Question

An ultrasonic cleaner uses a piezoelectric resonator that vibrates at a frequency of 22 kHz when it in it's first fundamental frequency (n=1) under an applied electric field of 948 mV/m. The width of the resonator perpendicular to the field is 2.75 mm. Assume the density of the material is 2.84 g/cm3. What is the elastic modulus of the piezoelectric material in MPa?

Answer 1