承装修试电力设施许可证水准仪承装承修四级资质工具供应 水准仪(英文:level)是建立水平视线测定地面两点间高差的仪器。原理为根据水准测量原理测量地面点间高差。主要部件有望远镜、管水准器(或补偿器)、垂直轴、基座、脚螺旋。按结构分为微倾水准仪、自动安平水准仪、激光水准仪和数字水准仪(又称电子水准仪)。按精度分为精密水准仪和普通水准仪。   每公里往返测量高差标准偏差                     ≤0.5mm 望远镜                                                   正像 放大率                                                   38× 物镜口径                                                45mm 短视距                                                1.6m 乘常数                                                   100 加常数                                                   0 补偿器工作范围                                       30′ 安平精度                                                ±0.3″ 圆水准器灵敏度                                       10′/2mm 测微范围                                                10mm 测微尺格值                                             0.1mm 可估读值                                                0.01mm 承装修试电力设施许可证水准仪承装承修四级资质工具供应