Philtec, Inc.

PHILTEC: Custom Fiberoptic Sensors for Non-contact Measurement of Linear Distance, Displacement and Vibration

Conditions

Aircraft engine turbine
  • Bird Strikes
  • Catastrophic Loss of an Engine

Sensor Requirements

  • 30 mm Displacement of Engine Support Structure
  • Side-Viewing Probes
  • 12 m Fiberoptic Cables
  • 20 KHz Sensor Bandwidth

High Speed Compressor Blade Vibration Tests

Illustration of Honeywell LTS101 Turboshaft Engine

The compressor test rig uses a small axial blisk from a 2 stage LTS101 Turboshaft Engine.

Photos of compressor blade and Philtec probe attached and pointed toward blade tips to measure vibration.
  • A High Speed Philtec D63 Probe was attached to the shroud and pointed radially inward at the blade tips.
  • Blade vibration can be detected directly from the deviation in expected arrival time curves for each blade.