The Improved Pulse Code Modulation Technique for Gas Flux Control and Its Application

Pulse code modulation(PCM) is a modulation mode which is used to switch analog signals to digital signals.The principle of PCM is firstly overviewed in the article,and the PCM technique for flux control and its traits are analyzed.In view of the fault of the PCM technique for flux control,the improved PCM technique for gas flux control which is used to realize accurate control is advanced.The article expounds the principle of improved PCM technique for gas flux control,and the technique is applied to refining furnace bottom blowing Argon.Then,the principle of refining furnace bottom blowing Argon and the hardware and software of refining furnace bottom blowing Argon system are simply introduced.The application shows that the improved PCM technique for gas flux control can realize flux control accurately and fleetly.