啁啾光纤光栅热烧蚀在线空间分辨温度传感研究

2016 IEEE International Symposium on Medical Measurements and Applications (MeMeA) Pub Date : 2016-05-15 DOI:10.1109/MeMeA.2016.7533777

D. Tosi, S. Korganbayev, Nurlan Zhakin, Riccardo Gassino, G. Perrone, A. Vallan

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引用次数: 12

摘要

我们研究了一种适用于热烧蚀监测的内联空间分辨温度传感器的理论和可行性。该传感器基于啁啾光纤布拉格光栅(CFBG)。CFBG被建模为一串布拉格光栅，每个光栅对局部温度变化都很敏感。通过结合迭代和统计优化技术，可以在类高斯空间温度分布的情况下对CFBG进行解调。基于CFBG仿真的可行性测试表明，该方法对细胞损伤阈值空间估计的返回误差< 1 mm，具有良好的抗噪能力。

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Towards inline spatially resolved temperature sensing in thermal ablation with chirped fiber Bragg grating

We investigate the theory and feasibility of an inline spatially resolved temperature sensor, suitable for thermal ablation monitoring. The sensor is based o a chirped fiber Bragg grating (CFBG). The CFBG is modelled as a chain of Bragg gratings, each sensitive to local temperature variations. By using a combination of iterative and statistical optimization techniques, it is possible to use demodulate the CFBG, in case of a Gaussian-like spatial temperature profile. A feasibility test based on CFBG simulation shows that the CFBG returns error <;1 mm on cellular damage threshold spatial estimation and good noise resilience.

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2016 IEEE International Symposium on Medical Measurements and Applications (MeMeA)

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