Loudspeaker measurement: Thiele Small parameters

Beskrivelse

In loudspeaker design and production control, it is desired to extract small scale parameters (named Thiele Small parameters) from the impedance curves. One or more methods for extracting small scale parameters are to be implemented in our measurement software and tested against other measurement systems. The traditional method is to perform two measurements, one of which extra mass is attached to the loudspeaker cone. This traditional method is to be implemented, Matlab code is available.

Methods that are simpler for the user than the added mass method should be investigated. The goal is to find, test and implement a method that is so fast that it can be used in production line loudspeaker testing. Adding extra mass can be avoided if the velocity of the loudspeaker is measured. It should be investigated if a simple laser-based system for this or if it is sufficient to measure the particle velocity very near the loudspeaker. The particle velocity can be measured using a two-microphone probe.

This work could be done in collaboration with one or more loudspeaker companies that already use our measurement system so some traveling may be required.

elektronikk teleteknikk automatiseringsteknikk

Søknadsfrist

Dato:

30.10.2010

Oppgaveinfo

Type:

Bachelorprosjekt

Type:

Masterprosjekt

Type:

Semesteroppgave

Type:

Sommerjobb

Fagområde(r):

Ingeniør / Sivilingeniør

Fagområde(r):

IT / Informasjonsteknologi

Fagområde(r):

Realfag

Land:

Norge

Ønskes utført i:

Sør-Trøndelag

Antall studenter:

Åpent

Arbeidsplass:

Stiller med arbeidsplass i prosjektperioden

Konfidensialitet:

Krav til konfidensialitet kan bli stilt.

Kontaktinfo

Virksomhet:

Morset Sound Development

Legg inn søknad