JPS61144551A - Long hole peripheral wall inspecting device - Google Patents
Long hole peripheral wall inspecting deviceInfo
- Publication number
- JPS61144551A JPS61144551A JP26726284A JP26726284A JPS61144551A JP S61144551 A JPS61144551 A JP S61144551A JP 26726284 A JP26726284 A JP 26726284A JP 26726284 A JP26726284 A JP 26726284A JP S61144551 A JPS61144551 A JP S61144551A
- Authority
- JP
- Japan
- Prior art keywords
- camera
- gear
- rotating body
- hole
- peripheral wall
- 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.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/95—Investigating the presence of flaws or contamination characterised by the material or shape of the object to be examined
- G01N21/954—Inspecting the inner surface of hollow bodies, e.g. bores
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Length Measuring Devices By Optical Means (AREA)
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
Abstract
Description
【発明の詳細な説明】
〔発明の技術分野〕
本発明は、例えば、タービンロータ及びタービン発電機
ロータの中心孔等の長孔周壁の亀裂や傷損等をＣ，Ｃ．
Ｄカラーカメラで目視探傷する長孔周壁検査装置に関す
る。DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention is directed to, for example, repairing cracks, damage, etc. on the circumferential wall of a long hole such as a center hole of a turbine rotor or a turbine generator rotor.
This invention relates to a long hole peripheral wall inspection device that visually detects flaws using a D color camera.
（発明の技術的背景とその問題点〕
一般に、タービンロータ及びタービン発電機ロータの中
心孔は、０−タ製造時、ロータ軸中心部に集中し易い偏
析などの非金属介在物を除去するために穿設されている
。(Technical background of the invention and its problems) In general, the center hole of a turbine rotor and a turbine generator rotor is designed to remove non-metallic inclusions such as segregation that tend to concentrate at the center of the rotor shaft during O-tor manufacturing. It is drilled in.
このように、タービンロータ等に中心孔を穿設すると、
ロータの回転中に、上記中心孔の近傍は、高応力を受け
るため、上記タービンロータ等の中心孔の内周壁面は、
例えば、超音波探傷、磁粉探傷又は目視検査等によって
定期的に検査を施している。In this way, when a center hole is drilled in a turbine rotor, etc.,
During rotation of the rotor, the vicinity of the center hole is subjected to high stress, so the inner peripheral wall surface of the center hole of the turbine rotor, etc.
For example, regular inspections are performed using ultrasonic flaw detection, magnetic particle flaw detection, visual inspection, or the like.
従来の長孔周壁検査装置は、第１０図及び第１１図に示
されるように、タービンロータＷの中心孔Ｗ１を検査す
る場合、水平架台ａ上に駆動治具すを走行自在に設け、
この駆動治具すの先端部に支え杆Ｃを備えた駆動棒ｄを
延設し、この駆動棒ｄの端部に、例えば、撮像管による
モノクロＴＶカメラによる検査ヘッドｅを上記中心孔Ｗ
１内に挿入して探傷検査するようになっており、上記検
査ヘッドｅを構成するモノクロＴＶカメラには、撮像窓
ｅ１が付設されている。As shown in FIGS. 10 and 11, the conventional elongated hole circumferential wall inspection device, when inspecting the center hole W1 of the turbine rotor W, has a drive jig movably installed on a horizontal frame a,
A drive rod d equipped with a support rod C is extended from the tip of this drive jig, and an inspection head e using a monochrome TV camera using an image pickup tube is attached to the end of the drive rod d, for example, through the center hole W.
The monochrome TV camera constituting the inspection head e is provided with an imaging window e1.
従って、上述した周壁検査装置は、上記駆動治具すによ
って、上記駆動棒ｄを回転しながら、中心孔Ｗ１を直進
することにより、上記検査ヘッドｅが、上記タービンロ
ータＷの中心孔Ｗ１の亀裂やピンホール等を検査するよ
うになっている。Therefore, in the peripheral wall inspection apparatus described above, the inspection head e detects cracks in the center hole W1 of the turbine rotor W by moving the drive rod d in a straight line through the center hole W1 while rotating the drive rod d using the drive jig. It is designed to inspect for pinholes, pinholes, etc.
