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Speaker that uses the non-linearity in air to create sound
Blekinge Tekniska Högskola, Sektionen för ingenjörsvetenskap, Avdelningen för maskinteknik.
2005 (engelsk)Independent thesis Advanced level (degree of Master (One Year))Oppgave
Abstract [en]

The aim of this work was to investigate theoretically and experimentally the fact that it is possible to create sound by using the nonlinearity in air. A speaker was built verifying the theory that if at least two high frequencies at high amplitude is propagating through a nonlinear medium, for example air, the difference frequency of these two is created in mid air. Measurements and simulations were performed on what the pressure distribution from a ultrasonic transducer looks like.

sted, utgiver, år, opplag, sider
2005. , s. 62
Emneord [en]
Parametric loudspeaker, Difference frequency generation, Biharmonic boundary condition, Nonlinear acoustics
HSV kategori
Identifikatorer
URN: urn:nbn:se:bth-5498Lokal ID: oai:bth.se:arkivex7CEBFD41574B5E97C1256FFB00429E02OAI: oai:DiVA.org:bth-5498DiVA, id: diva2:832881
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Tilgjengelig fra: 2015-04-22 Laget: 2005-05-08 Sist oppdatert: 2015-06-30bibliografisk kontrollert

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