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ULTRASONIC MEASUREMENT WAVEGUIDE ROD AND ULTRASONIC MEASUREMENT INSTRUMENT meetings

Foreign code F110002731
File No. S2008-0102-C0
Posted date Apr 11, 2011
Country WIPO
International application number 2008JP070348
International publication number WO 2009/063812
Date of international filing Nov 7, 2008
Date of international publication May 22, 2009
Priority data
  • P2007-297307 (Nov 15, 2007) JP
Title ULTRASONIC MEASUREMENT WAVEGUIDE ROD AND ULTRASONIC MEASUREMENT INSTRUMENT meetings
Abstract [PROBLEMS] To provide an ultrasonic measurement waveguide rod easily manufacturable and hardly producing a noise echo. [MEANS FOR SOLVING PROBLEMS] An ultrasonic flaw detection waveguide rod (2) has a probe at one axial end thereof and a contact surface to be brought into contact with a test piece at the other end. The shape of a cross section of the rod (2) perpendicular to the axis is a polygon having sides any one (41A) of which is not parallel to all the other sides (41B, 41C, 41D). Since at least one pair of sides (41A, 41C) opposed to each other are not parallel to each other, it is prevented that an ultrasonic wave (P) is reflected by the outer surfaces having the nonparallel sides (41A, 41C) and returned as a noise echo to the probe (3). For example, the ultrasonic wave component reflected perpendicularly by one outer surface is reflected by the other outer surface and travels toward the outer surface having the side (41D). Therefore, an echo or a noise, hardly returns to the probe.
Scope of claims (In Japanese)
【請求項1】軸方向の一端部に送受信子が配置され、軸方向の他端部には、試験体に接触する接触面が形成されている超音波計測導波棒において、前記軸方向と直交する断面形状は、該断面形状のいずれか一辺と他の全ての辺とが平行でない多角形であることを特徴とする超音波計測導波棒。

【請求項2】前記断面形状が四角以上の多角形であることを特徴とする請求項1記載の超音波計測導波棒。

【請求項3】前記断面形状が奇数の多角形であることを特徴とする請求項1又は2記載の超音波計測導波棒。

【請求項4】前記断面形状の全ての辺同士が平行でないことを特徴とする請求項2又は3記載の超音波計測導波棒。

【請求項5】前記断面形状が非対称であることを特徴とする請求項2~4のいずれか1項に記載の超音波計測導波棒。

【請求項6】前記断面形状が五角形であることを特徴とする請求項4又は5記載の超音波計測導波棒。

【請求項7】前記断面形状が正五角形であることを特徴とする請求項6記載の超音波計測導波棒。

【請求項8】前記断面形状が九角以下の多角形であることを特徴とする請求項2~5のいずれか1項に記載の超音波計測導波棒。

【請求項9】前記軸方向の一部において前記断面形状が同一であることを特徴とする請求項1~3のいずれか1項に記載の超音波計測導波棒。

【請求項10】前記軸方向全長に渡って前記断面形状が同一であることを特徴とする請求項1~3のいずれか1項に記載の超音波計測導波棒。

【請求項11】前記軸方向の一部又は全長において前記断面形状が相似形をなし、前記導波棒がテーパー状をなすことを特徴とする請求項1~3のいずれか1項に記載の超音波計測導波棒。

【請求項12】請求項9~11のいずれか1項に記載の超音波導波棒と、送受信子とを備えることを特徴とする超音波計測装置。
  • Applicant
  • ※All designated countries except for US in the data before July 2012
  • Nagaoka University of Technology
  • Inventor
  • IHARA, Ikuo
  • KAWASAKI, Tomonori
IPC(International Patent Classification)
Specified countries AE(UTILITY MODEL),AG,AL(UTILITY MODEL),AM(PROVISIONAL PATENT)(UTILITY MODEL),AO(UTILITY MODEL),AT(UTILITY MODEL),AU,AZ(UTILITY MODEL),BA,BB,BG(UTILITY MODEL),BH(UTILITY MODEL),BR(UTILITY MODEL),BW(UTILITY MODEL),BY(UTILITY MODEL),BZ(UTILITY MODEL),CA,CH,CN(UTILITY MODEL),CO(UTILITY MODEL),CR(UTILITY MODEL),CU(INVENTOR'S CERTIFICATE),CZ(UTILITY MODEL),DE(UTILITY MODEL),DK(UTILITY MODEL),DM(UTILITY MODEL),DO(UTILITY MODEL),DZ,EC(UTILITY MODEL),EE(UTILITY MODEL),EG(UTILITY MODEL),ES(UTILITY MODEL),FI(UTILITY MODEL),GB,GD,GE(UTILITY MODEL),GH(UTILITY CERTIFICATE),GM,GT(UTILITY MODEL),HN,HR(CONSENSUAL PATENT),HU(UTILITY MODEL),ID,IL,IN,IS,JP(UTILITY MODEL),KE(UTILITY MODEL),KG(UTILITY MODEL),KM,KN,KP(INVENTOR'S CERTIFICATE)(UTILITY MODEL),KR(UTILITY MODEL),KZ(PROVISIONAL PATENT)(UTILITY MODEL),LA,LC,LK,LR,LS(UTILITY MODEL),LT,LU,LY,MA,MD(UTILITY MODEL),ME(PETTY PATENT),MG,MK,MN,MW,MX(UTILITY MODEL),MY(UTILITY-INNOVATION),MZ(UTILITY MODEL),NA,NG,NI(UTILITY MODEL),NO,NZ,OM(UTILITY MODEL),PG,PH(UTILITY MODEL),PL(UTILITY MODEL),PT(UTILITY MODEL),RO,RS(PETTY PATENT),RU(UTILITY MODEL),SC,SD,SE,SG,SK(UTILITY MODEL),SL(UTILITY MODEL),SM,ST,SV(UTILITY MODEL),SY,TJ(UTILITY MODEL),TM(PROVISIONAL PATENT),TN,TR(UTILITY MODEL),TT(UTILITY CERTIFICATE),TZ,UA(UTILITY MODEL),UG(UTILITY CERTIFICATE),US,UZ(UTILITY MODEL),VC(UTILITY CERTIFICATE),VN(PATENT FOR UTILITY SOLUTION),ZA,ZM,ZW,EP(AT,BE,BG,CH,CY,CZ,DE,DK,EE,ES,FI,FR,GB,GR,HR,HU,IE,IS,IT,LT,LU,LV,MC,MT,NL,NO,PL,PT,RO,SE,SI,SK,TR),OA(BF(UTILITY MODEL),BJ(UTILITY MODEL),CF(UTILITY MODEL),CG(UTILITY MODEL),CI(UTILITY MODEL),CM(UTILITY MODEL),GA(UTILITY MODEL),GN(UTILITY MODEL),GQ(UTILITY MODEL),GW(UTILITY MODEL),ML(UTILITY MODEL),MR(UTILITY MODEL),NE(UTILITY MODEL),SN(UTILITY MODEL),TD(UTILITY MODEL),TG(UTILITY MODEL)),AP(BW(UTILITY MODEL),GH(UTILITY MODEL),GM(UTILITY MODEL),KE(UTILITY MODEL),LS(UTILITY MODEL),MW(UTILITY MODEL),MZ(UTILITY MODEL),NA(UTILITY MODEL),SD(UTILITY MODEL),SL(UTILITY MODEL),SZ(UTILITY MODEL),TZ(UTILITY MODEL),UG(UTILITY MODEL),ZM(UTILITY MODEL),ZW(UTILITY MODEL)),EA(AM,AZ,BY,KG,KZ,MD,RU,TJ,TM)

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