しかしながら、上述した長孔周壁検査装置は、検査中に
、上記駆動棒ｄを、順次、継ぎ足さなければならないば
かりでなく、継ぎ足すごとに、検査が中断され、検査時
間が長くなると共に、上記駆動棒ｄを継ぎ足すことによ
って、上記駆動冶具すの回転動作が駆動棒ｄの先端部に
設けられたモノクロＴＶカメラによる検査ヘッドｅに有
効に伝達されず、駆動棒ｄの捩れや撓みによって、上記
中心孔Ｗ１の内周壁に生じた亀裂やピンホールの位置を
正確に検出することが困難である。さらに、上記駆動棒
ｄを継ぎ足すとき、一旦、上記検査ヘッドｅからの電気
信号や光信号による情報がとぎれるため、連続した検査
記録が得られず、しかも、駆動冶具すの位置ずれを生じ
易く、上記検査ヘッドｅの〇−タ軸方向の位置の検査精
度も低下する等の欠点がある。However, with the above-mentioned elongated hole circumferential wall inspection apparatus, not only must the drive rods d be added one after another during the inspection, but each time the drive rods are added, the inspection is interrupted, lengthening the inspection time, and the drive rods d need to be added. By adding the rod d, the rotational movement of the driving jig s is not effectively transmitted to the inspection head e using the monochrome TV camera installed at the tip of the driving rod d, and the twisting and bending of the driving rod d causes It is difficult to accurately detect the position of a crack or pinhole that occurs in the inner circumferential wall of the center hole W1. Furthermore, when adding the drive rod d, the information from the electric signal and optical signal from the inspection head e is temporarily interrupted, making it impossible to obtain continuous inspection records, and furthermore, the position of the drive jig tends to shift. , there is a drawback that the inspection accuracy of the position of the inspection head e in the ○-ta axis direction is also lowered.
ざらに又、上記検査ヘッドｅのモノクＤＴＶカメラは、
ａｍ管によっているため、このモノクロＴＶカメラの移
動速度が速くなると、画像が流れ、高速な検査を困難に
している。しかも、上記検査ヘッドは、モノクロＴＶカ
メラであるから、中心孔Ｗ１内に生じた鎖、塵埃、亀裂
、ピンホール等の判定を困難にしている。特に、磁粉探
傷時の観察模様が磁粉によるものか、さらに、他の原因
に起因したものか、その判定が不正確であり、信頼性に
問題がある。Furthermore, the monochrome DTV camera of the above inspection head e is
Because it uses an AM tube, when the monochrome TV camera moves faster, the images flow, making high-speed inspection difficult. Moreover, since the inspection head is a monochrome TV camera, it is difficult to judge whether there are chains, dust, cracks, pinholes, etc. that have occurred in the center hole W1. In particular, it is inaccurate to determine whether a pattern observed during magnetic particle flaw detection is caused by magnetic particles or another cause, which poses a problem in reliability.
又一方、第１２図に示されるように、例えば、ボアスコ
ープ等の内視鏡（硬鏡ともいう） ｅ Ｉを使用したも
のもあるが、これは、内視鏡ｅ′を駆動治具すに設けら
れている関係上、被写体への光量が低下し、鮮明な画像
（映像）を得ることが困難である。On the other hand, as shown in Fig. 12, there is also an endoscope (also called a hard scope) such as a borescope, which uses a driving jig to move the endoscope e'. Because of the low light intensity, the amount of light to the subject decreases, making it difficult to obtain a clear image (video).
本発明は、上述した難点を解消するために、駆動棒によ
る捩れや撓みを解消して、中心孔による長孔周壁をＣ，
Ｃ．Ｄカラーカメラで正確に検査し、併せて、測定精度
の向上を図るようにしたことを目的とする長孔周壁検査
装置を提供するものである。In order to solve the above-mentioned difficulties, the present invention eliminates the twisting and deflection caused by the drive rod, and the peripheral wall of the long hole formed by the central hole is C.
C. The present invention provides a long hole circumferential wall inspection device which is designed to accurately inspect using a D color camera and to improve measurement accuracy.
本発明は、複数の支持ローラを備えたケース本体内にカ
メラ回路基板を内蔵した回転体を回転自在に嵌装し、こ
の回転体の内部に歯車を設け、この歯車にエンコーダの
歯車を噛合して設け、この回転体の先端部に直接又は間
接的に光源を備えたＣ、Ｃ，Ｄカラーカメラを孔周壁に
付勢して踊影し得るように設けて、測定精度の向上を図
るように構成したものである。In the present invention, a rotating body with a built-in camera circuit board is rotatably fitted into a case body equipped with a plurality of support rollers, a gear is provided inside the rotating body, and an encoder gear is meshed with this gear. A C, C, D color camera equipped with a light source directly or indirectly is installed at the tip of this rotary body so that it can be biased against the circumferential wall of the hole and cast images, thereby improving measurement accuracy. It is composed of
（発明の実施例）
以下、本発明を、タービンロータの中心孔を検査するの
に適用した図示の一実施例につ（Ｘで説明する。(Embodiment of the Invention) Hereinafter, an illustrated embodiment (X) in which the present invention is applied to inspecting the center hole of a turbine rotor will be described.
