A ONE-DIMENSIONAL FOURIER ANALOGUE COMPUTER

Abstract

A computer (ODFAC) was constructed to sum Fourier series having up to 30 terms. The resolvers chosen for use in this computer enable an angle 0 to be transformed electrically into a trigonometric function. Each amplitude is set by a variac which regulates the input to a particular reoslver. The frequencies are arranged by gearing the rotors of the resolvers. The resultant individual currents are added in parallel. The value is read on a voltimeter and the phase is read on an oscilloscope. ODFAC cna perform the summation rapidly with an accuracy adequate for most purposes. The simplicity of design eliminates almost all electrical or mechanical failures. ODFAC can be used for double and triple summations by using standard trigonometric expansions.

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Document Details

Document Type
Technical Report
Publication Date
Jun 30, 1953
Accession Number
AD0017509

Entities

People

  • Leonid V. Azaroff
  • M. J. Buerger

Organizations

  • Massachusetts Institute of Technology

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Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Analog Computers
  • Computations
  • Computers
  • Computing Devices
  • Crystal Structure
  • Crystals
  • Drive Shafts
  • Fourier Series
  • Generators
  • Military Research
  • Motor Generators
  • Standards
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  • Two Dimensional
  • Voltage
  • Wiring Diagrams
  • X Rays

Readers

  • Calculus or Mathematical Analysis
  • Computer Science/Computer Engineering/Data Science/Digital Signal Processing.
  • Electrical Engineering