從而控制一個液壓缸的前進和縮回運動。該電磁閥制造商的data sheet顯示每個電磁鐵驅(qū)動電流為1.0 Amp.液壓缸的前進和縮回每60秒–次，往復(fù)運動。前進需時6秒，縮回需時6秒。因為液壓缸前進和縮回所用時間相等，兩個電磁鐵工作的時間相同，每次6秒，占60秒的百分之十。由于兩個電磁鐵有相等的驅(qū)動電流和工作時間，因此，我們只需進行一個電磁鐵的計算，就可以應(yīng)用于兩個輸出。

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