A piezoelectric flow sensor for use as a wake-up switch for a wireless sensor network node

Yutaka Tomimatsu; Hidetoshi Takahashi; Kenta Kuwana; Takeshi Kobayashi; Kiyoshi Matsumoto; Isao Shimoyama; Toshihiro Itoh; Ryutaro Maeda

doi:10.1016/j.mechatronics.2013.02.003

A piezoelectric flow sensor for use as a wake-up switch for a wireless sensor network node

Yutaka Tomimatsu, Hidetoshi Takahashi, Kenta Kuwana, Takeshi Kobayashi, Kiyoshi Matsumoto, Isao Shimoyama, Toshihiro Itoh, Ryutaro Maeda

Research output: Contribution to journal › Article › peer-review

11 Citations (Scopus)

Abstract

Power management is a fundamental issue in wireless sensor networks. In this paper, a piezoelectric flow sensor is proposed for use as a wake-up switch in a wireless sensor node to reduce power consumption. A cantilever with a Pb (Zr, Ti) O₃ (PZT) thin film detects airflow changes surrounding the wireless sensor node. A prototype of the flow sensor is used to determine the relationship between the change in flow velocity and piezoelectric voltage of the cantilever. The fabricated sensor generates a piezoelectric voltage of several millivolts when the flow velocity changes at a rate of approximately 1 m/s.

Original language	English
Pages (from-to)	893-897
Number of pages	5
Journal	Mechatronics
Volume	23
Issue number	7
DOIs	https://doi.org/10.1016/j.mechatronics.2013.02.003
Publication status	Published - 2013 Oct
Externally published	Yes

Keywords

Differential pressure sensor
Piezoelectric cantilever
Reduction of power consumption
Wake-up switch
Wireless sensor network

ASJC Scopus subject areas

Mechanical Engineering
Computer Science Applications
Electrical and Electronic Engineering

Access to Document

10.1016/j.mechatronics.2013.02.003

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Cite this

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abstract = "Power management is a fundamental issue in wireless sensor networks. In this paper, a piezoelectric flow sensor is proposed for use as a wake-up switch in a wireless sensor node to reduce power consumption. A cantilever with a Pb (Zr, Ti) O3 (PZT) thin film detects airflow changes surrounding the wireless sensor node. A prototype of the flow sensor is used to determine the relationship between the change in flow velocity and piezoelectric voltage of the cantilever. The fabricated sensor generates a piezoelectric voltage of several millivolts when the flow velocity changes at a rate of approximately 1 m/s.",

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AU - Kuwana, Kenta

AU - Kobayashi, Takeshi

AU - Matsumoto, Kiyoshi

AU - Shimoyama, Isao

AU - Itoh, Toshihiro

AU - Maeda, Ryutaro

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