Measuring instruments for building construction - methods for determining accuracy in use : optical levelling instruments 建筑施工用测量仪器.第3部分:使用精度的测定方法:光学水准仪
Because of the large difference between digital level and optical level , the suitable method to assess the precision of digital level is needed 同传统的光学水准仪相比,数字水准仪原理新颖,影响其精度的误差源也有所不同,目前还没有针对数字水准仪的检定规程。