Lab. Instructor in Acoustics - 24h (Master Degree in applied
acoustics) :
Signal processing : Acquisition,
realisation of a spectral estimator, synchronous detection using Matlab.
Measurements of electrodynamic
loudspeaker characteristics (Thiele-Small parameters).
Measurements of waveguide
impedances (tube and solid bar).
Measurements of the reflexion
function for a tube (visualisation and acquisition of the signals, then impulse
responses calculated with Matlab).
Tutorial of Mechanics - 40h (DEUST 2nd degree) :
Kinematics of solids: velocity and acceleration fields.
Mass geometry - kinetics: inertia momentum.
Fondamental principles and theorems of dynamics: Newton's law, contacts and
mechanical links, statics of solids.
Energetic methods: potential and kinetic energies, Lagrangian technique.
Tutorial of Electronics, and ElectroAcoustics (DEUST 2nd degree) :
Electronics :
Study of circuits in analogical electronics (general theorems, transmission
lines, filters, Bode's representation)
Amplificators (fondamental circuits, limits)
Diodes
ElectroAcoustics :
Equivalent diagrams : electro-mechanical analogies, electro-acoustics analogies
Microphones (transduction principles, directivity, calibration)
Loudspeakers (principles, Thiele-Small's model)
Loudspeakers acoustic loads, realization of speakers, filtering
Loudspeakers and microphones charateristics measurements methods
Transmission lines, application to acoustic waveguides
Applications : artificial ear, characteristics measurements of a membrane, study
of the Helmholtz's resonator, bass-reflex speaker, ...
Lab. Instructor in Physical Acoustics - 80h (DEUST 2nd degree) :
Chladni's plates vibrations
(visualisation and study of the normal modes of a circular or square plate,
boundary conditions, mechanical or acoustical excitation, vibro-acoustic behaviors)
Ultrasonics (principal
sound propagation properties, sound speed and wavelength measurements, interferencies
study, reflexion, transmission, absorption, and attenuation coefficients measurements)
Non-destructive prospecting
by ultrasonics methods (materials defaults probe by reflected pulses train,
notion of impedance mismatch)
Ultrasonics propagation
in pulsed regime (sound speed measurements in air, in water and in materials,
attenuation coefficient measurement, impedance adaptation)
Illustration of acoustical
phenomena using Matlab (visualisation of normal modes in waveguides,
sources directivity, acoustical intensity, strings movements)
Architectural acoustics
(models, normal modes, reverberation time, influency of the source and the receptor
positions, room geometry, absorbing materials)
Lab. Instructor in Electronics, and ElectroAcoustics
- 48h (DEUST 2nd degree) :
Electrodynamic loudspeaker
at low frequencies, Thiele-Small's model
loudspeaker load at low
frequencies (baffled, closed, horns, bass-reflex)
Impedance compensation
on a loudspeaker
Passive filtering of a
speaker with two channels
Coupling "acoustic
source - system to measure", application to the frequency response measurement
of an Helmholtz's resonator
Comparison of two different
microphones (free field response and presure response)
Amplificator, filtering,
loop systems, active control of a loudspeaker
Acoustic velocity measurement
in a Kundt tube, application to transmission lines, influency of the microphone
response, impedance measurement for different endings
Lab. Instructor in Vibrations - 12h (DEUST 2nd degree) :
Study of the Doppler
effect by ultrasonic wave reflexion
Vibroacoustic study of
an air fan
Mechanic vibrations of
a machine
Study of the vibrations
of a beam (part I)
Study of the vibrations
of a beam (part II)
Electrodynamic loudpeaker
vibrations study
Tutorial of Physical Acoustics - 30h (DEUST 1st degree) :
Linear equations of acoustics, resolution of the propagation equation, reflexion
at the output of an open tube, reflexion of a plane wave on a rigid wall, reflexion
and transmission between two propagation middles in normal and oblic incidences,
spherical and cylindrical waves, acoustic intensity, acoustic propagation in
a tube with different endings, impedance calculus, dipolar and monopolar radiation,
transmission in a tube with different sections.
Tutorial of "Support" - 28h (DEUST 1st degree) :
Signal processing
Electromagnetism
Analogical electronics
Mathematics
ElectroAcoustics
Tutorial of Vibrations - 8h (DEUST 1st degree) :
Study of the harmonic oscillator with one or two degree of freedom, with
or without damping, forced or free. Energy conservation, Lagrange's equation.