非破壊試験装置。1. A member for non-destructive testing, a rotating member to which the testing member is attached, and a rotating member that allows the object to be tested to pass through it, and that allows the rotating member to be mounted and rotated around the object. an annular stationary member, a device for rotating the rotary member, a plurality of excitation members supported by the rotary member, and a stationary detection device located near a path of motion of the excitation members, the excitation members being arranged in sequence. a rotating non-destructive testing device arranged periodically and periodically to excite the stationary sensing device upon rotation of the rotating member;
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3584074A GB1475742A (en) | 1974-08-14 | 1974-08-14 | Rotary non-destructive testing apparatus |
GB3584074 | 1974-08-14 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5144984A JPS5144984A (en) | 1976-04-16 |
JPS599858B2 true JPS599858B2 (en) | 1984-03-05 |
Family
ID=10382103
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP50098152A Expired JPS599858B2 (en) | 1974-08-14 | 1975-08-14 | Rotating non-destructive testing equipment |
Country Status (5)
Country | Link |
---|---|
JP (1) | JPS599858B2 (en) |
DE (1) | DE2536134A1 (en) |
FR (1) | FR2282112A1 (en) |
GB (1) | GB1475742A (en) |
IT (1) | IT1041561B (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5680645U (en) * | 1979-11-28 | 1981-06-30 | ||
DE3708454A1 (en) * | 1987-03-16 | 1988-09-29 | Foerster Inst Dr Friedrich | TEST HEAD AND METHOD FOR MANUFACTURING SUCH A TEST HEAD |
CN115684357B (en) * | 2022-12-30 | 2023-03-31 | 四川鑫跃鑫科学仪器有限公司 | Ultrasonic nondestructive testing device |
-
1974
- 1974-08-14 GB GB3584074A patent/GB1475742A/en not_active Expired
-
1975
- 1975-08-13 IT IT6907775A patent/IT1041561B/en active
- 1975-08-13 DE DE19752536134 patent/DE2536134A1/en not_active Ceased
- 1975-08-14 JP JP50098152A patent/JPS599858B2/en not_active Expired
- 1975-08-14 FR FR7525345A patent/FR2282112A1/en active Granted
Also Published As
Publication number | Publication date |
---|---|
FR2282112A1 (en) | 1976-03-12 |
FR2282112B1 (en) | 1979-05-11 |
DE2536134A1 (en) | 1976-02-26 |
IT1041561B (en) | 1980-01-10 |
JPS5144984A (en) | 1976-04-16 |
GB1475742A (en) | 1977-06-01 |
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