Flat metallic strip toroidal coil
A downhole device includes a closed ring of ferromagnetic material mounted on a conductive pipe (39) and a first coil (38B) spirally wound around the closed ring comprising an electrically conductive flat metallic strip (66B) to substantially cover the closed ring.
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| Hauptverfasser: | , |
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| Format: | Patent |
| Sprache: | eng ; fre ; ger |
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| Zusammenfassung: | A downhole device includes a closed ring of ferromagnetic material mounted on a conductive pipe (39) and a first coil (38B) spirally wound around the closed ring comprising an electrically conductive flat metallic strip (66B) to substantially cover the closed ring. |
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