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Метрологические аспекты параметров акустической эмиссии при мониторинге разложения пероксида водорода

Метрологические аспекты параметров акустической эмиссии при мониторинге разложения пероксида водорода

Abstract

The work objective is to study the metrological aspects of the acoustic emission (AE) method as applied to the monitoring of the hydrogen peroxide decay rate. The AE changing parameter that determines the method metrological properties as a whole is selected. It is established that the process of the hydrogen peroxide decomposition causes stress waves in the local liquid volume. This leads to the formation of the acoustic signals that allow firmly control this process through the AE method. The metrological evaluation of the method implemented in two stages is analyzed. The significance of the first stage allowing for the quality relative AE-research is identified. The experiments performed have confirmed high sensitivity of the proposed method. Thus, it is possible to carry out effective relative studies of the compared processes according to the AE parameters. The acoustic emission data show that instrumental and methodological errors of the AE method in general can be significant in case of the counter conditions, and this fact can be a benchmark for future research.

Целью настоящей работы являлось изучение метрологических аспектов метода акустической эмиссии (АЭ) применительно к мониторингу скорости разложения пероксида водорода. Проведен выбор измеряемого параметра АЭ, определяющего метрологические свойства метода в целом. Установлено, что процесс разложения пероксида водорода вызывает волны напряжения в локальном объеме жидкости. Это приводит к образованию акустических сигналов, позволяющих надежно контролировать процесс методом АЭ. Проанализирована метрологическая оценка метода, реализуемая в два этапа. Определена важность первого этапа, позволяющего проводить качественные относительные АЭ-исследования. Выполненные эксперименты подтвердили факт высокой чувствительности предложенного способа. Таким образом, можно проводить эффективные относительные исследования сравниваемых процессов по параметрам АЭ. Акустико-эмиссионные данные показывают, что инструментальные и методические погрешности метода АЭ в целом могут быть существенными при несоблюдении идентичных условий, и этот факт может быть ориентиром для дальнейших исследований.

Keywords

АКУСТИЧЕСКАЯ ЭМИССИЯ,ACOUSTIC EMISSION,ХИМИЧЕСКИЕ РЕАКЦИИ В ЖИДКОСТИ,CHEMICAL REACTIONS IN LIQUID,ПЕРОКСИД ВОДОРОДА,HYDROGEN PEROXIDE,МЕТРОЛОГИЧЕСКАЯ ОЦЕНКА,METROLOGICAL EVALUATION,СУММАРНЫЙ СЧЕТ АКУСТИЧЕСКИХ СИГНАЛОВ,TOTAL COUNT OF ACOUSTIC SIGNALS,СИСТЕМАТИЧЕСКИЕ И СЛУЧАЙНЫЕ ПОГРЕШНОСТИ,SYSTEMATIC AND RANDOM ERRORS

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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
Average
gold