浅谈测温元件干扰问题的处理  

Treatment of the interference problems for temperature measuring components

作　　者：陈炜 

机构地区：[1]甘肃祁连山水泥(集团)股份有限公司,青海西宁810021

出　　处：《电气传动自动化》2013年第3期49-52,共4页Electric Drive Automation

摘　　要：对工业自动化仪表测温元件在生产过程中经常遇到的干扰现象进行了深入的分析。通过列举几个具有代表性的实例,简要说明了干扰的种类、干扰产生的原因以及干扰解决的方法。通过实践结果表明,处理后的仪表信号稳定性好,可靠性高,所需费用低。较好地满足了生产工艺对仪表精度和稳定性的要求。Abstract： The interference phenomenon often encountered in the production process of the temperature measuring components of industrial automation instrument is analyzed deeply. The types, causes and solution of interference are briefly illustrated through a few typical examples. The practice results show that the processed instrument signal has good stability, high reliability and low cost. The requirements of instruments accuracy and stability for the production process can be met.

关 键 词：共模干扰 串模干扰 等电位屏蔽 双层屏蔽浮地保护 

分 类 号：TN972[电子电信—信号与信息处理]