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Fiber loop ringdown for physical sensor development: pressure sensor.

Chuji Wang1, Susan T Scherrer

  • 1Diagnostic Instrumentation and Analysis Laboratory, Mississippi State University, 205 Research Boulevard, Starkville, Mississippi 39759, USA. wang@dial.msstate.edu

Applied Optics
|December 25, 2004
PubMed
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Researchers developed a novel optical fiber pressure sensor using a fiber loop ringdown method. This new sensor demonstrates reliable performance for pressure measurements up to 9.8 x 10^6 Pa.

Area of Science:

  • Optoelectronics
  • Sensor Technology
  • Materials Science

Background:

  • Optical fiber sensors offer advantages in harsh environments.
  • Fiber loop ringdown spectroscopy is a sensitive measurement technique.
  • Developing robust fiber optic pressure sensors is crucial for various industrial applications.

Purpose of the Study:

  • To introduce a new method for developing optical fiber pressure sensors.
  • To characterize the performance of a fiber loop ringdown-based pressure sensor.
  • To evaluate the sensor's suitability for measuring pressures in the range of 0 to 9.8 x 10^6 Pa.

Main Methods:

  • A fiber loop ringdown scheme was employed for sensor development.
  • System characterization included baseline stability, transmission loss, and refractive index measurements.

Related Experiment Videos

  • Sensor performance was evaluated by applying controlled forces to the sensor head.

    • Main Results:

    • The developed sensor demonstrated a linear response and good repeatability.
    • Detection sensitivity and measuring dynamic range were explored.
    • The sensor successfully measured pressures up to 9.8 x 10^6 Pa with good temperature tolerance.

    Conclusions:

    • The fiber loop ringdown scheme provides a viable method for creating optical fiber pressure sensors.
    • The sensor exhibits promising characteristics for practical pressure monitoring applications.
    • Further optimization could enhance sensitivity and expand the measurement range.