BSWA SPS Series Microphone Array for Industrial & Aerospace Acoustic Testing
2026-05-20BSWA SPS series microphone arrays (SPS490/SPS980/SPT980) deliver high-precision sound source localization and noise imaging for aerospace, wind power, industrial testing, and scientific research with spiral design, multi-algorithm analysis, and reliable hardware.
Overview
Microphone arrays collect sound signals through multi-channel microphones and analyze signals with professional algorithms to accurately locate sound sources and generate visual acoustic maps, making "invisible sound" clear and measurable. Widely applied in aerospace, wind power generation, industrial NVH testing and acoustic scientific research, the SPS series features spiral structure design, high matching phase microphones, stable hardware configuration and professional supporting software, covering full scenarios from laboratory precision measurement to outdoor extreme environment testing.
Core Application Scenarios
Sound Source Localization
Quickly identify noise sources in machinery, automobiles, aircraft, etc., for fault diagnosis and noise reduction optimization.
Noise Imaging
Generate acoustic color cloud maps based on acoustic holography or beamforming to show noise distribution and propagation paths.
Scientific Research
Meet laboratory requirements for low background noise and high-precision measurement, supporting acoustic characteristic research and sound field analysis.
Structure and Technical Highlights
1. Hardware: Stable and Adaptable
SPS490/SPS980/SPT980 adopt spiral structures for diverse scenarios, with outstanding hardware performance.
| Model | Core Hardware Parameters | Structural Advantages |
|---|---|---|
| SPS490 | 16-channel microphones; compatible with MPA416/MPA436A (1/4" array microphones, phase matching ≤5°); SMB interface, 8-pin LEMO output; array frame Ø480mm | Aluminum alloy integrated manufacturing, lightweight and portable; tripod mountable for lab/outdoor use |
| SPS980 | 36-channel microphones; compatible with MPA416/MPA436A (1/4" array microphones, phase matching ≤5°); SMB interface, 8-pin LEMO output; array frame Ø866mm | Stainless steel integrated design, high rigidity and reliability; 8 channels share one LEMO connector, compact wiring reduces signal interference |
| SPT980 | 36-channel microphones; compatible with MPA201T (IEC 61094 compliant, 1/2" measurement microphones, phase matching ≤2°); TNC interface, 8-pin LEMO output; same structure as SPS980 | High-precision microphones for low background noise and ultra-high-precision measurement (e.g., lab acoustic research) |
2. Software: Intelligent and Efficient for Full-Scenario Analysis
Equipped with professional array acoustic analysis software with built-in multiple algorithms, supporting full-process operation from data acquisition to post-processing.
Key functions:
- Dual-Mode Sound Source Identification: Online real-time analysis and offline data processing.
- Synchronized Data & Image Recording: Real-time storage of acoustic signals and acoustic maps for review.
- Flexible Array Customization: Adjustable array forms and microphone counts, reusable custom files.
- Full Advanced Algorithms: Built-in CLEAN, DAMAS, CLEAN-SC for optimal noise analysis.
- Data Interoperability & Simulation: Import/export support, third-party compatibility, simulated real-time processing.
Practical Project Cases
1. Wind Turbine Blade Noise Reduction Testing
- Demand: Locate noise sources and optimize design to meet environmental standards.
- Solution: SPS980 array captures blade noise data for positioning and optimization support.
- Result: Significantly reduced noise, compliance achieved, improved stability and competitiveness.
2. Aero-Engine Noise Testing
- Demand: Identify static noise sources for airworthiness certification and optimization, multi-scenario adaptability.
- Solution: SPS490 integrated with Mueller BBM PAK system, beamforming algorithm for data capture.
- Result: Accurate source location, clear cloud maps, -40℃~40℃ wide temperature operation, aviation-grade precision.
3. Rocket Launch Acoustic Monitoring
- Demand: Real-time high sound pressure level noise field monitoring for launch safety and protection optimization.
- Solution: Array deployed in launch site, high sound pressure microphones, DAMAS algorithm for analysis.
- Result: Stable data collection, noise path reconstruction, support for safety assessment and engineering improvement.
FAQ
What are the core differences between SPS490, SPS980 and SPT980? SPS490 is 16-channel, lightweight for general testing; SPS980 is 36-channel, high-rigidity for industrial scenarios; SPT980 uses high-precision IEC standard microphones for ultra-low noise lab research.
What algorithms are supported by the software? Built-in CLEAN, DAMAS, CLEAN-SC and other mainstream algorithms for broadband/narrowband noise.
What environments are the arrays suitable for? Wide temperature range (-40℃~40℃), applicable to lab, outdoor, industrial and extreme aerospace scenarios.
Can data be exported to third-party software? Yes, supports data import/export and compatibility with mainstream acoustic analysis tools.
