Control Design for a Piezo-Electric Dual-Stage Instrumented Suspension
نویسنده
چکیده
The servo control design for a piezo-electric dual-stage instrumented suspension to achieve windage vibration reduction for high track density recording is presented in this paper. The servo design exploits the information available from both the sampled position error signal (PES) and a continuous time instrumented suspension signal (ISS) available from an instrumented suspension. The ISS from the instrumented suspension is obtained by using a piezoelectric strip mounted on a dual-stage suspension to measure vibration disturbances of the suspension. Identified models were used to design an optimal fourth order continuous time servo controller to reduce track misregistration due to windage and suspension vibrations. The controller was implemented on a piezo-electric dual-stage suspension for validation purposes.
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