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An All-Fiber Fabry-Pérot Sensor for Emulsion Concentration Measurements
Simon Pevec1, Janez Kunavar2, Vedran Budinski1
1Laboratory for Electro Optics and Sensor Systems, Faculty of Electrical Engineering and Computer Science, University of Maribor, Koroska Cesta 46, 2000 Maribor, Slovenia.
Sensors (Basel, Switzerland)
|February 28, 2023
Summary
A new Fabry-Pérot sensor system measures fluid composition by simultaneously tracking temperature and refractive index (RI). This industrial system offers precise, temperature-compensated online monitoring of emulsion concentration.
Area of Science:
- Optical sensing technologies
- Industrial process monitoring
- Chemical sensing
Background:
- Monitoring fluid composition is critical in industrial settings.
- Existing methods for emulsion concentration measurement face challenges in demanding environments.
- Accurate, real-time data is needed for process optimization and quality control.
Purpose of the Study:
- To develop and evaluate a novel Fabry-Pérot sensor-based system for measuring fluid composition.
- To enable simultaneous, temperature-compensated measurement of refractive index (RI) and temperature.
- To demonstrate the system's efficacy in demanding industrial applications, specifically for machining emulsion monitoring.
Main Methods:
- Design of a two-parametric Fabry-Pérot sensor for simultaneous temperature and RI measurement.
- Integration of filtering and automatic cleaning mechanisms for sensor robustness.
- Testing the system under real industrial conditions for online emulsion concentration monitoring.
Main Results:
- The system achieved a high resolution of 0.03 Brix for emulsion concentration measurement.
- Demonstrated successful temperature-compensated online monitoring.
- Validated the essential role of filtering and automatic cleaning for sensor reliability in industrial settings.
Conclusions:
- The developed Fabry-Pérot sensor system provides a robust solution for online fluid composition analysis.
- The simultaneous measurement of temperature and RI enhances accuracy and compensates for environmental variations.
- The system's design, including essential features like automatic cleaning, is crucial for practical implementation in industrial emulsion monitoring.
