摘要
利用超声波作为检测途径,在振动检测法和传播路径检测法不同的检测理论基础上,观察原始接收信号并对其构建AR模型,抽取信号在不同液位状态下的特征值。实验结果表明,该方案在识别液位状态方面是个有效的方法。
The ultrasonic testing is used as a way to detection. Based on the different testing theory of the vibration and the spread path, the original signal is observed, the AR model is build, and the characteristic value of the signal in different liquid state is extracted. The experiment result shows that this scheme is effective to detect the liquid state.
出处
《电声技术》
2009年第5期48-50,共3页
Audio Engineering
关键词
超声波
振动及传播路径检测法
AR模型
特征值
ultrasonic
testing of vibration and spread path
AR model
characteristic value
