Діагностика та аналіз функціонування первинних вимірювальних перетворювачів

Abstract

The article is devoted to solving the urgent problem of uninterrupted operation of primary measuring transducers, the quality of the automatic control system depends on the correctness and accuracy of their operation. The article is devoted to solving the urgent problem of uninterrupted operation of primary measuring transducers, the accuracy and accuracy of which depends on the quality of the automatic control system. Today, most of the work done by scientists and specialists in the field of technology is aimed at improving the flow of technological processes, reducing losses, improving the accuracy, speed and quality of regulation through the introduction of modern methods and approaches of modern control theory. But a relatively small amount of research is aimed at improving the quality of functioning of electrical systems by diagnosing the current state of electrical equipment, because timely detection of faults and the impact on the advance will prevent breakage with subsequent repair, production downtime by eliminating breakage, replacement of the device. For timely detection of breakdowns and malfunctions in the operation of the primary measuring transducers, technical diagnostic and control methods should be used. The purpose of the study is to develop a method of comprehensive diagnosis for the assessment in the early stages of the condition of the primary converters, their correct operation and the identification of possible faults. The method of complex diagnostics by statistical analysis of technological measurements using Shekhart control charts, test diagnostics of primary converters and analysis of the schedule of repair and preventive maintenance of technical equipment is presented. The Shekhart control charts were constructed by the levels in 4 sections of the inclined diffusion apparatus and the results were compared in time taking into account the end time of the process in the previous sections. Experimental studies were carried out in the Statistica software package. The X-card and the Schuhart R-card are presented, the analysis of which allows to reveal the appearance of specific causes of the process of delight. The correspondence of the studied sample to the normal distribution law was analyzed using the Kolmogorov-Smirnov (K-S test) and Shapiro-Wilkie (W test) criteria. To simplify decision-making by the operator, a structural-logical diagram of the stages for detecting malfunctions of primary measuring transducers has been developed. Key words: primary measuring transducers, electrical complexes, breakdowns, malfunctions, diagnostics, electrical equipment, food production