JP2006046949A - Ultrasonic flaw/crack inspection method - Google Patents

Ultrasonic flaw/crack inspection method Download PDF

Info

Publication number
JP2006046949A
JP2006046949A JP2004224266A JP2004224266A JP2006046949A JP 2006046949 A JP2006046949 A JP 2006046949A JP 2004224266 A JP2004224266 A JP 2004224266A JP 2004224266 A JP2004224266 A JP 2004224266A JP 2006046949 A JP2006046949 A JP 2006046949A
Authority
JP
Japan
Prior art keywords
inspection
vibrator
ultrasonic
support member
horn
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.)
Pending
Application number
JP2004224266A
Other languages
Japanese (ja)
Inventor
Toshiaki Miyamoto
年昭 宮本
Tsutomu Umeda
勉 梅田
Hitoshi Ogino
均 荻野
Hiromi Iyoda
啓美 伊与田
Haruhisa Hirose
晴久 広瀬
Kunio Shinohara
久仁夫 篠原
Naoki Tsukuda
直樹 佃
Masaaki Kobayashi
正明 小林
Noriaki Mitsube
徳明 光部
Tamon Kamisaka
多聞 上坂
Shunsuke Honda
俊介 本多
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Honda Electronics Co Ltd
Original Assignee
Honda Electronics Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Honda Electronics Co Ltd filed Critical Honda Electronics Co Ltd
Priority to JP2004224266A priority Critical patent/JP2006046949A/en
Publication of JP2006046949A publication Critical patent/JP2006046949A/en
Pending legal-status Critical Current

Links

Images

Landscapes

  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To solve the problems, wherein inspection of flaws or cracks on the inspection object surface requires much labor, and a work for inspection of flaws or cracks inside the inspection object also requires much labor. <P>SOLUTION: This method is described as follows the inspection object 1 is supported by a support member 2; a horn 4 of a Langevin type ultrasonic vibrator 3 is fixed to the support member 2; in the ultrasonic vibrator 3, a piezoelectric body vibrator 7 is sandwiched between metal blocks 5, 6; the horn 4 is constituted integrally with the metal block 5; and an oscillator 8 is connected to the piezoelectric body vibrator 6. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、樹脂成型品、ガラス、金属等の固体に発生している傷・ひび割れを検査する超音波傷・ひび割れ検査方法に関するものである。   The present invention relates to an ultrasonic flaw / crack inspection method for inspecting a flaw / crack occurring in a solid such as a resin molded product, glass, metal or the like.

一般に、樹脂成型品、ガラス、金属等の非検査体の表面の傷やひび割れについては、ＣＣＤカメラや顕微鏡又は目視により検査することにより行い、又、非検査体の内部の歪やひび割れについては、破壊検査や探傷検査により良否判定を行っている。   In general, the surface of a non-inspection object such as a resin molded product, glass, or metal is scratched or cracked by inspecting it with a CCD camera, a microscope, or visually, and the distortion or crack inside the non-inspection object is The quality is judged by destructive inspection and flaw detection inspection.

しかしながら、このようなＣＣＤカメラや顕微鏡による検査では、複雑な作業を必要とし、又、目視による検査では、小さな傷やひび割れ等は検出できないという問題があり、さらに、破壊検査や探傷検査も又複雑な作業をしなければならないという問題がある。   However, such inspection with a CCD camera or microscope requires complicated work, and there is a problem that visual inspection cannot detect small scratches or cracks, and destructive inspection and flaw detection inspection are also complicated. There is a problem that it is necessary to carry out a difficult work.

解決しようとする問題点は、非検査体の表面の傷やひび割れは、検査に手間がかかり、又、非検査体の内部の傷やひび割れの検査も作業に手間がかかるという点である。   The problem to be solved is that the inspection and inspection of the scratches and cracks on the surface of the non-inspection object require labor and the inspection of the internal scratches and cracks in the non-inspection object.

