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Dissertations / Theses on the topic 'Vibrations measurement'

Author: Grafiati

Published: 28 June 2021

Last updated: 17 February 2022

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1

Empie, Laurel E. "Measuring and interpreting civil engineering vibrations." Thesis, Georgia Institute of Technology, 1997. http://hdl.handle.net/1853/21430.

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Kang, Ma Ru. "Measurement of Vibrations of Gears Supported by Compliant Shafts." The Ohio State University, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=osu1253021230.

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3

Lin, Shawn Hsien Fan. "A laser interferometer for measurement of surface vibrations and ultrasound." Thesis, Georgia Institute of Technology, 1997. http://hdl.handle.net/1853/15985.

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4

Pugh, Alan James. "An optical displacement monitor for the measurement of low frequency vibrations." Thesis, University of Exeter, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.335511.

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5

McMahon, Kim J. "Whole-body vibration comfort measurement aboard the S. A. Agulhas II and just noticeable difference threshold testing in the laboratory." Thesis, Stellenbosch : Stellenbosch University, 2014. http://hdl.handle.net/10019.1/95938.

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Thesis (MEng) -- Stellenbosch University, 2014.<br>ENGLISH ABSTRACT: A continuous comfort analysis of the whole-body vibration level aboard the S.A. Agulhas II during the 2013-2014 Antarctic voyage was conducted ac- cording BS ISO 2631-1:1997, assuming a standing posture. Just noticeable difference in magnitude testing was conducted on nine subject in the standing posture on a man-rated shaker in the laboratory environment. Two stimuli, a 5 Hz sinusoidal stimulus with a magnitude of 0,5 m.s-2 and a slamming event recoded during the voyage with a magnitude of 0,2 m.s-2 where selected as

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6

Carson, Gillian. "Particle sizing using hertz-zener theory and ultrasonic measurement of impact vibrations." Thesis, University of Strathclyde, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.488858.

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In this thesis a theoretical model that describes particles impacting with a circular plate, the resulting flexural vibrations of the plate, and its detection by an ultrasonic transducer, is described. Using a variety of approximations, an analytic expression for the plate vibrations is derived. This is then expressed as a Fourier series and an analytic expression for the frequency of the first main peak of the spectrum is obtained.

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7

Yang, Ming. "Development and analysis of a multiple beam laser system for measurement of surface vibrations." Diss., Georgia Institute of Technology, 1996. http://hdl.handle.net/1853/17685.

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8

Monnot, Olivier. "Recalage de modèles dynamiques à partir de la réponse en fréquence : application au recalage des modèles du lanceur Ariane 5." Châtenay-Malabry, Ecole centrale de Paris, 1995. http://www.theses.fr/1995ECAP0407.

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Le contexte général du recalage de modèle à partir d'essais vibratoires est présenté dans le premier chapitre. En particulier, les critères usuels pour confronter modes calcules et modes mesures sont décrits. Dans une seconde partie, un recensement des méthodes de recalage déjà existantes est effectué. On distingue ainsi les méthodes de correction globale de celles basées sur le contrôle paramétrique du modèle. Ces dernières reposent sur trois idées différentes : les techniques de sensibilité, l'évaluation des forces résiduelles dans les équations d'équilibre, l'analyse des erreurs en relation

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9

Liu, Zhao. "Modeling and measurement of the effects of atmospheric turbulence and platform vibrations on laser communication." Diss., Online access via UMI:, 2009.

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Thesis (M.S.)--State University of New York at Binghamton, Thomas J. Watson School of Engineering and Applied Science, Department of Electrical and Computer Engineering, 2009.<br>Includes bibliographical references.

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10

Soal, Keith Ian. "Vibration response of the polar supply and research vessel the S. A. Agulhas II in Antarctica and the Southern ocean." Thesis, Stellenbosch : Stellenbosch University, 2014. http://hdl.handle.net/10019.1/96058.

