公开(公告)号：US08891200B1

公开(公告)日：2014-11-18

申请号：US13925526

申请日：2013-06-24

Applicant: Seagate Technology LLC

Inventor： John C. Purkett ,  David L. Schell ,  Robert A. Alt ,  KarWei Koay

IPC: G11B5/596 ,  G11B21/24 ,  G11B5/48

CPC classification number: G11B5/4873 ,  G11B5/5552

Abstract: Apparatus and method for mitigating impedance changes in a microactuator conductive joint. In accordance with some embodiments, a microactuating element has a conductive input junction, the junction having dissimilar metals in contact with one another. The microactuating element is adapted to mechanically deform to displace a control object responsive to a micractuation control signal that is applied to the junction. A control circuit applies a bi-directional transition signal to the conductive input junction to reduce an increased impedance of the junction.

Abstract translation: 用于减轻微致动器导电接头中的阻抗变化的装置和方法。 根据一些实施例，微致动元件具有导电输入接头，该接合部具有彼此接触的异种金属。 微致动元件适于机械地变形以响应于施加到接合处的微量控制信号来移位控制对象。 控制电路将双向转换信号施加到导电输入接点以减小接合部的增加的阻抗。