期刊
IEEE SENSORS JOURNAL
卷 21, 期 23, 页码 26868-26877出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/JSEN.2021.3119895
关键词
Magnetostriction; Magnetomechanical effects; Temperature sensors; Sensors; Wires; Magnetic sensors; Temperature measurement; Magnetostriction; high temperature; iron-based wires; position sensor; temperature sensor
资金
- National Natural Science Foundation of China [51777053, 51801053, 52077052]
- State Key Laboratory of Reliability and Intelligence of Electrical Equipment [EERI_OY2020009]
- Natural Science Foundation of Hebei Province [E2019202315]
Three types of magnetostrictive wires with improved magnetostrictive value and high Curie temperature have been successfully prepared for designing ultrasonic sensors. Based on the established signal intensity model, sensors capable of stable operation at high temperatures were designed, providing reliable output signals.
Fe30Co70, Fe82Ga13.5Al4.5, and (Fe83Ga17)(99.4) B-0.6 magnetostrictive wires with improved magnetostrictive value and high Curie temperature have been successfully prepared. These wires can be used in the design of magnetostrictive ultrasonic sensors (MUS) for position and temperature detection over a wide temperature range. The signal intensity model is established under non-adiabatic conditions based on the thermodynamic laws, the magnetoelastic coupling effect, the Boltzmann statistics and the inverse magnetostrictive effect. Position sensor up to 500 degrees C and temperature sensor up to 1200 degrees C were designed with optimal operating parameters according to the model and properties of magnetostrictive wires. The output signals are reliable at intensity and noise level, ready for the stable working of sensors at room and elevated temperature. The two kinds of MUS presented in this work have advantages of high upper limit of working temperature and non-contact, which are suitable for harsh environment applications.
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