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Thesis (MEng) -- Stellenbosch University, 2014.<br>ENGLISH ABSTRACT: Full scale measurements were conducted on the polar supply and research vessel the S.A. Agulhas II during a 78 day voyage from Cape Town to Antarctica in 2013/2014. Investigations were conducted into the effect of vibration on human comfort and the structural dynamic response of the vessel. Vibration measured in the bridge of the vessel is found to have little effect on human comfort for a standing person and is classified as not uncomfortable according to BS ISO 2631-1. Structural fatigue as a result of vibration is fo

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11

Sica, G. "Groundborne vibrations caused by railway construction and operation in buildings : design, implementation and analysis of measurement for assessment of human exposure." Thesis, University of Salford, 2014. http://usir.salford.ac.uk/32832/.

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Environmental issues surrounding railway operation and construction have become more prominent in recent years, increasing the need for administrators and researchers to understand how residents living around railways respond to the noise and vibration generated by them. Within this context, the University of Salford, within the project funded by Defra “Human response to vibration in residential environments” (NANR209), has derived exposure response relationships for railway traffic and construction for a population sample of 1281 people: 931 for railway traffic and 350 for railway constructio

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12

Fučík, Ondřej. "Návrh opatření pro snížení hluku Rootsova dmychadla." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2021. http://www.nusl.cz/ntk/nusl-443883.

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The Master‘s thesis deals with issues of noise and vibrations of Roots blowers. In the theoretical part, potential sources of noise and vibrations are described. Detailed knowledge of basic types of mufflers is summarized, and their suitability for the corresponding application is evaluated. The practical part is focused on performing experimental measurements of the Roots blower’s noise and vibrations and the main sources of noise are determined. Subsequently, the existing anti-noise measures are analyzed and the proposal for adjusting the current measures for further noise reduction is prese

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13

Moine, Pascal. "Recalage de modèles éléments finis avec amortissement." Châtenay-Malabry, Ecole centrale de Paris, 1997. http://www.theses.fr/1997ECAP0537.

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Cette thèse est consacrée au recalage de modèles éléments finis avec amortissement visqueux non proportionnel sur les caractéristiques modales des structures modélisées. Le document est scindé en trois parties. - la première partie consiste en un rappel succinct des différents types d'amortissement couramment utilisés, un exposé de la problématique du recalage et une présentation des méthodes de recalage disponibles. - la seconde partie rassemble les nouveaux développements réalisés par l'auteur. Trois méthodes de recalage de modèles sur les caractéristiques modales des structures correspondan

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14

Weiss, Lukáš. "Návrh ovládacího zařízení pro vibrografické měření." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2015. http://www.nusl.cz/ntk/nusl-221087.

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This diploma thesis deals with designing of the control device for vibrographic measurement. The device is primary used in cooperation with MERCURY Real Time Tracking System. The main task of the device is time-controlled triggering of camera system. In the first step, the summary of basic information about technical diagnostic and vibrodiagnostic is reported. The second part describes vibrodiagnostic measurements with MERCURY system. The third part describes a hardware design of the device and functional blocks and its parameters. Next part provides a simple algorithm of the device operation

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15

Meruani, Azeem. "Tweel (TM) technology tires for wheelchairs and instrumentation for measuring everyday wheeled mobility." Thesis, Available online, Georgia Institute of Technology, 2007, 2007. http://etd.gatech.edu/theses/available/etd-04032007-174305/.

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Vukušičová, Daniela. "Analýza dynamických účinků působících na železniční výhybky." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2017. http://www.nusl.cz/ntk/nusl-265636.

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This thesis is focused on measurement and analysis of dynamic effects on railway turnouts. Two same-type turnouts with different fastening elasticity were chosen. My attention was focused mainly on the crossing part of the turnout, where the highest dynamic impacts occur. The point of the thesis is comparison of the crossing part of turnouts in term of dynamic behaviour and assessment of influence of soft rail pads on spread of dynamic energy through the construction. A part of the thesis is choice of methodology of the measurement and proposal of convenient mathematical apparatus for analysin

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17

Maigrot, Philéas. "Compréhension des mécanismes perceptifs associés à la gêne due aux bruit et vibrations du trafic ferroviaire en zone urbaine." Thesis, Lyon, 2019. http://www.theses.fr/2019LYSEI051.

