• Eriksson, T. J. R.
• Kang, Lei
• Ramadas, S. N.
• Burrows, S. E.
• Kupnik, M.
• Unger, A.
• Dixon, S. M.

Abstract

<p>A prototype flexural ultrasound transducer capable of operating at high temperatures was designed for noncontact measurement applications. A doped bismuth titanate was used as the piezoelectric element; the construction of the transducer was designed using materials and bonding capable of operating at temperatures up to 500°C. The bismuth titanate was characterised by X-ray diffraction, differential thermal analysis and impedance analysis; the transducer response was measured using laser interferometry at room temperature. The resulting frequency spectrum showed clear resonance peaks, indicative of an operational flexural transducer.</p>

Topics

• x-ray diffraction
• ultrasonic
• differential thermal analysis
• Bismuth
• interferometry