GRAS AL0030 Production Line Acoustic Test Chamber

Self Insertion Loss: >25 dB
CCP Microphone set

GRAS AL0030 Production Line Acoustic Test Chamber

Technology

Introduction

The GRAS AL0030 Production Line Acoustic Test Chamber is an anechoic test chamber for acoustic production line testing of mobile devices, for example cell phones, tablets, bluetooth speaker systems and similarly sized portable acoustic devices. It provides a flexible platform that can be configured to suit specific requirements.

Design

It is built from medium density fibre board lined with acoustic damping material. A large opening at the back of the chamber allows easy access to the chamber for configuring the test setup. The chamber has shock and vibration absorbing feet that prevent vibration from the outside from influencing the measurements.

It has a drawer with multi-adjustable holders for easy and safe mounting and removal of the device under test (DUT). It can hold small and medium sized portable devices up to 300 x 200 mm (12 x 8).

The test chamber has four fixing points for microphones and sound source, two at the top and two at the bottom panel. Holders for a total of four microphones and/or sound sources can be mounted at these fixing points. Additionally, a microphone can be attached to the drawer.

A connector panel that can be configured with 8 or 10 (depending on drawer size) user-specified connectors provides interface to external instruments (see Ordering Info for details).

A Flexible and Configurable Test Platform

 AL0030 provides a flexible test platform that can be configured to suit specific needs. 

  • The basic configuration includes user selectable accessories for immediate acoustic testing.
  • Additionally, the test chamber can be fittet with a sound source and an artifial ear.
  • If you have needs that are not covered by these options, we can customize it to suit your specific needs. Contact (your local) GRAS (representative) to initiate the process.

As standard the AL0030 comes with a basic suite of accessories needed for audio response testing. The following are included:

  • The Acoustic Test Chamber
  • Choice of one microphone set
  • Choice of a set of  DUT holders
  • Choice of one microphone holder
  • One connector panel drawer:  select between standard or large 
  • One cable for the microphone set

The connector plate can be ordered blind for customization.

Included and optional accessories for AL0030 are listed under the tab Ordering info.

Quality and warranty

The Acoustic Test Chamber is covered by a two year warranty. For cables and accessories, the warranty for the specific item is valid.

Specifications

Connector type
BNC
Weight
g / oz
39 kg


Self Insertion Loss measured in reverberant conditions

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

Ordering info

Included items

GRAS AL0030

Acoustic Test Chamber

GRAS AA0079

Microdot-BNC cable, 1 m

 

Included Items - user selections

Reference Microphone

GRAS 46BL

1/4" CCP Pressure Standard Microphone Set, High Sensitivity

GRAS 46BD

1/4" CCP Pressure Standard Microphone Set

GRAS 46BE

1/4" CCP Free-field Standard Microphone Set

 

Microphone Holder

GRAS OP0040

Microphone Holder for top/bottom mounting

GRAS OP0041

Microphone Holder for mounting in the drawer

 

DUT holders—one set of 4

GRAS OP0030

DUT Holder, low placement, small

GRAS OP0031

DUT Holder, low placement, large

GRAS OP0032

DUT Holder, top placement

 

Connector Panel

GRAS OP0050

Connector panel for AL0030—Standard drawer with space for 8 selectable connectors

GRAS OP0050-S2

Connector panel for AL0030-S2—Large drawer with space for 10 selectable connectors

 

Selectable Connector-panel Connector Options

AE2197

BNC Socket, Female

AE2198

RCA Socket, Female

AE2199 XLR Connector 3 pol, Female
AE2200 Loudspeaker connector plug, SpeakON, 4 way
AE2201 S-VHS, Female, to S-VHS, Female
AE2202 ¼ jack, 3 pol
AE2203 D-sub 9 pin
AE2204 HDMI-Connector
AE2205 Ethernet connector
AE2207 USB-B adapter

NOTE: Please contact Denne e-mail adresse bliver beskyttet mod spambots. Du skal have JavaScript aktiveret for at vise den. for help configuing the Production Line Acoustic Test Chamber. 

Optional Items - not included

Sound Source

GRAS 44AA

Mouth Simulator according to ITU-T Rec. P51 with built-in power amplifier

GRAS 44AB Mouth Simulator according to ITU-T Rec. P51

 

Sound Source Holder

GRAS OP0045

Sound Source Holder with swivel head

GRAS OP0046 Sound Source Holder with swiwel head, heavy duty version

 

Ear Simulator

GRAS 43AH

CCP Ear Simulator for Production Testing Based on ITU-T Rec. P57 Type 3.2 Low-leak

GRAS 43AI CCP Ear Simulator for Production Testing Based on ITU-T Rec. P57 Type 3.2 High-leak

 

Cables

GRAS AA0032

BNC-BNC Cable, 0.5 m

GRAS AA0033

BNC-BNC Cable, 1 m

GRAS AA0034

BNC-BNC Cable, 2 m

GRAS AA0035

BNC-BNC Cable, 3 m

GRAS AA0070

Microdot-BNC cable, 3 m

GRAS AA0073-CL

Customized Length Microdot - BNC Cable

 

Miscellaneous

GRAS OP0061 Set of 2 drawer latches
GRAS 12BA, -BE or -BB 1-, 2- or -4-Channel  CCP Power Modules with TEDS Support
GRAS 12AL 1-Channel CCP Power Module with A-weighting filter
GRAS 12AX 4-Channel CCP Power Module with Gain
GRAS 42AP Intelligent Pistonphone, Class 0
GRAS 42AG Multifunction Sound Calibrator, Class 1

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

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