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1. WO2006051913 - ULTRASONIC TEST METHOD AND ULTRASONIC TEST INSTRUMENT USED FOR SAME

Publication Number WO/2006/051913
Publication Date 18.05.2006
International Application No. PCT/JP2005/020738
International Filing Date 11.11.2005
IPC
G01N 29/24 2006.1
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
29Investigating 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
22Details
24Probes
CPC
G01N 2291/0231
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
2291Indexing codes associated with group G01N29/00
02Indexing codes associated with the analysed material
023Solids
0231Composite or layered materials
G01N 2291/0427
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
2291Indexing codes associated with group G01N29/00
04Wave modes and trajectories
042Wave modes
0427Flexural waves, plate waves, e.g. Lamb waves, tuning fork, cantilever
G01N 2291/044
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
2291Indexing codes associated with group G01N29/00
04Wave modes and trajectories
044Internal reflections (echoes), e.g. on walls or defects
G01N 2291/056
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
2291Indexing codes associated with group G01N29/00
04Wave modes and trajectories
056Angular incidence, angular propagation
G01N 2291/102
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
2291Indexing codes associated with group G01N29/00
10Number of transducers
102one emitter, one receiver
G01N 2291/2694
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
2291Indexing codes associated with group G01N29/00
26Scanned objects
269Various geometry objects
2694Wings or other aircraft parts
Applicants
  • 独立行政法人宇宙航空研究開発機構 Independent administrative institution Japan Aerospace Exploration Agency [JP]/[JP] (AllExceptUS)
  • 白井 誠 SHIRAI, Makoto [JP]/[JP] (UsOnly)
  • 宮本 宏 MIYAMOTO, Hiroshi [JP]/[JP] (UsOnly)
  • 松原 重行 MATSUBARA, Shigeyuki [JP]/[JP] (UsOnly)
Inventors
  • 白井 誠 SHIRAI, Makoto
  • 宮本 宏 MIYAMOTO, Hiroshi
  • 松原 重行 MATSUBARA, Shigeyuki
Agents
  • 北村 光司 KITAMURA, Koji
Priority Data
2004-33103315.11.2004JP
Publication Language Japanese (ja)
Filing Language Japanese (JA)
Designated States
Title
(EN) ULTRASONIC TEST METHOD AND ULTRASONIC TEST INSTRUMENT USED FOR SAME
(FR) PROCEDE D‘ESSAI PAR ULTRASONS ET INSTRUMENT EMPLOYE POUR LEDIT PROCEDE
(JA) 超音波試験方法及びこれに用いる超音波試験装置
Abstract
(EN) An ultrasonic test method for detecting a defective portion more precisely in a noncontact reflection way, and ultrasonic test instrument used for the method. An ultrasonic wave is transmitted from a transmitter (20 (21)) provided on one side of an object under test, and the reflected wave is received by a receiver (30 (31)) provided on the same side. The ultrasonic wave is transmitted/received through an air layer between the transmitter and the object (100) under test and between the receiver and the object (100). The relative positions of the transmitter (20), the receiver (30), and the object (100) are so determined that the air propagation time ta of the air path (RA) between the transmitter and the receiver is longer than the propagation time tb of the reflected wave in the reflection path (RB). The propagation of the ultrasonic wave through the solid body between the transmitter and the receiver is blocked. This invention is suitable to test laminated material (100) such as a laminate of CFRP (101) and insulation (102) in a noncontact way.
(FR) La présente invention concerne un procédé d’essai par ultrasons destiné à détecter une partie défectueuse, plus précisément par réflexion sans contact, et un instrument de test par ultrasons utilisé pour ledit procédé. Une onde ultrasonore est transmise à partir d’un émetteur (20 (21)) prévu sur un côté d’un objet testé et l’onde réfléchie est reçue par un récepteur (30 (31)) prévu du même côté. L’onde ultrasonore est émise/reçue à travers une couche d’air entre l’émetteur et l’objet (100) testé et entre le récepteur et l’objet (100). Les positions relatives de l’émetteur (20), du récepteur (30) et de l’objet (100) sont déterminées de sorte que le temps de propagation dans l’air ta du trajet dans l'air (RA) entre l’émetteur et le récepteur soit plus long que le temps de propagation tb de l’onde réfléchie dans le trajet de réflexion (RB). La propagation de l’onde ultrasonore à travers le corps solide entre l’émetteur et le récepteur est bloquée. La présente invention est adaptée pour essayer des matières stratifiées (100) telles qu’un lamellé de résine polymère en fibre de carbone (101) et un isolement (102) avec absence de contact.
(JA)  非接触反射法でより明確に欠陥部を検出することの可能な超音波試験方法及びこれに用いる超音波試験装置を提供すること。  試験体の一側に設けた送信子20(21)から超音波を送信すると共に同側の受信子30(31)で反射波を受信する。送信子及び受信子と試験体100との間の気層を介して超音波を送受信する。反射経路RBにおける反射波の伝播時間tbよりも送信子及び受信子間の気中経路RAの気中伝播時間taが長くなるように送信子20、受信子30及び試験体100の相対位置を設定する。さらに、送信子及び受信子間の固体を介した超音波の伝播を遮断する。本発明は、例えばCFRP101とインシュレーション102との貼り合わせのような積層材料100を非接触で試験するのに適している。
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