測量實習報告.docx - 測量實習報告 問題討論 4 前後視保持等距的目的為何?

測量實習報告.docx - 測量實習報告 問題討論 4...

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測量實習報告 問題討論 4. 前後視保持等距的目的為何? 在測量實習的同時 會有許多造成誤差原因 這些誤差包含視準軸誤差 地曲率的誤差及大地折射誤差 而這些誤差會造成測量的結果每個人不盡相同 甚至相差甚遠 因此 前後是保持等距的目的 即是為了消弭視準軸誤差 地曲率的誤差及大地折射的誤差 消除此三種誤差之後的測量結果 較準確及精 密。 實習心得 此次測量實習最主要的目的是為了量測兩地的高程差,以水準儀所視之水準 尺的標高計算。測量的過程首先是運用兩支鐵墊來設定水準尺的位置,因為有 鐵墊的關係所以得以維持水準尺的平衡,之後在兩點的中間架設水準儀。 水準儀的架設是我覺得最難的地方,光是將氣泡居中就會需要很多的時間進
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