101年四等地特測量第3題 - 土木
By Elizabeth
at 2012-12-17T15:11
at 2012-12-17T15:11
Table of Contents
題目:
三絲水準測量中,某水準儀之乘常數為100.0(+-)0.2,加常數為0.10m(+-)0.01m。現觀測
某一距離,其(上絲-下絲)之觀測值為0.500m,上視與下視讀數之中誤差各為0.001m,請
計算該視距之中誤差。
小弟的解法:
L=0.5*100+0.1=50.1m
m = {{[0.001^(2)+0.001^(2)]*0.2^(2)} +0.01^(2)}^(1/2)=0.010004m
所以視距與視距中誤差為 50.1(+-)0.010004m
不知道是否正確?麻煩不吝嗇指導與指正,謝謝!
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