Chapter 1


Takashi Yamaguchi

Ricoh Company Ltd.

1.1  Concept of High-Speed Precision Motion Control

1.2  Hard Disk Drives (HDDs)


1.1  Concept of High-Speed Precision Motion Control

First of all, it is important to define the title of this book “High-Speed Precision Motion Control.” For accurate servo-positioning of mechanical actuators in realistic engineering systems, high quality motion is required to achieve both high speed and high precision positioning. As such, the typical four control systems design phases are:

1.  design of reference trajectory;

2.  design of controller to track the reference trajectory;

3.  design of transient or settling controller to minimize the tracking error caused by various unmodeled dynamics ...

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