Title :
A non-harmonic motion-powered piezoelectric FM wireless sensing system
Author :
Jiang, H. ; Kiziroglou, M.E. ; Yates, D.C. ; Yeatman, E.M.
Author_Institution :
Opt. & Semicond. Devices Group, Imperial Coll. London, London, UK
Abstract :
This paper reports a wireless sensing device which is completely powered by inertial motion. Self-synchronous switching is applied to the device using switching diodes and reed switches, which allows the system to function in response to its moving proof mass. By combining piezoelectric energy harvesting and radio frequency (RF) transmission, a fully functional piezoelectric system is achieved, for the first time, allowing instantaneous wireless monitoring of signals from a passive sensor using frequency modulation (FM).
Keywords :
energy harvesting; frequency modulation; passive networks; piezoelectric transducers; reed relays; wireless sensor networks; frequency modulation; inertial motion; passive sensor; piezoelectric energy harvesting; radiofrequency transmission; reed switches; self-synchronous switching; switching diodes; wireless sensing device; Antenna measurements; Frequency modulation; Magnetic circuits; Prototypes; Sensors; Wireless communication; Wireless sensor networks; Energy harvesting; Piezoelectric pulse generator; Wireless sensor network;
Conference_Titel :
Solid-State Sensors, Actuators and Microsystems (TRANSDUCERS), 2015 Transducers - 2015 18th International Conference on
Conference_Location :
Anchorage, AK
DOI :
10.1109/TRANSDUCERS.2015.7181022
