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Software
LabVIEW Development Systems
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Driver Software
(11)
Utility Software
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Hardware
Digital Multimeters (DMM)
(18)
Dynamic Signal Acquisition and Analysis (DSA)
(17)
High-Speed Digitizers (Scopes)
(12)
High-Precision DAQ (Dataloggers)
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RF Measurement Devices
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NI-SCOPE模擬硬體功能
我想用NI-SCOPE的軟體來寫程式, 但在電腦裡還沒有NI的示波器卡. 我該如何利用模擬硬體的功能?
URL:
http://digital.ni.com/public.nsf/allkb/7807C85BBA276C688625710F0002A94A
NI 9233 有效的取樣頻率
我的應用是做聲音訊號的擷取. 當我將 NI-9233 的取樣頻率設定為44.1kHz時, 實際的取樣頻率卻被強制改為50kHz. 什麼是 NI-9233 有效的取樣頻率?
URL:
http://digital.ni.com/public.nsf/allkb/C7011A72E3924172862572930016B0B5
當量測訊號超過設定範圍時,'niDMM Is Overrange'函式並不會回傳true值
我目前正好使用NI-DMM卡片來做些測試,發現,'niDMM Is Overrange'函式並不會每次都在訊號超過設定量測範圍時回傳一true值,為什麼會這樣呢?
URL:
http://digital.ni.com/public.nsf/allkb/2564BE03DEFF4B0E862570C2000C0D16
請問DMM407X的擷取速率?
當我在看407X DMM的規格,我看到有關擷取速率的兩個數值,一個是開頭的1.8MS/s,另一個是reading rate,哪一個是在可以達到精準度的擷取速度?
URL:
http://digital.ni.com/public.nsf/allkb/F4942DAF55CA3A14862570B5002AF155
NI DSA裝置使用者校正的預設密碼為何?
我想要對DSA卡利用DAQmx API執行外部訊號校正,當我將密碼輸入'NI'時,它回傳錯誤訊息 -200110 'Password supplied is incorrect'。請問我應該使用的密碼為何?
URL:
http://digital.ni.com/public.nsf/allkb/E47211A6569341F486257099003C2DEE
用USB-9233動態訊號擷取裝置量測直流電壓
問題: 是否用USB-9233 DSA可以量測直流電壓? 解答: 不行,USB-9233是AC-coupled裝置,用一電容串接來阻擋DC電壓及偏移,在USB-9233使用手冊的第10頁及規格,它說明其有較低的AC截止頻率,大約-3dB在0.5Hz.
URL:
http://digital.ni.com/public.nsf/allkb/753562AFDFBCD0968625708C000C910E
我該如何不透過Driver Session而動態得知NI模組化儀器的Device Name?
我可以透過DAQmx的Property Node得知DAQ裝置的Device Name,請問我該如何不透過Driver Session而動態得知NI模組化儀器(High-Speed Digitizer, Signal Generator, Digital Multimeter, High-Speed Digital Generator/Analyzer, Switch, RF Signal Generator)的Device Name?
URL:
http://digital.ni.com/public.nsf/allkb/076092F19156C89786257153004B2AFE
我該如何在程式中得知我的NI模組化儀器的序號而不用開啟 Driver session?
我該如何在程式中得知我的NI模組化儀器的序號(高速取樣器, 訊號產生器, 數位電錶, 高速數位產生器/分析器, 切換器, RF 訊號產生器)而不用開啟 Driver session? 對於DAQmx 裝置, 我可以使用 DAQmx System property node. 模組化儀器有沒有方法?
URL:
http://digital.ni.com/public.nsf/allkb/B95192FE8B724C9686257444000F325B
為什麼我的PXI-4472在MAX中顯示成PXI-4455?
我有一張DAQmx驅動的PXI-4472。在NI-DAQmx與Traditional DA中皆正常顯示PXI-4472。但是展開PXI機箱的列表,為什麼卻是顯示PXI-4455?
URL:
http://digital.ni.com/public.nsf/allkb/606794DFF04149908625704A00242B49
SMT Spectrum Peak Search.vi 計算的峰值和 Power Spetrum Graph 的不一樣
在 ni5660 Peak Search.vi 的 front panel 上和 RFSA Spectrum Peak Search Application Example.vi,有個 Peaks cluster 包含了由 Spectral Measurements Toolkit (SMT) Peak Search measurement VI 找出的峰頻率以及峰值。為什麼峰頻率或峰值和 Power Spectrum graph 的不一樣?
URL:
http://digital.ni.com/public.nsf/allkb/D47ED7DD3E76246E862574A6000B6054
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