Title: Magnetoelectric laminate composite based tachometer for harsh environment applications
Abstract: This study reports the design, fabrication, and characterization of a tachometer utilizing magnetoelectric (ME) laminate composites with sandwich structure consisting of Pb(Zr,Ti)O3 (PZT) and Galfenol. High temperature characterization of Galfenol shows that it can sustain the magnetic property over 500°C. The Curie temperature of PZT compositions was in the range of 325–340°C. The magnitude of the ME coefficient was found to scale with the dimensionless ratio (d g/S), where d is the piezoelectric strain constant, g is the piezoelectric voltage constant, and S is the elastic compliance. The tachometer design is based on the principle that when ME composite is exposed to oscillating magnetic field, it generates voltage with the same frequency.
Publication Year: 2007
Publication Date: 2007-09-17
Language: en
Type: article
Indexed In: ['crossref']
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Cited By Count: 30
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