在计量室的实际工作中,往往需要按照ГОСТ 8908-58检查各种极重要的零件——棱柱形导轨、滑座、样板等2～5级准确度的角度。借助角度量块用“光隙”法测量这种角度不能保证足够的准确度,特别是在被检角棱边短时,由于零件外形种类太多,而被检数量又有限的情况,使用专用仪器从经济上来看常常是不 In the practical work of the measuring room, it is often necessary to check ГОСТ 8908-58 for angles of accuracy 2 to 5 such as prismatic guides, slides and patterns. With the angle measurement block with “Light Gap ” method to measure this angle can not guarantee sufficient accuracy, especially in the seized corner edge of a short time, due to the type of parts too many types, and seized a limited number of cases, It is often not economically important to use specialized equipment