ISO 21819-1:2018 Preview
Fine ceramics (advanced ceramics, advanced technical ceramics) -- Characteristic of piezoelectric properties under high-load conditions -- Part 1: Resonant-antiresonant method under high-temperature conditions
This document specifies a method of measuring piezoelectric properties of piezoelectric fine ceramics and other piezoelectric devices under high-temperature conditions, where the electromechanical coupling coefficient is determined based on measurements of resonance/antiresonance frequencies using impedance analysers.
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