340 ブリルアン散乱利用ひずみ計測の空間分解能向上手法に関する解析的検討

概要

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Stimulated Brillouin Scattering (SBS) is utilized in the optical fiber sensor distributed measurement system. BOTDA (Brillouin Optical Time Domain Analyzer), one of these devices, shows a capability to obtain strain and temperature simultaneously with high precision over a distance of tens' kilometers. This makes BOTDA an expectable candidate device to realistic FOBSS (Fiber Optic Based Smart Structure). The present paper suggests a computer based tomography method to enhance the spatial resolution of BOTDA which can be solved to an artificially specified segment of centimeter order or less; this is one or two orders smaller than the present art of view. The presented result is considered as an important progress towards widely commercial applications.
一般社団法人日本機械学会の論文
2000-07-31