Title :
A wireless temperature sensor powered by a piezoelectric resonant energy harvesting system
Author :
Peng Wang ; Gray, Robert ; Zenghui Wang ; Feng, Philip X.-L
Author_Institution :
Electr. Eng. & Comput. Sci., Case Western Reserve Univ., Cleveland, OH, USA
Abstract :
We report on experimental demonstration of a wireless temperature sensor node (WTSN) powered by a piezoelectric resonant energy harvesting system. The energy harvesting circuit stores the energy generated by a piezoelectric resonant transducer into a capacitor, and uses the stored energy to power the temperature sensor and its associated signal processing circuits for wireless signal transmission. The main functions of the harvesting system are implemented by discrete components together with a power management application specific integrated circuit (ASIC). The resulting WTSN transmits measured temperature data over a distance of 10m, in real time, and consumes ~4μW to ~13μW power (for transmission intervals from 10min to 10s, respectively), which is supplied entirely by the piezoelectric resonant energy harvester.
Keywords :
application specific integrated circuits; capacitors; crystal resonators; energy harvesting; piezoelectric transducers; signal processing equipment; temperature measurement; temperature sensors; wireless sensor networks; ASIC; WTSN; capacitor; piezoelectric resonant energy harvesting system; piezoelectric resonant transducer; power management application specific integrated circuit; signal processing circuit; temperature measurement; time 10 min to 10 s; wireless signal transmission; wireless temperature sensor node; Frequency measurement; Power demand; Temperature measurement; Temperature sensors; Transducers; Wireless communication; Wireless sensor networks; energy harvesting; lead zirconate titantate (PZT); piezoelectric resonator; transducer; wireless temperature sensor;
Conference_Titel :
Frequency Control Symposium & the European Frequency and Time Forum (FCS), 2015 Joint Conference of the IEEE International
Conference_Location :
Denver, CO
Print_ISBN :
978-1-4799-8865-5
DOI :
10.1109/FCS.2015.7138850
