MicroSensors and MicroActuators Georgia Tech MEMS group
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ULTRAMINIATURIZED, PERMANENT MAGNET GENERATORS Florian Herrault, Chang-Hyeon Ji, and Mark G. Allen MEMS-based magnetic generators/motors are very attractive as the mechanical-to-electrical transducer of compact, self-contained power generation systems. Appropriate mechanical input can be provided by micro-gas-engines, high-pressure gas sources, distributed fluidics (e.g., pipeline monitoring), or energy scavenging. In this research, we investigate milliwatt-scale, ultraminiaturized PM generators. Such machines can be applied to backup battery chargers, ubiquitous sensor networks, and RF MEMS. Ultraminiaturized Permanent Magnet Machine Packaged stator Ultraminiaturized PM generators have demonstrated a maximum open-circuit voltage of 51mVrms at 392 krpm, corresponding to an estimated DC output power of 3.6mW. Other projects: Microscale, Axial Flux, Permanent Magnet Generator à
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