JPH03273108A - Supporter for probe holder of ultrasonic measuring instrument - Google Patents
Supporter for probe holder of ultrasonic measuring instrumentInfo
- Publication number
- JPH03273108A JPH03273108A JP7183590A JP7183590A JPH03273108A JP H03273108 A JPH03273108 A JP H03273108A JP 7183590 A JP7183590 A JP 7183590A JP 7183590 A JP7183590 A JP 7183590A JP H03273108 A JPH03273108 A JP H03273108A
- Authority
- JP
- Japan
- Prior art keywords
- probe
- holder
- probe holder
- spring
- arm
- 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
- 239000000523 sample Substances 0.000 title claims abstract description 88
- 238000005260 corrosion Methods 0.000 claims description 3
- 230000007797 corrosion Effects 0.000 claims description 3
- 238000006073 displacement reaction Methods 0.000 abstract 4
- 239000004677 Nylon Substances 0.000 description 6
- 229920001778 nylon Polymers 0.000 description 6
- 238000005259 measurement Methods 0.000 description 4
- 238000012546 transfer Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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
- G01N29/04—Analysing solids
- G01N29/07—Analysing solids by measuring propagation velocity or propagation time of acoustic waves
-
- 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
- G01N2291/02—Indexing codes associated with the analysed material
- G01N2291/025—Change of phase or condition
- G01N2291/0258—Structural degradation, e.g. fatigue of composites, ageing of oils
-
- 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
- G01N2291/02—Indexing codes associated with the analysed material
- G01N2291/028—Material parameters
- G01N2291/02854—Length, thickness
-
- 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
- G01N2291/04—Wave modes and trajectories
- G01N2291/044—Internal reflections (echoes), e.g. on walls or defects
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は超音波を設備配管等の外表面から入射し、その
反射波受信までに要する時間をもって配管等の肉厚を測
定できるようにした超音波測定装置の探触子ホルダーの
支持具に関する。[Detailed Description of the Invention] (Field of Industrial Application) The present invention makes it possible to measure the wall thickness of piping, etc. by injecting ultrasonic waves from the outer surface of equipment piping, etc. and measuring the time required for receiving the reflected waves. The present invention relates to a support for a probe holder of an ultrasonic measuring device.
（従来の技術〉
設備配管等が鋼管型である場合、内周面の酸化浸蝕によ
って管の肉厚が変化する。(Prior Art) When equipment piping, etc. is of the steel pipe type, the wall thickness of the pipe changes due to oxidation corrosion on the inner circumferential surface.
部分的には剥落あるいは膨出するなどの管内壁面変形で
ある。これらの変形については超音波を使用した配管の
モニタリングによってその厚さを測定する場合、配管の
直管部のみに限定している。This is deformation of the inner wall surface of the pipe, such as partial peeling or bulging. Regarding these deformations, when measuring the thickness by monitoring the piping using ultrasonic waves, it is limited to only the straight pipe section of the piping.
曲管部を対象とした配管残存肉厚自動測定装置の開発は
配管外面の曲率の変化等に探触子を追随させることが難
しく未だ存在していないと思われる。The development of an automatic pipe residual wall thickness measuring device for curved pipe sections does not seem to exist yet because it is difficult to make the probe follow changes in the curvature of the pipe's outer surface.
（発明が解決しようとする課題〉
直管部用の超音波測定装置では探触子を収納した探触子
ホルダーを測定方向へ走らせる転勤ユニットは直管軸を
基軸に設置しているために曲管部では管軸の偏位ばかり
でなく、曲率か軸方向位置。(Problem to be solved by the invention) In ultrasonic measurement devices for straight pipes, the transfer unit that runs the probe holder housing the probe in the measurement direction is installed with the straight pipe axis as the base axis. In curved pipe sections, it is not only the deviation of the pipe axis, but also the curvature or axial position.
円周方向位置において著しく変化し、探触子と配管外面
との適正な間接接触が難しい。The circumferential position varies significantly, making it difficult to make proper indirect contact between the probe and the outer surface of the pipe.
