The instrument measures vibration signal of diesel cylinder header, extracts the characteristic parameters, to diagnosis for fault of leakage and abnormal space of valve.
该仪器通过测量柴油机缸盖表面的振动信号，提取特征参数，对柴油机的气阀漏气与间隙异常进行诊断。
In this paper we propose a novel leakage fault detection and diagnosis method, using dynamic simulation to monitor the fluid flow process and identify leakages when large flow rate deviations occur.
诊断过程通过动态模型的在线参数估计完成，在实现模型校正的同时可以预测流动过程的变化趋势并判断是否存在故障。
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