Investigation of Fast Reaction SAW (Surface Acoustic Wave) Accelerometer

Abstract

The objective is to develp SAW accelerometers with improved bias stability characteristics for moderately accurate inertial navigation. Methods of fabricating dual-resonator crystals with low absolute and differential aging characteristics have been developed. Tests have been performed at 10 Gs acceleration on integrated noise levels for simulated guidance system mission times up to 20 min. Error rates less than 15 meters per hour in position of accuracy and velocity error less than 0.013 m/s have been achieved. Sensor device has a frequency stability of part in 10 to the 10th power with a dynamic range of 1,000,000. Simulation shows a bit quantization of 13/100m/s and frequency scale factor of 770 Hz/m/sq m can be achieved.

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 1985
Accession Number
ADA153876

Entities

People

  • M. E. Motamedi

Tags

Communities of Interest

  • Advanced Electronics
  • Energy and Power Technologies
  • Sensors
  • Weapons Technologies

DTIC Thesaurus Topics

  • Acoustic Waves
  • Circuits
  • Electronic Circuits
  • Electronics
  • Fabrication
  • Frequency
  • Frequency Shift
  • Guidance
  • Inertial Navigation
  • Materials
  • Navigation
  • Phase Shift
  • Resonators
  • Surface Acoustic Wave Devices
  • Surface Acoustic Waves
  • Transducers
  • Transmission Lines

Fields of Study

  • Physics

Readers

  • Atmospheric Science / Meteorology, specifically Wind Wave Turbulence.
  • Inertial Navigation Systems.