Position sensor for linear synchronous motors employing halbach arrays

摘要

A position sensor suitable for use in linear synchronous motor (LSM) drive systems employing Halbach arrays to create their magnetic fields is described. The system has several advantages over previously employed ones, especially in its simplicity and its freedom from being affected by weather conditions, accumulated dirt, or electrical interference from the LSM system itself.

主权项

1. An apparatus, comprising:
at least one sensor comprising:
a housing;a load cell fixedly attached to an inner portion of said housing; anda permanent magnet movably positioned within said housing and in contact with said load cell such that movement of said magnet will deform said load cell such that a signal will be produced by said load cell.