Inlämning av Examensarbete / Submission of Thesis

Sara Andersson; Michael Einwächter ISRN: BTH-AMT-EX--2011/CI-04--SE, pp. 54. ING/School of Engineering, 2011.

The work

Författare / Author: Sara Andersson, Michael Einwächter,
Titel / Title: Underwater Nonlinear Acoustic Speaker
Abstrakt Abstract:

In this work an acoustic parametric array for underwater use was designed, built and tested. An acoustic parametric array creates a focused beam of sound with the help of the nonlinearity of the water. This was in this work accomplished with a multi-element speaker especially designed for underwater acoustics and an ultrasound signal generation system.
This parametric array has multiple purposes, both in ommercial and military use. One could use such an array to scan the bottom of the ocean, or aim it horizontally in front of a boat to scan for objects hidden in unknown water. The array can also be used for sending confidential information
between two vessels, or for surveillance of for example harbor entrances.

Ämnesord / Subject: Maskinteknik - Mechanical Engineering\General

Nyckelord / Keywords: Nonlinear acoustics, Parametric array, Piezoelectric materials, Underwater acoustics.

Publication info

Dokument id / Document id: houn-8ncrfe
Program:/ Programme Civilingenjörsprogram i maskinteknik
Registreringsdatum / Date of registration: 11/06/2011
Uppsatstyp / Type of thesis: Examensarbete för civilingenjörsexamen/Degree project, Master of Science in Engineering


Handledare / Supervisor: Claes Hedberg
Examinator / Examiner: Mats Walter
Organisation / Organisation: Blekinge Institute of Technology
Institution / School: ING/School of Engineering

+46 455 38 50 00
I samarbete med / In co-operation with: Kockums

Files & Access

Bifogad uppsats fil(er) / Files attached: bth2011andersson.pdf (5027 kB, öppnas i nytt fönster)