符合IEC 60318-1的GRAS RA0039耳模拟器

Volume: Complex
ANSI: S3.7
IEC: 60318-1

GRAS IEC 318 RA0039 耳模拟器是一种输入阻抗与普通人耳非常相似的耳模拟器。当RA0039耦合到声源时，阻抗将加载声源，类似由人耳引起的加载。RA0039符合标准 IEC 60318-1：1998《电声学—人体头耳模拟器—第一部分：用于校准耳垫式耳机的耳模拟器》

Technology

The RA0039 is measured and calibrated according to the ITU-T Recommendation P.57 (08/96) ”Series P: Telephone transmission quality, Objective measuring apparatus: Artificial ears”.

The RA0039 is also part of the GRAS 43AA Artificial Ear and GRAS 43AD Artificial Ear.

Specifications

Polarization/Connection
0 V / CCP
Humidity range non condensing
% RH
0 to 95
ANSI standard
S3.7
IEC standard
60318-1 (former 60318)
ITU-T recommondations
P.57
CE/RoHS compliant/WEEE registered
Yes/Yes, Yes
Weight
g / oz
155 / 5.47

 
Acoustic input impedance of the RA0039

GRAS Sound & Vibration reserves the right to change specifications and accessories without notice.