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Principle of processing the optical video signal for the identification of the vibration signs of extended objects

Authors: Bykovskyi, Yurii M.; Nurzai, Volodymyr A.;

Principle of processing the optical video signal for the identification of the vibration signs of extended objects

Abstract

The implementation of the photomodulation method of measuring the vibration parameters of the spatially distributed objects has been discussed. The aim of the studies is to consider the option of measuring the vibration parameters using a video camera mounted coaxially to the direction of the vibration. In this case the greatest problems in the interpretation of data take place. A method of processing video data for the identification of the frequencies of vibration of the objects located within the area which the camera captures is developed. The possibility of using the optical zoom for monitoring the distant objects is studied experimentally. The possibility of using a stroboscope for measuring the frequencies of vibration exceeding the frequency of shooting is studied. The experiment on the simultaneous identification of different frequencies of two independent objects was carried out. It proved possible to measure the frequency of vibration of the object located at a distance of 5.5 meters from the camera. The use of the stroboscopic lighting allowed detecting the frequencies of vibration by many times exceeding the shooting speed of the camera. The software for the identification of the frequencies of vibration of multiple objects was developed. The undertaken studies showed that the developed method is applicable in the industrial environment and serves as an urgent alternative to the existing methods of measuring vibration. The results obtained in the work give evidence of the efficiency of the suggested optical method for measuring the vibration parameters of extended objects.

Разработан оптический способ определения параметров вибрации объектов путем интерпретации информации видеофайла, показана возможность применения оптического увеличения видеокамеры для наблюдения расположенных на разном расстоянии использование стробоскопического освещения для регистрации высоких частот вибрации. Представлена методика разделения кадра для одновременного измерения вибрации от различных источников.

Розроблено оптичний спосіб визначення параметрів вібрації об'єктів шляхом інтерпретації інформації відеофайла, показано можливість застосування оптичного наближення відеокамери для спостереження об'єктів на різній відстані, використання стробоскопічного освітлення для реєстрації високих частот вібрації. Подана методику розбиття кадру для одночасного вимірювання вібрації від різних джерел.

Keywords

вібрація; оптичні методи; обробка відеосигналу; вібраційны параметри; джерело акустичного сигналу, vibration; optical methods; video signal processing; vibration parameters; source of acoustic signal, вибрация; оптические методы; обработка видеосигнала; вибрационные параметры; источник акустического сигнала

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
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