Transmission and reflection of sound wave from a layer of liquid with gas bubbles

Gubaidullin, D. A.; Gubaidullina, D. D.; Fedorov, Yu. V.

doi:10.1088/1742-6596/789/1/012016

Cited by 4 publications

(3 citation statements)

References 16 publications

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“…Sound is a vibration that typically propagates as an audible wave of pressure in the range of 20 to 20,000 Hz through a transmission medium such as a gas, liquid, or solid (Godin, 2011; Gubaidullin et al., 2017). The physical properties of the medium have a great influence on the acoustic characteristics, such as the sound velocity, frequency, and sound pressure (Hayes & Rivlin, 1961).…”

Section: Principle Of Acoustic Vibration Technologymentioning

confidence: 99%

Acoustic vibration technology: Toward a promising fruit quality detection method

Ding

Feng

Wang

et al. 2021

Comp Rev Food Sci Food Safe

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Understanding fruit quality is an effective way to reduce fruit loss and waste by providing proper strategies for fruit processing and management. Various noninvasive technologies have been developed for assessing fruit quality. Among them, acoustic vibration technology has received considerable attention from academics. As the fruit ripens, the physical and biochemical diversities of fruit cell lead to changes in the vibration characteristics of the fruit, which verified the feasibility of assessing fruit firmness by acoustic vibration technology from the microscopic view. Besides, the acoustic and vibration theories also provided the theoretical basis for this technology. The measurement system was mainly consisted of excitation devices, detection sensors, and signal processing modules. By using different excitation methods and devices, the fruit could demonstrate a free or forced vibration. The response signals of fruit were influenced by detection methods and sensors. To meet the requirement of high‐throughput detection, noncontact excitation devices and detection sensors were more suitable for on‐line applications. In addition, the relative locations of excitation and detection points and the posture style of fruit also had an impact on the measurement results, which should be determined before the test. Moreover, the proper data analysis method was equally important to extract potential parameters to improve the performance of prediction models. This paper provided a comprehensive overview concerning the principle, system composition, data analysis, and on‐line applications of acoustic vibration technology, and discussed the perspectives of future trends to promote the intensive study and further extension of this technology.

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Section: Principle Of Acoustic Vibration Technologymentioning

confidence: 99%

Acoustic vibration technology: Toward a promising fruit quality detection method

Ding

Feng

Wang

et al. 2021

Comp Rev Food Sci Food Safe

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show abstract

“…The propagation of acoustic waves in multifractional mixtures of liquid with gas and vapor-gas bubbles of different sizes and different compositions is studied in [17][18][19]. The problem of reflection of an acoustic wave from a two-layer medium containing a layer of bubble liquid is considered in [20][21][22].…”

Section: Introductionmentioning

confidence: 99%

Reflection and Transmission of Acoustic Waves through the Layer of Multifractional Bubbly Liquid

Gubaidullin

Gafiyatov

2018

MATEC Web Conf.

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Abstract. The mathematical model that determines reflection and transmission of acoustic wave through a medium containing multifractioanl bubbly liquid is presented. For the water-water with bubbles-water model the wave reflection and transmission coefficients are calculated. The influence of the bubble layer thickness on the investigated coefficients is shown. The theory compared with the experiment. It is shown that the theoretical results describe and explain well the available experimental data. It is revealed that the special dispersion and dissipative properties of the layer of bubbly liquid can significantly influence on the reflection and transmission of acoustic waves in multilayer medium.

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“…This is due to both natural phenomena, such as, for example, near-bottom or subsurface layers containing gas bubbles in seas and lakes [1][2][3][4][5], layers of fog, dusty gas, containing in atmosphere [6][7][8], and engineering processes [9,10]. The design and parameters of a combined panel consisting of two glasses or polycarbonates with a gap between them filled with a bubbly fluid is described in [10]; this panel is used for the simultaneous information protection in the acoustic, optical, and electromagnetic technical channels.…”

Section: Introductionmentioning

confidence: 99%

Reflection of acoustic waves from the boundary or layer of two-phase medium

2018

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Abstract. The inclined incidence of the acoustic wave on a layer of gas-droplet mixture or bubbly liquid of finite thickness is theoretically investigated. In the case of the incidence of the low-frequency acoustic wave to interface between the pure gas and aerosol or to interface between pure liquid and bubbly liquid the basic laws of reflection and transmission of a wave are established. This circumstance allows us to evaluate the transmission and reflection coefficients, depending on the volume content of inclusions and the angle of incidence of the acoustic wave. In particular, for the interface between pure gas and aerosol analytical expressions of the critical angle of wave incidence at which reflection coefficient becomes zero are obtained, i.e. thus there is a complete passage of the acoustic wave through the interface. It is established that the increase of the angle of incidence of the acoustic wave on the boundary or layer of aerosol causes: first, either to increase or to decrease of the reflection coefficient at low frequencies, and second, to appearance of additional minima depending on the reflection coefficient from frequency of disturbances related to the difference of speed of sound and density of the medium.

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Transmission and reflection of sound wave from a layer of liquid with gas bubbles

Cited by 4 publications

References 16 publications

Acoustic vibration technology: Toward a promising fruit quality detection method

Acoustic vibration technology: Toward a promising fruit quality detection method

Reflection and Transmission of Acoustic Waves through the Layer of Multifractional Bubbly Liquid

Reflection of acoustic waves from the boundary or layer of two-phase medium

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