Segmented core for an inductive proximity sensor

Details Segmented core for an inductive proximity sensor Segmented core for an inductive proximity sensor

2007-08-28

2007-08-28

Aurora, Reena (Department: 2862)

Electricity: measuring and testing

Magnetic

Displacement

C324S207150, C324S207160, C324S234000

Reexamination Certificate

active

11190432

ABSTRACT:
An inductive proximity sensor for sensing the presence of target based on a change of inductance in the sensor. The sensor includes a coil and a core formed of a permeable material so as to form an electromagnetic field when the coil is electrically driven. The core has a base, a central post, an outer wall, and at least one slot. The central post extends distally from the base and through the coil and defines a distal end. The outer wall extends distally from the base and around the coil and also defines a distal end. The slot or slots are for enhancing the performance of the sensor by reducing eddy current losses in the core. Each slot extends at least partially along a path defined from the distal end of the outer wall to the base and from the base to the distal end of the central post.

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