GRAS 43AD-S1 CCP 耳模拟器套件，符合 ITU-T Rec. P57 类型 1

Connection: 0 V/CCP
Volume: Complex
Dyn range: 25 dB(A) to 150 dB
ANSI: S3.7
IEC: 60318-1

带 TEDS 的 GRAS 43AD-S1 人工耳是用于声学发射机和扬声器声学测量的完整组件。它可以与电话测试头集成在一起，也可以永久安装在生产测试线上。

Technology

The GRAS 43AD-S1 is a complete assembly for acoustical measurements on acoustical transmitters and loudspeakers in accordance with:

  • IEC 60318-1 & -2  Electroacoustics – Simulators of human head and ear – Part 1: Ear simulator for the calibration of supra-aural earphones, 1998-07
  • ITU-T Recommendation P.57 (08/96) Series P: Telephone transmission quality, Objective measuring apparatus: Artificial ears.

It can be integrated with a telephone test head or permanently installed on a production test line.

The 43AD-S1 comprises:

 An externally polarized version is available, GRAS 43AD.

TEDS Compatibility

43AD-S1 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 preamplifier @ +28 V / ±14 V power supply
dB
150
Theoretical dynamic range upper limit with GRAS preamplifier @ +120 V / ±60 V power supply
dB
164
Set sensitivity @ 250 Hz (±2 dB)
mV/Pa
12
Set sensitivity @ 250 Hz (±2 dB)
dB re 1V/Pa
-38.5
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
IEC standard
60318-1 (former 60318)
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
1.65 / 58.202

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

Ordering info

Included

GRAS RA0039 IEC 318 Ear Simulator
GRAS 40AG ½" Pressure Microphone, Wide Frequency
GRAS 26AK ½" Preamplifier
GRAS AA0034 3 m Extension Cable
GR0332 Snap Coupling (female)
GR0336 Snap Coupling (male)
GR0339 for testing earphones fitted with fluid cushions

Optional

GRAS 12AK Power Module
GRAS 42AA Pistonphone

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