VIBRATION FREQUENCY DENSITY CONTROL METHOD IN VIBRATION CONDITIONS

  • O. Yu. Oliinyk OJSC RPK «ADMIRAL», ul. B. Krotov 35, Dnipro, Ukraine, 49000
Keywords: oscillation frequency, resonator, technological apparatus, approximation error

Abstract

The use of existing vibration frequency measuring instruments for monitoring technological parameters inside apparatus and equipment is limited due to the presence of vibrations and industrial noise. The lack of data on the use of part of the technological apparatus as flow resonators through the unexplored basic analytical equations for determining the amplitude-frequency characteristics of such resonators determined the direction of these studies. The article is devoted to studies aimed at establishing the relationship between the vibrational field of the resonator, which is used as part of the technological apparatus with a controlled environment, and its reaction in the form of a change in the frequency or amplitude of the resonator’s own vibrations, which carries information about the properties of the substance in the apparatus. The experimental setup diagram, experimental methodology, and data on determining the oscillation frequency of the resonator under vibration conditions for metallic (corrosion-resistant steel) and non-metallic (organic glass) resonators are presented. The curves obtained from the experimental values were approximated using linear and hyperbolic approximations. It was found that the use of hyperbolic approximation reduces the average approximation error by more than six times. It was found that the error of the hyperbolic approximation error does not exceed 0.022% for a metal resonator and 0.05% for an organic glass resonator. The conducted experimental studies confirm the presence of a determinate coupling of the measured frequency characteristics of the resonator with the density, which was measured inside the equipment. The obtained data was used to develop the scientific and methodological foundations of the vibrational frequency control method in conditions of vibration using a part of the device as a resonator of the vibrational frequency sensor.

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Published
2019-12-24
How to Cite
Oliinyk, O. Y. (2019). VIBRATION FREQUENCY DENSITY CONTROL METHOD IN VIBRATION CONDITIONS. METHODS AND DEVICES OF QUALITY CONTROL, (2(43), 41-47. https://doi.org/10.31471/1993-9981-2019-2(43)-41-47
Section
MEASUREMENT OF PHYSICAL AND MECHANICS PARAMETERS OF SUBSTANCES