标准号: |
IEC 62489-1 AMD 2-2017 |
英文名称: |
Electroacoustics - Audio-frequency induction loop systems for assisted hearing - Part 1: Methods of measuring and specifying the performance of system components; Amendment 2 |
中标分类: |
电子元器件与信息技术>>电声器件 |
发布日期: |
2017-1101 |
发布单位: |
IX-IEC |
标准状态: |
请与本站工作人员进行确认 |
ICS分类: |
0>>0 |
起草单位/标准公告: |
IEC/TC 29 Elektroakustik;IEC/TC 29 Electroacoustics;CEI/CE 29 Electroacoustique |
正文语言: |
双语(英,法) |
原文名称: |
électroacoustique - Systèmes de boucles d'induction audiofréquences pour améliorer l'audition - Partie 1: Méthodes de mesure et de spécification des performances des composants de systèmes; Amendement 2 |
页数: |
9P.;A4 |
附注: |
History:IEC 62489-1 AMD 2-2017-11;IEC 29/955/CDV-2017-06 |
被代替标准: |
IEC 29/955/CDV-2017 |
内容提要(EN): |
Acoustics;Amplifiers;Audibility;Audio amplifier;Audio appliances;Audiofrequencies;Audiometry;Data of the manufacturer;Electrical engineering;Electroacoustics;Electromagnetic induction;Field strength (electric);Frequencies;Hearing aids;Impedance;Induction;Induction loops;Input voltage;Interfering noise;Magnetic field measurement;Magnetic field strength;Magnetic fields;Measurement;Measurement conditions;Measuring techniques;Methods for measuring;Neck loops;Noise levels;Performance in service;Physical properties;Ratings;Specification (approval);Testing |
归属: |
国际 |