Temperature and Lateral Pressure Sensing Using a Sagnac Sensor Based on Cascaded Tilted Grating and Polarization-Maintaining Fibers
This study introduces a Sagnac Interferometer (SI) fiber sensor that integrates Polarization-Maintaining Fibers (PMFs) with a Tilted Fiber Bragg Grating (TFBG) for the dual-parameter measurement of strain and lateral pressure. By incorporating a 6° TFBG with PMFs into the SI sensor, its sensitivity...
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Veröffentlicht in: | Sensors (Basel, Switzerland) Switzerland), 2024-10, Vol.24 (21), p.6779 |
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Format: | Artikel |
Sprache: | eng |
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Zusammenfassung: | This study introduces a Sagnac Interferometer (SI) fiber sensor that integrates Polarization-Maintaining Fibers (PMFs) with a Tilted Fiber Bragg Grating (TFBG) for the dual-parameter measurement of strain and lateral pressure. By incorporating a 6° TFBG with PMFs into the SI sensor, its sensitivity is significantly enhanced, enabling advanced multi-parameter sensing capabilities. The sensor demonstrates a temperature sensitivity of -1.413 nm/°C and a lateral pressure sensitivity of -4.264 dB/kPa, as validated by repeated experiments. The results exhibit excellent repeatability and high precision, underscoring the sensor's potential for robust and accurate multi-parameter sensing applications. |
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ISSN: | 1424-8220 1424-8220 |
DOI: | 10.3390/s24216779 |