Engineering Commons^™

A Proposal For Two Computers Dealing With The Convolution Integral, Charles S. Williams Jr.

Electrical and Computer Engineering ETDs

The integral f(x) = g(x-y)h(Y)dy is known as a convolution integral. The first computer described herein will determine the function f when the functions g and h are known. The second computer will determine the function h when f and g are known; in using the second computer to find h, then the first computer is used for auxiliary computations.

A Study Of Servomechanism Damping Methods, Arthur J. Clark Jr.

Electrical and Computer Engineering ETDs

The purpose of this study is first to present a review of the general effects of damping, both Coulomb and Viscous, and feedback devices resulting in error rate damping: second to present detailed mathematical analyses of a number of special damping devices that may be used to advantage in servomechanism design.

Crossover Networks For Loudspeakers, Edward A. Brown

Electrical and Computer Engineering ETDs

No abstract provided.

A Variational Approach To The Calculation Of Electron Trajectories, Edmund G. Franzak

Electrical and Computer Engineering ETDs

It is the object of the present work to derive, develop, and illustrate a method for the calculation of electron trajectories based on variational techniques and employing scalar and vector potential functions instead of the customary intensity functions. The methods of the calculus of variations furnish an extremely basic approach to the problem while lending an undeniable air of rigor and mathematical elegance.

Solution of the problem will be accomplished by first setting forth a mathematical structure upon which the work will be based, next outlining the physical principles governing the problem and finally applying the mathematical theory and physical …

Design Of A Subsonic Wind Tunnel Electrical System, William A. Wundrack

Professional Degree Theses

"The purpose of this thesis is to present information and data used in the planning and construction of an electrical distribution system and main drive system for a wind tunnel designed for Chance Vought Aircraft Company of Dallas, Texas, by Sverdrup & Parcel, Incorporated, Consulting Engineers of St. Louis. Preliminary negotiations were started with Chance Vought Aircraft Company in March 1953, and the wind tunnel calibrations were started in October 1954. Between those dates all design, installation drawings, and construction were completed.

The data used in preparing this thesis were taken from daily records, records of conferences, personal records, correspondence …

Mechanical Vibration Of Vacuum Tubes, Jerry Dale Swearingen

Masters Theses

"Since the beginning of the art of vacuum tube building, vacuum tube engineers have been faced with many mechanical problems as well as electrical problems.

Early mechanical problems were comparatively small because most of the tubes were used in stationary apparatus where little or no vibration was envolved.

As time went on, vacuum tubes were placed in portable equipment and this useage established the need for a tube that was mechanically strong enough to give reliable electrical behavior where the tube was subjected to considerable vibration….

Recently it has been shown that vacuum tubes operating in the instrument cabins of …