Please use this identifier to cite or link to this item: http://dlib.scu.ac.ir/handle/1956/1698
Title: Design og studier av lydkilde for SOBER-prosjektet
subject: VDP::Matematikk og Naturvitenskap: 400::Fysikk: 430;Mastergrad
Publisher: The University of Bergen
Description: An ultrasonic sound source was constructed for the University of Bergen’s participation in the Sonic Boom European Research project. A piezoceramic disc was chosen as the active element and some of its properties were examined. The most important material parameters were estimated by means of a Mason type model. The Mason model was further used to compute dimensions and specific impedances of acoustic coupling layers. A quarter-wave and a three-quarter-wave coupling layer were tried in laboratory measurements. Symmetry and other properties of the transducer’s sound beam were inspected at different source levels. Measurements at low amplitudes were compared to the far field of a plane circular piston source. The Bergen Code was employed in solving the KZK equation for a finite amplitude sound beam.
URI: https://bora.uib.no/handle/1956/1698
More Information: 82-8088-028-3 (electronic version)
http://hdl.handle.net/1956/1698
Appears in Collections:Department of Earth Science

Files in This Item:
Click on the URI links for accessing contents.
Title: Design og studier av lydkilde for SOBER-prosjektet
subject: VDP::Matematikk og Naturvitenskap: 400::Fysikk: 430;Mastergrad
Publisher: The University of Bergen
Description: An ultrasonic sound source was constructed for the University of Bergen’s participation in the Sonic Boom European Research project. A piezoceramic disc was chosen as the active element and some of its properties were examined. The most important material parameters were estimated by means of a Mason type model. The Mason model was further used to compute dimensions and specific impedances of acoustic coupling layers. A quarter-wave and a three-quarter-wave coupling layer were tried in laboratory measurements. Symmetry and other properties of the transducer’s sound beam were inspected at different source levels. Measurements at low amplitudes were compared to the far field of a plane circular piston source. The Bergen Code was employed in solving the KZK equation for a finite amplitude sound beam.
URI: https://bora.uib.no/handle/1956/1698
More Information: 82-8088-028-3 (electronic version)
http://hdl.handle.net/1956/1698
Appears in Collections:Department of Earth Science

Files in This Item:
Click on the URI links for accessing contents.
Title: Design og studier av lydkilde for SOBER-prosjektet
subject: VDP::Matematikk og Naturvitenskap: 400::Fysikk: 430;Mastergrad
Publisher: The University of Bergen
Description: An ultrasonic sound source was constructed for the University of Bergen’s participation in the Sonic Boom European Research project. A piezoceramic disc was chosen as the active element and some of its properties were examined. The most important material parameters were estimated by means of a Mason type model. The Mason model was further used to compute dimensions and specific impedances of acoustic coupling layers. A quarter-wave and a three-quarter-wave coupling layer were tried in laboratory measurements. Symmetry and other properties of the transducer’s sound beam were inspected at different source levels. Measurements at low amplitudes were compared to the far field of a plane circular piston source. The Bergen Code was employed in solving the KZK equation for a finite amplitude sound beam.
URI: https://bora.uib.no/handle/1956/1698
More Information: 82-8088-028-3 (electronic version)
http://hdl.handle.net/1956/1698
Appears in Collections:Department of Earth Science

Files in This Item:
Click on the URI links for accessing contents.