JPH04348273A - Noiseless rotary ect probe - Google Patents
Noiseless rotary ect probeInfo
- Publication number
- JPH04348273A JPH04348273A JP3191360A JP19136091A JPH04348273A JP H04348273 A JPH04348273 A JP H04348273A JP 3191360 A JP3191360 A JP 3191360A JP 19136091 A JP19136091 A JP 19136091A JP H04348273 A JPH04348273 A JP H04348273A
- Authority
- JP
- Japan
- Prior art keywords
- probe
- rotary
- slip ring
- coil
- signal wire
- 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.)
- Withdrawn
Links
- 239000000523 sample Substances 0.000 title claims abstract description 30
- 238000005259 measurement Methods 0.000 claims abstract description 9
- 238000007689 inspection Methods 0.000 claims abstract description 5
- 238000001514 detection method Methods 0.000 claims abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 238000004804 winding Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Landscapes
- Monitoring And Testing Of Nuclear Reactors (AREA)
- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
Abstract
Description
【０００１】0001
【産業上の利用分野】本発明は、回転型ＥＣＴ（渦電流
検査）プローブが原理的にどうしても発生する、プロー
ブの回転部と信号線との接続部（スリップリング）にお
けるノイズを取り除くことに関するものである。[Industrial Application Field] The present invention relates to removing noise at the connection (slip ring) between the rotating part of the probe and the signal line, which is inevitably generated in principle in a rotating ECT (eddy current inspection) probe. It is.
【０００２】0002
【従来の技術】図３のような回転型ＥＣＴプローブ本体
Ｐが加圧水型原子炉の蒸気発生器（Ｓ／Ｇ）の伝熱管１
０の探傷検査に用いられている。プローブの本体Ｐは先
端と後端のセンタリングブラシ１１ａ，１１ｂ，コイル
１２およびスリップリング，エンコーダー（回転角検知
器），モーターを内蔵したプローブボディ１３からなり
、フレキシブルシャフト１４の先端に取付けられて、伝
熱管１０内へ挿入され、該伝熱管の傷などの検査を行う
。コイル１２は回転部１５に取付けられており、回転す
ることによって、伝熱管１０の内面各部分を探傷できる
。[Prior Art] A rotating ECT probe main body P as shown in FIG. 3 is a heat exchanger tube 1 of a steam generator (S/G) of a pressurized water reactor.
It is used for flaw detection inspection of 0. The main body P of the probe consists of centering brushes 11a and 11b at the tip and rear ends, a coil 12, a slip ring, an encoder (rotation angle detector), and a probe body 13 containing a motor, and is attached to the tip of a flexible shaft 14. It is inserted into the heat exchanger tube 10, and the heat exchanger tube is inspected for flaws, etc. The coil 12 is attached to a rotating part 15, and by rotating, each part of the inner surface of the heat exchanger tube 10 can be inspected for flaws.
【０００３】前述した図３におけるコイル１２と信号処
理システムとの構成の概略は図２のとおリでスリップリ
ングが用いられている。同図においては、１はコイル，
２はスリップリング，３はモーター（測定時一定方向に
回転），４はコイルと信号線との接続（接触）部分，５
は信号線である。測定はモーター３でプローブコイル１
およびスリップリング２を一定方向に回転しながら行う
。この測定方法をもしスリップリングなしで行うと、信
号線５がプローブに巻きついてやがて切れてしまう。
このためスリップリング２は絶対に必要である。しかし
スリップリング２を用いると必然的に回転部と信号線と
の接続（接触）部４でノイズが発生し、そのノイズが測
定信号に重畳してしまう。これが従来の回転型ＥＣＴプ
ローブの問題点である。The schematic structure of the coil 12 and the signal processing system in FIG. 3 described above is as shown in FIG. 2, and a slip ring is used. In the figure, 1 is a coil,
2 is a slip ring, 3 is a motor (rotates in a fixed direction during measurement), 4 is a connection (contact) part between the coil and the signal line, 5
is a signal line. Measurement is done using motor 3 and probe coil 1.
and while rotating the slip ring 2 in a fixed direction. If this measurement method were performed without a slip ring, the signal line 5 would wind around the probe and eventually break. For this reason, the slip ring 2 is absolutely necessary. However, when the slip ring 2 is used, noise is inevitably generated at the connection (contact) part 4 between the rotating part and the signal line, and the noise is superimposed on the measurement signal. This is a problem with conventional rotating ECT probes.
