Water Ultrasonic Flow Metering

设计超声波换能器（或结合超声波换能器的设备），能够同时捕获多个高质量的数据流，包括压力、温度、（精确的）飞行时间和其他可以随着项目进展而识别的数据流。目标是广泛的，并且可以为了学生的利益而加以细化。例如，在早期阶段，一些技术范围/文献综述将是至关重要的，学生可以学习如何优化传感器以减少测量环境中其他传感器或结构的串扰或干扰。设计和制造新的超声波测量换能器概念，用于测量具有不同物理特性（如压力，温度和质量）的水中。一种选择可能是基于弯曲超声换能器的设计。调查和了解不同的环境参数，如压力和温度，对超声换能器动态性能的影响。将提出减轻不良影响的步骤。描述和理解新型换能器对高性能（例如精度）流量测量的影响。这一目标将需要根据环境流体发展和促进新的信号处理策略。创新解决方案，通过传感器动态性能的波动来捕捉系统的物理特性。在这里考虑先进的材料（相变和超材料）可能是合适的——它们可能提供独特的机会来捕获以前不可能的其他数据，如果学生可以提出一个具有成本效益（或实用/现实）的解决方案来整合这些材料，那将是很有趣的。

To engineer ultrasonic transducers (or devices incorporating ultrasonic transducers), able to simultaneously capture multiple high quality data streams, across pressure, temperature, (accurate) time of flight, and others which can be identified as the project progresses.The objectives are broad, and they can be refined for the benefit of the student. For example, some technical scoping / literature review will be vital in the early stages, and the student can study how to optimise transducers to reduce crosstalk or interference with other transducers or structures inside the measurement environment.1. Design and fabricate new ultrasonic measurement transducer concepts for measurement in water with different physical characteristics (such as pressure, temperature, and quality). One option may be a design based on the flexural ultrasonic transducer.2. Investigate and understand the influence of different environmental parameters, such as pressure and temperature, on the dynamic performance of the ultrasonic transducers. Steps to mitigate undesirable influences will be proposed.3. Characterise and understand the impact of the new transducers on high performance (for example with respect to accuracy) flow measurement. This objective will require the development and promotion of new signal processing strategies depending on the environmental fluid.4. Innovate solutions for capturing physical properties of a system, through fluctuations in the dynamic performance of the transducers. It may be appropriate to consider advanced materials (phase transforming and metamaterials) here - they might provide unique opportunities to capture other data previously not possible, and it would be interesting if a cost-effective (or practical / realistic) solution for incorporating such materials could be proposed by the student.