Article,

A SIMPLE METHOD TO AMPLIFY MICRO DISPLACEMENT

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International Journal of Instrumentation and Control Systems, 06 (2/3): 01-07 (October 2016)
DOI: 10.5121/ijics.2016.6301

Abstract

A simple method to amplify the micro displacements produced by magnetostrictive effect, giant magnetostrictive, converse piezoelectric and photo strictive effect, respectively, is reported. The device consists mainly of two material rods with different coefficients of strains vs intensity of external fields, which are rigidly jointed, so that the displacements created by different rods can be added directly. In contrast with all other methods reported so far, which are all based on the principle of lever, this approach holds some unique advantages that can be applied to respond to the electromagnetic fields with high frequency because there is no friction caused by the relative motion between levers and furthermore, an ideal and smooth amplification of micro displacement can be obtained with ease in principle.

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