Examples of actuators are servo motor, stepper motor etc. Higher-order resonances in the actuator can limit the bandwidth and track-following performance of the actuator.įEM modeling is used to identify the origin of such resonances and test strategies to minimize their effects. In contrast, the focus of this chapter is on wearable technologies of the post-smartphone area. To minimize such effects, we use finite element modeling (FEM) to optimize the design of the head, cable and actuator assembly. If you have queries, contact us PI has the right solution for you Principle. Increased mass and stiffness of the flex cables may degrade the performance of the track-follow actuator. Compare the features and application ranges of piezo drive technologies. In order to increase the data rate in future tape systems, the number of parallel channels will have to be increased, resulting in larger and stiffer flex cables. the largest servo bandwidth for a piezoelectric transducer (PZT). Digital servo controller from PI for piezo inertia drives with integrated power amplifier and voltage generator, broadband encoder input, fast startup. Electrical connectivity is provided to the head by means of flex cables that route signals to and from the drive electronics for reading and writing data. JILA, National Institute of Standards and Technology and University of Colorado. The controller integrates a low - noise piezo power amplifier, a high - speed servo con- troller, sensor electronics for absolute - measuring capacitive.
#Servo piezo technology drivers#
IBM’s tape drives use voice coil actuators to position the head relative to the tape. Piezo actuators are solid state motion drivers offering ideal properties for high-speed precision motion. Under special electrical excitation drive and ceramic geometry of Nanomotion motors, longitudinal extension and transverse bending oscillation modes are excited at close frequency proximity.
A key component of the track-following system is the track-following actuator. The Piezoelectric effect in piezoceramics converts electrical field to mechanical strain.
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