SPEED AND ACCELERATION DATA PROCESSING IN THE CNC SYSTEM FEEDBACK LOOP

V.V. Kombarov, E.A. Aksenov О.V. Kombarova

One of the most important parameters determining accuracy is a precise determination of motion parameters: position, velocity, acceleration. Noise in the data position significantly affects the accuracy of speed and acceleration. The methods of smoothing that provide the best noise reduction with limited computational abilities of the CNC system are considered. Methods of exponential smoothing, simple and weighted moving average increase level noise from 8.5 to 12.74 times. Method of weighted moving average showed the best smoothing results.

Key words: CNC system, velocity, acceleration, quantization noise, exponential smoothing, moving average.