Wednesday, May 13, 2020 | 12pm to 12:45pm
About this Event
Lauren Chai, PhD Candidate MechE, will present on Nimble Acoustic Assembly of Organized Multi-Material Extrusion Processes as part of the MechE Alliance Seminar Series.
Abstract
Wearable diagnostic devices have an increasing trend towards smaller and lighter devices which are less obtrusive to the wearer and consume less power to function. This evolution has enabled more continuous measurement of body function, moving the data collection environment from the lab/clinic to daily life. The current set of 24/7 measurements is limited to the spaces where these devices are located - primarily at the wrist. The next step in wearable evolution is to embed these devices in fiber and fabric, enabling measurement over most of the body surface thereby opening up new opportunities for collecting data such as body temperature, muscle activation and utility. Embedding these devices in fabric and fiber for everyday use will require creating new techniques for creating these devices on the scale suitable for mass manufacturing. In this talk, I discuss the application of acoustophoresis to create these fibers. I will demonstrate how acoustophoresis is used to manipulate and assemble embedded functional particles in a flowing bulk fluid. I will also demonstrate how this technique can improve function such as conductivity via the arrangement of conductive particles in non-conductive bulk fluids. Finally, I will discuss important considerations for embedding acoustophoresis in existing material systems.
Bio
Lauren Chai is a Mechanical Engineering PhD candidate working with Dr. Brian Anthony in the Computational Instrumentation and Device Realization Lab. Her research is the application of acoustic radiation forces for high-throughput non-contact assembly and manufacture of multi-material fibers. She completed her SM and SB in Mechanical Engineering at MIT.
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