COE - Depts - ECE - Faculty - Brown - New

David Brown, PhD

Professor

Center for Innovation & Entrepreneurship

Professor

Electrical & Computer Engineering

508-910-9852

508-999-9120

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Center for Innovation & Entrepreneurship, Fall River 123

508-999-8479

508-999-8489

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Dion 319D

Education

1991Naval Postgraduate SchoolPhD in Engineering Acoustics
1988Naval Postgraduate SchoolMS in Engineering Acoustics
1985University of Rhode IslandBS in Electrical Engineering

Teaching

Programs

Teaching

Courses

Production, propagation, and reception of underwater sound. Topics include plane, spherical and cylindrical wave propagation, transmission loss, normal mode theory, waveguides, ray acoustics, active and passive sonar equations, properties of transducers and arrays including transmit and receive sensitivity, beam patterns, directivity, spatial aperture functions and their Fourier transform pairs, equivalent electrical circuits, and calibration of underwater projectors and hydrophones.

Principles of oscillations, radiation, and propagation of waves in acoustics and elctromagnetics for bounded and unbounded media. Introduction to the derivation of the wave equation from Maxwell's equations in electromagnetics and vibration theory in acoustics and the application of the wave equation to wave propagation in SONAR and RADAR environments. Examples include acoustic and electromagnetic propagation in air and ocean environments, waveguides and optical fibers, transducers and antennas, radiation and reception of signals, dispersion, phase and group velocity, attenuation, reflection, refraction, and scattering.

Production, propagation, and reception of underwater sound. Topics include plane, spherical and cylindrical wave propagation, transmission loss, normal mode theory, waveguides, ray acoustics, active and passive sonar equations, properties of transducers and arrays including transmit and receive sensitivity, beam patterns, directivity, spatial aperture functions and their Fourier transform pairs, equivalent electrical circuits, and calibration of underwater projectors and hydrophones.

Research

Research Interests

  • Transducer modeling
  • Training of undergraduate and graduate students in engineering acoustics

David A. Brown, Professor, Dept. Electrical & Comp. Engineering and Adjunct in Physics and Mechanical Engineering at UMass Dartmouth. Prof. Brown obtained his MS and PhD in 1989/91 from the US Naval Postgraduate School (NPS) in Engineering Acoustics in Depts. of Physics and Electrical Engineering while working on optical fiber interferometric detection of underwater sound. He has more than three-decades of experience in the areas of Optical and Electrical Acoustics including transducer modeling and calibration of underwater sensors and sources. He has more than 200 papers, conference presentations and reports. He has taught specialized courses in fundamentals of acoustics, vibration and sound, underwater acoustics, electroacoustics, nonlinear acoustics, electromagnetics, fiber optics, and medical ultrasonic as faculty at UMass Dartmouth, Brown University, NUWC and the Naval Postgraduate School. Prof. Brown’s main interest is in preparing future scientists and engineers for the field of Acoustic Transduction, which has been identified as a Critical DoD Technology area by the Department of Commerce and DoD. He previously had ten years of experience working as an Acoustical Scientist/Engineer for Navy DoD (NPS and NUWC) as an expert in underwater acoustic transduction so is very aware of practical navy research and operational needs. He has secured funding >$4M which includes support for undergraduate and graduate MS/PhD students in navy related optics and acoustic problems. Dr. Brown was also involved in the founding, development and instrumentation of the university’s unique underwater acoustics/optics test facility (UWTF) and the creation of the ATMC/CIE Center for Advanced Technology and Manufacturing, now Innovation and Entrepreneurship. Dr. Brown was elected Fellow of the Acoustical Society of America (ASA) in 2013 in recognition for contributions to fiber-optic and piezoelectric transduction science, and leadership in acoustics education, and was a past Associate Editor for Acoustic Transduction, Acoustical Measurements, Instrumentation, and Applied Acoustics. He is a member of the three Technical Specialization Committees on Physical Acoustics, Engineering Acoustics, and Education in Acoustics for the ASA. He is also the President of the regional chapter of the ASA, the Southern New England (Narragansett) Chapter of the ASA society.

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