Two-phase opposed super magnetostrictive self-sensing driver

Abstract

The invention discloses a two-phase opposed super magnetostrictive self-sensing driver, relates to a super magnetostrictive material self-sensing technology and a micro drive technology and belongs to the technical fields of micro drive and electrical control. According to the two-phase opposed super magnetostrictive self-sensing driver disclosed by the invention, the driving and self-sensing function of the driver is achieved by using magnetostriction and converse magnetostriction effects of a super magnetostrictive rod; two self-sensing driving assemblies are symmetrically arranged on two sides of a connecting piece (17) by disc springs (16) for mutually coupling to output a certain displacement and driving force; the pre-compression of the super magnetostrictive rod is accurately controlled and finely adjusted, so that the super magnetostrictive rod works in a linear interval; stable differential voltage is applied to two driving coils by a dual-output digital control power supply with a self-sensing detection and feedback function and a self-sensing signal is monitored in real time by using a real-time dynamic balance signal based on a DSP (Digital Signal Processor) high-speedsinglechip microcomputer, so that the real-time control and accurate positioning for the displacement of the connecting piece (17) are realized; and the two-phase opposed super magnetostrictive self-sensing driver is especially suitable for the field of hydraulic servo control.

Description

technical field [0001] The invention relates to giant magnetostrictive material application technology and micro-drive technology, belongs to the field of micro-drive and electrical control technology, can be used for precise displacement, speed, acceleration and force hydraulic servo control system, is a set of drive and sensor detection The new control element with functions in one has high dynamic response performance and is especially suitable for underwater operations and deep sea exploration. Background technique [0002] In the field of hydraulic servo control, the traditional electromagnetic torque motor has complex structure, large volume and weight, narrow working frequency, low energy density, low resolution, and poor anti-interference ability. It is difficult to meet the requirements of modern industry for hydraulic servo control systems. limit. With the development of hydraulic servo valves in the direction of high pressure, large flow, high frequency response,...

AI Technical Summary

Problems solved by technology

[0002] In the field of hydraulic servo control, the traditional electromagnetic torque motor has complex structure, large volume and weight, narrow working frequency, low energy density, low resolution, and poor anti-interference ability. It is difficult to meet the requirements of modern industry for hydraulic servo control systems. limit

With the development of hydraulic servo valves in the direction of high pressure, large flow, high frequency response, high and low temperature environment adaptability, and anti-interference, traditional electro-hydraulic servo valves are difficult to meet the requirements, and with advanced manufacturing technology, modern design technology and microelectronics The development of technology and the application of new functional materials, the research and development of hydraulic servo valves with new drive technology, new drive structure and high frequency response have become an important direction for the development of servo control technology

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