1 research outputs found
A Self-powered Analog Sensor-data-logging Device based on Fowler-Nordheim Dynamical Systems
Continuous, battery-free operation of sensor nodes requires ultra-low-power
sensing and data-logging techniques. Here we report that by directly coupling a
sensor/transducer signal into globally asymptotically stable monotonic
dynamical systems based on Fowler-Nordheim quantum tunneling, one can achieve
self-powered sensing at an energy budget that is currently unachievable using
conventional energy harvesting methods. The proposed device uses a differential
architecture to compensate for environmental variations and the device can
retain sensed information for durations ranging from hours to days. With a
theoretical operating energy budget less than 10 attojoules, we demonstrate
that when integrated with a miniature piezoelectric transducer the proposed
sensor-data-logger can measure cumulative "action" due to ambient mechanical
acceleration without any additional external power.Comment: 24 pages (including 11 supplementary pages) and 16 figures (including
11 supplementary figures