GRAS 43AE-S1 CCP 耳模拟器套件，符合 ITU-T Rec. P57 类型 3.2

Connection: 0 V/CCP
Volume: Complex
Dyn range: 25 dB(A) to 150 dB
ANSI: S3.7

GRAS 43AE-S1 耳模拟器符合 ITU-T Rec. P57 3.2 型预极化耳模拟器用于测试耳上耳机、电话听筒和扬声器，符合国际要求： ITU-T 建议 P.57 (08/96) "P 系列：电话传输质量。客观测量仪器： 人工耳"。

Technology

The 43AE-S1 is an IEC 60318-4 (60711) Ear Simulator for acoustical testing of supra-aural earphones, telephone handsets and loudspeakers in accordance with

  • IEC60318-4 Occluded-ear simulator for the mesurem,ent of earphones coupled to the ear by ear inserts
  • ITU-T Recommendations P57 (08/96) Series P: Telephone transmission quality, Objective measuring apparatus: Artificial ears

The 43AE-S1 comprises:

Specifications

Theoretical dynamic range lower limit with GRAS preamplifier
dB(A)
25
Theoretical dynamic range upper limit with GRAS CCP preamplifier
dB
150
Set sensitivity @ 250 Hz (±2 dB)
mV/Pa
12
Set sensitivity @ 250 Hz (±2 dB)
dB re 1V/Pa
-38.5
Coupler volume
mm³
1260 @ 500 Hz
Resonance frequency
kHz
Low 713.8, High 1570
Temperature range, operation
°C / °F
- 30 to 60 / -22 to 140
Temperature coefficient @250 Hz
dB/°C / dB/°F
- 0.01 / -0.006
Humidity range non condensing
% RH
0 to 80
ANSI standard
S3.7
ITU-T recommondations
P.57 Type 1
CE/RoHS compliant/WEEE registered
Yes/Yes/Yes
Connector type
3 m 7-pin LEMO
Weight
g / oz
1.05 / 37.038

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

Ordering info

Miscellaneous

GRAS RA0119 Pistonphone adapter

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