IEC 60126-1973 标准详情
- 标准号:IEC 60126-1973
- 中文标题:测试戴耳塞机助听器用的iec基准耦合腔
- 英文标题:iec reference coupler for the measurement of hearing aids using earphones coupled to the ear by means of ear inserts
- 标准类别:国际电工委员会标准
- 发布日期:1973-01-01
Describes a coupler for loading the earphone with a specified acoustic impedance when determining the physical performance characteristics, in the frequency range 200 Hz to 5 000 Hz, of air-conduction hearing aids. The coupler described is a developm
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