光纤温度计的数字信号处理

Proceedings of Conference on Precision Electromagnetic Measurements Digest Pub Date : 1994-12-31 DOI:10.1109/CPEM.1994.333227

V. Fernicola, L. Crovini

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引用次数: 7

摘要

提出了一种用于测量指数衰减信号的数字信号处理方案，例如在荧光、寿命型光纤传感器中发现的那些信号。该仪器采用一种改进的数字相敏检测技术，相位锁定到一个固定值，调制周期跟踪测量寿命。该系统的典型分辨率为0.05%的慢衰减(bbb500 /spl mu/s)和0.1%的快速衰减

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Digital signal processing for fiber-optic thermometers

A digital signal processing scheme for measurement of exponentially-decaying signals, such as those found in fluorescence, lifetime-based, fiber-optic sensors, is proposed. The instrument uses a modified digital phase-sensitive-detection technique with the phase locked to a fixed value and the modulation period tracking the measured lifetime. Typical resolution of the system is 0.05% for slow decay (>500 /spl mu/s) and 0.1% for fast decay.<>

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Proceedings of Conference on Precision Electromagnetic Measurements Digest

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