Verifying an all fused silica miniature optical fiber tip pressure sensor performance with turbine engine field test

Xingwei Wang, Juncheng Xu, Yizheng Zhu, Bing Yu, Ming Han, Zhuang Wang, Kristie L. Cooper, Gary R. Pickrell, Aditya Ringshia, Wing Ng

Research output: Contribution to journalConference article

6 Citations (Scopus)

Abstract

Pressure sensors are the key elements for industrial monitoring and control systems to lower equipment maintenance cost, improve fuel economy, reduce atmospheric pollution, and provide a safer workplace. However, the testing environment is usually harsh. For example, inside the turbine engine, temperatures might exceed 600°C and pressures might exceed 100psi (690kPa), where most current available sensors cannot survive. Moreover, due to the restricted space for installation, miniature size of the sensor is highly desirable. To meet these requirements, a novel type of all fused silica optic fiber tip pressure sensor with a 125μm diameter was developed. It is a diaphragm based pressure sensor in which a Fabry-Pérot interferometer is constructed by the end face of an optical fiber and the surface of a diaphragm connected by a short piece of hollow fiber. The FP cavity length and the interference pattern will change according to ambient pressure variation. Its main improvement with respect to previously developed optical sensors, such as those utilizing techniques of wet etching, anodic bonding and sol-gel bonding, is the fact that no chemical method is needed during the cavity fabrication. Its dynamic pressure performance was verified in a turbine engine field test, demonstrating not only that it can safely and reliably function near the fan of a turbine engine for more than two hours, but also that its performance is consistent with that of a commercial Kulite sensor.

Original languageEnglish (US)
Article number59980L
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume5998
DOIs
StatePublished - Dec 1 2005
EventSensors for Harsh Environments II - Boston, MA, United States
Duration: Oct 23 2005Oct 24 2005

Fingerprint

turbine engines
Pressure Sensor
Fused Silica
field tests
Pressure sensors
Turbine
pressure sensors
Fused silica
Optical Fiber
Optical fibers
Engine
Turbines
optical fibers
diaphragms
Diaphragms
silicon dioxide
Sensor
sensors
Sensors
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Keywords

  • Fiber optic sensors
  • Miniature
  • Pressure sensor
  • Turbine engine

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

Cite this

Verifying an all fused silica miniature optical fiber tip pressure sensor performance with turbine engine field test. / Wang, Xingwei; Xu, Juncheng; Zhu, Yizheng; Yu, Bing; Han, Ming; Wang, Zhuang; Cooper, Kristie L.; Pickrell, Gary R.; Ringshia, Aditya; Ng, Wing.

In: Proceedings of SPIE - The International Society for Optical Engineering, Vol. 5998, 59980L, 01.12.2005.

Research output: Contribution to journalConference article

Wang, Xingwei ; Xu, Juncheng ; Zhu, Yizheng ; Yu, Bing ; Han, Ming ; Wang, Zhuang ; Cooper, Kristie L. ; Pickrell, Gary R. ; Ringshia, Aditya ; Ng, Wing. / Verifying an all fused silica miniature optical fiber tip pressure sensor performance with turbine engine field test. In: Proceedings of SPIE - The International Society for Optical Engineering. 2005 ; Vol. 5998.
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