Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
A Self-Silenced Sound Beam
Responsible organisation
2010 (English)In: Acoustical Physics, ISSN 1063-7710, E-ISSN 1562-6865, Vol. 56, no 5, 637-639 p.Article in journal (Refereed) Published
Abstract [en]

Parametric loudspeakers are transmitting two high power ultrasound frequencies. During propagation through the air, nonlinear interaction creates a narrow sound beam at the difference frequency, similar to a light beam from a torch. In this work is added the physical phenomenon of propagation cancellation, leaving a limited region within which the sound can be heard—a 1 meter long cylinder with diameter 8 cm. It is equivalent to a torch which would only illuminate objects within 1 meter. The concept is demonstrated both in simulation and in experiment.

Place, publisher, year, edition, pages
Pleiades Publishing , 2010. Vol. 56, no 5, 637-639 p.
National Category
Fluid Mechanics and Acoustics Applied Mechanics
Identifiers
URN: urn:nbn:se:bth-7680DOI: 0.1134/S1063771010050064ISI: 000281713600006Local ID: oai:bth.se:forskinfo358C6270B292974CC12578050032B3AEOAI: oai:DiVA.org:bth-7680DiVA: diva2:835324
Note
http://www.maik.ru/cgi-perl/journal.pl?lang=eng&name=acoustAvailable from: 2012-09-18 Created: 2010-12-26 Last updated: 2015-06-30Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full text

Search in DiVA

By author/editor
Hedberg, Claes
In the same journal
Acoustical Physics
Fluid Mechanics and AcousticsApplied Mechanics

Search outside of DiVA

GoogleGoogle Scholar

Altmetric score

Total: 58 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf