PROPERTIES OF THE INFRARED DISPERSION FUNCTIONS OF ISOLATED RESONANCES.

Abstract

This is a computational study of the relationships between infrared reflection band properties and oscillator parameters as given by classical dispersion theory. It is limited to the case of frequency-independent damping, normal incidence, isolated resonances. A total of 81 parameter combinations are computed, of which the reflection bands of 42 are illustrated and the essential band properties of all are tabulated. The effects of the various parameters on band properties are discussed in detail and from this a prediction capability is developed. A method is devised for the converse operation of recovering oscillator parameters from band properties by graphical functions. Three examples are worked to demonstrate the method from which approximate values of the parameters accurate from 5 to 20% are obtained. These results provide the basis for an efficient approach to infrared dispersion analysis by computational curve fitting. (Author)

Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1969
Accession Number
AD0694518

Entities

People

  • Conrad M. Phillippi

Organizations

  • Air Force Research Laboratory

Tags

DTIC Thesaurus Topics

  • Curve Fitting
  • Dispersions
  • Frequency
  • Oscillators
  • Reflection
  • Resonance
  • Resonant Frequency

Readers

  • Finite Element Method (FEM) for solving Partial Differential Equations (PDEs)
  • Spectroscopy.
  • Systems Analysis and Design