专利内容由知识产权出版社提供
专利名称：Integrated magnetic transducer发明人：Michel Helle,Jacques Desserre申请号：US06/273617申请日：19810615公开号：US04422118A公开日：19831220
摘要：A magnetic transducer for reading magnetic information from a magneticsupport such as a disc or tape which moves before it, comprises a magnetic circuit formedof two thin layer polar pieces having a gap at one end and means coupled magneticallyto the circuit for transformation of magnetic flux loss of information into an electricsignal. The pole pieces comprise at the level of the gap a central part bounded by twolateral parts spaced such that the magnetic coupling between the central parts is verymuch less than the magnetic coupling between the corresponding lateral parts of thepieces. The gap disposed between the central parts is larger than the gap of the lateralparts. There is a substantial reduction in Barkhausen noise and parasitic edge effects overconventional transducer constructions which is obtained by making the thickness of thepole pieces of the transducer substantially greater in the area of the geometric path Lpmthan at the lateral portions beyond Lpm.
申请人：COMPAGNIE INTERNATIONALE POUR L'INFORMATIQUE
代理机构：Kerkam, Stowell, Kondracki &
更多信息请下载全文后查看
