JP2510351Y2 - Multi-type transducer - Google Patents
Multi-type transducerInfo
- Publication number
- JP2510351Y2 JP2510351Y2 JP1989141570U JP14157089U JP2510351Y2 JP 2510351 Y2 JP2510351 Y2 JP 2510351Y2 JP 1989141570 U JP1989141570 U JP 1989141570U JP 14157089 U JP14157089 U JP 14157089U JP 2510351 Y2 JP2510351 Y2 JP 2510351Y2
- Authority
- JP
- Japan
- Prior art keywords
- flaw detection
- sensor
- ect
- sensors
- probe
- 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 - Lifetime
Links
Description
【考案の詳細な説明】 〔産業上の利用分野〕 本考案は鉄鋼構造物に適用される渦電流探傷と超音波
探傷に好適なマルチ形探触子に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a multi-type probe suitable for eddy current flaw detection and ultrasonic flaw detection applied to steel structures.
鉄鋼構造物の非破壊検査手法として、圧力容器の探傷
では超音波探傷（UT）が実施され、又、熱交換器細管の
探傷では渦電流探傷（ECT）が広く実施されている。一
般的には、ECTは薄肉細管の体積検査に適しているのに
対し、UTは薄肉のみならず厚肉の探傷にも適用されてい
る。As a nondestructive inspection method for steel structures, ultrasonic flaw detection (UT) is performed for flaw detection of pressure vessels, and eddy current flaw detection (ECT) is widely performed for flaw detection of heat exchanger thin tubes. In general, ECT is suitable for volume inspection of thin-walled thin tubes, while UT is applied not only for thin-walled inspection but also for thick-walled flaw detection.
鉄鋼構造物の検査対象箇所が、第３図に示すように、
圧力容器の鏡33とこれを貫通する計装筒部32との溶接部
31、及びその近傍の計装筒部32の場合、計装筒内面から
の探傷においては内挿式プローブにより、内表面欠陥に
対するECTと、より深い位置にある欠陥に対するUTとの
組合せによる探傷、あるいはUTだけにより探傷する方法
がある。As shown in FIG. 3, the inspection target points of the steel structure are
Welded portion between the mirror 33 of the pressure vessel and the instrumentation tube portion 32 that penetrates the mirror 33.
31, and in the case of the instrumentation tube portion 32 in the vicinity thereof, in the flaw detection from the inner surface of the instrumentation tube, by the interpolating type probe, ECT for the inner surface defect, and flaw detection by a combination of UT for the defect at a deeper position, Alternatively, there is a method of flaw detection only by UT.
必要な検査範囲を十分カバーするためには、ECTとUT
の組合せでは、ECTの軸方向探傷用プローブ及び円周方
向探傷用プローブが各１個、UTの縦波20°及び０°の各
１個、合計４個のプローブが必要である。In order to cover the required inspection range well, ECT and UT
The combination of 4 requires a total of four probes, one for the ECT axial flaw detection probe and one for the circumferential flaw detection probe, and one each for the UT longitudinal wave 20 ° and 0 °.
又、UTだけで探傷する場合、前記UTプローブの他に、
横波45°が２個以上必要であり、合計では４個以上必要
である。Also, in the case of flaw detection only with UT, in addition to the UT probe,
Two or more 45 ° shear waves are required, and a total of four or more is required.
従って、従来はこのように４個以上の探触子を用い、
１個ずつ数回に分けて定査し、探傷していた。Therefore, conventionally, using four or more probes like this,
Each one was divided into several times and inspected, and flaws were detected.
UTやECTの信頼性の向上および省力化を図るために探
傷作業の自動化が望まれる。特に物理的に人が接近しに
くいような検査対象箇所の探傷の自動化を行なう場合、
４個以上の探触子を１個ずつとり替えて走査するのは作
業が煩雑となり、省力化の効果が期待できない。Automation of flaw detection is desired to improve the reliability of UT and ECT and to save labor. Especially when automating the flaw detection of the inspection target area where people are physically difficult to approach,
Replacing and scanning four or more probes one by one complicates the work and cannot be expected to save labor.
このように圧力容器の鏡と計装筒との溶接部及びその
近傍を探傷する場合、４個以上の探触子を用いて探傷す
る必要があるが、従来は、１個の探触子に多角度の探傷
やECTとUTの機能を持たせたマルチ探触子がなかった。As described above, when detecting the welded portion between the mirror of the pressure vessel and the instrumentation tube and the vicinity thereof, it is necessary to perform the flaw detection using four or more probes, but conventionally, one probe is used. There was no multi-probe with multi-angle flaw detection and ECT and UT functions.
本考案は、上記の問題点を解決したマルチ形探触子を
提供することを目的とするものである。An object of the present invention is to provide a multi-type probe that solves the above problems.
屈折角の異なる複数のUTセンサ、あるいはUTセンサと
ECTセンサを中空円筒状とし、中空円筒状基材に縦列に
嵌装して、１個の探触子に、多角度の探傷機能及びECT
とUTの機能を持たせる。With multiple UT sensors with different refraction angles, or with UT sensors
The ECT sensor has a hollow cylindrical shape, and is vertically mounted on the hollow cylindrical base material.
And UT function.
１個の探触子で、多角度の探傷及びECTとUTの探傷を
行うことができる。Multi-angle flaw detection and ECT and UT flaw detection can be performed with a single probe.
