Collaborative Research: Development of a Compact Acoustic Wave Sensor

这些合作项目研究了提供声源位置信息的紧凑型传感器的配置和测量要求。所提出的紧凑型声波传感器将使用来自一个或多个连续结构的紧密间隔测量以及空间力重建方法来确定通过的瞬态声波的特性。这种传感器的配置和结构要求将首先通过分析建模进行研究。与边界条件，形状和材料属性相关的问题将被检查。然后将研究使用分布式力重建方法来精确确定由通过声波引起的瞬态声力的要求。一旦了解了结构配置和力重建方法的要求，将通过模拟和实验研究使用传统的传感技术来获得特定原型的瞬态响应。传统的测量方法，如加速度计和/或应变传感器，将首先进行评估。然后，使用更先进的非合同技术，如高速率激光扫描或干涉测量，将被检查。利用这些先进的技术，有可能放宽对测量声影响的连续结构的要求

These collaborative projects study configuration and measurement requirements for a compact sensor that provides information on the location of an acoustic source. The proposed compact acoustic wave sensor would use closely spaced measurements from one or more continuous structures along with spatial force reconstruction methods to determine the characteristics of passing transient acoustic waves. Configuration and structural requirements for such a sensor will first be studied through analytical modeling. Issues associated with boundary conditions, shape, and material properties will be examined. The requirements for using distributed force reconstruction methods to accurately determine the transient acoustic forces caused by a passing sound wave will then be investigated. Once the requirements for the structural configuration and force reconstruction method are understood, the use of conventional sensing techniques to obtain the transient response from a particular prototype will be studied through simulation and then experiments. Conventional measurement approaches, such as accelerometers and/or strain sensors, will initially be evaluated. Then, the use of more advanced non-contract techniques, such as high-rate laser scanning or interferometry, will be examined. Using these advanced techniques, it may be possible to relax the requirements for the continuous structure over which the sound influence is measured