FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2903671204> ?p ?o ?g. }

• W2903671204 endingPage "4317" @default.
• W2903671204 startingPage "4317" @default.
• W2903671204 abstract "Omnidirectional sound sources are needed to perform a large variety of tests in acoustics. Typically, they consist of conventional speaker drivers arranged in a dodecahedron. However, the directivity of the speaker drivers sharpens with frequency, which induces an intense decrease of the sound pressure levels at the edges of the dodechaedron. In this work, the problem is mitigated by building an Omnidirectional Parametric Loudspeaker (OPL), which contains hundreds of small ultrasound transducers set on a sphere. Each transducer emits an ultrasonic carrier wave modulated by an audible signal. Thanks to nonlinear propagation, the air itself demodulates the signal bringing it back to the audible range. The construction of an OPL prototype is challenging. The structure has been built by 3D-printing a set of pieces that conform to the sphere. Each piece contains the exact location of the transducers, which are aligned in parallels to facilitate the structural assembly and the wiring. The performance of the OPL has been tested in an anechoic chamber. Measurements show that the OPL has a good omnidirectional behavior for most frequencies. It clearly improves the directivity of dodechaedral sources in the high frequency range, but performs worse at low frequencies." @default.
• W2903671204 created "2018-12-22" @default.
• W2903671204 creator A5007695723 @default.
• W2903671204 creator A5024994105 @default.
• W2903671204 creator A5029958990 @default.
• W2903671204 creator A5032816883 @default.
• W2903671204 creator A5045507101 @default.
• W2903671204 creator A5056248402 @default.
• W2903671204 date "2018-12-07" @default.
• W2903671204 modified "2023-10-03" @default.
• W2903671204 title "Construction of an Omnidirectional Parametric Loudspeaker Consisting in a Spherical Distribution of Ultrasound Transducers" @default.
• W2903671204 cites W1842102863 @default.
• W2903671204 cites W1968392023 @default.
• W2903671204 cites W1971298410 @default.
• W2903671204 cites W1979380337 @default.
• W2903671204 cites W2014466949 @default.
• W2903671204 cites W2021036023 @default.
• W2903671204 cites W2021102663 @default.
• W2903671204 cites W2021785526 @default.
• W2903671204 cites W2026507895 @default.
• W2903671204 cites W2031633662 @default.
• W2903671204 cites W2038947648 @default.
• W2903671204 cites W2043967161 @default.
• W2903671204 cites W2048900192 @default.
• W2903671204 cites W2049297401 @default.
• W2903671204 cites W2050390762 @default.
• W2903671204 cites W2056489772 @default.
• W2903671204 cites W2064597769 @default.
• W2903671204 cites W2072974037 @default.
• W2903671204 cites W2077250325 @default.
• W2903671204 cites W2077727167 @default.
• W2903671204 cites W2084196626 @default.
• W2903671204 cites W2091667724 @default.
• W2903671204 cites W2139880957 @default.
• W2903671204 cites W2140917918 @default.
• W2903671204 cites W2797219163 @default.
• W2903671204 cites W2819364025 @default.
• W2903671204 cites W2890202174 @default.
• W2903671204 doi "https://doi.org/10.3390/s18124317" @default.
• W2903671204 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/6308943" @default.
• W2903671204 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/30544537" @default.
• W2903671204 hasPublicationYear "2018" @default.
• W2903671204 type Work @default.
• W2903671204 sameAs 2903671204 @default.
• W2903671204 citedByCount "13" @default.
• W2903671204 countsByYear W29036712042019 @default.
• W2903671204 countsByYear W29036712042020 @default.
• W2903671204 countsByYear W29036712042021 @default.
• W2903671204 countsByYear W29036712042022 @default.
• W2903671204 countsByYear W29036712042023 @default.
• W2903671204 crossrefType "journal-article" @default.
• W2903671204 hasAuthorship W2903671204A5007695723 @default.
• W2903671204 hasAuthorship W2903671204A5024994105 @default.
• W2903671204 hasAuthorship W2903671204A5029958990 @default.
• W2903671204 hasAuthorship W2903671204A5032816883 @default.
• W2903671204 hasAuthorship W2903671204A5045507101 @default.
• W2903671204 hasAuthorship W2903671204A5056248402 @default.
• W2903671204 hasBestOaLocation W29036712041 @default.
• W2903671204 hasConcept C105795698 @default.
• W2903671204 hasConcept C117251300 @default.
• W2903671204 hasConcept C121332964 @default.
• W2903671204 hasConcept C127413603 @default.
• W2903671204 hasConcept C149712133 @default.
• W2903671204 hasConcept C157138929 @default.
• W2903671204 hasConcept C189039984 @default.
• W2903671204 hasConcept C199360897 @default.
• W2903671204 hasConcept C21822782 @default.
• W2903671204 hasConcept C24027999 @default.
• W2903671204 hasConcept C24890656 @default.
• W2903671204 hasConcept C2779843651 @default.
• W2903671204 hasConcept C33923547 @default.
• W2903671204 hasConcept C41008148 @default.
• W2903671204 hasConcept C56318395 @default.
• W2903671204 hasConcept C76155785 @default.
• W2903671204 hasConcept C81288441 @default.
• W2903671204 hasConceptScore W2903671204C105795698 @default.
• W2903671204 hasConceptScore W2903671204C117251300 @default.
• W2903671204 hasConceptScore W2903671204C121332964 @default.
• W2903671204 hasConceptScore W2903671204C127413603 @default.
• W2903671204 hasConceptScore W2903671204C149712133 @default.
• W2903671204 hasConceptScore W2903671204C157138929 @default.
• W2903671204 hasConceptScore W2903671204C189039984 @default.
• W2903671204 hasConceptScore W2903671204C199360897 @default.
• W2903671204 hasConceptScore W2903671204C21822782 @default.
• W2903671204 hasConceptScore W2903671204C24027999 @default.
• W2903671204 hasConceptScore W2903671204C24890656 @default.
• W2903671204 hasConceptScore W2903671204C2779843651 @default.
• W2903671204 hasConceptScore W2903671204C33923547 @default.
• W2903671204 hasConceptScore W2903671204C41008148 @default.
• W2903671204 hasConceptScore W2903671204C56318395 @default.
• W2903671204 hasConceptScore W2903671204C76155785 @default.
• W2903671204 hasConceptScore W2903671204C81288441 @default.
• W2903671204 hasFunder F4320325036 @default.
• W2903671204 hasFunder F4320332999 @default.
• W2903671204 hasIssue "12" @default.
• W2903671204 hasLocation W29036712041 @default.
• W2903671204 hasLocation W29036712042 @default.
• W2903671204 hasLocation W29036712043 @default.

• next