EN IEC 60318-8:2022
电声学 人头和耳朵模拟器 第8部分：用于通过耳塞耦合到耳朵的助听器和耳机的高频测量的声耦合器

Electroacoustics - Simulators of human head and ear - Part 8: Acoustic coupler for high-frequency measurements of hearing aids and earphones coupled to the ear by means of ear inserts

非常抱歉，我们暂时无法提供预览，您可以试试： 免费下载 EN IEC 60318-8:2022 前三页，或者稍后再访问。

您也可以尝试购买此标准，
点击右侧 “购买” 按钮开始采购（由第三方提供）。

注意： 点击下载后，生成下载文件时间比较长，请耐心等待......

标准号

EN IEC 60318-8:2022

发布

2022年

发布单位

欧洲电工标准化委员会

当前最新

EN IEC 60318-8:2022

 

 

适用范围

IEC 60318-8:2022 describes an acoustic coupler for loading a hearing aid or insert earphone with a specified acoustic impedance when testing its acoustic performance, in the frequency range up to 16 kHz. It is suitable for air-conduction hearing aids and earphones, coupled to the ear by means of ear inserts, earmoulds or similar devices. The acoustic coupler does not simulate the human ear. However, it has an effective volume of only 0,4 cm3, which is small enough not to produce significant resonances in the coupler in the frequency range below 16 kHz. Therefore, it will load the earphone with a known acoustic impedance, which allows repeatable measurements with low uncertainty to be obtained on earphones used in extended high-frequency audiometry.

EN IEC 60318-8:2022相似标准

推荐