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Authors: Giannis Kazdaridis, Ioannis Zographopoulos, Polychronis Symeonidis, Panagiotis Skrimponis, Thanasis Korakis and Leandros Tassiulas

Conference:  ACM WinTech 2017, ACM Mobicom 2017, Snowbird, Utah, USA, 20 October 2017

Abstract: Typical wireless sensor devices feature an extreme power consumption range between their active and sleep states, thus requiring different hardware setups for measuring their expenditure with high accuracy. In this demo paper we present the NITOS dynamic ACM, an in-situ power meter that exploits auto-ranging methods to support high dynamic currents. Our implementation features 250 kSps of sampling rate, while attaining high precision in both the active and sleep states of the targeted device, by using two different shunt resistors that are alternated automatically with the aid of a high speed comparator. The acquired results indicate the smooth performance of our system as well as the high accuracy attained.

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