FBG Water-Level Transducer Based on PVC-Cantilever and Rubber-Diaphragm Structure
| Autor: | Harith Ahmad, M. Loman, Kok-Sing Lim, E. Vorathin, A.M. Aizzuddin, N. Ismail, Z. M. Hafizi |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
chemistry.chemical_classification
Fabrication Cantilever Materials science 010401 analytical chemistry Linearity Polymer 01 natural sciences 0104 chemical sciences Water level Transducer chemistry Natural rubber visual_art visual_art.visual_art_medium Electrical and Electronic Engineering Composite material Instrumentation Sensitivity (electronics) |
| Zdroj: | IEEE Sensors Journal. 19:7407-7414 |
| ISSN: | 2379-9153 1530-437X |
| DOI: | 10.1109/jsen.2019.2916469 |
| Popis: | The use of FBG sensors in water level monitoring has shown great advantages over the use of conventional electrical sensors. However, much effort is still required to increase their sensitivity towards water level measurement with eliminated sensitivity towards temperature. Here, the FBG was bonded on a PVC polymer plastic cantilever beam and rubber diaphragm structure. The sensing mechanism was based on the differential FBG method. Variations of the water level from 0 to 100 cm obtained the sensitivity of 0.0639 nm/cm with the linearity of 98.06%. The poor linearity was mainly due to the manual fabrication errors. However, this uncertainty can be overcome through the polynomial regression fit in determining the water level measurement. The measured water level was closed to the actual water level at a tolerance of ±2 cm. For temperature effects, the sensitivity was inconspicuous, recorded at only 0.0003 nm/°C across the range of 10 °C to 60 °C. |
| Databáze: | OpenAIRE |
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