NO20053747L - Konfigurasjoner og fremgangsmater for diffraksjonsanalyse basert pa flytid for ultralyd. - Google Patents

Konfigurasjoner og fremgangsmater for diffraksjonsanalyse basert pa flytid for ultralyd.

Info

Publication number
NO20053747L
NO20053747L NO20053747A NO20053747A NO20053747L NO 20053747 L NO20053747 L NO 20053747L NO 20053747 A NO20053747 A NO 20053747A NO 20053747 A NO20053747 A NO 20053747A NO 20053747 L NO20053747 L NO 20053747L
Authority
NO
Norway
Prior art keywords
methods
configurations
tubes
ultrasonic
flight time
Prior art date
Application number
NO20053747A
Other languages
English (en)
Other versions
NO20053747D0 (no
NO341253B1 (no
Inventor
Barry Messer
Matthew Yarmuch
Original Assignee
Fluor Corp
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 Fluor Corp filed Critical Fluor Corp
Publication of NO20053747D0 publication Critical patent/NO20053747D0/no
Publication of NO20053747L publication Critical patent/NO20053747L/no
Publication of NO341253B1 publication Critical patent/NO341253B1/no

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00Investigating 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
    • G01N29/22Details, e.g. general constructional or apparatus details
    • G01N29/221Arrangements for directing or focusing the acoustical waves
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/82Testing the joint
    • B29C65/8292Testing the joint by the use of ultrasonic, sonic or infrasonic waves
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/01General aspects dealing with the joint area or with the area to be joined
    • B29C66/05Particular design of joint configurations
    • B29C66/10Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/114Single butt joints
    • B29C66/1142Single butt to butt joints
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/50General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/52Joining tubular articles, bars or profiled elements
    • B29C66/522Joining tubular articles
    • B29C66/5221Joining tubular articles for forming coaxial connections, i.e. the tubular articles to be joined forming a zero angle relative to each other
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00Investigating 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
    • G01N29/04Analysing solids
    • G01N29/043Analysing solids in the interior, e.g. by shear waves
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00Investigating 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
    • G01N29/04Analysing solids
    • G01N29/06Visualisation of the interior, e.g. acoustic microscopy
    • G01N29/0654Imaging
    • G01N29/069Defect imaging, localisation and sizing using, e.g. time of flight diffraction [TOFD], synthetic aperture focusing technique [SAFT], Amplituden-Laufzeit-Ortskurven [ALOK] technique
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00Investigating 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
    • G01N29/22Details, e.g. general constructional or apparatus details
    • G01N29/24Probes
    • G01N29/2487Directing probes, e.g. angle probes
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00Investigating 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
    • G01N29/34Generating the ultrasonic, sonic or infrasonic waves, e.g. electronic circuits specially adapted therefor
    • G01N29/348Generating the ultrasonic, sonic or infrasonic waves, e.g. electronic circuits specially adapted therefor with frequency characteristics, e.g. single frequency signals, chirp signals
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/34Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/70General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/70General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/739General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/7392General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
    • B29C66/73921General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic characterised by the materials of both parts being thermoplastics
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00Indexing codes associated with group G01N29/00
    • G01N2291/01Indexing codes associated with the measuring variable
    • G01N2291/011Velocity or travel time
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00Indexing codes associated with group G01N29/00
    • G01N2291/04Wave modes and trajectories
    • G01N2291/042Wave modes
    • G01N2291/0423Surface waves, e.g. Rayleigh waves, Love waves
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00Indexing codes associated with group G01N29/00
    • G01N2291/04Wave modes and trajectories
    • G01N2291/042Wave modes
    • G01N2291/0425Parallel to the surface, e.g. creep waves
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00Indexing codes associated with group G01N29/00
    • G01N2291/04Wave modes and trajectories
    • G01N2291/056Angular incidence, angular propagation
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00Indexing codes associated with group G01N29/00
    • G01N2291/26Scanned objects
    • G01N2291/263Surfaces
    • G01N2291/2634Surfaces cylindrical from outside
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00Indexing codes associated with group G01N29/00
    • G01N2291/26Scanned objects
    • G01N2291/267Welds
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00Indexing codes associated with group G01N29/00
    • G01N2291/26Scanned objects
    • G01N2291/267Welds
    • G01N2291/2675Seam, butt welding

Landscapes

  • Physics & Mathematics (AREA)
  • General Health & Medical Sciences (AREA)
  • Biochemistry (AREA)
  • Pathology (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Immunology (AREA)
  • General Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Sampling And Sample Adjustment (AREA)