本発明は上記事情に鑑みてなされたものであって、その
目的は探触子ホルダーの支持具によってセンサーの軸方
向偏位および管径の曲率変化を吸収することによって、
ある程度曲管部の超音波測定が可能となるようにした探
触子ホルダーの支持具を提供することにある。The present invention has been made in view of the above circumstances, and its purpose is to absorb the axial deviation of the sensor and the curvature change of the tube diameter by the support of the probe holder.
It is an object of the present invention to provide a support for a probe holder that enables ultrasonic measurement of a curved pipe portion to some extent.
〈課題を解決するための手段〉
上記目的を達成するために本発明に係る超音波測定装置
の探触子ホルダーの支持具は探触子を被測定体の表面に
沿って摺動移動させ、該探触子から被測定体へ超音波を
入射し、該入射波の反射波受信までの時間的遅れにて被
測定体の厚み、腐蝕状況等を知る超音波測定装置の探触
子支持具において、探触子を収容する探触子ホルダー内
筒を探触子ホルダー外筒内にネジで上下動自在に吊持し
、さらに探触子ホルダー内筒内にバネを収め、該バネて
探触子を下方へ押圧付勢しながら該探触子を該探触子ホ
ルダー内筒に上下動可能に収めるとともに、該探触子ホ
ルダー外筒はこれを支持アームに回動自在に軸着し、該
支持アームの基端部には水平に軸を固着し、該軸の基部
を回動自在にアームホルダー内に遊嵌し、該軸の先端部
は該アームホルダー内に一端を固定した捩りバネにて該
軸の円周方向に一方的に付勢し、かつ該アームホルダー
は固定枠内にバネで下方へ付勢しておきながら上下動自
在に収めてなるのである。<Means for Solving the Problems> In order to achieve the above object, the support for the probe holder of the ultrasonic measuring device according to the present invention slides the probe along the surface of the object to be measured, A probe support for an ultrasonic measuring device that injects ultrasonic waves from the probe into a measured object and determines the thickness, corrosion status, etc. of the measured object based on the time delay until the reflected wave of the incident wave is received. In this method, a probe holder inner cylinder that accommodates the probe is suspended in the probe holder outer cylinder with a screw so that it can move up and down, and a spring is further housed in the probe holder inner cylinder, and the spring is used for the probe. The probe is housed in the inner tube of the probe holder so as to be movable up and down while pressing the probe downward, and the outer tube of the probe holder is rotatably attached to the support arm. , a shaft is fixed horizontally to the base end of the support arm, the base of the shaft is rotatably fitted loosely into the arm holder, and the tip of the shaft is a torsion type with one end fixed within the arm holder. The shaft is biased unilaterally in the circumferential direction by a spring, and the arm holder is housed in a fixed frame so as to be able to move up and down while being biased downward by the spring.
（作 用〉
以上の構成によって、探触子ホルダー外筒内に探触子ホ
ルダー内筒を重畳するネジをまわし探触子のレベル調整
を行なう。また、探触子ホルダー内筒の内部において探
触子を下方へ押圧するバネが管径の曲率変化に対応する
。このことは、配管の軸方向偏位にも若干対応すること
ができる。すなわち、探触子の接触面の上下方向への変
化をバネで吸収できるからである。(Function) With the above configuration, the level of the probe can be adjusted by turning the screw that overlaps the inner tube of the probe holder with the outer tube of the probe holder. The spring that presses the probe downward responds to changes in the curvature of the tube diameter.This can also accommodate slight deviations in the axial direction of the tube.In other words, the contact surface of the probe changes in the vertical direction. This is because the spring can absorb changes.
さらにまた、管径の曲率変化に対しては支持アームをア
ームホルダー内に回動できるように遊嵌しており、その
先端部が捩りバネで一方向へ付勢しであるために捩りバ
ネの付勢方向へ容易に追従する。Furthermore, the support arm is loosely fitted into the arm holder so that it can rotate in response to changes in the curvature of the pipe diameter, and its tip is biased in one direction by a torsion spring. Easily follows the biasing direction.