第１図乃至第７図において、符号１【よ、有底円筒形を
なすケース本体であって、このケース本体の外がわには
、複数の支持ロー５２がタービンロータＷの中心孔Ｗ１
の内径に応じて伸縮自在に設けられており、このケース
本体１の先端ｓｉａ及び内がわには、一対の軸受３が設
けられて！／Ｘる。In FIGS. 1 to 7, reference numeral 1 indicates a case body having a cylindrical shape with a bottom, and a plurality of support rows 52 are provided on the outside of the case body through a center hole W1 of the turbine rotor W.
A pair of bearings 3 are provided at the tip sia and inside of the case body 1. /Xru.
又、この軸受３にはカメラ回路基板４を内蔵した回転体
５が回転自在に嵌装されており、この回転体５の内端部
５ａには、内歯歯車（インターナルギヤ）６が設けられ
ている。さらに、この内歯歯車６には、これに噛合する
小歯車７を有するエンコーダ８及び駆動歯車９を有する
駆動モータ１０が設けられており、このエンコーダ８＆
よ、上記中心孔Ｗ１内の回転量を検出するようになって
（Ｘる。Further, a rotating body 5 having a built-in camera circuit board 4 is rotatably fitted into this bearing 3, and an internal gear 6 is provided at an inner end 5a of this rotating body 5. It is being Further, this internal gear 6 is provided with an encoder 8 having a small gear 7 that meshes therewith, and a drive motor 10 having a drive gear 9.
Now, the amount of rotation within the center hole W1 is detected (X).
さらに、上記駆動モータ１０は、上記回転体５を回転す
るようになっている。なお、上記エンコーダ８及び駆動
モータ１０は、図示されないリード線を介してコネクタ
１１に接続されている。Further, the drive motor 10 rotates the rotating body 5. The encoder 8 and drive motor 10 are connected to a connector 11 via a lead wire (not shown).
一方、上記回転体５の先端部５ｂには、ナツト部材１２
が一体的に付設されており、このナツト部材１２には、
調整螺杆１３が螺装されている。On the other hand, a nut member 12 is attached to the tip portion 5b of the rotating body 5.
is integrally attached to this nut member 12,
An adjusting screw rod 13 is screwed on.
又、この調整螺杆１３の一端部１３ａには、検査ヘッド
としての光源１４を備えたｃ、ｃ、 Ｄ＜電荷結合素子
）カラーカメラ１５が、上記中心孔Ｗ１の孔周壁にコイ
ルばね１６の弾力によって付勢して１１１ＷｅＬ、得る
ようにして設けられている。即ち、このＣ，Ｃ．Ｄカラ
ーカメラ１５は、第３図及び第４図に拡大して示される
ように、筐体１７内にＣ，Ｃ．Ｄカラーカメラ本体１８
を上記中心孔Ｗ１の孔周壁に上記コイルばね１６の弾力
で付勢して設けられており、このＣ，Ｃ．Ｄカラーカメ
ラ本体１８内には、撮影レンズ１９、これをフォー力ツ
シングするパルスモータ２０によるフォー力ツシング機
構２１、パルスモータ２２ａによる焦点合せ機構２２、
反１鏡２３、カラーＣ，Ｃ。Further, at one end 13a of the adjustment screw 13, a color camera 15 (c, c, D<charge-coupled device) equipped with a light source 14 as an inspection head is connected to the elastic force of a coil spring 16 on the peripheral wall of the center hole W1. It is provided so that it can be energized by 111WeL. That is, these C, C. As shown enlarged in FIGS. 3 and 4, the D color camera 15 has C, C, and C colors in the housing 17. D color camera body 18
is provided on the hole peripheral wall of the center hole W1 by being biased by the elasticity of the coil spring 16, and these C, C. Inside the D-color camera body 18, there are a photographing lens 19, a force-twisting mechanism 21 using a pulse motor 20 for focusing the lens, a focusing mechanism 22 using a pulse motor 22a,
Anti-1 mirror 23, color C, C.
