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| 摘要: |
| 随着变电站自动化和开关状态在线监测的广泛应用,要求有一种可以远方实时监控SF6气体密度值的密度表。目前普遍使用的指针式SF6密度表虽然有密度显示、报警功能,但并不具备向远方传送数据的功能,而单一的电子式远传密度表又必须要有电源供应。利用单片数据采集器和智能传感器改造传统指针式仪表,使之满足在线监测和安装调试的要求。主要讨论了在原有指针式仪表的基础上增加传感器,对密度变换、信号变送远传等部分的设计,并针对SF6气体密度特殊的表示给出了算法和实现程序。 |
| 关键词: 远传,密度表,数据采集 |
| DOI： |
| 分类号:TM93 |
| 基金项目: |
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| Development of SF6 densimeter |
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ZHANG Junmin KOU Xinmin ZHANG Lina
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| Abstract: |
| Substation automation and switch online monitoring need SF6 densimeter.Traditional SF6 densimeter has only display and alarm functions,while simple remote density meters needs power supply.Single-chip data collector and intelligent sensor are used to reform the traditional densimeter to meet the requirements of online monitoring and commissioning.Adding sensors to traditional mechanical densimeter is discussed and the design of signal conversion and data transmission is given,together with the algorithm and program. |
| Key words: remote transmission,densimeter,data acquisition |
