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Two-degree-of-freedom precision micro-positioning system and method driven by giant magnetostriction

A giant magnetostrictive and micro-positioning technology, which is applied in the direction of piezoelectric effect/electrostrictive or magnetostrictive motors, generators/motors, electrical components, etc., can solve the problem that the positioning accuracy cannot be fundamentally improved, To achieve the effect of eliminating errors

Active Publication Date: 2017-04-12
ANHUI UNIV OF SCI & TECH
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Problems solved by technology

[0008] Aiming at the deficiencies of the prior art, the present invention discloses a two-degree-of-freedom precision micro-positioning system and method driven by a giant magnetostrictive drive, which can solve the problem of simply using an improved structure when using a giant magnetostrictive drive as a drive system for a positioning platform. The problem that the method cannot fundamentally improve its positioning accuracy

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  • Two-degree-of-freedom precision micro-positioning system and method driven by giant magnetostriction

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[0040] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0041] Such as Figure 1 to Figure 9 As shown, a giant magnetostrictive driven two-degree-of-freedom precision micro-positioning system described in the embodiment of the present invention. Including base, flexible hinge platform, stopper, fixture, data acquisition card, wire, program-controlled current source, displacement sensor, giant magnetos...

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Abstract

The invention discloses a two-degree-of-freedom precision micro positioning system and a two-degree-of-freedom precision micro positioning method for giant magnetostrictive actuation, and relates to the technical field of automation equipment. The system comprises a base, a flexible hinge platform, stoppers, fixtures, a data acquisition card, wires, a programmable current source, displacement sensors, giant magnetostrictive actuators, and a sensor power supply. Two-degree-of-freedom synchronous control can be realized, ultrahigh displacement resolution is achieved, and closed-loop control can be realized to achieve precision positioning.

Description

technical field [0001] The invention relates to the technical field of automation equipment, in particular to a two-degree-of-freedom precision micro-positioning system and method driven by giant magnetostriction. Background technique [0002] High-precision positioning technology is urgently needed in the fields of large-scale integrated circuits, aerospace technology, precision machinery, and precision machining. In the traditional high-precision positioning system, the piezoelectric ceramic driver is mostly used as the feed system, but the piezoelectric ceramic driver has the disadvantages of high working voltage, small driving force, and large hysteresis, which makes it difficult to improve the positioning accuracy of the positioning system. [0003] Giant magnetostrictive material is a new type of magnetostrictive functional material, which can produce a high strain value of 1500-2000ppm under the drive of a low magnetic field; a giant magnetostrictive rod with a diamet...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02N2/06
Inventor 王传礼喻曹丰邓海顺何涛魏本柱冒鹏飞
Owner ANHUI UNIV OF SCI & TECH
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