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The constant current is changed through changing the preload pressure affected on the GMM's stick, and the relation among constant current and Micro-displacement output and preload pressure is researched, then the best optimal preload pressure is analyzed with least-squares method, the coincidence degree of the loading and unloading loop curve for different current is analyzed under the most optimal...
The Micro-feed tool carrier drived by GMM has lots of merits such as large feed force, high displacement resolution, wide displacement range and connected with machine tool rapidly, it surmounts the shortcoming of the PZT driver such as PZT's excursion of the PZT's terrace structure and the intricate PZT's avoiding creepage structure for the PZT working in high voltage situation, when the magnetic...
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