【０００４】回転部と信号線との接触部分で発生するノ
イズを取リ除くことが先決問題であるが、これはスリッ
プリングを使用せずにプローブと信号線を直接に接続す
れば接触ノイズは完全に無くすることはできるが、従来
の回転機構のままでは、プローブが一定方向に回転する
ため信号線がからまるという問題点が残る。[0004] The first problem is to remove the noise generated at the contact part between the rotating part and the signal line, but if the probe and the signal line are directly connected without using a slip ring, the contact noise can be eliminated. Although it is possible to completely eliminate this problem, if the conventional rotation mechanism is used, the problem remains that the signal line gets tangled because the probe rotates in a fixed direction.
【０００５】[0005]
【発明が解決しようとする課題】解決しようとする問題
点は、回転部と信号線との接触部分で発生するノイズを
取リ除くとともに、プローブが何回回転しても測定が支
障なく行えるようにする点である。[Problem to be solved by the invention] The problem to be solved is to eliminate the noise generated at the contact part between the rotating part and the signal line, and to make it possible to perform measurements without any trouble no matter how many times the probe rotates. This is a point to make.
【０００６】[0006]
【課題を解決するための手段】本発明は、プローブと信
号線との接触部で発生するノイズを無くするために、ス
リップリングの使用を止め、同時にプローブが何回回転
しても、信号線がもつれたり、切れたりすることが無い
ようにするために、回転機構に正転・逆転が１〜数回転
毎に制御可能なモーターを使用することによって実現し
た。[Means for Solving the Problems] The present invention eliminates the use of a slip ring in order to eliminate noise generated at the contact portion between the probe and the signal line. In order to avoid tangling or breaking, this was achieved by using a motor in the rotating mechanism that can control forward and reverse rotation every one to several rotations.
【０００７】[0007]
【作用】本発明のノイズレス回転型ＥＣＴプローブは、
従来使用していたスリップリングを使用せず、プローブ
は１〜数回転毎に正転・逆転を繰返すので、プローブと
信号線の接続部も切れたり、もつれたりすることがない
。[Operation] The noiseless rotating ECT probe of the present invention has the following features:
Since the conventionally used slip ring is not used and the probe repeats forward and reverse rotation every one to several rotations, the connection between the probe and the signal line will not be cut or tangled.
【０００８】[0008]
【実施例】本発明のノイズレス回転型ＥＣＴプローブの
実施例の概略構成を図１に示して説明する。測定開始後
モーター６は１〜数回転毎に正転・逆転を繰返し、回転
部１５（図３参照）を正転・逆転させる。これによって
プローブコイル１も正転・逆転を繰返す。測定データを
従来と同様に収集するために、伝熱管１０（図３参照）
の探傷処理は従来のプログラムを正転・逆転によるデー
タの配列の変化に対応できるよう一部改修したものを使
用して行う。正転・逆転を繰返すため信号線５がプロー
ブ（図３参照）に巻きつくこともないので図２に示した
スリップリングは不要である。Embodiment A schematic configuration of an embodiment of the noiseless rotary ECT probe of the present invention will be described with reference to FIG. After the start of measurement, the motor 6 repeats forward and reverse rotations every one to several rotations, causing the rotating section 15 (see FIG. 3) to rotate forward and reverse. As a result, the probe coil 1 also repeats forward and reverse rotation. In order to collect measurement data in the same way as before, the heat exchanger tube 10 (see Fig. 3)
The flaw detection process is performed using a conventional program that has been partially modified to accommodate changes in the data arrangement due to forward and reverse rotation. Since the signal line 5 does not wrap around the probe (see FIG. 3) due to repeated forward and reverse rotations, the slip ring shown in FIG. 2 is unnecessary.
