摘要
介绍利用面板及智能终端进行电磁流量计参数设置和组态的方法,以及提高电磁流量计的电磁兼容性技术。电磁流量计的干扰源主要包括工频电磁干扰、流体电化学干扰噪声和电源干扰噪声。目前电磁流量计主要采用低频或双频矩形波励磁技术、同步采样技术、输入保护、接地技术等来降低干扰。实际应用表明,这些技术有较好的抗干扰效果。
The paper introduced the methods of using ADMAG AE electromagnetic flow meter, and the technology of enhancing electromagnetic compatibility. Interference sources of electromagnetic flow meter mainly include electromagnetic interference, electrochemistry noise and power source voltage and frequency fluctuations. Presently, electromagnetic flow meter used dual frequency excitation technology, synchronous sampling technology, input protecting technology and grounding technology to resist interfer- ence. Practical application showed that these technologies are effective to resist interference.
出处
《工业仪表与自动化装置》
2008年第1期63-66,共4页
Industrial Instrumentation & Automation
关键词
电磁流量计
电磁兼容性
双频励磁
抗干扰
electromagnetic flow meter
EMC
dual frequency excitation
anti - interference
