NEC infrared thermal imager, PCB acceleration sensor, high pixel infrared imager, dynamic data acquisition instrument, woodworking laboratory, PCB sensor, wire rope detector, handheld XRF spectrometer, infrared detection service, wire rope nondestructive testing, wire rope flaw detection service, wire rope lubricator, MIKRON blackbody calibration source, IMPAC infrared thermometer.
- American Piezoelectric PCB Sensor
- Data acquisition instrument
- stress-strain measurement
- infrared thermal imager
- Handheld XRF Spectrometer
- France CA Electrical Measurement
- Woodworking machinery and equipment
- 高校創意木工坊
- Wire rope detector
- full-day blind ultraviolet imager
- Blackbody calibration source
- Professional Testing Services
- X-ray residual stress tester
- spectrophotometer
New Application of Acoustic Imaging Technology in Localization of Complex Noise Sources
聲學成像技術在復雜噪聲源定位中的全新應用
聲學相機如何實現0.1米精度噪聲定位?解密陣列麥克風與算法融合技術
從汽車風噪到航空發動機異響,聲學測量的技術躍遷
深度技術內容
聲源定位技術的演進
傳統單點麥克風的局限性(相位失真、空間分辨率低)
PCB 130型1/4英寸麥克風陣列的“波束成形+時反算法”原理圖解
PCB 130E21麥克風核心性能
超精密相位匹配:64通道同步誤差<0.05°,確保聲場重建準確度
動態范圍達168dB:火箭發射測試中捕捉次聲波至超音速全頻段
汽車NVH測試案例
實驗配置:48個PCB 130E21麥克風+手持式聲學相機(頻寬20Hz~20kHz)
結果:30分鐘內定位車門密封條3mm縫隙導致的風噪(附聲功率云圖)
航空航天領域**應用
飛機發動機葉片顫振檢測:256通道陣列的實時模態分析(引用AIAA論文)
對比傳統激光測振儀:聲學方案成本降低60%,部署效率提升4倍
技術生態與資源
開源工具:聲學陣列校準軟件(GitHub鏈接)
行業認證:符合SAE J247聲學測試標準(SAE官網)