The main circuits of a magnetic head positioning system with a density of 8 tracks per millimeter (TPM) based on a 4 TPM system are described with the performance of the system analysed and discussed.

本文介绍了一个磁道密度为每毫米八道的磁头定位系统，该系统是将每毫米四道的系统加以改进而得。文中给出了该系统的主要电路，并对系统的性能进行了分析和讨论。

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The split morph can be used as precision positioner, especially as the secondary actuator in dual stage head positioning servo system of high density hard disk drives.

该分割电极压电致动器可用于精密定位，尤其适合在高密度硬磁盘驱动器的磁头定位两级伺服系统中作第二级致动器。

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NOTE: this machine can be equipped with auto-feeding positioning roller table with high accurate digital readout system. So this is the most favorable single head saw for cutting the corner key.

注：根据客户要求可配置自动送料定位装置，带数字显示定位系统，定位精度准确、效率高，是目前角码切割的理想设备。

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