调焦机构粗动松紧可调 coar movement tension can be adjusted带限位锁紧装置adjustment limit stopper微动格值:2μm Minimum graduation in fine movement: 2μm微调焦旋钮:fine focusing knob1μm微动:adjustment gradations: 1μm目镜物镜目镜筒&
调焦机构粗动松紧可调 coar movement tension can be adjusted带限位锁紧装置adjustment limit stopper微动格值:2μm Minimum graduation in fine movement: 2μm微调焦旋钮:fine focusing knob1μm微动:adjustment gradations: 1μm目镜物镜目镜筒&
深度解析TEM(透射电镜)透射电镜,即透射电⼦显微镜(Transmission Electron Microscope,TEM),是以波长极短的电⼦束作为照明源,⽤电磁透镜对透射电⼦聚焦成像的⼀种具有⾼分辨本领、⾼放⼤倍数的电⼦光学仪器。⽬前世界上最先进的透射电镜的分辨本领已达到0.1nm,可⽤来直接观察原⼦像。TEM的结构和成像原理透射电镜是以波长极短的电⼦束作为照明源,⽤电磁透镜聚焦成像的⼀种