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La co-exposition au bruit et aux vibrations est source de gêne pour les riverains et peut engendrer des troubles de la santé. L’objectif de la thèse est d’apporter des éléments de compréhension au regard des phénomènes perceptifs mis en jeux lors de l’exposition combinée au bruit et aux vibrations ferroviaires. Des expériences sont menées dans ce but, en conditions contrôlées et à l'aide d'enregistrements acoustiques et vibratoires réalisés à proximité d'une voie ferrée, à l'intérieur d'un logement. Une première étude a été réalisée afin de valider un protocole expérimental permettant de recue

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18

Janoušek, Michal. "Virtuální prototypy hnacích ústrojí." Doctoral thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2016. http://www.nusl.cz/ntk/nusl-263346.

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The thesis deals with computational modelling of heavy duty off-road vehicle driveline components. The thesis is divided to two main parts. The first part deals about modal analysis of selected driveline components. MBS computational study was performed based on modal analysis results. The second part of thesis deals with experimental verification of computational model. Pass-by noise and vibration measurement was performed. Measured signals were processed in frequency domain to find noise and vibration sources.

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19

Xiao, Xinghua. "Vibration measurement using videogrammetric method /." View abstract or full-text, 2009. http://library.ust.hk/cgi/db/thesis.pl?CIVL%202009%20XIAO.

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20

Rozsypal, Filip. "Senzor na bázi optovláknového interferometru." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2019. http://www.nusl.cz/ntk/nusl-400895.

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This diploma thesis deals with comparsion of 2x2 and 3x3 couplers. There is also description of issue of the Michelson interferometer and its use as a sensor. This sensor is very good at detecting vibrations. Part of the work is description of simulation of Michelson interferometer with 3x3 coupler as vibration sensor and localization of vibration on optical fiber by Michelson and Mach-Zehnder interferometer.

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Cinarel, Dilara. "Vibration Isolation Of Inertial Measurement Unit." Master's thesis, METU, 2012. http://etd.lib.metu.edu.tr/upload/12614069/index.pdf.

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Sensitive devices are affected by extreme vibration excitations during operation so require isolation from high levels of vibration excitations. When these excitation characteristics of the devices are well known, the vibration isolation can be achieved accurately. However, it is possible to have expected profile information of the excitations with respect to frequency. Therefore, it is practical and useful to implement this information in the design process for vibration isolation. In this thesis, passive vibration isolation technique is examined and a computer code is developed which would

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22

Donarski, Robert J. "Bone fracture measurement using mechanical vibration." Thesis, University of Kent, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.256998.

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23

Lam, Frank C. F. "Analytical and experimental studies of the behaviour of equipment vibration isolators under seismic conditions." Thesis, University of British Columbia, 1985. http://hdl.handle.net/2429/25110.

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Analytical and experimental studies of the behaviour of equipment vibration isolators under seismic conditions are presented. A preliminary parametric study of the effect of equipment-structure interaction on the ultimate equipment response of general equipment-structure systems is considered first. The results of this study indicate the conditions under which a non-interactive approach can yield adequate ultimate equipment response estimates. A model of a prototype air handling unit mounted on vibration isolators was constructed for use in the experimental studies. Two types of vibration is

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24

Mignosi, Christine. "Non-contact optical sensing for vibration measurement." Thesis, University of Bristol, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.341505.

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Chen, Justin Gejune. "Video camera-based vibration measurement of infrastructure." Thesis, Massachusetts Institute of Technology, 2016. http://hdl.handle.net/1721.1/104119.

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Thesis: Ph. D., Massachusetts Institute of Technology, Department of Civil and Environmental Engineering, 2016.<br>This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.<br>Cataloged from student-submitted PDF version of thesis.<br>Includes bibliographical references (pages 257-266).<br>Functional infrastructure-including transportation, energy, and buildings and other facilities - is key to the economic production of a country and the daily lives of its people. Due to deterioration and potential damage

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26

Perez, Hugo. "New Measurement Methods For Ground Vibration Test." Thesis, KTH, Flygdynamik, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-276465.

