13 research outputs found
Piezoelectrically transduced high-Q silica micro resonators,"
ABSTRACT In this paper, we report on high-performance piezoelectric-on-silica micromechanical resonators for integrated timing applications. Fused silica is used as the resonator structural material for its excellent material properties, and thin film aluminum nitride is used as the piezoelectric transduction layer. A silica resonator is demonstrated with a high quality factor (Q U ~25,841), low motional impedance (R m ~350 ČŤ), and good power handling capability. The measured fuQ product of this resonator is the highest amongst reported micromachined silica/fused quartz resonators
Low series noise and low power preamplifiers for cryogenic applications in the GaAs CHFET technology from Honeyewll
Low series noise and low power preamplifiers for cryogenic applications in the GaAs CHFET technology from Honeywell
Contact heating of bi-dispersed milli-beads in a rotary drum. Mechanical segregation impact on temperature distribution and on heating kinetic analyzed by DEM simulation
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