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From Friday, April 19th (11:00 PM CDT) through Saturday, April 20th (2:00 PM CDT), 2024, ni.com will undergo system upgrades that may result in temporary service interruption.
We appreciate your patience as we improve our online experience.
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我創造了一個虛擬頻道(virtual channel)來擷取連接到SCB-68上的熱電偶訊號。在這個虛擬頻道的設定中,我將 CJC Source 設定為 Built-In。當我從虛擬頻道中擷取訊號時,冷端補償(Cold Junction Compensation,CJC)感測器多久讀一次?
如果您已經正確地設定SCB-68,它的CJC感測器是連接到資料擷取(DAQ)裝置的類比輸入頻道0(請參照SCB-68的使用手冊,位於下方連結)。這提供它與裝置其他輸入頻道一同掃瞄的能力。所以,當虛擬頻道每讀取一次,CJC感測器也就讀取一次。換句話說,它每次掃瞄即被讀取一次。
注意:以上資訊於SCB-100同樣適用。
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