Technique Of Discontinuous Surface Form Error Measurement

Accurate measurement is a key area for high level industrial process. A build block needs to be measured before and after process for guide and to know the result of the processing. There are pressing needs of non-linear surface measurement in heavy industrial equipment production.Most of the current methods of accurate surface form error measurement only work on linear surface, there no available accurate method for non-linear surface. This paper fund an online surface form error measurement system based on Time domain least-square serial two-point method which been upgrade by self-adaptable error separation matrix technique and other methods for uplift its ability to measure non-linear surface. The self-adaptable error separation matrix technique is allowed adjustment being placed automatically to the error separation matrix for non-linear surface error separation without compromise the accuracy of the system.Experiment preformed on a linear surface in a realistic environment shows that the measurement system is accurate. The comparison of the result from the simulation which was being run on a non-linear surface of1.5m*1.35m clearly shows that the method this paper shows didn’t compromise accuracy of the system which means that the method this paper fund able to work on non-linear surface without compromise accuracy.