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試驗機測量結果產生誤差的解決方法

發布日期:2022-05-30 點擊率:74

  一、主機部分:

  在主機部分由于安裝不水平時,將會使工作活塞和工作油缸壁產生摩擦力,從而產生誤差。一般表現為正差,并且隨著載荷的增加,產生的誤差逐漸較小。

  解決方法:首先要檢查試驗機安裝是否水平,對主機用框式水平尺在工作油缸(或立柱)外圈相互垂直的兩個方向找平。

  二、測力計部分:

  當測力計部分安裝不水平時,將會使擺軸軸承之間產生摩擦力,一般變現為負差。

  以上兩種是對小負荷測量的影響比較大,對大負荷測量的影響比較小。

  解決方法:對測力計在擺桿正面調整測力計前后水平,將擺桿邊緣與內側刻線對齊固定,用水平尺靠在擺桿側面調整機體左右水平。


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