Multidirectional cylindrical piezoelectric force sensor: Design and experimental validation

Ye Rim Lee, Justin Neubauer, Kwang Jin Kim, Youngsu Cha

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

A common design concept of the piezoelectric force sensor, which is to assemble a bump structure from a flat or fine columnar piezoelectric structure or to use a specific type of electrode, is quite limited. In this paper, we propose a new design of cylindrical piezoelectric sensors that can detect multidirectional forces. The proposed sensor consists of four row and four column sensors. The design of the sensor was investigated by the finite element method. The response of the sensor to various force directions was observed, and it was demonstrated that the direction of the force applied to the sensor could be derived from the signals of one row sensor and three column sensors. As a result, this sensor proved to be able to detect forces in the area of 225 about the central axis of the sensor. In addition, a cylindrical sensor was fabricated to verify the proposed sensor and a series of experiments were performed. The simulation and experimental results were compared, and the actual sensor response tended to be similar to the simulation.

Original languageEnglish
Article number4840
Pages (from-to)1-13
Number of pages13
JournalSensors (Switzerland)
Volume20
Issue number17
DOIs
Publication statusPublished - 2020 Sep 1
Externally publishedYes

Keywords

  • Cylindrical sensor
  • Force sensor
  • Multidirectional
  • Piezoelectricity

ASJC Scopus subject areas

  • Analytical Chemistry
  • Biochemistry
  • Atomic and Molecular Physics, and Optics
  • Instrumentation
  • Electrical and Electronic Engineering

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