本発明では、非検査体を支持部材で支持し、この支持部材に超音波振動子のホーンを固着し、枠体に支持された非検査体の表面に粉体を薄く散布し、その状態で、超音波振動子に発振器より発振出力を印加することにより、非検査体の表面に超音波の定在波による粉体の模様が発生するが、この模様以外の模様により非検査体の内部の傷及びひび割れを検出するものである。   In the present invention, the non-inspection body is supported by the support member, the horn of the ultrasonic vibrator is fixed to the support member, and the powder is thinly dispersed on the surface of the non-inspection body supported by the frame body. By applying oscillating output from the oscillator to the ultrasonic vibrator, a powder pattern is generated on the surface of the non-inspected object due to the standing wave of the ultrasonic wave. It detects scratches and cracks.

本発明の超音波傷・ひび割れの検査方法では、高度なシステムを使用することなく、簡単な検査ができ、この検査の作業も簡単であるという利点がある。
超音波振動子のホーンを固着した支持部材に非検査体をセットして、粉体を散布するという簡単な作業により、超音波振動子からの超音波の定在波により、非検査体の表面に模様が表れるので、この定在波による模様以外の模様によって、非検査体の傷・ひび割れを検出するという簡単な The ultrasonic flaw / crack inspection method of the present invention has an advantage that a simple inspection can be performed without using an advanced system, and the inspection work is also simple.
The surface of the non-inspection body is set by a simple operation of setting the non-inspection body on the support member to which the horn of the ultrasonic vibrator is fixed and dispersing the powder, and standing by the ultrasonic wave from the ultrasonic vibrator. Since the pattern appears on the surface, it is easy to detect scratches and cracks on the non-inspected object with patterns other than those caused by this standing wave.

図１は本発明の方法を実施する構成図で、非検査体１は支持部材２で支持され、この支持部材２にランジュバン型の超音波振動子３のホーン４が固着され、又、この超音波振動子３は金属ブロック５、６で圧電体振動子７が挟持され、金属ブロック５にホーン４が一体に構成され、又、圧電体振動子６に発振器８が接続されている。   FIG. 1 is a configuration diagram for carrying out the method of the present invention. A non-inspection body 1 is supported by a support member 2, and a horn 4 of a Langevin type ultrasonic transducer 3 is fixed to the support member 2. In the acoustic wave vibrator 3, a piezoelectric vibrator 7 is sandwiched between metal blocks 5 and 6, a horn 4 is integrally formed with the metal block 5, and an oscillator 8 is connected to the piezoelectric vibrator 6.

このように構成された本実施例では、支持部材２で支持された非検査体１の表面に粉体を散布して、発振器８から発振出力を印加すると、図２に示すように、非検査体１の表面に超音波の定在波による模様９が発生し、この定在波による模様９は傷やひび割れが無く、又、周波数を変えない限り、同じような模様になるが、傷やひび割れがある場合は、図３に示すように、定在波の模様９の間に傷やひび割れによる模様１０が表れるので、この模様１０を目視することによって、傷やひび割れを検査することができる。   In this embodiment configured as described above, when powder is applied to the surface of the non-inspection body 1 supported by the support member 2 and an oscillation output is applied from the oscillator 8, as shown in FIG. A pattern 9 due to the standing wave of ultrasonic waves is generated on the surface of the body 1, and the pattern 9 due to the standing wave is not scratched or cracked, and the pattern is similar unless the frequency is changed. When there is a crack, as shown in FIG. 3, a pattern 10 due to scratches or cracks appears between the standing wave patterns 9. By visually observing the pattern 10, the scratches and cracks can be inspected. .