軸方向への大きな偏位に対しては探触子ホルダー外筒が
支持アームに回動自在に軸着しであるために軸着点を回
動輪にして対応できる。また測定しようとする配管の軸
方向偏位が予想以上に大きい場合には探触子ホルダー固
定枠を支持している探触子ホルダー支持ブラケット自体
を上下の方向へ移動しネジで固定すれば良い。Since the probe holder outer cylinder is rotatably attached to the support arm, large deviations in the axial direction can be handled by using the pivot point as a rotating ring. In addition, if the axial deviation of the piping to be measured is larger than expected, simply move the probe holder support bracket itself that supports the probe holder fixing frame in the vertical direction and fix it with screws. .
（実 施 例）
以下、本発明の好適な実施例について図面を参照にして
詳細に説明する。(Embodiments) Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.
第１図は探触子ホルダー１と、これを支持する探触子ホ
ルダー支持具２とを示す側面図で、この探触子ホルダー
支持具には図示していない転勤ユニットに固定するもの
である。すなわち、転勤ユニットは探触子ホルダー１を
配管回りに接触させながら移動運動を行なわせるための
ユニットである。探触子ホルダー１を支持する探触子ホ
ルダー支持具２はこの転勤ユニットに取り付けるのであ
る。探触子ホルダー支持具２の先端には先か二叉に分か
れて、この二叉で探触子ホルダー１を挟着支持するよう
にした支持アーム３が設けである。FIG. 1 is a side view showing a probe holder 1 and a probe holder support 2 that supports it, to which a transfer unit (not shown) is fixed. . That is, the transfer unit is a unit for moving the probe holder 1 while making contact with the surroundings of the pipe. A probe holder support 2 for supporting the probe holder 1 is attached to this transfer unit. At the tip of the probe holder support 2, there is provided a support arm 3 which is split into two at the front and which supports the probe holder 1 by sandwiching the two forks.
この支持アーム３で探触子ホルダー１を構成する円筒形
状の蓋のように形成した探触子ホルダー外筒４の側面を
回動自在に軸支している。This support arm 3 rotatably supports the side surface of a probe holder outer cylinder 4 formed like a cylindrical lid constituting the probe holder 1.
探触子ホルダー支持具２の後端部は垂直板５に長孔を形
成し、この長孔の中にネジ６を通している。すなわち、
ネジ６を測定装置本体に固定するとき垂直板５に形成し
た長孔によって垂直板５自体を上下方向へ移動させるこ
とができる。そして、この垂直板５と直交する水平方向
へ探触子ホルダー支持ブラケット７を設け、ざらに探触
子ホルダー支持ブラケット７には横方向へ長孔８を刻設
している。支持アーム３は上記探触子ホルダー支持ブラ
ケット７の先端部に設けているのである。したがって、
支持アーム３と探触子ホルダー支持ブラケット７との間
にボルト９を設け、ボルト９を長孔８内に通すようにし
て探触子ホルダー支持具２の延長方向長さを調整するよ
うにできる。A long hole is formed in the vertical plate 5 at the rear end of the probe holder support 2, and a screw 6 is passed through the long hole. That is,
When fixing the screws 6 to the measuring device main body, the vertical plate 5 itself can be moved up and down by the long holes formed in the vertical plate 5. A probe holder support bracket 7 is provided in the horizontal direction perpendicular to the vertical plate 5, and a long hole 8 is roughly cut in the probe holder support bracket 7 in the lateral direction. The support arm 3 is provided at the tip of the probe holder support bracket 7. therefore,
A bolt 9 is provided between the support arm 3 and the probe holder support bracket 7, and the length of the probe holder support 2 in the extending direction can be adjusted by passing the bolt 9 through the elongated hole 8. .
さらに詳細を第２図に断面で示す。Further details are shown in cross section in FIG.
探触子ホルダー外筒４の内部にピストン状の探触子ホル
ダー内筒１０を探触子ホルダー外筒４の外部から垂直に
貫通させて探触子ホルダー内筒１０の上面に螺入した調
整ネジ１１によって探触子ホルダー内筒１０を探触子ホ
ルダー外筒４内に重畳している。そして、調整ネジ１１
が外筒４の上の方へ抜は出ないように探触子ホルダー外
筒４の天面に当たる位置において調整ネジ１１に止めリ
ング１２を嵌着している。Adjustment in which a piston-shaped probe holder inner cylinder 10 is passed vertically from the outside of the probe holder outer cylinder 4 into the probe holder outer cylinder 4 and screwed into the upper surface of the probe holder inner cylinder 10. The probe holder inner cylinder 10 is superimposed on the probe holder outer cylinder 4 by screws 11. And adjustment screw 11
A retaining ring 12 is fitted onto the adjustment screw 11 at a position that touches the top surface of the probe holder outer cylinder 4 so that the probe holder does not come out upwards of the outer cylinder 4.