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Flight-testing represents an important step of an airplane development. Every new or modified aircraft configuration is tested. Through set of tests, the quality and reliability of aircrafts are guaranteed. At Dassault Aviation, the flight test Directorate responsible for carrying out flight tests is located at Istres, in South of France. One major test before flying is the Ground Vibration Test (GVT). The aim of this test is to measure Eigen frequencies and mode shapes of the structure. Those results are after compared to the ones given by the finite element model in order to verify it or upd

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27

Kaplan, Shaun. "A wireless sensor network for vibration measurement." Master's thesis, University of Cape Town, 2011. http://hdl.handle.net/11427/11424.

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Wireless sensor networks (sensornets) enable distributed sensing, opening up sensing possibilities not previously available. One application of sensornets is online, non-intrusive power transformer monitoring.

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28

Cunha, Irlon de Ângelo da. "Exposição ocupacional à vibração em mãos e braços em marmorarias no município de São Paulo: proposição de procedimento alternativo de medição." Universidade de São Paulo, 2006. http://www.teses.usp.br/teses/disponiveis/3/3134/tde-10042007-000855/.

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No Brasil, como em outros países, podem ser encontrados milhões de trabalhadores com distúrbios e problemas resultantes da exposição ocupacional a vibrações mecânicas. No entanto, são escassos, os estudos e as pesquisas voltados a esse agente, seja com relação ao seu reconhecimento, à sua avaliação ou ao seu controle. Neste trabalho estimou-se a exposição ocupacional a vibrações em mãos e braços dos trabalhadores que atuam nas atividades de acabamento, em marmorarias no município de São Paulo. Os principais critérios técnicos internacionais relacionados ao agente, sua aplicação e interpretação

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29

Engelbrecht, André. "Structural integrity monitoring using vibration measurements." Pretoria : [s.n.], 2006. http://upetd.up.ac.za/thesis/available/etd-07032006-122342/.

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30

Clement, Pierre. "Solutions aux limites des interrogateurs B-OTDR pour la surveillance d'infrastructures : augmentation de la portée de mesure et décorrélation des paramètres de température et de déformation." Electronic Thesis or Diss., Institut polytechnique de Paris, 2020. http://www.theses.fr/2020IPPAT042.

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Cette thèse porte sur l’étude des systèmes de mesure répartie de la rétrodiffusion Brillouin dans une fibre optique, que l’on nomme B-OTDR et qui sont sensibles à la température et à la déformation de la fibre. Les solutions d'interrogateurs actuelles permettent l'instrumentation de grandes infrastructures. Cependant, il existe des limites, inhérentes au phénomène physique utilisé, qui ne permettent pas d'adresser certaines applications spécifiques. Ces limites portent sur la distance de mesure maximale accessible par ces interrogateurs mais également sur la décorrélation de la mesure des para

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31

沖津, 昭慶, Akiyoshi Okitsu, 秀幸畔上 та ін. "振動インテンシティ計測法の基礎的検討". 日本機械学会, 1990. http://hdl.handle.net/2237/7230.

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32

Jones, Janeen Ayana. "Modal analysis on a stiffened panel : an application of laser vibrometry." Thesis, Georgia Institute of Technology, 1998. http://hdl.handle.net/1853/16397.

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33

Jamasbi, Nooshin. "Detection of the Resonant Vibration of the Cellular Membrane Using Femtosecond Laser Pulses." Thesis, University of North Texas, 1989. https://digital.library.unt.edu/ark:/67531/metadc331235/.

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An optical detection technique is developed to detect and measure the resonant vibration of the cellular membrane. Biological membranes are active components of living cells and play a complex and dynamic role in life processes. They are believed to have oscillation modes of frequencies in the range of 1 to 1000 GHz. To measure such a high-frequency vibration, a linear laser cavity is designed to produce a train of femtosecond pulses of adjustable repetition rate. The method is then directly applied to liposomes, "artificial membrane", stained with a liphophilic potential sensitive dye. The sp

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34

Birch, David James. "Impulsive vibration measurement for rolling bearing condition assessment." Thesis, University of Manchester, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.635645.

