I.S. EN IEC 60118-4:2015&A1:2018现行
Electroacoustics - Hearing aids - Part 4: Induction-loop systems for hearing aid purposes - System performance requirements (IEC 60118-4:2014/A1:2017)
出版：National Standards Authority of Ireland
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基本信息
标准编号： I.S. EN IEC 60118-4:2015&A1:2018
标准类别：Standard
出版单位：National Standards Authority of Ireland
标准页数：0
标准简介
This part of IEC 60118 is applicable to audio-frequency induction-loop systems producing an alternating magnetic field at audio frequencies and intended to provide an input signal for hearing aids operating with an induction pick-up coil (telecoil).
