标准水听器

[中文适用范围]： 涵盖标准压电水听器的设计要求以及指定其特性所需的数据。给出了适合作为 IEC 标准水听器进行校准的仪器的要求和特性。 [外文原描述]： Gives requirements and characteristics to specify a hydrophone which is suitable as an IEC Standard Hydrophone for calibration purposes, to be used as a laboratory standard for comparison with other hydrophones intended for daily use.