IEC 60318-5 Ed. 1.0現(xiàn)行
Electroacoustics - Simulators of human head and ear Part 5: 2 cm3 coupler for the measurement of hearing aids and earphones coupled to the ear by means of ear inserts
出版：International Electrotechnical Committee
專家解讀視頻
Describes an acoustic coupler for loading an earphone or hearing aid with a specified acoustic impedance when determining its physical performance characteristics, in the frequency range 125 Hz to 8 kHz. It is suitable for air conduction hearing aids and earphones, coupled to the ear by means of ear inserts e.g. ear moulds or similar devices. The sound pressure developed by an earphone is not, in general, the same in the coupler as in a person's ear. However, it can be used as a simple and ready means for the exchange of specifications and of physical data on hearing aids and for the calibration of specified insert earphones used in audiometry. This first edition of IEC 60318-5 cancels and replaces IEC 60126:1973.
SS EN 60318-5 Ed. 1 (2007) - Identical
I.S. EN 60318-5:2006 - Identical
NF EN 60318-5:2006 - Identical
BS EN 60318-5:2006 - Identical
CEI EN 60318-5 Ed. 1 (2007) - Identical
UNE EN 60318-5:2007 - Identical
PN EN 60318-5:2006 - Identical
NEN EN IEC 60318-5:2006 - Identical
OVE/ONORM EN 60318-5:2007 - Identical
