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Updated: Jun 23, 2026
09:03
A Silicon-tipped Fiber-optic Sensing Platform with High Resolution and Fast Response
Published on: January 7, 2019
Direct measurement high resolution wide range extreme temperature optical sensor using an all-silicon carbide probe
1Photonic Information Processing Systems Laboratory, CREOL, The College of Optics and Photonics, University of Central Florida, 4000 Central Florida Boulevard, Orlando, Florida 32816-2700, USA.
Optics Letters
|May 5, 2009
Summary
This study introduces a novel silicon carbide temperature sensor. It achieves precise, unambiguous measurements across a wide range, ideal for advanced gas turbine applications.
Area of Science:
- Materials Science
- Optical Sensing
- Thermodynamics
Background:
- Accurate temperature measurement is crucial for optimizing energy conversion processes.
- Existing high-temperature sensors face challenges with accuracy and durability.
- Silicon carbide offers excellent thermal and chemical stability for harsh environments.
Purpose of the Study:
- To develop a high-resolution, wide-range temperature sensing method using silicon carbide.
- To combine wavelength-tuned signal processing and Fabry-Perot interferometry for enhanced accuracy.
- To demonstrate the sensor's applicability in high-temperature industrial settings like gas turbines.
Main Methods:
- Utilizing an all-silicon carbide probe for temperature sensing.
- Implementing wavelength-tuned signal processing for coarse temperature readings.
- Employing Fabry-Perot etalon peak shift for fine, high-resolution temperature measurements.
- Experimentally validating the sensor from room temperature to 1000°C.
Main Results:
- Direct and unambiguous temperature measurements were achieved.
- High temperature resolution was demonstrated, varying from 0.66°C at room temperature to 0.12°C at 1000°C.
- The sensor successfully operated across the tested wide temperature range.
Conclusions:
- The proposed silicon carbide sensor offers a robust and accurate solution for high-temperature measurements.
- This technology has significant potential for improving the efficiency and environmental performance of gas turbines.
- The combined sensing approach provides superior resolution and reliability compared to conventional methods.
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