[미국특허]
Method and apparatus generating and detecting torsional waves for long range inspection of pipes and tubes
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
G01N-027/82
G01N-029/04
G01N-009/24
G01R-033/12
출원번호
US-0815017
(2001-07-17)
발명자
/ 주소
Kwun, Hegeon
Kim, Sang-Young
Crouch, Alfred E.
출원인 / 주소
Southwest Research Institute
대리인 / 주소
Gunn, Lee & Hanor, P.C.
인용정보
피인용 횟수 :
29인용 특허 :
2
초록▼
A method and apparatus is shown for implementing magnetostrictive sensor techniques for the nondestructive evaluation of ferromagnetic pipes or tubes. A magnetostrictive sensor generates shear waves and/or torsional waves in ferromagnetic pipes or tubes, which waves travel therethrough in a directio
A method and apparatus is shown for implementing magnetostrictive sensor techniques for the nondestructive evaluation of ferromagnetic pipes or tubes. A magnetostrictive sensor generates shear waves and/or torsional waves in ferromagnetic pipes or tubes, which waves travel therethrough in a direction parallel to the longitudinal axis of the pipe. A circumferential magnetization is generated in the ferromagnetic pipe or tube by a DC or low frequency voltage establishing a current along the longitudinal axis and past the magnetostrictive sensor. Reflected shear or torsional waves may represent defects in the pipe or tube.
대표청구항▼
A method and apparatus is shown for implementing magnetostrictive sensor techniques for the nondestructive evaluation of ferromagnetic pipes or tubes. A magnetostrictive sensor generates shear waves and/or torsional waves in ferromagnetic pipes or tubes, which waves travel therethrough in a directio
A method and apparatus is shown for implementing magnetostrictive sensor techniques for the nondestructive evaluation of ferromagnetic pipes or tubes. A magnetostrictive sensor generates shear waves and/or torsional waves in ferromagnetic pipes or tubes, which waves travel therethrough in a direction parallel to the longitudinal axis of the pipe. A circumferential magnetization is generated in the ferromagnetic pipe or tube by a DC or low frequency voltage establishing a current along the longitudinal axis and past the magnetostrictive sensor. Reflected shear or torsional waves may represent defects in the pipe or tube. , JP; 2001-217206, JP; 2001-220287, JP; 2001-220294, JP; 2001-240972, JP; 2001-254181, JP; 2001-284042, JP; 2001-303251, JP; 2001-328900, JP; WO90/002216, WO; WO91/010510, WO; WO93/000211, WO; WO96/017107, WO; WO96/018756, WO; WO98/006889, WO; WO99/013504, WO; WO99/029924, WO; WO99/041423, WO; 00/11721, WO; WO 00/11721, WO; 00/15865, WO; 00/15881, WO; 00/16377, WO; 00/54320, WO; 00/63957, WO; 00/79019, WO; 00/79576, WO; WO 01/15220, WO; 01/15220, WO; 01-15220, WO; 01/27346, WO; 01/29280, WO; 01/29891, WO; 01/29893, WO; 01/27347 1, WO; 01/36702, WO; 01/40541, WO; 01/66832, WO
Fleury, Jr., Leo W.; Dintakurti, Ganapathi Deva Varma; Richarz, Werner Guenther; Williams, James O.; Yusuf, Shabbir; Hiller, Timothy Scott Edward; Mercer, Steven James; Janhunen, Stefan Erik, Fire hydrant leak detector.
Anderson, Mark Wilson; Den Boer, Johannis Josephus; Cole, Anthony Thomas; Dimitriadis, Klisthenis; Vollebregt, Jan Erik; Zijsling, Djurre Hans, Forge welding tubulars.
Owens, Steven E.; Borigo, Cody J.; Zhang, Li; Rose, Joseph L.; Love, Russell G., Long-range magnetostrictive ultrasonic guided wave scanner system and method.
Cho, Seung Hyun; Sun, Kyung Ho; Lee, Ju Seung; Kim, Yoon Young, Magnetorestrictive transducer for generating and measuring elastic waves, and apparatus for structural diagnosis using the same.
Kwun, Hegeon; Parvin, Jr., Albert J.; Laiche, Erika Christine, Magnetostrictive sensor probe for guided-wave inspection and monitoring of wire ropes/cables and anchor rods.
Kwun, Hegeon; Kim, Sang-Young; Crane, James F.; Choi, Myoung-Seon, Method and apparatus generating and detecting torsional wave inspection of pipes or tubes.
Kim, Yoon Young; Cho, Seung Hyun; Kim, Ik Kyu; Park, Chan Il, Method of generating and measuring torsional waves in cylindrical structure using magnetostrictive effect, and magnetostrictive transducer and structure diagnosis apparatus using the method.
Ryu, Kwon Sang; Park, Soo Young; Lee, Yun-Hee; Nahm, Seung Hoon; Baek, Un Bong, Non-destructive inspection device for pressure containers using leakage-flux measurement.
Balasubramaniam, Krishnan; Mishra, Tarun Kumar, Segmented strip design for a magnetostriction sensor (MsS) using amorphous material for long range inspection of defects and bends in pipes at high temperatures.
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