Abstract

SAMMENDRAG Ultralyd-testapparatur for polymermaterialer (f.eks. plastrør) omfatter et lavtabsorberende hylster som i det minste delvis omslutter en ultralyd-transduser, hvor da denne transduser sender ut en lavfrekvent, bredvinklet ultralydstråle med en smal båndbredde. I mer spesielt foretrukne konfigura-sjoner og fremgangsmåter vil denne apparatur kunne detektere defekter i polymerrør og spesielt da i sveise eller belastede soner av slike rør, hvor defekter mindre enn 4% av veggtykkelsen (opp til 4 tommer) vil kunne detekteres. Videre omtalt er konfigurasjoner og fremgangsmåter for ikke-destruktiv deteksjon av defekter som skriver seg på manglende sammensmelting på polymerrør.
NO20053747A 2003-01-14 2005-08-04 Konfigurasjoner Ultralyd-testapparatur for polymer materialer NO341253B1 (no)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US44016003P 2003-01-14 2003-01-14
PCT/US2003/023369 WO2004065953A1 (en) 2003-01-14 2003-07-24 Configurations and methods for ultrasonic time of flight diffraction analysis

Publications (3)

Publication Number Publication Date
NO20053747D0 NO20053747D0 (no) 2005-08-04
NO20053747L true NO20053747L (no) 2005-10-13
NO341253B1 NO341253B1 (no) 2017-09-25

Family

ID=32771785

Family Applications (1)

Application Number Title Priority Date Filing Date
NO20053747A NO341253B1 (no) 2003-01-14 2005-08-04 Konfigurasjoner Ultralyd-testapparatur for polymer materialer

Country Status (9)

Country Link
US (1) US7255007B2 (no)
EP (1) EP1583959A4 (no)
CN (1) CN100401056C (no)
AU (1) AU2003254189B2 (no)
CA (1) CA2513379C (no)
MX (1) MXPA05007546A (no)
NO (1) NO341253B1 (no)
WO (1) WO2004065953A1 (no)
ZA (1) ZA200505706B (no)

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007004303A1 (ja) * 2005-07-06 2007-01-11 Central Research Institute Of Electric Power Industry 超音波探傷試験における傷高さ測定法並びに装置
US8190225B2 (en) 2006-09-22 2012-05-29 Nellcor Puritan Bennett Llc Medical sensor for reducing signal artifacts and technique for using the same
EP1944604A1 (en) * 2007-01-09 2008-07-16 Total Petrochemicals Research Feluy Process to monitor formation of a polymer having internal strain by acoustic emission analysis
US7938007B2 (en) * 2008-05-08 2011-05-10 Operations Technology Development, Nfp Method for inspecting joined material interfaces
US8104347B2 (en) * 2008-07-16 2012-01-31 Röntgen Technische Dienst B.V. Ultrasonic inspection method and device for plastics walls
MX363340B (es) 2010-06-16 2019-03-20 Mueller Int Llc Dispositivos, sistemas y métodos de monitoreo de infraestructura.
US10175135B2 (en) 2011-08-12 2019-01-08 Mueller International, Llc Leak detector
CN102401804A (zh) * 2011-11-02 2012-04-04 嘉兴市特种设备检测院 聚乙烯管道电熔接头的微波扫描检测方法
CN102914593B (zh) * 2012-10-16 2015-04-22 广东汕头超声电子股份有限公司 轴压装部位的超声tofd检测成像方法
SG11201503041SA (en) 2012-10-26 2015-05-28 Mueller Int Llc Detecting leaks in a fluid distribution system
CN103383375B (zh) * 2012-11-26 2016-09-28 中国商用飞机有限责任公司 一种线性缺陷定量化监测方法
US9116098B2 (en) 2013-02-12 2015-08-25 General Electric Company Ultrasonic detection method and system
US9482645B2 (en) 2013-05-17 2016-11-01 General Electric Company Ultrasonic detection method and ultrasonic analysis method
CN103293225B (zh) * 2013-05-28 2015-01-07 国家电网公司 锅炉水冷壁管氢损伤超声波检测与诊断方法
CN103940906A (zh) * 2014-04-22 2014-07-23 国家电网公司 一种能确定缺陷尺寸及位置参数的tofd检测方法
US9528903B2 (en) 2014-10-01 2016-12-27 Mueller International, Llc Piezoelectric vibration sensor for fluid leak detection
US10305178B2 (en) 2016-02-12 2019-05-28 Mueller International, Llc Nozzle cap multi-band antenna assembly
US10283857B2 (en) 2016-02-12 2019-05-07 Mueller International, Llc Nozzle cap multi-band antenna assembly
US10520476B2 (en) * 2016-07-05 2019-12-31 Loenbro Inspection, LLC Method for inspecting high density polyethylene pipe
CN106768529B (zh) * 2017-01-24 2019-05-31 清华大学 具有预应力的薄壁软材料或软组织材料力学特性分析方法
GB201803062D0 (en) 2018-02-26 2018-04-11 Gb Inspection Systems Ltd Ultrasonic probe
US10859462B2 (en) 2018-09-04 2020-12-08 Mueller International, Llc Hydrant cap leak detector with oriented sensor
US11342656B2 (en) 2018-12-28 2022-05-24 Mueller International, Llc Nozzle cap encapsulated antenna system
US11473993B2 (en) 2019-05-31 2022-10-18 Mueller International, Llc Hydrant nozzle cap
US11542690B2 (en) 2020-05-14 2023-01-03 Mueller International, Llc Hydrant nozzle cap adapter
CN111912910A (zh) * 2020-08-12 2020-11-10 上海核工程研究设计院有限公司 聚乙烯管道热熔焊缝混合超声扫描缺陷智能识别方法
CN115629130B (zh) * 2022-12-21 2023-04-28 国网天津市电力公司电力科学研究院 盆式绝缘子残余应力的成像方法、系统及试块制备方法

