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发明公开
CN102116740A 可燃气体浓度光纤监测方法及装置 无效 - 撤回

可燃气体浓度光纤监测方法及装置
摘要：
本发明涉及一种石油炼制、贮存、运输、石油液化气站等，可燃气体的安全监测技术，特别涉及一种可燃气体浓度光纤监测方法及装置。本发明采用搀有光敏材料的光纤，用微激光技术分别把甲烷、丁烷等的光谱频率和波长写入纤芯，用高分子绝缘材料把光纤制作成监测传感器和光缆。根据监测气体的光谱频率和波长设置监测信息解调仪，光纤传感器根据设计的光谱频率和波长识别出监测气体并将信息传给解调仪，解决了光纤在线实时监测甲烷、丁烷的气体浓度的问题。
摘要（英）：

The invention relates to a safe monitoring technology of a combustible gas in petroleum refining, storage, transportation, liquefied petroleum gas stations and the like, in particular to a fiber monitoring method and device for the concentration of a combustible gas. In the invention, a fiber doped with a photosensitive material is adopted, the spectral frequencies and the wavelengths of methane, butane and the like are respectively written into a fiber core by using a micro laser technology, and the fiber is manufactured into a monitoring sensor and an optical cable by using a high molecular insulating material. A monitoring information demodulator is set according to the spectral frequency and the wavelength of the monitored gas, and the fiber sensor identifies the monitored gas according to the designed spectral frequency and wavelength and transmits the information to the demodulator. The problem that a fiber monitors the gas concentration of methane and butane on line and in real time is solved.

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