音波检测法Acoustic detection 检测和定位原理Principle of detection and location 基于物体间的相互碰撞均会产生振动,发出声音,形成声波的原理所开发的泄漏检测系统。管道发生破裂时产生的音波沿着管道内流体向管道上下游高速传播,安装在管段两端的音波传感器监听并将捕捉到的音波波形,与计算机数据库中的模型比较,确定管道是否发生了泄漏及泄漏量等数值,同时根据管道在两端捕捉到的泄漏信号的时间差计算得到泄漏位置。Based on the principle that the collision of objects will produce vibration and sound, the leakage detection system is developed. Pipeline fracture when the ultrasonic wave flow along the pipe to pipe upstream and downstream high-speed transmission, installed on both ends of pipe section of the ultrasonic sensors to monitor and capture the sonic waveform, compared with computer in the database model, to determine whether pipeline leakage and the leakage happened such as value, at the same time, according to the pipeline at both ends of leakage signal capture time calculated leakage location.