A self-powered vibration sensor with wide bandwidth

  • Yunjia Li
  • , Yuzhu Wang
  • , Qi Cao
  • , Jian'An Cao
  • , Dayong Qiao

Research output: Contribution to journalArticlepeer-review

37 Scopus citations

Abstract

A self-powered vibration sensor based on electromagnetic induction is presented in this paper. The vibration sensor is implemented with stacked flexible coils and polymeric springs. The stacked flexible coil enables large output signal, while long and flexible springs enable high sensitivity and wide linear range of the sensor. At resonance, the sensor has a sensitivity of 1.83 V/g and a maximum resolution of 0.002 g. In the high-frequency range, where the sensor output is frequency-independent (100-3000 Hz), the sensor has a sensitivity of 66.5 mV/g, a maximum resolution of 0.05 g, and a measurement range up to 8.5 g.

Original languageEnglish
Article number8638792
Pages (from-to)560-568
Number of pages9
JournalIEEE Transactions on Industrial Electronics
Volume67
Issue number1
DOIs
StatePublished - Jan 2020

Keywords

  • Energy harvesting
  • flexible printed circuits
  • inductive transducers
  • low-power electronics
  • vibration measurement

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