AccuRay 083156-002兩路脈沖輸入的雙相正交計(jì)數(shù)。即有兩個(gè)脈沖輸入端，輸入的兩路脈沖A 相、B相，相位互差90°（正交），A 相超前B相90°時(shí)，加計(jì)數(shù)；A 相滯后B相90°時(shí)，減計(jì)數(shù)。在這種計(jì)數(shù)方式下，AccuRay 083156-002可選擇1x 模式（單倍頻，一個(gè)時(shí)鐘脈沖計(jì)一個(gè)數(shù)）和4x 模式（四倍頻，一個(gè)時(shí)鐘脈沖計(jì)四個(gè)數(shù)）。如圖4，圖5所示。

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