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Packaging process of fiber Bragg grating strain sensors for use in high-temperature applications
RISE., Swedish ICT, Acreo.ORCID-id: 0000-0003-0830-6226
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2005 (Engelska)Konferensbidrag, Publicerat paper (Refereegranskat)
Abstract [en]

In this paper, we report the development of a new bonding agent and method for the surface mounting of optical fiber Bragg grating (FBG) strain and temperature sensors for use in high temperature environments--where there is a presence of water, moisture, dust, susceptibility to corrosion and/or elevated temperatures up to 800°C. To ensure a stable reflectivity response of FBGs and their survival at elevated temperatures, we are using chemical composition gratings (CCGs). The refractive index modulation in these gratings is caused by a chemical change, which results in a higher activation energy and stable behavior up to 1000°C. Samples of CCGs were successfully encapsulated and mounted onto metal shims. The packaged sensors were tested for strain (+/- 1000με) and temperature (to +400 °C) response. The encapsulated sensors display a linear response with an increase in the temperature sensitivity of the FBG, with a factor of ~ 28.34pm/°C, and a strain gauge factor of 1.7pm/με.

Ort, förlag, år, upplaga, sidor
2005.
Nationell ämneskategori
Naturvetenskap
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URN: urn:nbn:se:ri:diva-59971DOI: 10.1117/12.629984OAI: oai:DiVA.org:ri-59971DiVA, id: diva2:1686725
Konferens
Proc.SPIE
Tillgänglig från: 2022-08-11 Skapad: 2022-08-11 Senast uppdaterad: 2023-06-08Bibliografiskt granskad

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Claesson, Åsa

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