Title :
Magnetic field sensing by a piezoelectric/magnetostrictive resonator
Author :
Yoshizawa, Nobuyuki ; Shimada, Yutaka
Author_Institution :
Salesian Polytech, Tokyo, Japan
Abstract :
In this paper a magnetic field sensor with FM output was developed. The sensor consists of a piezoelectric resonator and magnetostrictive magnetic layers. It has a great advantage to other sensors since the S/N is not degraded by downsizing. In this study it was verified that its sensitivity is high enough to detect terrestrial magnetic field, suggesting it has a high potential as an electronic compass working in mobile telecommunication devices.
Keywords :
crystal resonators; magnetic fields; magnetic sensors; magnetostrictive devices; FM output; magnetic field sensing; magnetic field sensor; magnetostrictive magnetic layers; magnetostrictive resonator; piezoelectric resonator; sensitivity; terrestrial magnetic field detection; Amorphous magnetic materials; Amorphous materials; Magnetic fields; Magnetic flux; Magnetic resonance; Magnetic sensors; Magnetostriction; Resonant frequency; Saturation magnetization; Voltage;
Conference_Titel :
Magnetics Conference, 2005. INTERMAG Asia 2005. Digests of the IEEE International
Print_ISBN :
0-7803-9009-1
DOI :
10.1109/INTMAG.2005.1463634
