标准测微尺(简称标尺)全长1毫米。共分10个大格100个小格。标尺刻度若通过物镜和目镜放大乘积为100倍时,则一个刻度格的尺寸正好是1毫米。目镜中度尺在任何放大倍数下不变。该刻度尺全长也是1毫米,每格格值为0.01毫米。当标尺放大100倍后与目镜度尺相差0.25毫米。如以标尺为基准,则目镜刻度尺小了O.25毫米。其原因在于目镜刻度尺的分格未能配合显微镜的组合倍数。为了弥补这一设计上的不足,可在使用前校对标尺和目 Standard micrometer (referred to as scale) length of 1 mm. Divided into 10 grid 100 small grid. If the ruler scale magnifies the product by objective and eyepiece by a factor of 100, then the scale of a ruler is exactly 1 millimeter. Eyepiece medium scale at any magnification unchanged. The length of the scale is also 1 mm, each grid value is 0.01 mm. When the scale is magnified 100 times and the eyepiece is 0.25mm. If the ruler as a benchmark, the eyepiece scale smaller O.25 mm. The reason is that the sub-grid of the eyepiece scale fails to match the combination multiple of the microscope. To make up for this design deficiencies, you can proofread the ruler and head before use