Patent ID: 7523671

Claim:
A system for measuring stress comprising: a coilless sensor including at least one band of electrically conductive and magnetostrictive material, said band having a first end and a second end defining a gap therebetween; a measuring circuit electrically connected to said first and said second ends of said coilless sensor, said measuring circuit being configured to pass a current through said coilless sensor and measure at least one of an inductance, a resistance and an impedance of said coilless sensor in response to said current; a processor in electrical communication with said measuring circuit, said processor being configured to calculate an amount of stress being applied to said coilless sensor based upon said measured inductance, resistance and impedance; and an electric brake caliper assembly a caliper and a caliper housing, wherein said coilless sensor is positioned between said caliper and said caliper housing to measure a force being exerted by said caliper.