Journal
JOURNAL OF APPLIED PHYSICS
Volume 106, Issue 11, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.3253739
Keywords
laminates; lead compounds; magnetic sensors; magnetoelectric effects; magnetostrictive devices; niobium compounds; piezoelectric materials; zinc compounds
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Funding
- U.S. Army Research Office [47576MS]
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We report results on a dimensionally gradient magnetoelectric (ME) sensor that demonstrates high performance over a wide frequency range and a magnetic dc bias operating in the longitudinal-transversal mode. The design of the sensor is based on a piezoelectric bimorph structure and utilizes a laminate configuration with Pb(Zn1/3Nb2/3)(0.2)(Zr0.5Ti0.5)(0.8)O-3 and Metglas as material layers. The wide-band behavior was characterized by a flat ME response over a wide range of magnetic dc biases corresponding to 60-215 Oe and frequencies corresponding to 7-22 kHz. By using tip mass, the wide-band frequency response was shifted to a lower frequency range of 5-14 kHz. The results show that the operating frequency range of the sensor can be easily shifted by changing the tip mass at the end of the composite.
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