Title :
Multiple signal transmission in wide-range position sensor using magnetoelastic wave in FeSiB amorphous wire
Author :
Takemura, Y. ; Masuda, S. ; Yamada, T. ; Kakuno, K.
Author_Institution :
Yokohama Nat. Univ., Japan
fDate :
11/1/1995 12:00:00 AM
Abstract :
A wide-range position sensor using magnetoelastic waves in FeSiB amorphous wire was fabricated. The output signal, whose period is proportional to the sensing distance, is obtained for the range from 0 to 5.0 m with a resolution of 1 mm. A multiple signal transmission in the wire was also studied. As the propagation of the magnetoelastic wave is not interfered by DC or AC electric current (up to 1.6×107 A/m2, 10 MHz), the signals of the electric current and the magnetoelastic wave are transmitted simultaneously in the wire. This advantage is utilized for several proposed applications, such as multiple signal transmission, the delay line and the power supply line in the position sensor
Keywords :
amorphous magnetic materials; boron alloys; delay lines; ferromagnetic materials; iron alloys; magnetic sensors; magnetoelastic waves; position measurement; silicon alloys; 0 to 5 m; 10 MHz; FeSiB; FeSiB amorphous wire; delay line; electric current signals; low attenuation; magnetoelastic wave; multiple signal transmission; partial annealing; power supply line; wide-range position sensor; Amorphous magnetic materials; Amorphous materials; Annealing; Coils; Current; Magnetic sensors; Magnetoelasticity; Magnetostriction; Sensor phenomena and characterization; Wire;
Journal_Title :
Magnetics, IEEE Transactions on
