Title
Graphene squeeze-film microphone
Author
Abrahams, Marnix (TU Delft Electrical Engineering, Mathematics and Computer Science; TU Delft Mechanical, Maritime and Materials Engineering)
Contributor
Steeneken, Peter (mentor)
Verbiest, Gerard (mentor)
Martinez Castaneda, Jorge (mentor)
Degree granting institution
Delft University of Technology
Programme
Electrical Engineering | Signals and Systems
Date
2020-05-06
Abstract
Within this research a nouvelle microphone design is posed, modelled and tested. The design consists of a cavity covered by a membrane and having a venting channel, it uses the squeeze-film effect in order to link pressure to the membranes resonance and by extension acoustics to the membranes resonance. In [1] the squeeze-film effect was first used in order to measure static pressures, an idea on which this research builds in order to use it to measure acoustic pressures and so create a new type of microphone.
The aim of this research is attaining a proof of concept and a preferably also model capable of accurately depicting the functionality of new designs. Proof of concept is given, as the first ever squeeze-film microphone is shown to functionally measure an acoustic chirp. Whether, the model created for and given in this research is truly capable of predicting a new designs functionality is as of yet unproven.
[1] R. Dolleman, Dynamics of interacting graphene membranes. PhD thesis, Technische universiteit Delft, 2018.
Subject
Graphene resonators
Squeeze-film effect
microphone
Squeeze-film microphone
Graphene
Squeeze-film
To reference this document use:
http://resolver.tudelft.nl/uuid:94ccd21a-8013-4fa0-9059-d9d9333aa824
Embargo date
2025-05-06
Part of collection
Student theses
Document type
master thesis
Rights
© 2020 Marnix Abrahams