Method for judging non-sensitive area of servo system

The invention discloses a method for judging a non-sensitive area of a servo system and belongs to the technical field of servo system control. With the method adopted, the problems of inaccurate judgment and low judgment efficiency of the non-sensitive area of a servo system in the prior art can be solved. The method comprises the following steps that: unit angle wave control signals are inputtedto a servo system, so that the feedback signals of the servo system can be obtained; the feedback signals are filtered; the filtered feedback signals are judged on the basis of a preset non-sensitivearea threshold value range, so that all the static areas of the servo system are obtained; the maximum non-sensitive area of the servo system is obtained according to a time point corresponding to the maximum static area in all the static areas; error correction is performed on the maximum non-sensitive area of the servo system, so that the corrected non-sensitive area of the servo system and thestarting point and duratio