The notes contained in this page correspond to the delivery of ME413/513 during Spring Semester 2004. The content of ME413/513 changes slightly from semester to semester. Lecture notes from ME413/513 delivered Spring 2002 can be found here.

Introduction
• Session 1: Introduction, Complex Numbers
• Session 2: Using Complex Numbers to Solve Differential Equations
• Session 3: Mechanical, Electrical Impedance
• Session 4: Power Dissipation in Linear Systems
• Session 5: Electromagnetic Loudspeaker Drivers Note: On page 11, the formula s=rho*c^2*Sd/Vas should be s=rho*c^2*Sd^2/Vas. Specifications for 4.5" Full Range Driver

  Fundamentals of Acoustics in Fluids

• Session 6: Acoustic Variables
• Session 7: Derivation of the Wave Equation in Fluids
• Session 8: Fundamental Solution of the Wave Equation
• Session 9: Harmonic Plane Waves, Wavelength
• Session 10: Acoustic Velocity, Displacement and Density
• Session 11: Sound Pressure Measurement, Decibel Scales
• Session 12: Acoustic Intensity, Power, Spherical Waves. Note, on page 1, I=1.21 mW, not 2.41 mW.
• Session 13: Spherical Waves
• Session 14: Review for Exam I

  Sound Measurement and Weighting Scales

• Session 15: Physics of Sound Measurement
• Session 16: Measurement Microphones, Cal Chart for BK4133 Mic, Cal Chart for BK4134 Mic, Cal Chart for BK4138 Mic, Cal Chart for ACO7016 Mic, Free-Field Correction Factors.
• Session 17: Weighting Scales, Formula for A-Weight

  Reflection and Transmission at an Interface

• Session 18: Normal Incidence to a Fluid Boundary
• Session 19: Transmission Through a Layer at Normal Incidence, Transmission at Normal Incidence

  Sources of Sound

• Session 20: Monopole Sources
• Session 21: Source Strength and Simple Sources
• Session 22: Dipoles
• Session 23: Method of Images, Plane Piston Near/Far Field
• Session 24: Plane Piston Far-Field Approximation
• Session 25: Plane Piston, Numerical Examples and Field Summary
• Session 26: Plane Piston Radiation Impedance, Suggested Functions for Computing Radiation Impedance, Suggested Functions for Computing Radiation Impedance (MathCAD V7),
• Session 27: Plane Piston Radiation Impedance, Review for Exam II
• Session 28: Review for Exam II Cont'd

  Pipes and Helmholtz Resonators

• Session 29: Rigidly Terminated Pipe
• Session 30: Reflection/Transmission, Area Change
• Session 31: Impedance Transfer Formula, Low Pass Section, Low Pass Example Calculation
• Session 32: Open Pipe Impedance, Low Pass Into Open Pipe, Open Pipe/Low Pass Example Calculations
• Session 33: Branch, Bandstop Filters, Example Branch Calculations
• Session 34: Helmholtz Resonators
• Session 35: Helmholtz Resonator Applications (Low-Pass, Bandstop Filters)
• Session 36: Helmholtz Resonator Applications (Sealed Cabinet Loudspeaker Design) Note: The numerator in the first equation on slide 36/4 should be (jw), not (jw)^2.
• Session 37: Helmholtz Resonator Applications (Vented Cabinet Loudspeaker Design), Notes on Design of Vented Cabinets
• Session 38: Review for Exam III

  Piezoelectric Transducers

• Session 39: Constitutive Laws for Piezoelectric Materials
• Session 40: Three-Port Model for Thin-Disk Transducer
• Session 41: Three-Port Model cont'd, Three-Port Model of Piezoelectric Transducer, (MathCAD V7)