【０００９】[0009]
【発明の効果】以上説明したように本発明のノイズレス
回転型ＥＣＴプローブは、スリップリングが無いため、
従来問題であつた信号線がプローブの回転部に接触する
ことにより発生するノイズを完全に取り除くことができ
る。[Effects of the Invention] As explained above, the noiseless rotating ECT probe of the present invention has no slip ring.
It is possible to completely eliminate the noise generated when the signal line comes into contact with the rotating part of the probe, which has been a problem in the past.
【図１】本発明のノイズレス回転型ＥＣＴプローブの概
略構成の実施例説明図である。FIG. 1 is an explanatory diagram of an embodiment of a schematic configuration of a noiseless rotary ECT probe of the present invention.
【図２】従来の回転型ＥＣＴプローブの概略構成の説明
図である。FIG. 2 is an explanatory diagram of a schematic configuration of a conventional rotary ECT probe.
【図３】回転型ＥＣＴプローブの説明図である。FIG. 3 is an explanatory diagram of a rotating ECT probe.
１ プローブコイル
２ スリップリング
５ 信号線
６ モーター（正転・逆転が制御可能）１５ 回転
部1 Probe coil 2 Slip ring 5 Signal line 6 Motor (forward/reverse rotation can be controlled) 15 Rotating part
Claims (1)
の探傷検査に使用する回転型ＥＣＴプローブの回転に正
転・逆転の制御が可能なモーターを使用して、測定時に
１〜数回転毎に正転・逆転を繰返しながら、従来使用し
ていたスリップリングによリ発生していたノイズを取り
除いて検査データの収集を行うことを特徴とするノイズ
レス回転型ＥＣＴプローブ。Claim 1: A rotary ECT probe used for flaw detection inspection of heat exchanger tubes of steam generators for pressurized water reactors uses a motor that can control forward and reverse rotation to rotate one to several revolutions during measurement. A noiseless rotary ECT probe that collects inspection data by repeatedly rotating forward and reverse each time, removing the noise generated by the conventional slip ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3191360A JPH04348273A (en) | 1991-04-25 | 1991-04-25 | Noiseless rotary ect probe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3191360A JPH04348273A (en) | 1991-04-25 | 1991-04-25 | Noiseless rotary ect probe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04348273A true JPH04348273A (en) | 1992-12-03 |
Family
ID=16273286
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3191360A Withdrawn JPH04348273A (en) | 1991-04-25 | 1991-04-25 | Noiseless rotary ect probe |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04348273A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102507730A (en) * | 2011-10-17 | 2012-06-20 | 中广核检测技术有限公司 | Probe for inspecting vortex of anti-pressure shell of control rod driving mechanism in CEPR (Centre for Economic Policy Research) nuclear power station |
| CN107958713A (en) * | 2016-10-14 | 2018-04-24 | 核动力运行研究所 | A kind of video inspection device of steam generator nozzle inner wall |
-
1991
- 1991-04-25 JP JP3191360A patent/JPH04348273A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102507730A (en) * | 2011-10-17 | 2012-06-20 | 中广核检测技术有限公司 | Probe for inspecting vortex of anti-pressure shell of control rod driving mechanism in CEPR (Centre for Economic Policy Research) nuclear power station |
| CN107958713A (en) * | 2016-10-14 | 2018-04-24 | 核动力运行研究所 | A kind of video inspection device of steam generator nozzle inner wall |
| CN107958713B (en) * | 2016-10-14 | 2024-02-09 | 核动力运行研究所 | Video inspection device for inner wall of steam generator connecting pipe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Application deemed to be withdrawn because no request for examination was validly filed |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 19980711 |