CeraNova
Corporation
Active Composites for Smart Structures
New: Transparent Ceramics
| Telephone: | 508 460-0300 |
| E-mail: | Info@CeraNova.com |
|
| Telephone: | 508 460-0300 |
| E-mail: | Info@CeraNova.com |
|
Active PZT Fibers, a Commercial Production Process 4. AFC PERFORMANCE High field free (unclamped) strain response is illustrated in Figure 10, showing the strain output as a function of electric field for 1 and 10 Hz, at two different field inputs. A bias voltage drive avoids depolarization of the AFC device while maximizing work output as an actuator. Free strains well above 2000 microstrain (0.2%) are possible, and indicate the potential for high work output by using the 33 mode of actuation in the plane of the actuator. Further improvements in the fiber and composite fabrication are expected to increase these levels. Attempts to correlate this performance measure with fiber characteristics and manufacturing process variables are still in progress.
Figure
10: Actuation hysteresis loop.
Linear displacement versus driving voltage for AFC pack. |
|
