丁字尺与角度配合法测量全站仪高度的方法

Method to Survey Height of Total Station by T-square and Angle

当受到地形条件限制,以对向观测法或单向观测法进行三角高程测量时,仍需对全站仪高度进行比较精确地测量。为此提出丁字尺与角度配合法。利用丁字尺尺头与尺身相互垂直的特点,结合全站仪对中器激光束(或光学对中器十字丝)和垂直角,在几何上构建一个直角三角形,根据三角函数关系可得仪器高度。经过与二等水准测量对比,该法获得的仪器高度比较精确。此方法简便、精度较高,有一定参考价值。

Because of terrain limitations trigonometric levelings have to be done by bilateral or single observations,the relative accurate heights of electronic total station are still needed.So a new way combined with T-square and angle was proposed.The short side of T-square is kept vertically along optical or laser centering device,at the same time the long side of T-square is horizontal.On the base a right triangle is constructed geometrically by vertical angle and T-square.Then according to trigonometric function relation the height can be calculated out.Compared with second order leveling,the result of heights were relative accurate by this way.It is a relative accurate and convenient method for surveying,and has some reference value in production.