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Rolling element bearings, an essential part of virtually all rotating machinery, fail unpredictably. Systems to measure bearing condition are therefore essential to avoid the financial and human consequences of bearing failure. An impulsive vibration condition monitoring technique known as shock pulse measurement has been used commercially for over thirty years. Its success is well documented yet it is based purely on empirical evidence. No attempt to understand the theory behind it was academically published until the work of Ho (1998). This research extends Ho's work to better understand the

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Rothberg, Steven Joseph. "Laser speckle studies for vibration and torque measurement." Thesis, University of Southampton, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.241481.

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36

Hunt, Hugh Edmund Murray. "Measurement and modelling of traffic-induced ground vibration." Thesis, University of Cambridge, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.292999.

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37

Braun, Jeremy Thomas 1980. "A distributed data acquisition network for vibration measurement." Thesis, Massachusetts Institute of Technology, 2003. http://hdl.handle.net/1721.1/87382.

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Thesis (M.Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2003.<br>Includes bibliographical references (leaves 107-108).<br>by Jeremy Thomas Braun.<br>M.Eng.

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38

Yang, Jiansheng. "Vision-based measurement for combustion and vibration studies." Thesis, University of Sheffield, 2016. http://etheses.whiterose.ac.uk/11650/.

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Vision-based measurement as a useful tool has been applied successfully in many applications. The aim of this thesis is to apply vision-based measurement in both combustion and vibration studies. The purpose is to process and analyse the recorded light information for understanding combustion and vibration conditions. The chemiluminescence emission from a flame contains fundamental information on combustion, and the reflected light from an object’s surface can also provide information on the condition of the measured object. These types of information can be recorded quantitatively into images

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39

Langston, Paul Wesley. "Implementation and evaluation of a two-dimensional laser doppler vibrometer system for non-contact monitoring of external stress loading of aluminum samples." Thesis, Georgia Institute of Technology, 2009. http://hdl.handle.net/1853/33808.

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This thesis details the development and validation of a laser Doppler vibrometer-based measurement system that is capable of quantifying not only the normal vibration of a solid body but also the component of vibration that is parallel to the plane containing the surface of interest. LDV manufacturers produce various devices that capture 3D measurements in a beam configuration that can be used to decompose the measured signals into not only the normal velocity of the surface of an object but also two orthogonal in-plane components of the vibration. It was a slightly simplified two-dimensional

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Aydogan, Mustafa Ozgur. "Damage Detection In Structures Using Vibration Measurements." Master's thesis, METU, 2003. http://etd.lib.metu.edu.tr/upload/1058809/index.pdf.

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Cracks often exist in structural members that are exposed to repeated loading, which will certainly lower the structural integrity. A crack on a structural member introduces a local flexibility which is a function of the crack depth and location. This may cause nonlinear dynamic response of the structure. In this thesis, a new method is suggested to detect and locate a crack in a structural component. The method is based on the fact that nonlinear response of a structure with a crack will be a function of the crack location and crack magnitude. The method suggested is the extension of a recent

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Granberg, Alexandra, and Häggstam Manfred. "FE-modellering av håldäcksbjälklag för dynamisk analys : Jämförelse med fältmätningar." Thesis, KTH, Bro- och stålbyggnad, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-148017.

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Det byggs mer och mer med prefabricerade håldäcksbjälklag vilka har stora dimensionerings och produktionsfördelar. Långa spännvidder och lätta bjälklag gör denna typ av konstruktion känslig för vibrationer och därför ställs konstruktörer idag inför en problematik som inte tidigare vanligtvis varit en dimensionerande faktor. Som en naturlig följd av detta är kunskapen inom området begränsad och förståelsen för denna typ av konstruktion vid dynamiska problem eftersatt. Hur håldäcksbjälklag beter sig vid små dynamiska laster, från mänsklig aktivitet på bjälklaget, och hur denna typ av problematik

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Rubenstein, Stephen P. "An experiment in state-space vibration control of steady disturbances on a simply-supported plate." Thesis, This resource online, 1991. http://scholar.lib.vt.edu/theses/available/etd-03172010-020629/.

