|About this Abstract
||2020 TMS Annual Meeting & Exhibition
||Characterization of Minerals, Metals and Materials
||Simulation and Additive-manufacturing of the Smallest Flute: Design and Fabrication of an Acoustic Sensor to Measure Flow Parameters
||Zeqing Jin, Xi-Cheng Zhang
|On-Site Speaker (Planned)
Flow parameters in a pipe such as velocity and direction are important variables of interest in the field of fluid dynamics. Current detection methods depend on external devices such as sonar gauges installed outside pipes and are not compact enough to fit in any smaller tube. Inspired by the sound generation principle of a musical flute, a millimeter-scale spontaneous acoustic sensor is proposed to measure the flow velocity and direction. It has been demonstrated by fabricating holes on a syringe needle using a femtosecond laser and the machined needle is able to generate some specific frequencies. To further investigate the working principle behind it, acoustic simulations are implemented to find the relationships between hole size, hole distance and flute material against the frequency of sound generated. Additionally, additive-manufactured samples are tested to validate the simulation results. This prototype can be potentially utilized in micro-fluid detection, MEMS applications, and biomedical inspections.