基于相关检测的漏点定位系统设计

Leaking some navigation systems based on relevant detection

利用管道泄漏时产生频率相对稳定的振动现象的特点,使用互相关函数峰点跟踪系统的设计原理,结合单片机系统,设计使用方便的泄漏点定位测试系统。该系统首先将振动传感器信号转化为频率信号,由单片机及其辅助模块对频率信号进行计数、计算并显示结果。该系统能有效地抑制噪声,快捷而准确地检测到漏点位置,且可以自评定测量结果是否准确。

Divulges using the pipeline when has the frequency relatively stable vibration phenomenon characteristic, the use crosscorrelation function peak tracking system principle of design, unified the monolithic integrated circuit system design one kind of easy to operate to divulge the localization test system. This system first the oscillationpick-up signal will transform as the frequency code, will carry on by the monolithic integrated circuit and its the assistance module to the frequency code counts, the computation and the demonstration result. This system establishes the sensor in the small scope, is advantageous for the operation. This system can the effective noise elimination, quickly but the accurate examination leaking point position, also may from evaluating the measurement result is whether accurate.