図２は本発明の他の方法を実施する構成図で、１は非検査体、２は支持部材、３はランジュバン型の超音波振動子、４はホーンで、これらの構成は上記実施例と同じであるので、説明は省略するが、本実施例では、支持部材２は広い台部材１１の上に装着され、非検査体１の上に散布した粉体が周囲に飛ばないように、台部材１１に透明な遮蔽部材１２が装着され、又、ランジュバン型の超音波振動子３のホーン４は台部材１１に固着され、又、超音波振動子３はケース１３の底部に固着され、ケース１３内に発振器８等が装着されている。   FIG. 2 is a configuration diagram for carrying out another method of the present invention, wherein 1 is a non-inspection object, 2 is a support member, 3 is a Langevin type ultrasonic transducer, 4 is a horn, and these configurations are the same as in the above embodiment. In this embodiment, the support member 2 is mounted on the wide base member 11, and the base is arranged so that the powder spread on the non-inspection body 1 does not fly around. A transparent shielding member 12 is mounted on the member 11, the horn 4 of the Langevin type ultrasonic transducer 3 is fixed to the base member 11, and the ultrasonic transducer 3 is fixed to the bottom portion of the case 13. 13 is equipped with an oscillator 8 or the like.

このように構成した本実施例でも、超音波振動子３のホーン４を固着した台部材１１の透明な遮蔽部材１２の内側の支持部材２で非検査体１が支持され、非検査体１に粉体を散布するという簡単な作業により、超音波振動子３からの超音波の定在波で、非検査体１の表面に模様９が表れるので、この定在波による模様９以外の模様１０を目視することによって、簡単に非検査体の傷・ひび割れを検出することができる。   Also in this embodiment configured as described above, the non-inspection body 1 is supported by the support member 2 inside the transparent shielding member 12 of the base member 11 to which the horn 4 of the ultrasonic transducer 3 is fixed. The pattern 9 appears on the surface of the non-inspection object 1 by the standing wave of the ultrasonic wave from the ultrasonic vibrator 3 by a simple operation of spraying the powder. Therefore, the pattern 10 other than the pattern 9 by the standing wave is displayed. By visual inspection, it is possible to easily detect scratches or cracks in the non-inspection object.

上記実施例では、ランジュバン型振動子とを使用した例を示したが、ランジュバン型振動子以外の圧電体振動子を使用することができるし、又、台部材１１に透明な遮蔽部材１２を装着したが、遮蔽部材１２は透明でなくても良い。   In the above embodiment, an example in which a Langevin type vibrator is used has been described. However, a piezoelectric vibrator other than the Langevin type vibrator can be used, and a transparent shielding member 12 is attached to the base member 11. However, the shielding member 12 may not be transparent.

本発明の実施例の振動子の超音波傷・ひび割れ検査方法の構成図である。It is a block diagram of the ultrasonic flaw / crack inspection method for the vibrator according to the embodiment of the present invention. 図１の検査方法によって非検査体の表面に表れた模様を示した図である。It is the figure which showed the pattern which appeared on the surface of the non-inspection object by the inspection method of FIG. 図１の検査方法によって非検査体の表面に表れた模様に傷・ひび割れがある例を示した図である。It is the figure which showed the example with a crack and a crack in the pattern which appeared on the surface of the non-inspection object by the inspection method of FIG. 本発明の他の実施例の振動子の超音波傷・ひび割れ検査方法の構成図である。It is a block diagram of the ultrasonic flaw / crack inspection method for a vibrator according to another embodiment of the present invention.

符号の説明Explanation of symbols

１ 非検査体
２ 支持部材
３ 超音波振動子
４ ホーン
５、６ 金属ブロック
７ 圧電体振動子
８ 発振器
９、１０ 模様
１１ 台部材
１２ 透明な遮蔽部材
１３ ケース DESCRIPTION OF SYMBOLS 1 Non-inspection body 2 Support member 3 Ultrasonic vibrator 4 Horn 5, 6 Metal block 7 Piezoelectric vibrator 8 Oscillator 9, 10 Pattern 11 Base member 12 Transparent shielding member 13 Case

Claims (2)

