The major goal of this project is to develop a MEMS-based miniature imaging probe that can perform three-dimensional imaging in vivo inside human body using nonlinear optical effects.
The goal of this project is to develop a light-weigth optical probe that can be mounted on a freely moving mouse and continuously obtain in vivo 3D imaging of neural activity, particularly using Ca2+ fluorescence imaging. MEMS technology is used for miniaturization.
In their effort to locate, understand and mitigate the impact of noise sources on an aircraft, aeroacousticiansare in need of a high performance, low cost microphone to combat the increasing noise restrictions on commercial aircraft. Existing commercial sensors, even with their relatively high cost, in some cases constrain the quality and type of measurement that may be achieved. One such constraint is that the physical size and characteristics of the sensors limit the optimal locations in which the sensors may be placed. Previous generations of MEMS aeroacoustic microphones have failed to address the need for a sensor that can be packaged and installed with a smooth front surface to be used for boundary layer measurements in a fuselage array at cruise conditions. Additionally, these microphones must meet demanding requirements, including the sensing of high sound pressure levels (>160 dB) with low distortion (<3%) and high sensitivity stability (with respect to moisture and freezing) over temperatures from -60°F to 150°F. This work addresses the limitations of existing MEMS piezoelectric microphones used in aeroacoustic applications by incorporating through-silicon vias(TSVs) into the fabrication to eliminate the use of wirebondsthat affect the flow field and create an overall flush-mount microphone package.
The goal of this research is to develop a MEMS-based Five-hole Probe(5HP) that is able to measure the localized velocity vector (both the velocity magnitude and direction) and the static and dynamic pressure, in steady and/or unsteady flow fields. Five optical pressure sensors located on the hemisphere tip of the 5HP provide all information that is needed to resolve the flow. This 5HP is expected to be able to provide high spatial resolution, high frequency response and is compatible with elevated temperature environments. A primary focus of this research is on the microfabrication and micromachining of a die that incorporates five optical transducers and its successive packaging process. The completed sensors will be tested in flow cells and wind tunnels at UF for the final calibration.
The UF Smart Mouthguard team won 2nd place in the International Contest of Global Youth Innovation Festival 2015.
The Global Youth Innovation Festival is an international competition for college students to promote the innovative spirits of youth, to construct collaboration platforms, and to increase applications. More than 120 teams participated in the contest and 12 finalist teams from 6 countries were invited to the finals held in Beijing, CN, October 25, 2015. The UF team represented the USA and won 2nd place out of the 12 finalist teams.
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The UF team included:
Students: Justin Correll (ECE, Undergrad), Todd Schumann (ECE, Graduate), Sheng-Po Fang (ECE, Graduate)
Advisors: YK Yoon (ECE), Fong Wong (Dentistry)