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5832559B2 (ja) * 1979-07-04 1983-07-13 株式会社 モリタ製作所 空中超音波パルスの伝送方式並びにこれに用いる超音波送受波具
US4769571A (en) * 1987-08-28 1988-09-06 The Institue Of Paper Chemistry Ultrasonic transducer
CN1085415A (zh) * 1993-06-11 1994-04-20 张建华 手携式体外超声碎石机
EP0709673A1 (fr) * 1994-10-25 1996-05-01 Laboratoires D'electronique Philips Dispositif de contrÔle non destructif d'objets tubulaires creux par ultrasons
JPH08271487A (ja) * 1995-04-10 1996-10-18 Toshiba Tungaloy Co Ltd ポリマー材料の劣化度および寿命の測定センサ、測定装置および判定方法
GB9510032D0 (en) * 1995-05-18 1995-07-12 Atomic Energy Authority Uk Ultrasonic inspection
US5931807A (en) * 1997-04-10 1999-08-03 Sonique Surgical Systems, Inc. Microwave-assisted liposuction apparatus
US6523418B2 (en) * 1998-07-30 2003-02-25 Don E. Bray Apparatus and method for ultrasonic stress measurement using the critically refracted longitudinal (Lcr) ultrasonic technique
CN1128373C (zh) * 2001-01-21 2003-11-19 周熙襄 用初至波对地震勘探资料进行短波长静校正处理的方法

Also Published As

Publication number Publication date
US20060130586A1 (en) 2006-06-22
CA2513379A1 (en) 2004-08-05
EP1583959A1 (en) 2005-10-12
NO20053747D0 (no) 2005-08-04
CN100401056C (zh) 2008-07-09
AU2003254189B2 (en) 2009-05-14
WO2004065953A1 (en) 2004-08-05
NO341253B1 (no) 2017-09-25
CN1759313A (zh) 2006-04-12
ZA200505706B (en) 2006-04-26
US7255007B2 (en) 2007-08-14
EP1583959A4 (en) 2010-07-28
AU2003254189A1 (en) 2004-08-13
MXPA05007546A (es) 2005-09-21
CA2513379C (en) 2009-02-03

Similar Documents

Publication Publication Date Title
NO20053747L (no) Konfigurasjoner og fremgangsmater for diffraksjonsanalyse basert pa flytid for ultralyd.
Fakih et al. Detection and assessment of flaws in friction stir welded joints using ultrasonic guided waves: experimental and finite element analysis
JP5024901B2 (ja) チューブ状システムの非破壊検査方法
US11143631B2 (en) Method for inspecting high density polyethylene pipe
Ryles et al. Comparative study of nonlinear acoustic and Lamb wave techniques for fatigue crack detection in metallic structures
WO2003063233A3 (en) Systems and methods for closed loop defect reduction
MY150282A (en) Ultrasonic gas concentration measuring method and device using the same
WO2003046544A3 (en) Method to characterize material using mathematical propagation models and ultrasonic signal
WO2009011313A1 (ja) 撹拌判定装置、撹拌判定方法及び分析装置
JP2006058291A (ja) 欠陥検査装置及び方法
Ambrozinski et al. Pitch-catch air-coupled ultrasonic technique for detection of barely visible impact damages in composite laminates
Ellwood et al. Determination of the acoustoelastic coefficient for surface acoustic waves using dynamic acoustoelastography: An alternative to static strain
Zagrai et al. Acousto-elastic measurements and baseline-free assessment of bolted joints using guided waves in space structures
EP3062081A1 (en) Leak test apparatus for flexible packaging
JP4329773B2 (ja) フッ素樹脂製被検査物の超音波検査方法
Seo et al. In‐Line Ultrasonic Monitoring for Sediments Stuck on Inner Wall of a Polyvinyl Chloride Pipe
WO2007033334A3 (en) Testing compositions in a corrosive environment
Moon et al. Ultrasound techniques for leak detection
Le Duff et al. Time delay estimation for acoustic source location by means of short-time cross-correlation
Tscheliesnig et al. Detecting corrosion during inspection and maintenance of industrial structures using acoustic emmision
Morison et al. Timber bridge evaluation: a global nondestructive approach using impact generated FRFs
Concu et al. Non-destructive assessment of gluing in cross-laminated timber panels
CN107764897A (zh) 基于空气加速度的非接触式连续移动式无损检测方法
EP4332534A3 (en) Handheld ultrasonic testing device
ATE528640T1 (de) Detektionssysteme und -verfahren für flüssigkeitsgekoppelte defekte

Legal Events

Date Code Title Description
MM1K Lapsed by not paying the annual fees