发明名称 Multi-axial antenna and method for use in downhole tools
摘要 <p>Multi-axial antenna system comprising three co-located coils (104, 106, 108) wound around a torroidal-shaped bobbin (102). Each coil generates a magnetic field in a mutually orthogonal direction. The coils are received in respective sets of grooves in the bobbin.</p>
申请公布号 EP2824760(A1) 申请公布日期 2015.01.14
申请号 EP20140181867 申请日期 2006.09.15
申请人 HALLIBURTON ENERGY SERVICES, INC. 发明人 KNIZHNIK, SERGEY
分类号 H01Q1/04;G01V3/28;H01Q3/26;H01Q7/00;H01Q25/00 主分类号 H01Q1/04
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