快堆蒸汽发生器声学泄漏探测技术的研究──Ⅱ.利用经典滤波技术提取泄漏信号

INVESTIGATION ON ACOUSTIC LEAK DETECTION METHODS IN LMFBR STEAM GENERATORS Ⅱ.PICK OF LEAK SIGNALS USING CLASSICAL FILTERING TECHNOLOGY

根据在实验Ｎａ回路上得到的实验结果，在对泄漏信号和背景噪声特性研究的基础上，提出了用经典滤波技术处理数据的方法，并验证了这种方法对提高测量系统灵敏度的作用。最后，讨论了所构建的声学泄漏探测系统在我国即将建造的实验快堆电站上的实用化问题。

On the base of analyzing leak and various background noises, according to the experimental results from sodium test loop, a method of processing data by using classical filtering technology is put forward and its efficacy of improving the sensibility of measurement system is proved in the paper. Finally, it is discussed that how to implement the acoustic leak detection system to LMFBR power plant which will be built in our country.