- #1
daskywalker
- 11
- 0
Homework Statement
A piezo-electric precision actuator is required that produces a displacement (length change) parallel to the crystal z axis of 1.0nm/V. If a commercial type 5H PZT material is available with d33 = 650. pC/N, what length (along the z axis) is needed for the crystal?
Homework Equations
ε_ij=d_kij*E_k
The Attempt at a Solution
I set the length of the crystal as x and try to solve for it. But since I do not know how much voltage is applied at the piezoelectric device my x's just cancel leaving me with 2 numbers that are supposed to be equal but are obviously not.