Ｄ（カラー電荷結合素子）２４及び上記光源１４が設け
られている。D (color charge coupled device) 24 and the light source 14 are provided.
特に、上記光１１４は、第５図に示されるように、撮影
窓２５の周りに中心孔Ｗ１の軸方向の照明ランプ１４ａ
と中心孔Ｗ１の周方向の照明ランプ１４ｂとで構成され
ており、これによって被写体からのハレーションを打消
して孔周壁の亀裂Ｗ１’やピンホールを探傷し易くして
いる（第６図（Ａ）、（Ｂ）及び第７図参照）。In particular, as shown in FIG.
and an illumination lamp 14b in the circumferential direction of the center hole W1, which cancels out halation from the subject and makes it easier to detect cracks W1' and pinholes in the peripheral wall of the hole (see Fig. 6 (A). ), (B) and Figure 7).
従って、今、図示されないタコジェネレータを備えた直
進車によって、上記ケース本体１を押進すると共に、上
記駆動モータ１０を駆動し、同時に、上記Ｃ，Ｃ，Ｄカ
ラーカメラ１５を中心孔Ｗ１の周壁に弾発的に当接する
ことにより、このＣ，Ｃ．Ｄカラーカメラ１５は、中心
孔Ｗ１内を回転しながら直進する。そして、上記エンコ
ーダ８は、上記Ｃ，Ｃ．Ｄカラーカメラ１５の回転量を
測定しながら、上記中心孔Ｗ１の周壁に生じた亀裂やピ
ンホール等の位置を正確に検出して記録し得るようにな
っている。Therefore, now, a straight vehicle equipped with a tacho generator (not shown) pushes the case main body 1, drives the drive motor 10, and simultaneously moves the C, C, D color camera 15 to the peripheral wall of the center hole W1. By elastically contacting C, C. The D color camera 15 moves straight through the center hole W1 while rotating. The encoder 8 encodes the C, C. While measuring the amount of rotation of the D color camera 15, it is possible to accurately detect and record the positions of cracks, pinholes, etc. that have occurred in the peripheral wall of the center hole W1.
次に、第８図に示される本発明の他の実施例は、ナツト
部材１２に重錘２６備えた逆ねじを刻設した螺杵２７を
螺装したものであって、上記Ｃ，Ｃ。Next, in another embodiment of the present invention shown in FIG. 8, a screw punch 27 with a weight 26 and a reverse thread is screwed onto the nut member 12, as shown in C and C above.
Ｄカラカメラ１５に対して押圧力を幇助するように構成
したものであり、上述した具体例と同じ構成をなすもの
である。It is configured to assist the pressing force on the D color camera 15, and has the same configuration as the specific example described above.
又一方、第９図に示される本発明の他の実施例は、回転
体５の先端部５ｂにＣ，Ｃ，Ｄカラーカメラ１５を連結
杆２８で直接的に設けたものであって、上述した各実施
例と実質的に同一構成をなすものである。On the other hand, in another embodiment of the present invention shown in FIG. 9, a C, C, D color camera 15 is directly provided on the tip 5b of the rotating body 5 by a connecting rod 28, and the above-mentioned This embodiment has substantially the same configuration as each of the embodiments described above.
以上述べたように本発明によれば、複数の支持ローラ２
を備えたケース本体１内にカメラ回路基板４を内蔵した
回転体５を回転自在に嵌装し、この回転体５の内端部５
ａに歯車６を設け、この歯車６にエンコーダ８の歯車７
を噛合して設け、上記回転体５の先端部５ｂに直接又は
間接的に光源１４を備えたＣ、Ｃ，Ｄカラーカメラ１５
を孔周壁に付勢して囮影し得るように設けであるので、
正確な探傷検査をすることができるばかりでなく、連続
的に効率よく探傷できるし、さらに、画像倍率を一定に
して、画像の判定を容易にすると共に、Ｃ，Ｃ．Ｄカラ
ーカメラを使用しているから、孔表面の塵埃や錆、磁粉
模様を有効適切に判別できるようになり、検査精度の向
上を図ることができる。As described above, according to the present invention, the plurality of support rollers 2
A rotary body 5 having a built-in camera circuit board 4 is rotatably fitted into a case body 1 equipped with an inner end 5 of the rotary body 5.
A is provided with a gear 6, and this gear 6 is connected to the gear 7 of the encoder 8.
