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IEC 60118-4 Ed. 2.0被替代

Electroacoustics - Hearing aids Part 4: Induction loop systems for hearing aid purposes - Magnetic field strength

出版：International Electrotechnical Committee

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基本信息

標(biāo)準(zhǔn)編號： IEC 60118-4 Ed. 2.0

發(fā)布時間：2006/10/27 0:00:00

標(biāo)準(zhǔn)類別：Standard

出版單位：International Electrotechnical Committee

標(biāo)準(zhǔn)頁數(shù)：81

標(biāo)準(zhǔn)簡介

Applies 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. The standard specifies requirements for the field strength in audio-frequency induction loops for hearing aid purposes, which will give adequate signal-to-noise ratio without overloading the hearing aid. The standard also specifies the minimum frequency response requirements for acceptable intelligibility. Methods for measuring the magnetic field strength are specified, and information is given on appropriate measuring equipment (see Annex B), information that should be provided to the operator and users of the system (see Annex C), and other important considerations.

本標(biāo)準(zhǔn)替代的舊標(biāo)準(zhǔn)

IEC 60118-4 Ed. 1.0

替代本標(biāo)準(zhǔn)的新標(biāo)準(zhǔn)

IEC 60118-4 Ed. 3.0

等同采用的國際標(biāo)準(zhǔn)

OVE/ONORM EN 60118-4:2007 - Identical

PN EN 60118-4:2007 - Identical

SS EN 60118-4 Ed. 2 (2007) - Identical

I.S. EN 60118-4:2006 - Identical

BS EN 60118-4:2006 - Identical

NEN EN IEC 60118-4:2007 - Identical

BS 6083-4:1981 - Similar