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Full-Text Articles in Engineering
Design And Construction Of A Noncontact Resistivity Measurement Instrument, William R. Hamilton
Design And Construction Of A Noncontact Resistivity Measurement Instrument, William R. Hamilton
Journal of the Microelectronic Engineering Conference
An Eddy—Current Gauge was fabricated from the design of G. L. Miller, D. A. H. Robinson and T. D. Wiley Cl]. The electronics involved was mounted on a printed circuit board and the header assembly was successfully machined and housed in Lucite. The calibration and testing confirmed the instrument’s linear properties for measuring conductivity.
Mathematical Model Of A Lithium/Polypyrrole Cell, Taewhan Yeu, Ralph E. White
Mathematical Model Of A Lithium/Polypyrrole Cell, Taewhan Yeu, Ralph E. White
Faculty Publications
A mathematical model to simulate the charge/discharge behavior of a lithium/lithium perchlorate-propylene carbonate/polypyrrole(Li/LiClO4-PC/PPy) secondary battery cell is presented. The model can be used to gain a better understanding of the behavior of this cell and to provide guidance toward the design of new secondary batteries which utilize an electronically conductive polymer such as polypyrrole (PPy) as the cathode. The model includes the capability of handling charge and discharge behavior and is used to study the effect of various design parameters on the performance of the cell.
Design Considerations For 1-3 Composites Used In Transducers For Medical Ultrasonic Imaging, Wayne Huebner, Kuiming Liang, Clyde G. Oakley
Design Considerations For 1-3 Composites Used In Transducers For Medical Ultrasonic Imaging, Wayne Huebner, Kuiming Liang, Clyde G. Oakley
Materials Science and Engineering Faculty Research & Creative Works
Ceramic polymer piezoelectric composites with 1-3 connectivity have become an important tool in the design and manufacture of thickness-mode transducers for medical diagnostic ultrasonic imaging. The authors compare annular array transducers made from ceramics alone to those made with these composites to demonstrate the advantages of composites. They examine some of the trade-offs involved in optimizing composite designs for this application. The effects of varying Young's modulus and Poisson's ratio of the polymer phase on the coupling coefficient and high-frequency lateral resonances of the composite are presented