Abstract
Relevance Aircraft engine ignition systems are one of the main elements that determine the reliability of the operation of the aircraft as a whole. Evaluating and monitoring the performance of such systems must be carried out at stages from development to operation, so the task of creating such systems is very urgent. Aim of research Development of new structures and principles of operation of digital meters of parameters characterizing the efficiency of capacitive ignition systems of aircraft engines with semiconductor spark plugs. Research methods The issues of construction are considered and the developed hardware solutions for digital meters of parameters characterizing the efficiency of capacitive ignition systems of aircraft engines with semiconductor spark plugs are presented. The structures of the meters and timing diagrams of their operation are presented, and the features of using current and voltage sensors are discussed. Results The article presents the results of the development of measuring systems for parameters characterizing the efficiency of capacitive ignition systems of aircraft engines with semiconductor spark plugs — a meter for the criterion of the ignition ability of the ignition system as a function of the parameters of spark discharges in spark plugs and a universal meter for the duration of spark discharges, which allows measuring the duration of discharges of oscillatory and aperiodic types. The proposed technical solutions make it possible to improve the quality and completeness of assessing the efficiency of spark discharges in semiconductor spark plugs. The developed structures belong to the class of systems with «hard» operating logic and perform the necessary measuring operations with maximum speed.
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