Calculate the ratio of displacement dz per unit volt. How could elevated teThe problem statement, all variables and given/known data A tube scanner made of a PZT piezoceramic material, which has a piezoelectric coefficient, d31=- 0.27x10 -9 mV -1 , has a length of 12.5 mm and wall thickness of 0.5 mm.mperatures affect the piezoceramic material? The attempt at a solution Using a formula i can show that dz/U = L / h d(31) = 12.5*10^-3 / 0.27*10-12 * 0.5*10^-3 Is that correct for the displacement dz per unit volt, and how does elevated temperatures effect the materiel?