Piezoelectric Resonance Sensors of DC Magnetic Field

Author

Fetisov, Yuri K.

Author_Institution

Moscow State Tech. Univ. of Radio Eng., Electron. & Autom., Moscow, Russia

Volume

14

Issue

6

fYear

2014

fDate

Jun-14

Firstpage

1817

Lastpage

1821

Abstract

The operational principle, methods of calculation, and designs of the dc magnetic field sensors using the combination of the Ampere force, the piezoelectricity, and the acoustic resonance have been described. The prototypes of the sensors based on a lead zirconate titanate ring and bimorph structures with radial or bending oscillations excited by the alternative current have been fabricated and investigated. The sensitivity of the sensors reached 245 V/(A·T) and the measured field range was from ~10^-5 T up to several Teslas.

Keywords

acoustic resonance; bending; lead compounds; magnetic field measurement; magnetic sensors; piezoelectric devices; piezoelectric oscillations; piezoelectricity; Ampere force; DC magnetic field sensor; PZT; acoustic resonance; bending oscillations; bimorph structure; lead zirconate titanate ring structure; piezoelectric resonance sensor prototype; piezoelectricity; radial oscillations; Electrodes; Magnetic field measurement; Magnetic fields; Magnetic sensors; Sensitivity; Voltage measurement; Acoustic resonance; Ampere force; magnetic field sensor; piezoelectricity;

fLanguage

English

Journal_Title

Sensors Journal, IEEE

Publisher

ieee

ISSN

1530-437X

Type

jour

DOI

10.1109/JSEN.2014.2301711

Filename

6718012