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Bell, John R. "Application of laser doppler velocimetry to rotor vibration measurement." Thesis, Loughborough University, 2001. https://dspace.lboro.ac.uk/2134/7563.

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Vibration measurement is of fundamental importance in many machinery applications including for the development and monitoring of rotating machinery. In such applications, measurement of the vibration transmitted from the rotor into a non-rotating part of the structure is the most common arrangement but this cannot always be relied upon because vibration transmission may be low. In such cases, the use of a non-contacting vibration transducer capable of measuring vibration directly from the rotor itself is desirable. Laser Doppler Velocimetry (LDV) is a non-contacting vibration technique capabl

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Lo, Kam Tong. "Measurement and modelling of vibration transmission through piled foundations." Thesis, University of Cambridge, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.339629.

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Bisht, Saurabh Singh. "Vibration Measurement Based Damage Identification for Structural Health Monitoring." Diss., Virginia Tech, 2010. http://hdl.handle.net/10919/77301.

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The focus of this research is on the development of vibration response-based damage detection in civil engineering structures. Modal parameter-based and model identification-based approaches have been considered. In the modal parameter-based approach, the flexibility and curvature flexibility matrices of the structure are used to identify the damage. It is shown that changes in these matrices can be related to changes in stiffness values of individual structural members. Using this relationship, a method is proposed to solve for the change in stiffness values. The application of this approach

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Di, Maio Dario. "SLDV technology for measurement of mistuned bladed disc vibration." Thesis, Imperial College London, 2008. http://hdl.handle.net/10044/1/1299.

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Bladed discs are very sensitive structures and the amplitude vibration of each blade can vary significantly from blade to blade due to a series of factors such as geometrical inhomogeneity between blades or material properties. These factors lead to bladed disks mistuned thus the forced response amplitudes can be much higher than the level predicted for a tuned assembly. Designed models need to be “validate” to predict the response of a real bladed disc within the tolerances set by the manufactures and this process is very expensive as well as difficult. The validation process needs “reference

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Walter, Patrick L. "OPTIMIZING FLIGHT SHOCK AND VIBRATION MEASUREMENT BY RF LINKS." International Foundation for Telemetering, 1998. http://hdl.handle.net/10150/609222.

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International Telemetering Conference Proceedings / October 26-29, 1998 / Town & Country Resort Hotel and Convention Center, San Diego, California<br>Acquiring shock and vibration data from flight vehicles through rf telemetry links has numerous associated challenges. Yet, these measurements are important to establish environmental specifications to provide a basis for system or component design and testing. The principal limitation in acquiring these measurements is the frequency bandwidth available for data transmission. This limited bandwidth is often responsible for invalid data being acce

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Chan, Alfred. "Vocal fold vibration measurements using laser Doppler vibrometry." Thesis, McGill University, 2012. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=106574.

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The objective of this study was to measure the velocity of the superior surface of human vocal folds during phonation using laser Doppler vibrometry (LDV). A custom-made endoscopic laser beam deflection unit was designed and fabricated. An in vivo clinical experimental procedure was developed and performed at the Montreal General Hospital Voice Laboratory in order to simultaneously collect velocity data from the LDV and video from endoscopy. The velocity along the direction of the laser beam, ie. the inferior-superior direction, was captured and found to be synchronous with electroglottograph

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He, Zinan. "Vibration measurements on the widely exposed gerbil eardrum." Thesis, McGill University, 2012. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=107722.

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Abstract:

Hearing loss is one of the most common birth defects. Early identification of hearing loss is very important because even a mild hearing loss can seriously delay language development and compromise communication, educational and social capabilities. Tympanometry is a promising tool to identify conductive hearing loss through examining the eardrum responses. However, current clinical results are unsatisfactory due to our inadequate knowledge of the complex mechanics of the middle ear. The vibration pattern of the eardrum is a critical factor for understanding tympanometry and the underlying sou

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Martarelli, Milena. "Exploiting the laser scanning facility for vibration measurements." Thesis, Imperial College London, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.248035.

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