Accession Number : ADP010225

Title :   Comprehensive Machinery Monitoring with FFPI Sensors

Corporate Author : JOINT OIL ANALYSIS PROGRAM PENSACOLA FLTECHNICAL SUPPORT CENTER

Personal Author(s) : Perez, Robert X. ; Atkins, Robert A. ; Lee, Chung E. ; Taylor, Henry F.

PDF Url : ADP010225

Report Date : APR 1996

Pagination or Media Count : 11

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.

Descriptors :   *SYMPOSIA, *FABRY PEROT INTERFEROMETERS, *CENTRIFUGAL COMPRESSORS, *CENTRIFUGAL PUMPS, FIBER OPTICS, VIBRATION, MONITORING, ACCELEROMETERS, PRESSURE GAGES, SHAFTS(MACHINE ELEMENTS), CAVITATION.

Subject Categories : Hydraulic and Pneumatic Equipment
      Pumps, Filters, Pipes, Tubing, Fittings & Vlvs
      Fiber Optics and Integrated Optics

Distribution Statement : APPROVED FOR PUBLIC RELEASE