Inductive coil structure

Details Inductive coil structure Inductive coil structure

H - Electricity

01

F

336/50, 73/69

H01F 27/30 (2006.01) G01L 3/10 (2006.01) H01F 27/28 (2006.01)

Patent

CA 1322671

-33- Abstract of the Disclosure INDUCTIVE COIL STRUCTURE An apparatus if provided for use with non-contacting torque sensors. Many non-contacting torque sensors use bulky inductive coil structures to induce magnetic flux into the shaft whose torque is to be measured, and to sense a change in magnetic permeability of the shaft in response to torque applied thereto. These large, cumbersome structures are quite expensive to fabricate, and difficult to manufacture and install. As a solution, a flexible, ribbonlike inductive coil structure is provided. The dual layer construction of this coil structure enables it to provide adequate magnetic flux distribution, similar to that of much larger coil structures. Furthermore, the unique layout of the coils results in an efficient, accurate structure for inducing and sensing magnetic flux.

606536

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