Comprehensive Machinery Monitoring with FFPI Sensors

Abstract

This paper introduces the benefits of applying the optical fiber Fabry-Perot interferometer (FFPI) pressure sensor as a means of detecting flow instabilities in centrifugal pumps and compressors. Actual pump test data will be presented, demonstrating how harmful hydraulic instabilities, such as cavitation and low flow instabilities, can be readily detected using this new sensor. The authors will explain how centrifugal compressors can be protected from surge by sensing flow reversals with an FFPI differential pressure sensor. Also covered is how the FFPI pressure sensors can be integrated into a complete FFPI monitoring system capable of sensing bearing housing vibration, shaft vibration, and shaft rotary speed.

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Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1996
Accession Number
ADP010225

Entities

People

  • Chung E. Lee
  • Henry F. Taylor
  • Robert A. Atkins
  • Robert X. Perez

Tags

Communities of Interest

  • Sensors

DTIC Thesaurus Topics

  • Bearings
  • Centrifugal Compressors
  • Centrifugal Pumps
  • Compressors
  • Control Systems
  • Detectors
  • Dynamic Pressure
  • Electronic Components
  • Fabry Perot Interferometers
  • Flow
  • Frequency
  • Laser Diodes
  • Mechanical Properties
  • Optical Fibers
  • Pressure Measurement
  • Semiconductors
  • Thrust Bearings

Fields of Study

  • Engineering

Readers

  • Control Systems Engineering.
  • Internal Combustion Engine (ICE) Technology.
  • Naval Engineering and Maritime Security