Method for testing an antenna coil
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专利名称：Method for testing an antenna coil
发明人：BALDISCHWEILER, MICHAEL,FINKENZELLER,
KLAUS
申请号：EP12006295.5
申请日：20120906
公开号：EP2581984A2
公开日：
20130417
专利内容由知识产权出版社提供
专利附图：
摘要：The testing method involves contactless testing of the operability of a closed antenna coil (20). The antenna coil is simulated for oscillation. The free damped
oscillation of the antenna coil is detected in response to excitation. The free damped
oscillation of the antenna coil is evaluated. The antenna coil is excited by a pulse inductive magnetic field that is generated by a single current pulse. The direct current pulse is generated as a Dirac-impact or as a current pulse that has steep slope, only. Independent claims are included for the following: (1) a test device for checking the operability of an antenna coil for a contactless communicating portable data carrier; and (2) a bridging device for temporarily bridging the ends of a material on a carrier.
申请人：GIESECKE & DEVRIENT GMBH
地址：Prinzregentenstrasse 159 81677 München DE
国籍：DE
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