Instruments and Systems: Monitoring, Control, and Diagnostics Annotation << Back Test Method for Fault Insertion-Based Oscillogram Analysis Systems D.A. NEDOREZOV, N.Y. SIROTININA, A.I. POSTNIKOV, P.A. USTINOV Based on the analysis of the design and production process of oscillographic systems (OS), including systems for analyzing oscillograms of periodic electrical signals (SAOPES), the problem of the need to reduce material and time costs at the stage of their testing while maintaining the quality of produced OS is formulated. One of the directions in which a solution to this problem can be found is the methods of statistical analysis and forecasting. Objective. Develop a test method for SAOPES. The developed method should allow generating test sequences of periods of electrical signals predicted on the basis of small amounts of experimental data obtained from natural test objects during oscillography. This approach will reduce the material and time costs for testing the SAOPES by replacing the natural part of the tests with statistical forecasting without a signifi cant loss of the adequacy of the processes, which, ultimately, will lead to the preservation of the quality of the manufactured OS while simultaneously reducing the cost. Results. Developed a test method for SAOPES. The proposed method makes it possible to generate test sequences of periods of electrical signals predicted on the basis of small amounts of experimental data obtained from natural objects of control during oscillography. This approach made it possible to reduce the material and time costs for testing SAOPES by replacing the natural part of the tests with statistical forecasting without a signifi cant loss of the adequacy of the processes, which led to the preservation of the quality of the produced oscillographic systems while simultaneously reducing the cost. Practical significance. The proposed test method was introduced into the production process at JSC «Information Satellite Systems» named after academician M.F. Reshetnev» for testing the OS. Keywords: oscilloscope, periodic signal anomalies, testing, control, artifacts, automation, prediction. DOI: 10.25791/pribor.10.2021.1295 Pp. 08-14.