In order to meet the need of controlling the loading process of the tension and compression jack in scientific research experiments, the ATmega128 single-chip microcomputer is used to control the stepper motor to realize the automatic control of the electric pump station of the execution system. The data acquisition and processing of force and displacement and the technical details of controlling the handle of the electric pump station with a stepper motor are described in detail. The bridge signal collected by the AMP amplification module is quantified by the A/D converter of the single-chip microcomputer. The position of the jack\'s control handle is positioned according to the direction and size of the opening of the electric oil pump valve. The single-chip microcomputer controls the stepper motor to drive the handle to rotate to the corresponding control position in real time according to the force or displacement sensor signal. 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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