专利名称：APPARATUS FOR DETECTING DEFECTS,
PARTICULARLY IN CASTINGS
发明人：JACOB, Michel申请号：EP87900175.0申请日：19861226公开号：EP0253829A1公开日：19880127
摘要： A plurality of sensor exciter couples (EA1 M1) and (M2 EA2) are disposed nearthe workpiece (1) to be tested. A circuit (2) for generating, measuring and processing formeasuring the resonant frequencies of various modes and interpreted to derive thedesired characteristics.
申请人：JACOB, Michel
地址：15, rue du Sel F-56700 Hennebont FR
国籍：FR
代理机构：Dubreuil, Annie
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