用于生产测试的 GRAS 43AI CCP 耳模拟器，基于 ITU-T Rec. P57 3.2 型高泄漏

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

带 TEDS 的 GRAS 43AI 耳模拟器由 ITU-T Rec. P.57 2 类耳部模拟器和 3.2 类简化高泄漏耳廓模拟器，用于在生产线上对电话听筒、接收器和接收器/扬声器模块进行 ITU-T 标准化测试。

Technology

43AI consists of the ITU-T Rec. P57 Type 2 Ear Simulator and Type 3.2 Simplified High-leak Pinna Simulator for testing leak tolerant receivers

Besides the ear and pinna simulators, GRAS 43AI includes a detachable front-plate that can be machined to make well-defined testing on various receiver related items. A calibration adapter to be used with GRAS 42AA Pistonphone/GRAS 42AP Pistonphone is included. 

TEDS Compatibility

43AI is IEEE 1451.4 TEDS v. 1.0 compliant. If your measurement platform supports Transducer Electronic Data Sheets (TEDS), you will be able to read and write data like properties and calibration data.

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
1.570
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
CE/RoHS compliant/WEEE registered
Yes/Yes/Yes
Connector type
Microdot 10/32
Weight
g / oz
0.8 / 28.219

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

Ordering info

Included

GRAS RA0045-S1 Prepolarized Ear Simulator According to IEC 60318-4 (60711)
GRAS 26CB ¼'' CCP Preamplifier
RS0010 Generic Adapter Ring
RA0119 Pistonphone Adapter

Optional

GRAS AA0070 3 m Microdot - BNC cable

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