さらにコイル状に形成した反発バネ１３を探触子ホルダ
ー内筒１０の内部に反発方向を垂直にして収め、この反
発バネ１３を圧縮する方向に探触子１４が収めである。Furthermore, a repulsion spring 13 formed in a coil shape is housed inside the probe holder inner cylinder 10 with the direction of repulsion perpendicular, and the probe 14 is housed in the direction in which the repulsion spring 13 is compressed.
探触子ホルダー外筒４の先端部には、すなわち下端部に
は中心部に探触子１４が収まる貫通孔を穿設したナイロ
ンシュー１５を嵌入している。ナイロンシュー１５の底
端部は凹曲面に形成してあって、この凹曲面は配管の外
周曲率面に一致する。したがって配管の外径にχ、Ｉ応
できるように色々な曲率に形成した凹曲面を具備するナ
イロンシュー１５が多数用意しである。A nylon shoe 15 having a through hole in the center in which the probe 14 is accommodated is fitted into the tip of the probe holder outer cylinder 4, that is, the lower end. The bottom end of the nylon shoe 15 is formed into a concave curved surface, and this concave curved surface corresponds to the outer peripheral curvature surface of the pipe. Therefore, a large number of nylon shoes 15 are prepared which have concave curved surfaces formed with various curvatures so as to correspond to the outer diameter of the pipe.
上記ナイロンシュー１５を被測定体である配管にあてが
ったとき調整ネジ１１にて探触子１４の上下方向をある
程度最良な位置に調整するとともにナイロンシュー１５
の反押圧方向への力ないし配管の軸方向偏位による探触
子１４のレベル偏位はバネ１３が伸縮することによって
探触子１４を上下方向へ追従移動させることができる。When the nylon shoe 15 is applied to the piping that is the object to be measured, the vertical direction of the probe 14 is adjusted to a certain optimum position using the adjustment screw 11, and the nylon shoe 15
The level deviation of the probe 14 due to the force in the counter-pressing direction or the axial deviation of the piping can be caused to follow and move the probe 14 in the vertical direction by the expansion and contraction of the spring 13.
一方支持アーム３の基端部には水平に軸１６を固定して
おり、アームホルダー１７に軸１６を回動自在に挿通さ
せ、さらにアームホルダー１７に挿通させた軸１６の先
端は捩りバネ１８に係合させ、一方向へ若干回動するよ
うに付勢している。On the other hand, a shaft 16 is horizontally fixed to the base end of the support arm 3, and the shaft 16 is rotatably inserted through an arm holder 17, and the tip of the shaft 16 inserted through the arm holder 17 is attached to a torsion spring 18. It is urged to rotate slightly in one direction.
さらにまた、アームホルダー１７は軸１６を水平に貫通
させたまま固定枠１９内に上下に移動できるように装着
してあって、固定枠１９内に収めたコイルバネ２０によ
って常に下方へ付勢している。すなわち支持アーム３は
アームホルダー１７に一方向へ回動付勢させなから回動
自在に、かつ固定枠１９内に上下動自在に取り付けてい
る。この固定枠１９が前述した支持ブラケット７に固定
しである。特に、捩りバネ１８はナイロンシュー１５の
底端面が凹曲面になっていることと相俟って配管の周方
向クリアランスの吸収に有効である。Furthermore, the arm holder 17 is mounted in a fixed frame 19 so as to be movable up and down with the shaft 16 passing through it horizontally, and is always urged downward by a coil spring 20 housed in the fixed frame 19. There is. That is, the support arm 3 is rotatably attached to the arm holder 17 without being urged to rotate in one direction, and is mounted within the fixed frame 19 so as to be movable up and down. This fixed frame 19 is fixed to the support bracket 7 mentioned above. In particular, the torsion spring 18 is effective in absorbing the circumferential clearance of the piping in combination with the fact that the bottom end surface of the nylon shoe 15 is a concave curved surface.
