動態訊號分析儀（DSA）的訊號雜訊比（SNR）規格

硬體: Modular Instruments>>Dynamic Signal Acquisition and Analysis (DSA)>>PCI-4452, Modular Instruments>>Dynamic Signal Acquisition and Analysis (DSA)>>PCI-4551, Modular Instruments>>Dynamic Signal Acquisition and Analysis (DSA)>>PCI-4474, Modular Instruments>>Dynamic Signal Acquisition and Analysis (DSA)>>NI 4472 for IEEE 1394, Modular Instruments>>Dynamic Signal Acquisition and Analysis (DSA)>>PCI-4472, Modular Instruments>>Dynamic Signal Acquisition and Analysis (DSA)>>PXI-4472, Modular Instruments>>Dynamic Signal Acquisition and Analysis (DSA)>>PCI-4451, Modular Instruments>>Dynamic Signal Acquisition and Analysis (DSA)>>PXI-4462, Modular Instruments>>Dynamic Signal Acquisition and Analysis (DSA)>>PCI-4454, Modular Instruments>>Dynamic Signal Acquisition and Analysis (DSA)>>PXI-4461, Modular Instruments>>Dynamic Signal Acquisition and Analysis (DSA)>>PXI-4472B, Modular Instruments>>Dynamic Signal Acquisition and Analysis (DSA)>>PCI-4471, Modular Instruments>>Dynamic Signal Acquisition and Analysis (DSA)>>PXI-4471, Modular Instruments>>Dynamic Signal Acquisition and Analysis (DSA)>>PXI-4474, Modular Instruments>>Dynamic Signal Acquisition and Analysis (DSA)>>PCI-4461, Modular Instruments>>Dynamic Signal Acquisition and Analysis (DSA)>>PCI-4462

問題: 我的DSA設備類比輸入埠的訊號雜訊比規格是多少？

解答: 447x和446x的產品規格中並沒有明確給出訊號雜訊比規格，但是給出了總諧波失真（THD）和總諧波失真+雜訊（THD+N）的規格。訊號雜訊比、總諧波失真和總諧波失真+雜訊這三者只要知道其中兩個就能算出第三個。請參考以下由Analog Devices給出的連結來計算這些值。請注意：THD+N和SINAD是一樣的，您可以在產品規格中用THD+N取代SINAD。

相關連結: Analog Devices THD/ SNR/ SINAD Calculator
Product Manuals: NI 447X Specifications
Product Manuals: NI 446X Specifications


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報告日期: 09/27/2006
最後更新: 11/20/2006
文件偏號: 3ZD9QUNY