专利内容由知识产权出版社提供
专利名称：EDDY CURRENT INSPECTION TECHNIQUE发明人：VAN ANDEL, Petrus, Willem,LORENZ,
Maarten,MEYER, Ricky, Eduardo,Ricardo,LOOIJER, Mark, Theodoor
申请号：EP97934475.1申请日：19970711公开号：EP0910784B1公开日：20020522
摘要：Device (9) for inspecting an object (2) of electrically conductive material,comprising a non-static-signal transmitter for generating an electromagnetic field in theobject (2), and a receiver (20, 21) for measuring the variations of the eddy currentgenerated by the non-static electromagnetic field and for producing a signal
representing the decay of the eddy current, wherein the non-static-signal transmittercomprises at least two laterally spaced-apart emitters (11, 12) for emitting an
electromagnetic field, which emitters (11, 12) are, during normal operation, so driven thatthe resulting electromagnetic field in the central region (26), between the emitters (11,12), is intensified.
申请人：SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V.
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