〔第１実施例〕 本考案の第１実施例を第１図により説明する。図中、
１は円筒状基材、２は垂直UTセンサ、３は縦波20°UTセ
ンサ、４はECT用センサである。ECT用センサ４には円周
方向欠陥用コイル５と軸方向欠陥用コイル６とが巻かれ
ている。センサ2,3,4の形状を中空円柱状として、これ
等のセンサ2,3,4を円筒状基材１に嵌装し、更に両端に
スタビライザ8a,8bを装着した後、それぞれを止めネジ1
0a〜10fにより固定する。円筒状基材１の片方の端には
コネクタ12を接合し、夫々のセンサからのリード線11が
接合される。なお、UTセンサ同志及び、ECTセンサとの
間には超音波的な干渉をなくすための遮音材9a,9bを挿
入する。[First Embodiment] A first embodiment of the present invention will be described with reference to FIG. In the figure,
1 is a cylindrical substrate, 2 is a vertical UT sensor, 3 is a longitudinal wave 20 ° UT sensor, and 4 is an ECT sensor. A circumferential defect coil 5 and an axial defect coil 6 are wound around the ECT sensor 4. The sensors 2, 3 and 4 are hollow cylinders, these sensors 2, 3 and 4 are fitted on the cylindrical base material 1, and the stabilizers 8a and 8b are further attached to both ends, and then set screws 1
Fix with 0a to 10f. A connector 12 is joined to one end of the cylindrical substrate 1, and lead wires 11 from the respective sensors are joined. Note that sound insulation members 9a and 9b for eliminating ultrasonic interference are inserted between the UT sensor and the ECT sensor.
〔第２実施例〕 第２図は第２実施例を示したもので、円筒状基材が、
1a,1b,1cに３分割され、給合金具15を介して一体化され
ている。[Second Embodiment] FIG. 2 shows a second embodiment in which the cylindrical substrate is
It is divided into three parts, 1a, 1b, and 1c, and they are integrated with each other via the alloy feeding tool 15.
本実施例は、垂直UTセンサ２、円周方向欠陥用UTセン
サ13、軸方向欠陥用UTセンサ14に、円筒状基材を通す穴
が中心に設定できず、偏心している場合に適用できる。This embodiment can be applied to the vertical UT sensor 2, the circumferential defect UT sensor 13, and the axial defect UT sensor 14 when the holes through which the cylindrical base material cannot be set at the center and are eccentric.
本考案によるマルチ形探触子は、屈折角の異なる複数
のUTセンサ同志あるいはUTセンサとECTセンサを中空円
筒状とし、これを中空円筒状基材に縦列に嵌挿して形成
したものであるから中空円筒状基材に対して複数のUTセ
ンサとECTセンサの配列及び組立が容易となると共に、
１個の探触子で多角度の探傷機能及びECTとUT機能を持
たせることが可能となって検査対象物の検査が著しく容
易となる等の効果を有する。The multi-type probe according to the present invention is formed by inserting a plurality of UT sensors having different refraction angles, or a UT sensor and an ECT sensor into a hollow cylindrical shape, and inserting the hollow cylindrical base material in a vertical column. Arrangement and assembly of multiple UT sensors and ECT sensors on a hollow cylindrical substrate becomes easy,
With a single probe, it is possible to provide multi-angle flaw detection functions and ECT and UT functions, which has the effect of significantly facilitating the inspection of the inspection object.
第１図は本考案の第１実施例に係る構成図、第２図は第
２実施例に係る構成図、第３図は検査範囲を示す断面図
である。 １……円筒状基材、２……垂直UTセンサ ３……縦波20°センサ、４……ECT用センサ 31……溶接部、32……計装筒部FIG. 1 is a configuration diagram according to the first embodiment of the present invention, FIG. 2 is a configuration diagram according to the second embodiment, and FIG. 3 is a sectional view showing an inspection range. 1 ... Cylindrical substrate, 2 ... Vertical UT sensor 3 ... Longitudinal wave 20 ° sensor, 4 ... ECT sensor 31 ... Welded part, 32 ... Instrumentation tube
Claims (1)
UTセンサとECTセンサを中空円筒状とし、中空円筒状基
材に縦列に嵌装してなることを特徴とするマルチ形探触
子。1. A plurality of UT sensors having different refraction angles, or
A multi-type probe characterized in that a UT sensor and an ECT sensor have a hollow cylindrical shape and are vertically mounted on a hollow cylindrical base material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989141570U JP2510351Y2 (en) | 1989-12-08 | 1989-12-08 | Multi-type transducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989141570U JP2510351Y2 (en) | 1989-12-08 | 1989-12-08 | Multi-type transducer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0380361U JPH0380361U (en) | 1991-08-16 |
| JP2510351Y2 true JP2510351Y2 (en) | 1996-09-11 |
Family
ID=31688452
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989141570U Expired - Lifetime JP2510351Y2 (en) | 1989-12-08 | 1989-12-08 | Multi-type transducer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2510351Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4848260B2 (en) * | 2006-12-12 | 2011-12-28 | ピジョン株式会社 | Maternity belt |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4856337A (en) * | 1987-07-30 | 1989-08-15 | Westinghouse Electric Corp. | Apparatus and method for providing a combined ultrasonic and eddy current inspection of a tube |
-
1989
- 1989-12-08 JP JP1989141570U patent/JP2510351Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0380361U (en) | 1991-08-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |