High displacement piezoelectric actuators: characterization at high load with controlled end conditions

@article{Mulling2000HighDP,
  title={High displacement piezoelectric actuators: characterization at high load with controlled end conditions},
  author={James F. Mulling and Timothy Dwight Usher and Brian Dessent and Jeremy C Palmer and Paul D. Franzon and Edward Grant and A. I. Kingon},
  journal={ISAF 2000. Proceedings of the 2000 12th IEEE International Symposium on Applications of Ferroelectrics (IEEE Cat. No.00CH37076)},
  year={2000},
  volume={2},
  pages={745-748 vol. 2}
}
Piezoelectric ceramic transducers are characterized by relatively small strains on the order of 0.1%. Methods of achieving larger displacements include mechanical amplifiers and flexural mode actuators, such as unimorphs or bimorphs. A particular type of stressed unimorph flexural actuator, the "THUNDER" actuator, provides enhanced flexural strain. (THUNDER/sup TM/ is a trademark of FACE International Corporation). However, displacement has generally not been characterized as a function of load… CONTINUE READING