The Use of Ultrasonics for Oleo Compression Measurements on a S-70B-2 (Seahawk) Helicopter

Abstract

Dynamic measurements were conducted to acquire data for the development of a mathematical model of the undercarriage of a S-70B-2 (Seahawk) helicopter. The principal measuring instrumentation consisted of LVDT's and ultrasonic transducers. This memorandum discusses a Ranging Ultrasonic Transducer which was developed to overcome the inherent and excessive recovery time delay of the ultrasonic transducers when subjected to out-of-range distance operations during the flight trials. S-70B helicopters, Ultrasonic wave transducers, Undercarriage, Flight tests, Mathematical models.

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Document Details

Document Type
Technical Report
Publication Date
Jul 01, 1992
Accession Number
ADA256315

Tags

Communities of Interest

  • Air Platforms
  • Ground and Sea Platforms
  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Aircrafts
  • Analog Signals
  • Data Acquisition
  • Department Of Defense
  • Detectors
  • Frequency
  • Fuselages
  • Helicopters
  • Instrumentation
  • Mathematical Models
  • Measurement
  • Ship Decks
  • Square Waves
  • Tail Wheels
  • Transducers
  • Ultrasounds
  • Waves

Readers

  • Aviation Safety and Air Traffic Management
  • Fluid Dynamics.
  • Military History