Title :
Piezoelectric switch to activate event-driven wireless sensor node by several Hz of vibration
Author :
Kobayashi, T. ; Okada, H. ; Gang, V.Z. ; Maeda, R. ; Masuda, T. ; Itoh, T.
Author_Institution :
Nat. Inst. of Adv. Ind. Sci. & Technol. (AIST), Tsukuba, Japan
Abstract :
The present study describes the MEMS-based piezoelectric switch to activate the event-driven wireless sensor node for chicken health monitoring system. We have fabricated the switch composed of “S” shaped piezoelectric cantilever and proof mass, where the resonance is 24 Hz. When the switch has been vibrated at 4, 6, 8, and 12 Hz, which is close to the chicken movement frequency, the input vibration was converted into the resonant one through superharmonic resonance leading to enough voltage to activate event-driven operation.
Keywords :
condition monitoring; microsensors; piezoelectric devices; switches; wireless sensor networks; MEMS-based piezoelectric switch; chicken health monitoring system; event-driven wireless sensor node; frequency 24 Hz; piezoelectric switch; superharmonic resonance; vibration; Frequency measurement; Resonant frequency; Switches; Vibrations; Voltage measurement; Wireless communication; Wireless sensor networks; Event-driven; Piezoelectric; Superharmonic resonance; Wireless sensor network;
Conference_Titel :
Solid-State Sensors, Actuators and Microsystems Conference (TRANSDUCERS), 2011 16th International
Conference_Location :
Beijing
Print_ISBN :
978-1-4577-0157-3
DOI :
10.1109/TRANSDUCERS.2011.5969157
