BS ISO 21819-1:2018规定了在高温条件下测量压电细陶瓷和其他压电设备压电性能的方法，其中机电耦合系数是基于使用阻抗分析仪测量共振/反共振频率来确定的。交叉引用:EN 50324-2IEC 60584-1EN 50324-1IEC 60584-2EN 50324-3JEITA EM.4501购买本文件时可获得的所有现行修订均包含在购买本文件中。

BS ISO 21819-1:2018 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.Cross References:EN 50324-2IEC 60584-1EN 50324-1IEC 60584-2EN 50324-3JEITA EM. 4501All current amendments available at time of purchase are included with the purchase of this document.