（効 果）
以上詳細に説明したように、本発明に係る超音波測定装
置の探触子ホルダーの支持具によれば探触子ホルダー自
体を上下移動あるいは前後左右に回動移動させることが
センサーの接触反力によって自由に得られるので、配管
の直管部から曲管部へ移行する曲管部の測定に対応でき
る効果がある。(Effects) As explained in detail above, according to the support for the probe holder of the ultrasonic measuring device according to the present invention, the probe holder itself can be moved up and down or rotated back and forth and left and right. Since it can be freely obtained by the contact reaction force of , it has the effect of being able to cope with the measurement of a curved pipe section that transitions from a straight pipe section to a curved pipe section.
第１図は探触子ホルダーとその支持具とを合わせて示す
側面図、第２図は探触子ホルダーの内部機構と合わせて
支持具の構成を示す断面図である。
１・・・・・・探触子ホルダー
２・・・・・・探触子ホルダー支持具
３・・・・・・支持アーム
４・・・・・・探触子ホルダー外筒
５・・・・・・垂直板 ６・・・・・・ネジ
７・・・・・・探触子ホルダー支持ブラケット８・・・
・・・長孔 ９・・・・・ボルト１０・・
・探触子ホルダー内筒FIG. 1 is a side view showing the probe holder and its support together, and FIG. 2 is a sectional view showing the structure of the support together with the internal mechanism of the probe holder. 1... Probe holder 2... Probe holder support 3... Support arm 4... Probe holder outer cylinder 5... ... Vertical plate 6 ... Screw 7 ... Probe holder support bracket 8 ...
...Long hole 9...Bolt 10...
・Probe holder inner cylinder
Claims (1)
子から被測定体へ超音波を入射し、該入射波の反射波受
信までの時間的遅れにて被測定体の厚み、腐蝕状況等を
知る超音波測定装置の探触子支持具において、探触子を
収容する探触子ホルダー内筒を探触子ホルダー外筒内に
ネジで上下動自在に吊持し、さらに探触子ホルダー内筒
内にバネを収め、該バネで探触子を下方へ押圧付勢しな
がら該探触子を該探触子ホルダー内筒に上下動可能に収
めるとともに、該探触子ホルダー外筒はこれを支持アー
ムに回動自在に軸着し、該支持アームの基端部には水平
に軸を固着し、該軸の基部を回動自在にアームホルダー
内に遊嵌し、該軸の先端部は該アームホルダー内に一端
を固定した捩りバネにて該軸の円周方向に一方的に付勢
し、かつ該アームホルダーは固定枠内にバネで下方へ付
勢しておきながら上下動自在に収めてなることを特徴と
する超音波測定装置の探触子ホルダーの支持具。The probe is slid along the surface of the object to be measured, and ultrasonic waves are injected from the probe into the object to be measured, and there is a time delay until the reflected wave of the incident wave is received. In a probe support for an ultrasonic measuring device that measures thickness, corrosion status, etc., the probe holder inner tube that accommodates the probe is suspended in the probe holder outer tube with screws so that it can move up and down. Furthermore, a spring is housed in the inner cylinder of the probe holder, and while the spring presses and urges the probe downward, the probe is housed in the inner cylinder of the probe holder so as to be movable up and down, and the probe The child holder outer cylinder is rotatably attached to a support arm, a shaft is fixed horizontally to the base end of the support arm, and the base of the shaft is rotatably fitted into the arm holder. , the tip of the shaft is biased unilaterally in the circumferential direction of the shaft by a torsion spring whose one end is fixed within the arm holder, and the arm holder is biased downward by a spring within the fixed frame. A support for a probe holder of an ultrasonic measuring device, characterized in that the probe holder is housed so that it can be moved up and down while being kept in place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7183590A JPH0678906B2 (en) | 1990-03-23 | 1990-03-23 | Ultrasonic measuring device probe support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7183590A JPH0678906B2 (en) | 1990-03-23 | 1990-03-23 | Ultrasonic measuring device probe support |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03273108A true JPH03273108A (en) | 1991-12-04 |
