Patent Number: 8,823,369

Title: Multi directional electromagnetic yoke for inspection of bores

Abstract: A non-destructive inspection system that has particular application for inspecting a bore in a valve for defects. The system includes an inspection yoke having a ferromagnetic core, where a first coil is wound around the core in one direction and a second coil is wound around the core in an orthogonal direction so that orthogonal electromagnetic fields can be generated within the bore. A controller provides a current flow through the coils to generate the electromagnetic fields to detect defects in the bore.

Inventors: Segletes; David S. (York, SC), Lombardo; Erik A. (Sharon, SC)

Assignee: Siemens Energy, Inc.

International Classification: G01N 27/72 (20060101); G01N 27/82 (20060101); G01R 33/12 (20060101)

Expiration Date: 9/02/12018