Graphite-Epoxy Motor Casing Health Monitoring System Demonstration

Abstract

A prototype Multiparameter Sensor System is described for detection, localization, and magnitude determination of impacts as well as environmental condition monitoring of graphite epoxy composite structures. This system is applied to a test sample of a Delta-II solid rocket motor Graphite Epoxy Motor (GEM) casing. Impact detection and localization is performed with a Fiber Optic Bragg strain sensor, while 3-axis acceleration, temperature, pressure and humidity are sampled with Microelectromechanical (MEMS) sensors. All sensors are sampled with a National Instruments, Inc. data acquisition PCMCIA card, processed on a Pentium-II 200-MHz laptop. Sensor information is passed wirelessly to a remote user terminal for display and data storage. Acquisition and display software was written in LabView with custom codes developed for impact localization.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1999
Accession Number
ADA372112

Entities

People

  • Bonnie R. Brown
  • Brett A. Williams
  • C. M. Klimcak
  • J. V. Osborn
  • Y. C. Chan

Organizations

  • The Aerospace Corporation

Tags

Communities of Interest

  • Advanced Electronics
  • Sensors
  • Weapons Technologies

DTIC Thesaurus Topics

  • Acquisition
  • Air Force
  • Bragg Gratings
  • Communication Networks
  • Composite Materials
  • Computers
  • Data Acquisition
  • Data Displays
  • Detection
  • Detectors
  • Graphitic Materials
  • Laptop Computers
  • Materials
  • Measurement
  • Microelectromechanical Systems
  • Three Dimensional
  • Wireless Networks

Fields of Study

  • Physics

Readers

  • Computer Science/Computer Engineering/Data Science/Digital Signal Processing.
  • Reinforced Composite Materials
  • Sensor Fusion and Tracking Systems.

Technology Areas

  • Microelectronics
  • Microelectronics - Microelectromechanical Systems