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何謂零點飄移

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這是電子方面的術(shù)語.一個理想的放大電路,當(dāng)輸入信號為零時,其輸出電壓應(yīng)保持不變(不一定是零),但實際上,由于環(huán)境溫度的變化,輸出電壓并不保持恒定,而在緩慢地，無規(guī)則地變化著，這種現(xiàn)象就叫零點漂移（或稱溫漂）．

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