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Magnetostrictive Composite Stress Sensor. By: Ashraf Al-Hajjeh Advisors: Dr. Chiu Law, Dr. Rani El-Hajjar. Background Information. Villari Effect – the change in the magnetic property of a material when it is placed under an external mechanical stress ( σ ).
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Magnetostrictive Composite Stress Sensor By: Ashraf Al-Hajjeh Advisors: Dr. Chiu Law, Dr. Rani El-Hajjar
Background Information Villari Effect – the change in the magnetic property of a material when it is placed under an external mechanical stress (σ) • Measurement configuration – • Longitudinal: parallel to stress axis. • Transverse: perpendicular to stress axis.
Sensor Response • Our experiments demonstrated a non-contact sensing scheme. • Sensor response depends on various design parameters. • Future work includes studying the effect of these parameters on the sensor’s response.