The method for improvement of a position control with an analog signal

For industrial equipments, a pulse encoder is generally used for measurement of a position, but the position is not stable by quantization errors which fluctuate between a resolution of the pulse encoder. For solving this problem, this paper proposed the analog clamp controller that uses the analog position measured with a sensor. In addition, this paper proposes a noise reduction observer to cut the high frequency noise contained in the analog signals. Effectiveness of the proposed observer is confirmed by some experiments