Dynamic modeling and feedback control of a piezo - based milli - actuator
نویسنده
چکیده
In magnetic disk drive actuators, the application of piezo electric material can be used to re ne and accomplish track following in (extremely) high track density magnetic data storage. In this paper the results on the modeling and control of a piezobased milli-actuator are presented. The modeling is done on the basis of a least squares curve tting of an estimated frequency response and taking into account uncertainties in the modeled resonance modes of the actuator. The design and implementation of a robust controller provides a high bandwidth and accurate positioning of the tip of the suspension and illustrates the e ciency of the piezo-based milli-actuator.
منابع مشابه
Experimental modeling and feedback control of a piezo-based milliactuator
In magnetic disk drive actuators, requirements to record and read data at higher track densities has made mechanical resonances of the servo actuator, suspension and the head gimbal assembly a critial consideration. The application of piezo electric material in the servo actuator can be used to re ne and accomplish track following in (extremely) high track density magnetic data storage by contr...
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