| 摘要 |
An antenna assembly for an induction logging tool for use in a drilling operation, said assembly comprising: an outer pressure housing (3); a coil former (1) within the pressure housing (3); magnetic cores (6) mounted in th e housing (3); a core carrier (4,5) within the coil former (1) and the pressur e housing (3), and which carries the magnetic cores (6); and, shock-absorbing mountings (7) on the core carrier (4,5) for the magnetic cores (6).
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