Temperature-insensitive pressure transducer based on reflected broadened spectrum with enhanced sensitivity
| Autor: | A.M. Aizzuddin, Z. M. Hafizi, E. Vorathin, Kok-Sing Lim |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Materials science
Photodetector 02 engineering and technology Grating 01 natural sciences law.invention Optics Natural rubber law 0103 physical sciences Demodulation Electrical and Electronic Engineering Instrumentation 010302 applied physics business.industry Bandwidth (signal processing) Metals and Alloys Linearity 021001 nanoscience & nanotechnology Condensed Matter Physics Pressure sensor Surfaces Coatings and Films Electronic Optical and Magnetic Materials Pressure measurement visual_art visual_art.visual_art_medium 0210 nano-technology business |
| Zdroj: | Sensors and Actuators A: Physical. 288:61-66 |
| ISSN: | 0924-4247 |
| DOI: | 10.1016/j.sna.2019.01.028 |
| Popis: | Pasting of half the grating of an FBG sensor on a natural rubber diaphragm was used to sense the pressure measurement. The pressure-induced strain on half of the grating resulted in bandwidth broadening. From the pressure range of 0 kPa to 20 kPa, the pressure sensitivity at 15 dB bandwidth changed was obtained at 77.7 pm/kPa with 99.94% of linearity. Through total reflected power monitoring via photodetector, the pressure transducer retrieved a sensitivity of 0.1686 dB m/kPa and evaded a complex demodulation technique. As a result of the temperature-independent bandwidth change, the pressure transducer was totally temperature insensitive. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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