I.S. EN IEC 60118-4:2015&A1:2018現行
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
專家解讀視頻
基本信息
標準編號： I.S. EN IEC 60118-4:2015&A1:2018
標準類別：Standard
出版單位：National Standards Authority of Ireland
標準頁數：0
標準簡介
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).
