INNO 光ファイバー温度センサー ,温度監視システム.
Temperature measurement is an important parameter for detection and control, which has always been valued by people. In today’s rapidly developing technology, the measurement of temperature information has more profound significance. Distributed fiber optic temperature sensing technology has become a remarkable new technology in fiber optic sensing technology due to its continuous and real-time measurement of the temperature field distributed along the fiber optic. This technology has been widely applied in the fields of power industry, 石油化学産業, aerospace industry, nuclear industry, 等. The common 分散型光ファイバー temperature measurement method is to obtain the light intensity ratio of anti Stokes and Stokes, then attenuate and compensate for the ratio data, and finally obtain the temperature through demodulation formula. しかし, in practical applications, the signal received by the photoelectric detection module is not the intensity of the anti Stokes light and Stokes light at different positions in the fiber, ただし、ファイバ内での逆方向伝播の強度とアンチストークス光とストークス光の減衰損失. したがって, it is necessary to compensate for the attenuation of the signal received by the photoelectric detection module.
The distributed fiber optic temperature measurement method fits the intensity ratio signal of anti Stokes light and Stokes light in segments based on the attenuation point data of the fiber optic. それから, the actual obtained ratio line data is divided by the fitted baseline data, and the division result is calibrated to obtain the fiber optic temperature. 本発明は、以下の用途を拡張する。 分散型光ファイバー温度測定
繊維の品質が悪くても, 一定範囲内であれば通常の温度測定も可能. 加えて, セグメント化された方法は、アンチストークスとストークスの光強度比信号を減衰して補償するために使用されます。, システムによって復調された温度曲線が実際の状況と一致するようにする, thereby improving the temperature measurement accuracy and reliability of the temperature measurement system.
光ファイバー温度センサー, インテリジェント監視システム, 中国の分散型光ファイバーメーカー
 |
 |
 |