Title :
Design and characterization of magnetostrictive linear displacement sensors
Author :
Affanni, A. ; Guerra, A. ; Dallagiovanna, L. ; Chiorboli, G.
Author_Institution :
Dipt. di Ingegneria dell´´Informazione, Parma Univ., Italy
Abstract :
The design of a low-cost, linear position sensor, based on the transmission of ultrasonic signals in a magnetostrictive delay line is presented. The paper analyzes the sensor principle, parameters to be optimized, conditioning circuits as well as sensor characterization, comparing the results with commercial sensors.
Keywords :
acoustic delay lines; acoustic waveguides; displacement measurement; magnetostrictive devices; position measurement; ultrasonic transmission; acoustic wave guides; conditioning circuits; linear position sensor; magnetostrictive delay line; magnetostrictive linear displacement sensors; sensor characterization; time of flight; ultrasonic signals; Amorphous magnetic materials; Delay lines; Electromechanical sensors; Magnetic domains; Magnetic materials; Magnetic sensors; Magnetostriction; Magnets; Saturation magnetization; Sensor phenomena and characterization;
Conference_Titel :
Instrumentation and Measurement Technology Conference, 2004. IMTC 04. Proceedings of the 21st IEEE
Print_ISBN :
0-7803-8248-X
DOI :
10.1109/IMTC.2004.1351029
