An Adaptive Control Algorithm for Acquisition of Pneumatic Commutator Data

Abstract

This report describes and documents an adaptive control algorithm currently used in the Propulsion Wind Tunnel Transonic and Supersonic tunnels for the acquisition of steady-state pressure data using pneumatic commutators. The algorithm employs a classification process to determine whether or not data smoothing is required. If filtering is required, then a self-adjusting arithmetic averaging technique is used. Data obtained using the algorithms are acquired subject to both a settling criterion and a time constraint. The report contains a description of the basic instrumentation system and adaptive control algorithm.

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Document Details

Document Type
Technical Report
Publication Date
Nov 01, 1975
Accession Number
ADA018022

Entities

People

  • James L. Taylor
  • Robert G. Chapman
  • Thomas H. Clay

Organizations

  • Arnold Engineering Development Complex

Tags

Communities of Interest

  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Acquisition
  • Air Force
  • Algorithms
  • Arithmetic
  • Classification
  • Control Systems
  • Data Acquisition
  • Digital Data
  • Engineering
  • Filtration
  • Instrumentation
  • Measurement
  • Pressure Measurement
  • Static Pressure
  • Steady State
  • Test Facilities
  • Wind Tunnels

Readers

  • Adaptive Control and Estimation with Uncertainty in Dynamic Systems.
  • Fluid Dynamics.

Technology Areas

  • Hypersonics
  • Hypersonics - Hypersonic Flow