立式光学计是工业企业计量室普遍具备的准确度较高的比较测量仪器。由于使用频繁 ,需经常检查和校正工作台 ,其目的是使工作台的平面与测帽的平面保持平行 ,以保证其测量的准确度。但在工作台校正方面 ,都存在着工作台调整较难的现象。一般常规的校正方法是 :使用８ｍｍ平面 Vertical optical meter is widely used in industrial enterprises measuring room with high accuracy comparative measuring instruments. Due to frequent use, the workbench needs to be checked and calibrated frequently. The purpose is to keep the workbench parallel to the plane of the measuring cap, so as to ensure the accuracy of measurement. However, in terms of workbench calibration, there is a problem that the worktable adjustment is difficult. The general method of calibration is:  8mm plane