A self-powered analog sensor-data-logging device based on Fowler-Nordheim dynamical systems.
basic_science · Level V
Where this comes from
- Record sourced from PubMed, PMID 33116118.
- Also identified by DOI 10.1038/s41467-020-19292-w and PMC identifier 7595237.
- Licence recorded as CC BY.
- The licence permits redistribution, so the abstract is shown in full and the full text is available from the publisher.
Abstract
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.
Medical subject headings
- Biomedical Engineering
- Data Collection
- Electric Power Supplies
- Transducers