Discussion on the sensitivity of optical cables based on distributed acoustic sensing
Sign Up to like & getrecommendations! Published in 2019 at "Optical Review"
DOI: 10.1007/s10043-019-00547-x
Abstract: Distributed acoustic sensing (DAS) technology plays an increasingly important role in the field of underwater acoustic detection because of its own advantages. To measure acoustic pressure sensitivity of seven kinds of optical cables in the… read more here.
Keywords: optical cables; pressure sensitivity; acoustic pressure; sensitivity ... See more keywords
Aeroacoustic scattering of rotating sources using a frequency-domain acoustic pressure gradient formulation
Sign Up to like & getrecommendations! Published in 2018 at "Applied Acoustics"
DOI: 10.1016/j.apacoust.2017.09.010
Abstract: Abstract In this paper, a frequency-domain methodology for acoustic scattering prediction from rotating sources is suggested. Frequency-domain acoustic analogy formulations are used for incident field prediction of acoustic pressure and the acoustic pressure gradient. The… read more here.
Keywords: methodology; rotating sources; acoustic pressure; pressure gradient ... See more keywords
Acoustic pressure oscillation effects on mean burning rates of plateau propellants
Sign Up to like & getrecommendations! Published in 2021 at "Combustion and Flame"
DOI: 10.1016/j.combustflame.2020.11.018
Abstract: Abstract Combustion instabilities constitute a well pronounced problem in all large rocket motors due to the inherent acoustic pressure oscillations established based on the port geometries. Suppression of the combustion instabilities in the solid rocket… read more here.
Keywords: burning rates; acoustic pressure; burning rate; mean burning ... See more keywords
Experimental validation of unsteady pressure-sensitive paint for acoustic applications
Sign Up to like & getrecommendations! Published in 2020 at "Experimental Thermal and Fluid Science"
DOI: 10.1016/j.expthermflusci.2019.109915
Abstract: Abstract Fast response Pressure-Sensitive Paint (iPSP) developed at the German Aerospace Center (DLR) in Gottingen is evaluated for measurements of acoustic pressure distributions. A test facility is constructed, which allows to measure these acoustic pressure… read more here.
Keywords: acoustic pressure; sensitive paint; pressure sensitive; experimental validation ... See more keywords
Effect of geometrical configuration of reactor on a ZrP nano-dispersion process using ultrasonic irradiation.
Sign Up to like & getrecommendations! Published in 2019 at "Ultrasonics sonochemistry"
DOI: 10.1016/j.ultsonch.2018.11.008
Abstract: This study investigated the position of ultrasonic irradiation source and reactor geometry on fragmentation rate of a layered compound, α-zirconium phosphate (α-ZrP). By numerically solving the acoustic pressure distribution using COMSOL Multiphysics®, it is clarified… read more here.
Keywords: acoustic pressure; position; ultrasonic irradiation; bottom vessel ... See more keywords
Accuracy improvement for optical free-field acoustic pressure measurements by photon correlation based on microscopic imaging
Sign Up to like & getrecommendations! Published in 2022 at "Optical Engineering"
DOI: 10.1117/1.oe.61.1.014105
Abstract: Abstract. The optical method of photon correlation for the measurement of the free-field acoustic pressure has meaningful applications, such as forming a traceability chain based on the absolute measurement for various types of acoustic sensors.… read more here.
Keywords: correlation; acoustic pressure; free field; photon correlation ... See more keywords
Assessing ontogenetic change in acoustic pressure sensitivity in larval fishes through modelling
Sign Up to like & getrecommendations! Published in 2018 at "Journal of the Acoustical Society of America"
DOI: 10.1121/1.5067415
Abstract: Detecting acoustic pressure can improve a fish’s survival and fitness through increased sensitivity to environmental sounds. Pressure detection results from the interactions between the swim bladder and otoliths. In larval fishes, those interactions change rapidly… read more here.
Keywords: acoustic pressure; bladder; sensitivity; otolith bladder ... See more keywords
On the fundamental possibility of creating a laser reference for a local acoustic pressure in a fluid
Sign Up to like & getrecommendations! Published in 2017 at "JETP Letters"
DOI: 10.1134/s0021364017140119
Abstract: The possibility of establishing an unambiguous relation between the amplitude of a local acoustic pressure in a fluid and the parameter laser radiation scattered on microparticles located in this region has been studied. The fundamental… read more here.
Keywords: fundamental possibility; pressure fluid; acoustic pressure; local acoustic ... See more keywords
Sound Radiation Mitigation of Geometrically Nonlinear Plates Subjected to Subsonic Airflow
Sign Up to like & getrecommendations! Published in 2021 at "Mathematical Problems in Engineering"
DOI: 10.1155/2021/3090958
Abstract: This paper gives a theoretical analysis to obtain and reduce the acoustic pressure generated from plates with geometric nonlinearities subjected to subsonic airflow and external excitation. von-Kármán assumptions are applied considering the nonlinear terms in… read more here.
Keywords: acoustic pressure; subsonic airflow; method; plate ... See more keywords
The acoustic analogy in four dimensions
Sign Up to like & getrecommendations! Published in 2019 at "International Journal of Aeroacoustics"
DOI: 10.1177/1475472x19890259
Abstract: The classical acoustic analogy theory is incomplete in the sense that the original research on the subject focused only on the prediction of acoustic pressure. There were no provisions for predicting the three components of… read more here.
Keywords: acoustic pressure; analogy; analogy four; acoustic velocity ... See more keywords