Ultra-low-power RADFET sensing circuit for wireless sensor networks powered by energy harvesting

Somov, A, Chew, Z, Ruan, T, Zhu, M and Platt, Simon Philip orcid iconORCID: 0000-0003-4431-8814 (2017) Ultra-low-power RADFET sensing circuit for wireless sensor networks powered by energy harvesting. In: 15th IEEE Sensors Conference, SENSORS 2016, 30 October - 2 November 2016, Orlando; United States.

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Official URL: https://doi.org/10.1109/ICSENS.2016.7808753

Abstract

We evaluate an ultra-low-power radiation-sensing circuit based on a radiation sensitive MOSFET (RADFET) for use in Wireless Sensor Networks (WSN) powered by energy harvesting with a special focus on airborne applications. We estimate a worst-case energy budget below 10 μJ per readout cycle superimposed on a constant worst-case power budget below 10 μW. The sensor circuit operates successfully with a wireless sensor node powered by a piezoelectric harvester and power management unit which is able to provide up to 2.5 mW at 10 Hz, 600 μϵ in emulated flight mode.


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