组分含量是反映产品生产状态和性能的重要指标。超声传感器在悬浮液组分含量在线测量中具有广阔的应用前景。但由于高浓度多组分悬浮液存在固含量高、粒径范围宽和组分间交叉干扰等问题，其超声测量理论还不完善，难以应用于工业过程中。为此，本项目系统开展高浓度多组分悬浮液组分含量的超声测量理论和应用研究。在揭示组分含量、粒径、组分物性参数、温度和气泡等多因素及耦合作用对超声传播过程的影响规律的基础上，构建高浓度多组分悬浮液的超声传播模型；研究基于化学计量学方法建立理论超声波谱与组分含量映射关系的方法，构建组分含量的超声测量模型，实现组分含量的在线测量。该研究有助于丰富固液两相介质中超声传播机理，也能为提高产品质量和生产效率提供技术支撑。

The component concentrations are key indicators of production states and product performance. The ultrasonic sensors show promising applications in online measurement of suspensions component concentrations. The high concentration multicomponent suspensions have the shortages of high solid content, wide particle size range, and cross interference among the contents. So the ultrasonic measurement theory about high concentration and multicomponent suspensions is not perfect for the application in industrial process. Therefore, this project will systematically study the ultrasonic measurement theory and application of component concentrations for high concentration multicomponent suspensions. The effects of component concentration, particle size, physical property of components, temperature, bubbles and their coupling effects to the ultrasonic propagation process will be studied. Then the ultrasound propagation models will be built. What’s more, the chemometric methods will be used to build the mapping relation between ultrasonic spectrum and component concentrations, to acquire the measurement model for fast measuring of component concentrations. The study will contribute to enrich the ultrasonic propagation mechanism of solid-liquid two-phase medium, and also provide technical support for improving product quality and production efficiency.