CASPIAN JOURNAL
MANAGEMENT AND HIGH TECHNOLOGIES
Hardware-software complex for testing of electronic devices on the effects of vibration
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Read | Golushko D.A., Trusov V.A., Yurkov N.K., Brostilov S.A., Brostilova T.Yu., Rybakov I.M. Hardware-software complex for testing of electronic devices on the effects of vibration // Caspian journal : management and high technologies. — 2016. — №1. — pp. 151-160. |
Golushko D.A. - Ph.D. (Engineering), Associate Professor, Penza State University, 40 Krasnaya St., Penza, 440026, Russian Federation, golushko_da@r4f.su
Trusov V.A. - Ph.D. (Engineering), Associate Professor, Penza State University, 40 Krasnaya St., Penza, 440026, Russian Federation, trusov_v@mail.ru
Yurkov N.K. - D.Sc. (Engineering), Penza State University, 40 Krasnaya St., Penza, 440026, Russian Federation, yurkov_nk@mail.ru
Brostilov S.A. - Ph.D. (Engineering), Associate Professor, Penza State University, 40 Krasnaya St., Penza, 440026, Russian Federation, brostilov@yandex.ru
Brostilova T.Yu. - Ph.D. (Engineering), Associate Professor, Penza State University, 40 Krasnaya St., Penza, 440026, Russian Federation, brostilov@yandex.ru
Rybakov I.M. - post-graduate student, Penza State University, 40 Krasnaya St., Penza, 440026, Russian Federation, ra4foc@r4f.su
The authors have developed an hardware and software system (HSS), brings together a multi-channel installation vibration; information-measuring and control system, induction vibration measurement converter, as well as their software. The digital generator of direct synthesis, used in the HSS, produces the following signals: multi-channel test signal with the required rate of frequency change and phase shift between the channels; control signal for time constant of the smoothing filter; control signal for the sensitivity of the differential amplifier. The generator produces four-channel test signal of variable frequency with the required phase shift and the control signal for time constant, which is synchronized with the varying frequency. The developed system allows determining the dynamic characteristics that reflect the properties of the object of study, which is an important factor during the choice of methods, means and modes of conducting vibration tests. The use of independent excitation of the object attachment points allows exciting resonance at all normal frequencies of the object within the examined frequency range. It has been proved that contactless resonance detection based on impedance-frequency characteristic of a vibrator is accurate and reliable. Distortions in low-frequency zone of the working range, introduced by filter pulsations of low frequency transducer into effective value, have been lowered due to the introduction of variable rate of test signal frequency rate and the control of he time constants. The block diagram of the HSS and the algorithm for producing the test signal have also been developed and presented in the paper.
Key words: проведение испытаний, электронные средства, информационно-измерительная система, механические воздействия, динамические характеристики, испытательный сигнал, вибрации, собственные частоты, виброизмерительный преобразователь, testing, electronic, informati