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  • Acoustical Test & Measurement Chambers

    Controlled Acoustic Environment ● Repeatable Test Accuracy ● Economical ● Durable

    IAC can design and manufacture engineered acoustical test chambers that will either isolate the test chamber from the ambient providing a specific, controlled interior acoustical environment in which to perform accurate and repeatable testing; or to enclose the test and contain and isolate high sound levels generated by the test from reaching the ambient.

    The design method and materials of construction will depend largely upon the performance criteria specified for any given project.  The most common project will be shipped as modular components and assembled on site. IAC will also provide factory pre-assembled chambers that are portable robust structures complete with isolated floors when required.

    Most typical applications can be designed around a version of our Moduline™ modular acoustical panel line as the basis of construction featuring a wide range of performance in a single wall chamber design.  For those applications specifying more stringent performance criteria, we can enhance the panel construction to achieve greater performance, utilize a double-wall chamber design or a combination of thereof. 

    IAC can design and manufacture engineered test chambers that will provide a specific, controlled acoustical environment in which to perform accurate and repeatable testing of many types.  From a table top chamber to a small vehicle test cell, we will custom design a system specifically for your testing criteria.  Our acoustical test cambers provide high sound isolation from ambient environment, low interior sound level, with reverberation or anechoic characteristics. We design acoustical test chambers for the automotive, energy, telecommunications, aerospace and consumer products industries as well as for use by universities, OEM’s and government clients. 

    Using our high STC rated modular acoustical metal panels to construct the superstructure and tuned anechoic wedges to line the interior, we can design systems to provide interior sound levels of 35 dBA or less with low frequency cut off from 80 Hz to 250 Hz.We offer a variety of accessories such as automatic sliding parts doors, integrated ventilation systems, data entry sleeves, interior lighting, etc., to meet your project requirements.

  • For applications requiring specific interior sound absorption or anechoic characteristics and low frequency energy cut-offs, we will utilize a variety of interior sound absorbing components including perforated metal cladding, fiberglass absorbers and foam anechoic wedges of various depths and densities. Typical applications include:

    • Dynamometer Test Cells
    • Parts testing and QC
    • Product R&D Chambers
    • Endurance Testing
    • Electronics and electrical component testing
    • Small Sample Materials STC Testing
    • OEM Product Quality Control Testing
    • Shake and Rattle Testing
    • Speaker and Sound System Testing
    • Small Appliance Testing
    • Small Sample STC Testing
    • Aerospace Parts Fatigue Testing
    • Science and Biomed Testing
    • Speech Isolation Chambers
  • Design Features:

    • Single wall panel design up to STC-58
    • Interior sound levels of 35 dBA or Less
    • Low frequency cut-off From 80 Hz to 250 Hz
    • Modular or unitized construction
    • Pre-assembled small parts test chambers
    • Single or double wall design
    • Intrinsically quiet interior lighting
    • Silenced ventilation systems
    • Instrumentation sleeves and cable passes
    • Free field anechoic interior characteristics
    • Diffuse field reverb interior characteristics
    • Meets ASTM E84 Class I Fire Rating
  • MODULINE™ Modular Acoustical Panels

    IAC Part Number / Style

    Exterior Surface

    Interior Surface

    Nominal Thickness (Inches)

    Nominal Weight (lb/sq.ft.)

