Editorial Technical Reference

Array Housing

This page explains how Array Housing is classified within Computer, Electronic and Optical Product Manufacturing. Technical values and manufacturer relationships are research references; confirm the current specification and supplier evidence for each order.

Technical Definition & Core Assembly

The protective enclosure that houses and structurally supports the microphone elements in an ANC microphone array system.

Representative product image. Confirm appearance and specifications with the manufacturer.

Product Specifications

Technical details and manufacturing context for Array Housing

Definition
Array Housing is the structural component of an Active Noise Cancellation (ANC) Microphone Array that provides physical protection, mechanical stability, and environmental shielding for the sensitive microphone elements. It ensures precise positioning of microphones for optimal beamforming and noise cancellation performance while protecting against dust, moisture, and physical damage. The housing is typically manufactured from materials such as aluminum alloy, ABS plastic, and acoustic foam, which are selected for their structural and acoustic properties. The design of the housing, including its dimensions and mounting hole positions, is specified in millimeters and must be verified for the specific model and application. The housing maintains fixed geometric relationships between microphone elements, enabling accurate phase and amplitude measurements for spatial audio processing. Its acoustic properties, such as port design and material density, influence sound wave reception while providing mechanical isolation from vibrations. This component is essential for the reliable operation of ANC systems in various environments, ensuring consistent performance. When selecting or replacing an Array Housing, it is crucial to confirm the exact specifications with the legal manufacturer or supplier, as dimensions and mounting configurations may vary. The housing does not include electronic components but serves as the mechanical interface between the microphones and the device. Proper installation and maintenance are necessary to preserve acoustic performance and protect against environmental factors. For detailed technical data, refer to the manufacturer's documentation. Always verify model-specific values and standards with the supplier to ensure compatibility and compliance.
Working Principle
The housing maintains fixed geometric relationships between microphone elements, enabling accurate phase and amplitude measurements for spatial audio processing. Its acoustic properties, such as port design and material density, influence sound wave reception while providing mechanical isolation from vibrations. The precise positioning of microphones within the housing is critical for beamforming and noise cancellation algorithms to function correctly. The housing also shields the microphones from external mechanical disturbances and environmental contaminants, ensuring consistent performance over time.
Common Materials
Aluminum alloy, ABS plastic, Acoustic foam
Technical Parameters

What to specify in your RFQ

  • Overall dimensions and mounting hole positions in mm

These are the quantities to specify to the manufacturer when sizing or requesting a quote. The manufacturer's own documentation governs the exact figures and applicable standard.

Components / BOM
  • Housing Body
    The housing itself: encloses and locates the internal parts and provides the mounting interface.
  • Mounting Bracket Part
    Provides attachment points for securing the array to surfaces
    Material: Stainless steel
  • Acoustic Mesh Part
    Filters dust while allowing sound waves to pass through
    Material: Polyester fabric
  • Vibration Dampers Part
    Isolates microphones from mechanical vibrations
    Material: Silicone rubber

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Industrial Ecosystem & Supply Chain Structure

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: 0 to 1 atm (sealed, non-pressurized)
other spec: IP67 ingress protection, vibration resistance up to 5g RMS
temperature: -40°C to +85°C
Media Compatibility
✓ indoor office air ✓ automotive cabin air ✓ HVAC duct air
Unsuitable: high-pressure water jets or submerged environments
Sizing Data Required
  • number of microphone elements in array
  • required spatial coverage angle
  • available mounting footprint dimensions

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Fatigue cracking
Cause: Cyclic stress from vibration or thermal expansion/contraction, often exacerbated by improper alignment or material defects.
Corrosion and pitting
Cause: Exposure to harsh chemicals, moisture, or galvanic action due to incompatible materials in contact, accelerated by inadequate protective coatings.
Maintenance Indicators
  • Visible cracks, deformation, or discoloration on the housing surface
  • Unusual vibrations or audible rattling noises during operation
Engineering Tips
  • Implement regular alignment checks and vibration analysis to detect early stress points before cracks propagate
  • Apply corrosion-resistant coatings and ensure proper material compatibility in the assembly to prevent galvanic corrosion

Indicative industry ranges for design and RFQ preparation. Confirm the exact figures and applicable standard with the manufacturer before specifying.

Compliance & Manufacturing Standards

Applicable Standards
ISO 286-1:2010 (Geometrical product specifications - Limits and fits) ANSI B4.1-1967 (Preferred Limits and Fits for Cylindrical Parts) DIN 7150-1 (Tolerances for cylindrical fits)

Quoted from the published standard.

Manufacturing Precision
  • Bore diameter tolerance: +/-0.02mm
  • Flatness tolerance: 0.1mm per 100mm length
Quality Inspection
  • Coordinate Measuring Machine (CMM) dimensional verification
  • Surface roughness measurement per ISO 4287

Manufacturers of Array Housing

Manufacturer profiles associated with Array Housing.

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Technical documentation
Request current drawings, revision history, and a signed specification sheet.
Manufacturing capability
Verify equipment lists, process limits, capacity, and representative production evidence.
Inspection readiness
Confirm test methods, calibrated equipment, sampling plans, and traceable reports.
Supplier transparency
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Frequently Asked Questions

What is the primary function of Array Housing?

Array Housing provides physical protection, mechanical stability, and environmental shielding for microphone elements in an ANC microphone array. It ensures precise positioning for optimal beamforming and noise cancellation performance.

What materials are commonly used for Array Housing?

Common materials include aluminum alloy, ABS plastic, and acoustic foam. These are selected for their structural integrity and acoustic properties, but specific material grades should be confirmed with the manufacturer.

How do I verify the correct Array Housing for my application?

Check the overall dimensions and mounting hole positions, which are specified in millimeters. Always confirm these specifications with the legal manufacturer or supplier to ensure compatibility with your microphone array.

Does Array Housing affect acoustic performance?

Yes, the housing's port design and material density influence sound wave reception. It also provides mechanical isolation from vibrations, which is essential for accurate phase and amplitude measurements.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records.

Preliminary Technical Classification
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