Abstract
3D display technology is limited by the user's ability to interact with displays without being connected to external equipment. In order to feel tactile feedback in conjunction with displays, ultrasonic sound pressure fields have been created; however, ceramic transducers interfere with the user's immersive experience. We have created transparent ultrasonic transducers using capacitive micromachined ultrasonic transducer (CMUT) and piezoelectric micromachined ultrasonic transducer (PMUT) technology that allow the user to remain immersed in the experience while interacting with the display. Individual transparent piezoelectric transducers made with indium tin oxide (ITO) and polyvinylidene fluoride (PVDF) generate 66.9dB with 91.6% transparency. Samples were phased and modulated using a field programmable gate array (FPGA) in a 36-element array.
Degree
MS
College and Department
Ira A. Fulton College of Engineering; Electrical and Computer Engineering
Rights
https://lib.byu.edu/about/copyright/
BYU ScholarsArchive Citation
Laughlin, Emily Anne, "Transparent Capacitive and Piezoelectric Micromachined Ultrasonic Transducers for Tactile Feedback with 3D Displays" (2021). Theses and Dissertations. 9974.
https://scholarsarchive.byu.edu/etd/9974
Date Submitted
2021-08-06
Document Type
Thesis
Handle
http://hdl.lib.byu.edu/1877/etd12812
Keywords
PMUT, CMUT, FPGA, phased array, transparent, haptic feedback
Language
english