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The Improved Pulse Code Modulation Technique for Gas Flux Control and Its Application
Author(s): LI Hao, QIU Chao-fan
Pages: 7-
10,22
Year: 2011
Issue:
12
Journal: Hydraulics Pneumatics & Seals
Abstract: 脉冲编码调制是把模拟信号变换为数字信号的一种调制方式.首先概述了PCM的基本原理,分析了PCM流量控制技术及其特点.针对PCM流量控制技术存在的不足,提出了改进的PCM气体流量控制技术,来实现精确控制.阐述了改进的PCM气体流量控制技术工作原理,并将其应用于精炼炉底吹氩工艺中,同时简要介绍了精炼炉底吹氩的原理、精炼炉底吹氩系统的硬件和软件.实践表明,改进的PCM气体流量控制技术能精确、快速地实现控...
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