NI USB 聲振粗糙度 (NVH) 系統 |
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NI USB Noise, Vibration, Harshness (NVH) System
Recommended Transducers Many manufacturers offer a wide range of microphones, accelerometers, and other transducers for your specific application. Listed below are selected transducers from manufactures G.R.A.S. Sound and Vibration and PCB Piezotronics. Microphones National Instruments recommends pre-polarized microphones and constant current powered (CCP) preamplifiers for use with NI devices that provide IEPE (Integrated Electronic Piezo-Electric) signal conditioning. Accelerometers National Instruments recommends piezoelectric or ICP ® type accelerometers for use with NI devices that provide IEPE (Integrated Electronic Piezo-Electric) signal conditioning. ICP ® is a registered trademark of PCB Piezotronics. NI USB 聲振粗糙度 (NVH) 系統為完整的聲音與振動解決方案，適用於 NVH、聲音、電聲 (Electroacoustics)、振動，與結構動力學 (Structural dynamics)。並包含下列相關應用：
軟體 NI USB NVH 系統均搭配 NI 聲音與振動量測套餐 (Sound and Vibration Measurement Suite)；該軟體不僅簡單易用，更囊括 NVH 的完整 NI 分析與訊號處理工具。並包含 8 度音 (Octave) 分析、頻譜分析、強度量測、掃瞄正弦、JTFA，與階次分析的分析功能。 硬體 NI USB NVH 系統具有 4 ~ 32 個加速規/麥克風輸入通道。加速規/麥克風通道則為可由軟體進行選擇的 IEPE 訊號處理、24 位元解析度、102 dB 動態範圍、51.2 kS/s 最大同步取樣率，與抗交疊濾波器。系統亦具有混合量測功能，適用於溫度、應變、電壓，與其他處理變數。 NI USB NVH 系統是以 NI CompactDAQ 平台為架構，並提供 USB 隨插即用的便利性，可連接桌面、廠房，或生產線上的感測器與電子量測作業。將簡單易用的低價位資料記錄器，整合模組化儀控的效能與彈性之後，NI CompactDAQ 即為提供快速且精確量測的精巧系統。
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