C, C, D color camera 15 provided in mesh with each other and provided with a light source 14 directly or indirectly at the tip 5b of the rotating body 5.
Since it is provided so that it can be biased against the circumferential wall of the hole and cast a decoy image,
Not only can accurate flaw detection be performed, but flaw detection can be carried out continuously and efficiently.Furthermore, image magnification can be kept constant to facilitate image judgment, and C, C. Since a D color camera is used, dust, rust, and magnetic particle patterns on the surface of the hole can be effectively and appropriately distinguished, and inspection accuracy can be improved.
第１図は、本発明による長孔周壁検査装置の側面図、第
２図は、第１図中の鎖線Ａ−Ａに沿う拡大断面図、第３
図は、第１図中の鎖線Ｂ−８に沿う拡大断面図、第４図
は、第３図中の鎖線Ｃ−Ｃに沿う断面図、第５図は、第
３図中の鎖線Ｄ−Ｄに沿う底面図、第６図（Ａ）、（Ｂ
）は本発明の詳細な説明するための図、第７図は、本発
明の被検査体の周壁の傷損等を示す図、第８図及び第９
図は、本発明の他の実施例を示す各図、第１０図は、従
来の長孔周壁検査装置の側面図、第１１図は、上記長孔
周壁検査装置の検査ヘッドの斜面図、第１２図は、従来
の伯の長孔周壁検査装置の斜面図である。
１・・・ケース本体、２・・・支持ローラ、４・・・カ
メラ回路基板、５・・・回転体、８・・・エンコーダ、
１３・・・調整螺杆、１４・・・光源、１５・・・Ｃ，
Ｃ．Ｄカラーカメラ、１９・・・撤彰レンズ、２３・・
・反射鏡、２４・・・カラーｃ、ｃ、ｏ。
出願人代理人 猪 股 清俤ユＳ
）６図
）８図
集、９困FIG. 1 is a side view of the long hole peripheral wall inspection device according to the present invention, FIG. 2 is an enlarged sectional view taken along the chain line A-A in FIG. 1, and FIG.
The figure is an enlarged sectional view taken along the dashed line B-8 in FIG. 1, FIG. 4 is a sectional view taken along the dashed line CC in FIG. 3, and FIG. Bottom view along D, Figure 6 (A), (B
) is a diagram for explaining the present invention in detail, FIG. 7 is a diagram showing damage etc. to the peripheral wall of the object to be inspected of the present invention, and FIGS. 8 and 9 are diagrams.
The figures show other embodiments of the present invention, FIG. 10 is a side view of a conventional elongated hole circumferential wall inspection device, FIG. FIG. 12 is a perspective view of a conventional Haku long hole circumferential wall inspection device. DESCRIPTION OF SYMBOLS 1... Case body, 2... Support roller, 4... Camera circuit board, 5... Rotating body, 8... Encoder,
13...Adjustment screw, 14...Light source, 15...C,
C. D color camera, 19...withdrawal lens, 23...
・Reflector, 24...color c, c, o. Applicant's agent Kiyoyu Inomata S) 6 figures) Collection of 8 figures, 9 problems
Claims (1)
路基板を内蔵した回転体を回転自在に嵌装し、この回転
体の内端部に歯車を設け、この歯車にエンコーダの歯車
を噛合して設け、上記回転体の先端部に直接又は間接的
に光源を備えたＣ．Ｃ．Ｄカラーカメラを孔周壁に付勢
して撮影し得るように設けたことを特徴とする長孔周壁
検査装置。 ２、回転体の先端部にＣ．Ｃ．Ｄカラーカメラを直接的
に設けたことを特徴とする特許請求の範囲第１項記載の
長孔周壁検査装置。 ３、回転体の先端部に調整螺杆を螺装し、この調整螺杆
にＣ．Ｃ．Ｄカラーカメラを設けたことを特徴とする特
許請求の範囲第１項記載の長孔周壁検査装置。[Claims] 1. A rotating body containing a built-in camera circuit board is rotatably fitted into a case body equipped with a plurality of support rollers, a gear is provided at the inner end of the rotating body, and a gear is provided at the inner end of the rotating body. The C.I.C. C. An apparatus for inspecting a circumferential wall of a long hole, characterized in that a D color camera is provided so as to be able to take pictures by urging the circumferential wall of the hole. 2.C. C. 2. The elongated hole peripheral wall inspection device according to claim 1, further comprising a D-color camera directly provided. 3. Screw an adjustment screw onto the tip of the rotating body, and attach a C. C. The elongated hole surrounding wall inspection device according to claim 1, characterized in that a D color camera is provided.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26726284A JPS61144551A (en) | 1984-12-18 | 1984-12-18 | Long hole peripheral wall inspecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26726284A JPS61144551A (en) | 1984-12-18 | 1984-12-18 | Long hole peripheral wall inspecting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61144551A true JPS61144551A (en) | 1986-07-02 |
