A Self-Consistent and Direct Reading Laser Homodyne Measurement Technique.

Abstract

The memorandum describes a new experimental procedure for measuring sinusoidal vibration displacement amplitudes by means of a laser homodyne system. Advantages that include a self-checking feature to validate the measurement and a direct readout capability are discussed. Unambiguous displacement amplitude measurements for amplitude values greater than the optical wavelength employed are also shown to be possible. With a calibrated system, rotational vibration amplitudes can be measured. (Author)

Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1972
Accession Number
AD0752744

Entities

People

  • B. J. Pernick

Organizations

  • Grumman

Tags

DTIC Thesaurus Topics

  • Amplitude
  • Displacement
  • Intensity
  • Measurement
  • Vibration

Fields of Study

  • Physics

Readers

  • Acoustics.
  • Computer Science/Computer Engineering/Data Science/Digital Signal Processing.
  • Optical Physics and Photonics.

Technology Areas

  • Directed Energy
  • Directed Energy - Lasers