基于AVR單片機(jī)的閉環(huán)控制系統(tǒng)

　　針對(duì)科研實(shí)驗(yàn)中對(duì)拉壓千斤頂加載過程控制的需要，采用ATmega128單片機(jī)控制步進(jìn)電機(jī)進(jìn)而實(shí)現(xiàn)對(duì)執(zhí)行系統(tǒng)的電動(dòng)泵站實(shí)行自動(dòng)控制。對(duì)力和位移的數(shù)據(jù)采集與處理及用步進(jìn)電機(jī)控制電動(dòng)泵站手柄的技術(shù)細(xì)節(jié)作了重點(diǎn)描述。通過單片機(jī)的A/D變換器對(duì)AMP放大模塊采集的電橋信號(hào)作量化處理，千斤頂?shù)牟倏厥直恢靡离妱?dòng)油泵閥門開啟的方向和大小作若干定位，單片機(jī)根據(jù)力或位移傳感器信號(hào)，實(shí)時(shí)控制步進(jìn)電機(jī)驅(qū)動(dòng)手柄旋轉(zhuǎn)到相應(yīng)操控位置。

　　Abstract:

　　This article describes the use of ATmega128 AVR microcontroller series of DBS electric pumping stations and QF100/200 separate twoway hydraulic jack to automate the process of manipulating the work of the technical content. Articles on force and displacement data acquisition and processing， and stepper motor control electric pump with the handle of the key technical details were described. Through the MCU’s A / D converter module is collected on the AMP amplification quantify the signal bridge， jack handle position control valve opening according to the direction of electric pumps for a number of positioning and size of the microcontroller based on force or displacement sensor signals， real-time control stepper motor drive control handle rotate to the appropriate location.

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