Ripple and Uniformity Measurement of a Phased-Array Testing-Machine for round-Bar Testing
作者单位：GE Inspection Technologies GmbH
会议名称：《17th World Conference on Non-Destructive Testing》
会议日期：1000年
学科分类：08[工学] 080401[工学-精密仪器及机械] 0804[工学-仪器科学与技术] 081102[工学-检测技术与自动化装置] 0811[工学-控制科学与工程]
关 键 词：Phased-array ROWA Bar testing Ripple & uniformity
摘 要：正Industrial testing of round bar material is commonly carried out directly in the testing line applying automated *** the simple handling possibilities and the excellent resolution,phased-array systems,preferably of type ROWA are applied for these *** to now,many special materials with associated non-standard specifications are still tested offline in immersion tanks or even *** addition to the small reference defects applied,the testing of those materials requires am in depth understanding of the variation of the defect signal along the complete circumference of the test body,generally referred to as Ripple and *** the process point of view,it is of great advantage to transfer the offline test of special machines to the inline testing *** order to do this,a detailed measurement of the testing homogeneity under industrial conditions is one of the key *** this purpose,a method and a measurement system,which allows measuring Ripple and Uniformity,was developed and set into operation.