Brushless dc motor controller not only has the advantages of traditional dc motor controller, and cancelled the carbon brush and slip ring structure, has the advantages of small volume, light weight, large output, in cars, tools, automation has been widely applied and aerospace and other fields. Next small make up to you to introduce the shape of a brushless dc motor controller accuracy audit, don't know the close look together! The shape of a brushless dc motor controller including precision straightness, flatness, roundness, cylindricity, parallelism, perpendicularity and alignment, audit should be according to the position and role of the parts in the machine, refer to the similar pattern material, check its shape tolerance items and tolerance values to determine whether reasonable. The size of the audit should be paid attention to when a certain precision must have corresponding shape accuracy. Precision grades of the shape of a brushless dc motor controller based on the permissible error of the dial scale value by it's percentage, the higher their level of accuracy, permissible error limit value of the dial scale.
