Amorphous wire delay lines used for magnetic field measurements

Author

Chiriac, H. ; Hristoforou, E. ; Neagu, Maria ; Darie, I. ; Ovari, T.A.

Author_Institution

Nat. Inst. of Res. & Dev. for Tech. Phys., Iasi, Romania

Volume

33

Issue

5

fYear

1997

fDate

9/1/1997 12:00:00 AM

Firstpage

4041

Lastpage

4043

Abstract

In this paper we report some results concerning the dependence of the pulsed voltage output on the exciting magnetic field and on the bias magnetic field applied at the exciting or receiving point, for Fe_77.5Si_7.5B₁₅ amorphous wires used as delay lines. The obtained results show a strong dependence of the pulsed voltage output on the values of the magnetic fields. Magnetic fields up to about 2000 A/m applied at the receiving point can be detected. Small magnetic fields applied at the exciting point can be detected using small values of the exciting magnetic field. Using this technique magnetic field sensors with high accuracy and sensitivity and absence of hysteresis can be realized. Such sensors can be formed in integrated arrays measuring the distribution of the magnetic field along the magnetostrictive delay line axis

Keywords

amorphous magnetic materials; delay lines; magnetic field measurement; magnetic sensors; magnetostrictive devices; Fe_77.5Si_7.5B₁₅; amorphous wire delay line; integrated array; magnetic field measurement; magnetostrictive axis; pulsed voltage; sensor; Amorphous materials; Delay lines; Iron; Magnetic field measurement; Magnetic fields; Magnetic hysteresis; Magnetic sensors; Sensor arrays; Voltage; Wire;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.619656

Filename

619656