Compact and simple apparatus for measuring direct piezoelectricity

Mamoru Fukunaga, Yoshiaki Uesu

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)


A new instrument for measuring piezoelectric coefficients has been developed. The principle of this instrument is simple, namely, applying a uniaxial stress to a sample and measuring the induced charge. The stress applied to the sample is measured as an electric signal. The main part of the instrument is shaped like a small probe with an electrode at the tip for measuring the charge, and piezoelectric coefficients can be measured easily and quickly by pressing the probe on samples by hand. The piezoelectric coefficient d33 of ferroelectric Ba1-xLaxTi1-xCrxO3 ceramics were measured using the probe, and it is revealed that the compound shows a maximum d33 of 70 pC/N when x is approximately 0.014-0.018.

Original languageEnglish
Pages (from-to)6115-6117
Number of pages3
JournalJapanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
Issue number9 B
Publication statusPublished - Sept 2003


  • BaLaTiCr O
  • Perovskite
  • Piezoelectricity
  • Q-F probe

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)


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