238000000926 separation method Methods 0.000 claims abstract description 14.238000004458 analytical method Methods 0.000 claims abstract description 33.239000000523 sample Substances 0.000 claims abstract description 38.239000000463 material Substances 0.000 claims abstract description 43.238000001514 detection method Methods 0.000 title claims abstract description 92.Assignors: ARAKAWA, TAKAHIRO, HATANAKA, HIROAKI, SHIBATA, SABURO Publication of US20030200809A1 publication Critical patent/US20030200809A1/en Application granted granted Critical Publication of US6640632B1 publication Critical patent/US6640632B1/en Anticipated expiration legal-status Critical Status Expired - Lifetime legal-status Critical Current Links ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). reassignment ISHIKAWAJIMA-HARIMA HEAVY INDUSTRIES CO., LTD. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.) Filing date Publication date Priority to JP2000336782A priority Critical patent/JP4552309B2/en Priority to EP02252981A priority patent/EP1357381B1/en Priority to CA002383886A priority patent/CA2383886C/en Application filed by IHI Corp filed Critical IHI Corp Priority to US10/135,307 priority patent/US6640632B1/en Assigned to ISHIKAWAJIMA-HARIMA HEAVY INDUSTRIES CO., LTD. Original Assignee IHI 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 or warranty as to the accuracy of the list.) ( en Inventor Hiroaki Hatanaka Saburo Shibata Takahiro Arakawa Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Expired - Lifetime Application number US10/135,307 Other versions US20030200809A1
Google Patents Ultrasonic flaw detection method and apparatusÄownload PDF Info Publication number US6640632B1 US6640632B1 US10/135,307 US13530702A US6640632B1 US 6640632 B1 US6640632 B1 US 6640632B1 US 13530702 A US13530702 A US 13530702A US 6640632 B1 US6640632 B1 US 6640632B1 Authority US United States Prior art keywords defect echoes flaw detection extracted weld Prior art date Legal status (The legal status is an assumption and is not a legal conclusion. Google Patents US6640632B1 - Ultrasonic flaw detection method and apparatus US6640632B1 - Ultrasonic flaw detection method and apparatus