AN ASSESSMENT OF THE ACCURACY OF MEASUREMENT OF GYRO WANDER RATE ON THE BLACK KNIGHT STABILIZED PLATFORM UNDER PRE-LAUNCH CONDITIONS

Abstract

An assessment is given of the accuracy with which the gyro wander rates, due to mass unbalance and ligament torques, can be measured with the Black Knight stabilized platform on the launcher. The gyro wander rates are determined from measurements of gyro torque motor current which ARE TAKEN WITH THE PLATFORM SERVOED TO A FIXED SET OF EARTH AXES. The main sources of error are examined in detail and their over-all effect on the accuracy of the wander rate measurements is derived. A further indication of the accuracy possible on the launcher has been obtained by taking a number of measurements on a stabilized platform in the laboratory. The theoretical assessment of accuracy showed that gyro wander rate could be measured with standard deviation of uncertainty of better than 0.03 deg/hr. Measurements taken in the laboratory gave a similar value of uncertainty.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1960
Accession Number
AD0323742

Entities

People

  • G. E. Beltrame

Organizations

  • Royal Aircraft Establishment

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Abstracts
  • Accelerometers
  • Accuracy
  • Angular Acceleration
  • Calibration
  • Distribution Curves
  • Frequency
  • Gravitational Fields
  • Line Of Sight
  • Manufacturing
  • Measurement
  • Misalignment
  • Orientation (Direction)
  • Platforms
  • Specifications
  • Stabilized Platforms
  • Standards

Readers

  • Computational Modeling and Simulation
  • Control Systems Engineering.
  • Inertial Navigation Systems.