非検査体を支持部材で支持し、該支持部材に超音波振動子のホーンを固着し、前記非検査体の表面に粉体を薄く散布し、前記超音波振動子に発振器より発振出力を印加して、前記非検査体の表面に前記超音波の定在波による前記粉体の模様の以外の模様により前記非検査体の内部の傷及びひび割れを検出することを特徴とする超音波傷・ひび割れ検査方法。   A non-inspection body is supported by a support member, a horn of an ultrasonic vibrator is fixed to the support member, a powder is thinly dispersed on the surface of the non-inspection body, and an oscillation output is applied to the ultrasonic vibrator from an oscillator. Then, the surface of the non-inspection body detects a scratch and a crack inside the non-inspection body by a pattern other than the pattern of the powder due to the standing wave of the ultrasonic wave. Crack inspection method. 前記超音波振動子を固定し、前記超音波振動子のホーンを前記非検査体を支持する支持台に固着することを特徴とする超音波傷・ひび割れ検査方法。   An ultrasonic flaw / crack inspection method, wherein the ultrasonic vibrator is fixed, and a horn of the ultrasonic vibrator is fixed to a support base that supports the non-inspection object.
JP2004224266A 2004-07-30 2004-07-30 Ultrasonic flaw/crack inspection method Pending JP2006046949A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2004224266A JP2006046949A (en) 2004-07-30 2004-07-30 Ultrasonic flaw/crack inspection method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2004224266A JP2006046949A (en) 2004-07-30 2004-07-30 Ultrasonic flaw/crack inspection method

Publications (1)

Publication Number Publication Date
JP2006046949A true JP2006046949A (en) 2006-02-16

Family

ID=36025680

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2004224266A Pending JP2006046949A (en) 2004-07-30 2004-07-30 Ultrasonic flaw/crack inspection method

Country Status (1)

Country Link
JP (1) JP2006046949A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008088061A1 (en) * 2007-01-18 2008-07-24 Canon Kabushiki Kaisha Recording apparatus, recording method, program and storage medium

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008088061A1 (en) * 2007-01-18 2008-07-24 Canon Kabushiki Kaisha Recording apparatus, recording method, program and storage medium
CN101584209B (en) * 2007-01-18 2013-04-24 佳能株式会社 Recording apparatus and recording method

Similar Documents

Publication Publication Date Title
SE0403189D0 (en) Methods and apparatus for detecting cracks in welds
JP2006046949A (en) Ultrasonic flaw/crack inspection method
Jhang et al. Wavelet analysis based deconvolution to improve the resolution of scanning acoustic microscope images for the inspection of thin die layer in semiconductor
JP2004069301A (en) Acoustic inspection method and acoustic inspection device
KR101877769B1 (en) Apparatus for hybrid multi-frequency ultrasound phased array imaging
JP2007327914A (en) Ultrasonic inspection method
Schmarje et al. 1–3 Connectivity lithium niobate composites for high temperature operation
JP2012107918A (en) Crack detection device and crack detection method
SE0301801D0 (en) Non-destructive material testing
JP2018163070A (en) Method of inspecting sprayed coating
JP2005315743A (en) Nondestructive defect detector for sheet
Kanakambaran et al. Dual-mode second-harmonic (DMSH) generation on an elastic plate medium
JP2005351723A (en) Ultrasonic flaw detector
Delrue et al. Simulations of nonlinear air-coupled emission (NACE)
Sugimoto et al. Detection and visualization of internal defects in shotcrete specimens using SSE analysis considering local noise for noncontact acoustic inspection
JPH0487675A (en) Ultrasonic wave washing device and holding jig of material to be washed
Sato et al. 3E1-5 Imaging of laser excited surface acoustic wave for in-process evaluation of 3D additive manufacturing (AM) process
JPS6313339A (en) Foreign material existence inspecting device
TWM350015U (en) Device for inspecting defect of photovoltaic element
JP6777301B2 (en) Inspection equipment and inspection method
JP4404355B2 (en) Probe for ultrasonic imaging equipment
JPS5895256A (en) Crack testing device for piezo-electric ceramics
Sugimoto et al. 1P2-10 Application of spatial spectral entropy on composite materials for noncontact acoustic inspection
JP2004077341A (en) Ultrasound image inspection method and apparatus
JP2010260016A (en) Ultrasonic cleaning device