| JPH045342B2 JPH045342B2 (en) | 1992-01-31 |
Family
ID=17442396
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP26726284A Granted JPS61144551A (en) | 1984-12-18 | 1984-12-18 | Long hole peripheral wall inspecting device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61144551A (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0375408U (en) * | 1989-11-27 | 1991-07-29 | ||
| KR101202185B1 (en) | 2010-10-21 | 2012-11-20 | 주식회사 에네스지 | Automated ultrasonic testing method which uses the rotor bore for the wheel dovetail of turbine |
| WO2013118917A1 (en) * | 2012-02-09 | 2013-08-15 | 株式会社Ihi | Inside-diameter measurement device |
| JPWO2013118912A1 (en) * | 2012-02-09 | 2015-05-11 | 株式会社Ihi | Inner diameter measuring device |
| US9145924B2 (en) | 2012-02-09 | 2015-09-29 | Ihi Corporation | Rotation restricting device for rotation machine |
| US9372061B2 (en) | 2012-02-09 | 2016-06-21 | Ihi Corporation | Inner diameter measuring device |
| US9410795B2 (en) | 2012-02-09 | 2016-08-09 | Ihi Corporation | Inner diameter measuring device |
| US9470509B2 (en) | 2012-02-09 | 2016-10-18 | Ihi Corporation | Inner diameter measuring device and inner diameter measuring method |
| US9518817B2 (en) | 2012-02-09 | 2016-12-13 | Ihi Corporation | Inner diameter measuring device |
| US9612109B2 (en) | 2012-02-09 | 2017-04-04 | Ihi Corporation | Inner diameter measuring device |
| WO2017145204A1 (en) * | 2016-02-26 | 2017-08-31 | パナソニックＩｐマネジメント株式会社 | Imaging device |
-
1984
- 1984-12-18 JP JP26726284A patent/JPS61144551A/en active Granted
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0375408U (en) * | 1989-11-27 | 1991-07-29 | ||
| KR101202185B1 (en) | 2010-10-21 | 2012-11-20 | 주식회사 에네스지 | Automated ultrasonic testing method which uses the rotor bore for the wheel dovetail of turbine |
| WO2013118917A1 (en) * | 2012-02-09 | 2013-08-15 | 株式会社Ihi | Inside-diameter measurement device |
| JP2013164275A (en) * | 2012-02-09 | 2013-08-22 | Ihi Corp | Inner diameter measuring apparatus |
| JPWO2013118912A1 (en) * | 2012-02-09 | 2015-05-11 | 株式会社Ihi | Inner diameter measuring device |
| US9145924B2 (en) | 2012-02-09 | 2015-09-29 | Ihi Corporation | Rotation restricting device for rotation machine |
| US9372073B2 (en) | 2012-02-09 | 2016-06-21 | Ihi Corporation | Inner diameter measuring device |
| US9372061B2 (en) | 2012-02-09 | 2016-06-21 | Ihi Corporation | Inner diameter measuring device |
| US9410795B2 (en) | 2012-02-09 | 2016-08-09 | Ihi Corporation | Inner diameter measuring device |
| US9429409B2 (en) | 2012-02-09 | 2016-08-30 | Ihi Corporation | Inner diameter measuring device |
| US9470509B2 (en) | 2012-02-09 | 2016-10-18 | Ihi Corporation | Inner diameter measuring device and inner diameter measuring method |
| US9518817B2 (en) | 2012-02-09 | 2016-12-13 | Ihi Corporation | Inner diameter measuring device |
| US9612109B2 (en) | 2012-02-09 | 2017-04-04 | Ihi Corporation | Inner diameter measuring device |
| WO2017145204A1 (en) * | 2016-02-26 | 2017-08-31 | パナソニックＩｐマネジメント株式会社 | Imaging device |
| JPWO2017145204A1 (en) * | 2016-02-26 | 2018-11-22 | パナソニックＩｐマネジメント株式会社 | Imaging device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH045342B2 (en) | 1992-01-31 |
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