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Applied Sciences, Vol. 7, Pages 1074: Research Progress of Related Technologies of Electric-Pneumatic Pressure Proportional Valves

17 Oct 2017

Applied Sciences, Vol. 7, Pages 1074: Research Progress of Related Technologies of Electric-Pneumatic Pressure Proportional Valves

Applied Sciences doi: 10.3390/app7101074

Authors:
Fangwei Ning
Yan Shi
Maolin Cai
Yixuan Wang
Weiqing Xu

Because of its cleanness, safety, explosion proof, and other characteristics, pneumatic technologies have been applied in numerous industrial automation fields. As a key controlling element of a pneumatic system, electric-pneumatic pressure proportional valves have attracted the attention of many scholars in recent years. In this paper, in order to illustrate the research status and the development trend of electric-pneumatic pressure proportional valves, firstly, several related technologies will be introduced, for example, simulation methods and experimental modes. In addition, controlling methods, structural styles, and feedback forms are also compared in several types of pressure proportional valves. Moreover, the controlling strategy, as a significant relevant factor affecting the efficiency of valves, will be discussed in this paper. At the end, the conclusion and worksof electric-pneumatic pressure proportional valves in the future will bediscussed to achieve the electrical integration.

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