    SOUND TRANSMISSION LOSS – dB

    Octave Band Center Frequency – Hz

    125

    250

    500

    1000

    2000

    4000

    STC

    PWL-235

    Solid

    Perf

    2.0

    3.9

    20

    22

    32

    42

    50

    57

    35

    PWL-237

    Solid

    Perf

    2.0

    5.0

    20

    24

    33

    45

    50

    57

    37

    PWL-441

    Solid

    Perf

    4.0

    4.5

    22

    26

    40

    50

    50

    57

    41

    PWL-444

    Solid

    Perf

    4.0

    5.5

    26

    30

    42

    51

    55

    59

    44

    PWL-452

    Solid

    Solid

    4.0

    6.0

    28

    43

    55

    63

    63

    69

    52

    PWL-455

    Solid

    Solid

    4.0

    10.9

    40

    49

    52

    55

    57

    63

    55

    PWL-656

    Solid

    Perf

    6.0

    12.7

    39

    46

    52

    57

    61

    63

    56

    PWL-857

    Solid

    Perf

    8.0

    12.9

    38

    48

    56

    59

    62

    67

    57

    PWL-858

    Solid

    Perf

    8.0

    11.6

    40

    48

    56

    60

    62

    67

    58

    Double Glazed Window

    Temp

    Temp

    4.0

    N/A

    32

    35

    43

    48

    46

    52

    45

    Double Glazed Window - F

    Temp

    Temp

    4.0

    N/A

    32

    35

    43

    50

    48

    53

    47

    Sound Transmission Loss Data per ASTM E90-09 and E413-10 Lab Tests

    MODULINE™ Modular Acoustical Panels

    IAC Part Number / Style

    Exterior Surface

    Interior Surface

    Nominal Thickness (Inches)

    Wrapped Fill Y/N

    SOUND ABSORPTION COEFFICIENTS

    Octave Band Center Frequency – Hz

    125

    250

    500

    1000

    2000

    4000

    NRC

    2” Thick Panel

    Solid

    Perf

    2.0

    N

    0.21

    0.61

    1.01

    1.07

    1.07

    0.98

    0.95

    2” Thick Panel

    Solid

    Perf

    2.0

    Y

    0.43

    0.64

    0.81

    0.87

    0.69

    0.53

    0.75

    4” Thick Panel

    Solid

    Perf

    2.0

    N

    0.75

    1.05

    1.10

    1.07

    1.03

    0.94

    1.00

    4” Thick Panel

    Solid

    Perf

    2.0

    Y

    0.83

    0.61

    1.02

    1.02

    1.10

    0.94

    0.90

    6” Thick Panel

    Solid

    Perf

    4.0

    N

    0.75

    1.05

    1.10

    1.07

    1.03

    0.94

    1.00

    6” Thick Panel

    Solid

    Perf

    4.0

    Y

    0.83

    0.61

    1.02

    1.02

    1.10

    0.94

    0.90

    8” Thick Panel

    Solid

    Perf

    4.0

    N

    0.75

    1.05

    1.10

    1.07

    1.03

    0.94

    1.00

    8” Thick Panel

    Solid

    Perf

    4.0

    Y

    0.83

    0.61

    1.02

    1.02

    1.10

    0.94

    0.90

    Hard Panels

    Solid

    Solid

    N/A

    Sound Absorption Data per ASTM C423-09a and E795-05 Lab Tests

    Additional information on chemical resistance, flammability, etc., available upon request.

    Edited with Online HTML Editor

  • Available Options:

    • RFI / EMI Shielding
    • X-Ray Shielding
    • Ballistic Impact Resistance

    Available Doors & Windows

    Compatible acoustical doors and window are available in almost any size and configuration to meet the design criteria.

    • Wide range of single and double leaf personnel doors available in custom or industry standard sizes with acoustical ratings to match the project requirements up to STC-52
    • Tandem doors available for high isolation chambers
    • Sliding doors available in similar sizes and performance
    • Automated parts doors
    • Many styles of multi-layer glazed windows using tempered, laminated, or wire reinforced glass; polycarbonate and impact / bullet resistant units to UL Level 3
    • Sloping or cantilevered windows and walls available

    Ventilation & Electrical Options

    • Complete range of silenced ventilation and climate control packages
    • Variety of electrical lighting, power distribution and accessories

    Finishes

    IAC can provide quality factory finishes to any of our structures including:

    • Industrial duty air-dry enamel paint systems
    • Extreme duty catalyzed epoxy and chemical cure paint systems
    • Textured finishes
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