Evaluation and calibration of FBG-based relative humidity sensor designed for structural health monitoring
- In this paper, the evaluation and testing of a fibre optic relative humidity sensor specifically designed for structural health monitoring is discussed in detail. The sensor is based on a polymer coated Fibre Bragg Grating (FBG) where with the increase of the moisture level, the polymer coating swells and thus applies strain to the FBG, causing a Bragg wavelength shift. The device is designed so that the temperature effect on the humidity sensor can be compensated by the inclusion of a second un-coated FBG packaged inside the same sensor probe. The sensor thus produced has been tested extensively and calibrated using both a humidity chamber and standard salt solutions. The probe has demonstrated a very good performance for relative humidity measurements.
Autor*innen: | T. Venugopalan, T. L. Yeo, Frank Basedau, Anna-Sophia Henke, T. Sun, K.T.V. Grattan, Wolfgang Habel |
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Dokumenttyp: | Beitrag zu einem Tagungsband |
Veröffentlichungsform: | Verlagsliteratur |
Sprache: | Englisch |
Titel des übergeordneten Werkes (Englisch): | Proceedings of SPIE 7503 |
Jahr der Erstveröffentlichung: | 2009 |
Herausgeber (Institution): | The International Society for Optical Engineering (SPIE) |
Verlag: | VDE-Verl. |
Verlagsort: | Berlin ; Offenbach |
Jahrgang/Band: | 7503 |
Erste Seite: | 750310-1 - 750310-5 |
DOI: | 10.1117/12.835611 |
ISSN: | 0277-786X |
ISSN: | 0038-7355 |
ISSN: | 0361-0748 |
Verfügbarkeit des Dokuments: | Physisches Exemplar in der Bibliothek der BAM vorhanden ("Hardcopy Access") |
Bibliotheksstandort: | Sonderstandort: Publica-Schrank |
Datum der Freischaltung: | 19.02.2016 |
Referierte Publikation: | Nein |