Characteristics of thick sol-gel lead zirconate titanate films for angular rate sensor application

S. H. Lee, T. Iijima, K. Nakamura, S. Tanaka, M. Esashi

Research output: Contribution to journalArticle

Abstract

In this study, thick sol-gel PZT(Pb(Zr1-xTix)O3) films were fabricated and their characteristics were investigated for angular rate sensor applications. The crack-free thick sol-gel PZT films were successfully deposited on silicon substrates by multiple spin-coating technique combined with rapid thermal annealing (RTA). The thickness of the PZT films is 1.5 μm, which is required by a vibration angular rate sensor for a good actuation and sensing. The remnant polarization of the PZT films is 12.0 μ C/cm2. The PZT films were applied to the vibration angular rate sensor structure, and the vibration of 1.78 μm in amplitude at the resonant frequency of 35.8kHz was obtained. In this case, the driving voltage of 5Vp-p by bulk piezoelectric materials was applied to the driving electrode with out of phase signal through voltage and inverting amplifier. The oscillating output voltage obtained by external actuation using a stacked piezo-actuator showed the values of 0.76V and 0.87V in outer/inner driving electrode at driving voltage of 5Vp-p.

Original languageEnglish
Pages (from-to)209-214
Number of pages6
JournalMaterials Research Society Symposium - Proceedings
Volume687
Publication statusPublished - 2002 Jan 1

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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