| JPH0678906B2 JPH0678906B2 (en) | 1994-10-05 |
Family
ID=13472000
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7183590A Expired - Lifetime JPH0678906B2 (en) | 1990-03-23 | 1990-03-23 | Ultrasonic measuring device probe support |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0678906B2 (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100943073B1 (en) * | 2008-05-28 | 2010-02-18 | 나우기연주식회사 | Ultrasonic transducer holder for automatic ultrasonic tester |
| US20120006132A1 (en) * | 2010-07-09 | 2012-01-12 | Denis Faucher | Probe holder adjustable to conform to test surfaces |
| JP6222396B1 (en) * | 2016-07-27 | 2017-11-01 | 中国電力株式会社 | Measuring jig for film thickness meter |
| JP6237955B1 (en) * | 2016-11-07 | 2017-11-29 | 中国電力株式会社 | Film thickness alignment tool |
| JP6369646B1 (en) * | 2017-02-01 | 2018-08-08 | 中国電力株式会社 | Film thickness alignment tool |
| JP6369657B1 (en) * | 2017-10-10 | 2018-08-08 | 中国電力株式会社 | Film thickness alignment tool |
| JP6380713B1 (en) * | 2017-10-26 | 2018-08-29 | 中国電力株式会社 | Film thickness alignment tool |
| CN109373944A (en) * | 2018-12-04 | 2019-02-22 | 湖南大学 | A kind of air foil bearing air-film thickness measuring system based on ultrasound and method |
| CN113155963A (en) * | 2021-03-25 | 2021-07-23 | 武汉中岩科技股份有限公司 | Sensor device suitable for impact echo method detection |
-
1990
- 1990-03-23 JP JP7183590A patent/JPH0678906B2/en not_active Expired - Lifetime
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100943073B1 (en) * | 2008-05-28 | 2010-02-18 | 나우기연주식회사 | Ultrasonic transducer holder for automatic ultrasonic tester |
| US20120006132A1 (en) * | 2010-07-09 | 2012-01-12 | Denis Faucher | Probe holder adjustable to conform to test surfaces |
| JP6222396B1 (en) * | 2016-07-27 | 2017-11-01 | 中国電力株式会社 | Measuring jig for film thickness meter |
| WO2018020601A1 (en) * | 2016-07-27 | 2018-02-01 | 中国電力株式会社 | Measurement jig for film thickness meter |
| JP6237955B1 (en) * | 2016-11-07 | 2017-11-29 | 中国電力株式会社 | Film thickness alignment tool |
| WO2018083800A1 (en) * | 2016-11-07 | 2018-05-11 | 中国電力株式会社 | Alignment tool for film thickness meter |
| JP6369646B1 (en) * | 2017-02-01 | 2018-08-08 | 中国電力株式会社 | Film thickness alignment tool |
| WO2018142519A1 (en) * | 2017-02-01 | 2018-08-09 | 中国電力株式会社 | Positioning jig for film thickness gauge |
| JP6369657B1 (en) * | 2017-10-10 | 2018-08-08 | 中国電力株式会社 | Film thickness alignment tool |
| WO2019073524A1 (en) * | 2017-10-10 | 2019-04-18 | 中国電力株式会社 | Alignment tool for film thickness meter |
| JP6380713B1 (en) * | 2017-10-26 | 2018-08-29 | 中国電力株式会社 | Film thickness alignment tool |
| WO2019082342A1 (en) * | 2017-10-26 | 2019-05-02 | 中国電力株式会社 | Film thickness gauge-positioning jig |
| CN109373944A (en) * | 2018-12-04 | 2019-02-22 | 湖南大学 | A kind of air foil bearing air-film thickness measuring system based on ultrasound and method |
| CN109373944B (en) * | 2018-12-04 | 2021-11-05 | 湖南大学 | Air foil bearing air film thickness measuring system and method based on ultrasonic waves |
| CN113155963A (en) * | 2021-03-25 | 2021-07-23 | 武汉中岩科技股份有限公司 | Sensor device suitable for impact echo method detection |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0678906B2 (en) | 1994-10-05 |
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