Compensator for Improving Linear Characteristic of Hydraulic Pressure Loading System and Its Application Method

Abstract

The invention discloses a compensator for improving the linear characteristic of a hydraulic force loading system. The compensator relates to a compensator compensation method for improving the linear characteristic of the hydraulic force loading system. The compensator compensation method for improving the linear characteristic of the hydraulic force loading system comprises the specific steps of (1) establishment of the relationship coefficient between the pressure within a controlled range and the theoretical linear opening degree of an overflow valve according to the full-range loading force and the opening degree corresponding to the full-range loading force; (2) designing of a software product, specifically, a software compensator is used for compensation correction calculation, so that the actual opening degree of the overflow valve is obtained; and the actual opening degree is directly output to an overflow valve control amplification panel through a digital-to-analogue conversion module of a processor; and (3) using of a hardware product, specifically, the theoretical opening degree of the overflow valve is determined, the theoretical opening degree is directly output to the input end of a hardware compensation signal module through the digital-to-analogue conversion module of the processor, and the output end of the hardware compensation signal module is connected to a proportional valve control amplification panel. The invention further discloses a using method of the compensator for the hydraulic force loading system. By adoption of the compensator for improving the linear characteristic of the hydraulic force loading system and the using method of the compensator, the requirement for linear control over a high-precision pressure curve in a laboratory or industrial scientific research and production is met.

Description

technical field [0001] The invention relates to a compensation controller, in particular to a compensator for improving the linear characteristics of a hydraulic pressure loading system. The invention also discloses a method for using the compensator, which belongs to the technical field of intelligent control. Background technique [0002] Pressure is one of the most common physical quantities, and pressure is widely involved in military industry, scientific research, industry, agriculture, food and other fields. The pressing process is widely used in material forming and is the core process of powder material precision forming. Pressure loading can simulate the effect of bearing force on materials, and can be used to study and evaluate the mechanical properties of materials. High-pressure or ultra-high-pressure environment simulation equipment can accurately simulate pressure environments, and can be used in scientific research fields such as deep-sea environment simulati...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a compensator that improves the linear characteristics of the hydraulic pressure loading system, thereby improving the linear characteristics of the hydraulic loading system of the proportional relief valve, and suppressing the problem of poor control accuracy of the loading process caused by the nonlinear linear characteristics of the system , to meet the requirements of hydraulic press loading system for linear and precise control of hydraulic pressure

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