Patent ID: 7392713

Claim:
A sensing system for monitoring a property of an electrically conductive moving element of turbomachinery, comprising: a) a sensing system housing; b) a magnetic core contained within said sensing system housing; c) a coil positioned about at least a portion of said core, said coil being electrically connectable to a property data analysis device; and, d) a first magnet and a second magnet oriented symmetrically with respect to the first magnet, each of said magnets being positioned about said coil and being positionable proximate a moving element of turbomachinery to be monitored, wherein a primary magnetic field is generated by said first and second magnets, wherein when said moving element enters said primary magnetic field a current is induced in said moving element, thus generating a time-variable magnetic field and commensurate voltage signal generated in said coil, said voltage signal being amplified by said magnetic core, said voltage signal providing an indication of a property of said moving element.