Measuring System of Vibration Diagnostic with the Metrological Self-Control Function
A. Grigoriev1, S. Lebedev2, A. Timofeev3

1Anatoly Grigoriev, LLC SensFab GmbH, Dortmund, Germany.
2Sergey Lebedev*, Design Center ―Design of integrate microelectronic system‖, National Research University of Electronic Technology (MIET), Moscow, Russian Federation.
3Alexey Timofeev*, Department of measurement, Joint Stock Company ―Zelenograd nanotechnology center‖, Moscow, Russian Federation.
Manuscript received on September 23, 2019. | Revised Manuscript received on October 15, 2019. | Manuscript published on October 30, 2019. | PP: 6639-6646 | Volume-9 Issue-1, October 2019 | Retrieval Number: A1892109119/2019©BEIESP | DOI: 10.35940/ijeat.A1892.109119
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Abstract: In the article, there is given the description of the method of metrological self-control in the measuring system of vibration diagnostic, the structural system of scheme is shown and the peculiarities of its functioning is self-control mode are given. The diagnostic methods, discussed in the article, usually are not completely independent and show the bigger effectiveness in the combined usage. The following problem exists: in the early stages of the appearing of a defect the informative components of vibration signals have extremely small amount of the energy and are covered with the background noise. Therefore, the effective method of the signal processing should assume the extraction of the informative signs of a damage when the signal/noise ratio is less than 1. Currently the biggest interest is presented by the group of the time frequency methods because they allow localizing in time the peculiarities of a vibration signal, therefore, they are potentially more sensitive to occurring defects than the time and spectral methods. Among their disadvantages are the mathematical complexity and the complexity of the realization and the interpretation of the results. The main advantage of developing system is the presence of the high frequency vibration measurement channel and also the built-in functional self-diagnosis system which principle is experimentally confirmed.
Keywords: Metrological self-control, microcircuit, signal processing, vibration diagnostics, vibration sensor.