Accession Number : AD0675043

Title :   A SIMPLE GRAPHICAL METHOD FOR DETERMINING THE FREQUENCY RESPONSE FUNCTIONS OF A SERVO SYSTEM.

Descriptive Note : Memorandum rept.,

Corporate Author : NAVAL RESEARCH LAB WASHINGTON D C

Personal Author(s) : Cross,David C. ; Howard,Dean D.

Report Date : MAY 1968

Pagination or Media Count : 28

Abstract : A graphical technique is described for obtaining the transfer characteristic, including phase, of a circuit or servo system from a time plot of the response to a unit step. The technique provides high accuracy in a few minutes of time using a graphical harmonic analyzer. In even less time the major features such as overshoot may be determined. Although computers have been programmed for this analysis, this technique can be performed with simple equipment that can readily be taken into the field to obtain on-the-spot analysis within the time that would have been required to read sufficient data points for a computer analysis. (Author)

Descriptors :   (*SERVOMECHANISMS, RESPONSE), HARMONIC ANALYSIS, FREQUENCY, ANALOG SYSTEMS, TRANSFER FUNCTIONS, INTEGRAL TRANSFORMS, TIME, HARMONIC ANALYZERS, COSTS, ACCURACY, COMPATIBILITY, MOBILE, DIGITAL COMPUTERS

Subject Categories : Electrical and Electronic Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE