Research on the application of software filtering in liquid level data acquisition system

摘要

According to the display unstable problem of the level height in the liquid level data acquisition system, software filtering is used in the de-noising and jamming-removing problem by analyzing signal characteristics. This paper mainly introduces some used software filtering methods and the methods are comparative analyzed in the liquid level data acquisition system. This paper emphatically discusses the method of unascertained rational and its application in the liquid level data acquisition system. The results of the experiments show that the filtering method of unascertained rational is good at anti-jamming ability and retain much effective information. This method not only strengthens the stability of the system but also improves accuracy of the numerical display.