An AlN cantilever for a wake-up switch triggered by air pressure change

Y. Kaiho, Hidetoshi Takahashi, Y. Tomimatsu, T. Kobayashi, K. Matsumoto, I. Shimoyama, T. Itoh, R. Maeda

Research output: Contribution to journalConference article

4 Citations (Scopus)

Abstract

This research reports an AlN cantilever with an air chamber for a wake-up switch triggered by air pressure change. The proposed sensor is designed to fulfil both high sensitivity and low power consumption. By combining an air chamber to the one side of the AlN cantilever surface, the barometric pressure change generates a piezoelectric voltage. Thus, a wake-up switch triggered by air pressure change can be achieved using an AlN cantilever. The size of the fabricated AlN cantilever was 2000 μm × 1000 μm × 2 μm. The sensitivity to static differential pressure was 11.5 mV/Pa at the range of -20 Pa to 20 Pa. We evaluated the response of the sensor, which was composed of the AlN cantilever and the chamber of 60 ml in volume, when air pressure change was applied. The output voltage increased with increasing the applied air pressure change. It was observed that the maximum output voltage of 50 mV was generated when the air pressure change was 13 Pa.

Original languageEnglish
Article number012122
JournalJournal of Physics: Conference Series
Volume476
Issue number1
DOIs
Publication statusPublished - 2013 Jan 1
Externally publishedYes
Event13th International Conference on Micro and Nanotechnology for Power Generation and Energy Conversion Applications, PowerMEMS 2013 - London, United Kingdom
Duration: 2013 Dec 32013 Dec 6

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wakes
switches
air
chambers
electric potential
differential pressure
static pressure
output
sensitivity
sensors
atmospheric pressure

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Kaiho, Y., Takahashi, H., Tomimatsu, Y., Kobayashi, T., Matsumoto, K., Shimoyama, I., ... Maeda, R. (2013). An AlN cantilever for a wake-up switch triggered by air pressure change. Journal of Physics: Conference Series, 476(1), [012122]. https://doi.org/10.1088/1742-6596/476/1/012122

An AlN cantilever for a wake-up switch triggered by air pressure change. / Kaiho, Y.; Takahashi, Hidetoshi; Tomimatsu, Y.; Kobayashi, T.; Matsumoto, K.; Shimoyama, I.; Itoh, T.; Maeda, R.

In: Journal of Physics: Conference Series, Vol. 476, No. 1, 012122, 01.01.2013.

Research output: Contribution to journalConference article

Kaiho, Y, Takahashi, H, Tomimatsu, Y, Kobayashi, T, Matsumoto, K, Shimoyama, I, Itoh, T & Maeda, R 2013, 'An AlN cantilever for a wake-up switch triggered by air pressure change', Journal of Physics: Conference Series, vol. 476, no. 1, 012122. https://doi.org/10.1088/1742-6596/476/1/012122
Kaiho, Y. ; Takahashi, Hidetoshi ; Tomimatsu, Y. ; Kobayashi, T. ; Matsumoto, K. ; Shimoyama, I. ; Itoh, T. ; Maeda, R. / An AlN cantilever for a wake-up switch triggered by air pressure change. In: Journal of Physics: Conference Series. 2013 ; Vol. 476, No. 1.
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