Robust, Compact Motion Control with Piezoelectric Bimorphs
The central passive layer, typically made of a metal or polymer, provides mechanical support and prevents electrical shorting between the two active piezo layers. The ceramic layers are poled during manufacturing to align their electric dipole moments in opposite axial directions. When an electric field is applied across the bimorph’s thickness, one layer expands longitudinally while the other contracts, resulting in a net bending displacement perpendicular to the field direction. For more details, piezo bending actuator |
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