Piezoelectric Bending Transducer (T220-A4BR-1305XB) Meta||Price||$218 A 2-layer piezoelectric actuator produces

A 2-layer piezoelectric actuator produces curvature when one piezo layer expands while the other layer contracts

It has high motion per volt sensitivity but its upper temperature range is limited and its properties are more sensitive to temperature

the piece expands along the axis of polarization (thickness direction) and contracts perpendicular to the axis of polarization (length and width direction)

The brass shim reinforcement laminated between the two piezoelectric layers is an economical approach to producing a rugged actuator

Motion in the length direction is typically on the order of microns or tens of microns

Piezoelectric Bending Transducer (T220-A4BR-1305XB) Meta||Price||$218 A 2-layer piezoelectric actuator produces1,25 x 0,5 x 0,02 in. PZT 5A, 2 Layer Bender with Standard Mounting