EXPERIMENTAL STUDY OF THE FREQUENCY CHARACTERISTICS OF AN ELECTROPNEUMATIC TRACKING SYSTEM WITH HIGH SPEED PNEUMATIC VALVES AND PWM CONTROL
DOI:
https://doi.org/10.17770/etr2025vol4.8427Keywords:
critical frequencies, electropneumatic positioning system, frequency responses, high speed pneumatic valves, PWM controlAbstract
This paper describes an experimental study on the frequency characteristics of an electropneumatic tracking system with a high-speed pneumatic on/off valve (HSPV) and Pulse Width Modulation (PWM) control. A demonstration experimental test bench has been developed to analyze the Bode diagrams of magnitude and phase for an electropneumatic tracking system with a double-rod pneumatic cylinder, and the system's critical frequency has been determined. A specialized virtual instrument is used for control and data acquisition. The process control and data processing are performed automatically by a computer and the corresponding NI interface board. The results are presented in graphical form and analysis of the obtained Bode Diagrams was made.
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