Experimental study on low-power wireless monitor of rotary motion using improved energy harvesting system with piezoelectric element

Hitoshi Kitayoshi, Kunio Sawaya, Hiroki Kuwano

Research output: Contribution to journalConference article

1 Citation (Scopus)

Abstract

A battery-free wireless monitoring system of vibration waveform for rotary motion is proposed. The sensor node is composed of a replicated-mass type piezoelectric generator, a 10 bit resolution ADC, a controller for quadrature phase shift keying (QPSK) data transmission and a cavity-backed slot antennas for the modulated back scattering communications. Consumption power of the sensor node is 60 microwatt by using the piezoelectric generator, where 30 m wireless reading range is achieved at 2.45 GHz band with a continuous 50 sps vibration waveform in the rotation range of 100 rpm to 600 rpm.

Original languageEnglish
Article number6984961
Pages (from-to)174-177
Number of pages4
JournalProceedings of IEEE Sensors
Volume2014-December
Issue numberDecember
DOIs
Publication statusPublished - 2014 Dec 12
Event13th IEEE SENSORS Conference, SENSORS 2014 - Valencia, Spain
Duration: 2014 Nov 22014 Nov 5

Keywords

  • Battery-free wireless sensor
  • Modulated back scattering communication
  • Piezoelectric generator for rotary motion

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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