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基于现代检测理论及流动噪声的产生和传递机理，应用噪声分析，对流动参数测量进行了以下几方面的探索：建立了利用节流装置差压噪声测量两相流质量流量和相比份的理论模型，并在孔板汽水两相流测量实验中得到证实；纠正了传统相关测速传感器配置原则的局限并建立了修正相关测速系统误差的自标定方法：阐明了空间滤波器用于流速测量的原理及其构造原则；提出了噪声信号空间分析鉴别两相流型的方法
Based on the theory of modern detection and the generation and transmission mechanism of flow noise, the noise analysis is used to explore the measurement of flow parameters in the following aspects: The theory of measuring the mass flow rate and phase fraction of two-phase flow by differential pressure noise of throttle device is established Model and verified in the measurement experiment of two-phase flow of the orifice plate. The limitations of the traditional principle of the velocity sensor are corrected and the self-calibration method of correcting the error of the relevant velocity measurement system is established. The principle of the spatial filter used in the flow velocity measurement The principle of its construction, and proposes a method of spatial identification of two-phase flow pattern by noise signal