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The modeling of an energy harvesting device consisting of a piezoelectric based stack is presented. In addition, the optimization of the power acquired from the energy harvester is considered. The harvesting device is a piezoceramic element in a stack configuration, which scavenges mechanical energy emanating from a 1D-sinusoidal-base excitation. The device is connected to a harvesting circuit, which...
Breaking down the barriers of traditional sensors, MicroStrain’s energy harvesting wireless sensors eliminate long cable runs as well as battery maintenance. Combining processors with sensors, the wireless nodes can record and transmit data, use energy in an intelligent manner, and automatically change their operating modes as the application may demand. Harvesting energy from ambient motion, strain,...
Recent progresses in both microelectronic and energy conversion fields have made the conception of truly self-powered, wireless systems no longer chimerical. Combined with the increasing demands from industries for left-behind sensors and sensor networks, such advances therefore led to an imminent technological breakthrough in terms of autonomous devices. Whereas some of such systems are commercially...
Many environmental and industrial monitoring scenarios require wireless instrumentation with a small form factor and a long service life, a combination that forces designers to move beyond batteries and into energy harvesting techniques. This chapter considers the average requirements of wireless sensor networks, and assesses the suitability of modern thermal, photonic, and vibration-harvesting methods...
This chapter focuses on how to most efficiently transfer and condition harvested energy and power with emphasis on the imposed requirements of microscale dimensions. The driving objective is to maximize operational life by reducing all relevant power losses. The chapter therefore briefly reviewes the electrical characteristics and needs of available harvesting sources and the operational implications...
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