基于LabVIEW的S波段注入锁频磁控管功率合成监测保护系统
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摘要
在四路注入锁频15kW连续波磁控管的相干功率合成实验中,为保证实验系统安全,本文基于LabVIEW平台开发了一套微波功率合成系统控制保护程序。本程序每40ms采集一次波导中各路微波入射功率和反射功率,如果功率异常,上位机会控制磁控管电源的PLC切断磁控管的高压供电,防止大功率反射损伤磁控管微波源。另外,实验系统中水负载、磁控管、环行器都需要水冷散热。本程序每200ms采集一次大功率水负载、磁控管和环行器的冷却水流量和水温,能够在实验系统发生故障时及时报警。基于LabVIEW的数据自动采集克服了传统分布式测量仪器相互独立运行,无法进行数据交互的缺点。该监控系统实现了对大功率磁控管功率合成系统保护的功能。
In a microwave coherent power combining system based on four injection-locked 15 kW continuous wave magnetrons,a safety guarantee sub-system is developed with the LabVIEW software.The incident and reflected microwave power are acquired every 40 ms.Once the microwave power is abnormal,the high voltage supply for magnetrons will be cut off by the PLC,which prevents the magnetrons from being damaged.Cooling water is applied to dump load,magnetrons,and circulators.The water flow rateand temperature are acquired every 200 ms.When there is any system failure,the program may present an alarm.The automatic data acquisition overcomes the disadvantages of conventional distributed measurement instruments,which run independently and cannot exchange data from each other.This safety guarantee system realizes the protection for power combining ofhigh power magnetrons.
In a microwave coherent power combining system based on four injection-locked 15 kW continuous wave magnetrons,a safety guarantee sub-system is developed with the LabVIEW software.The incident and reflected microwave power are acquired every 40 ms.Once the microwave power is abnormal,the high voltage supply for magnetrons will be cut off by the PLC,which prevents the magnetrons from being damaged.Cooling water is applied to dump load,magnetrons,and circulators.The water flow rateand temperature are acquired every 200 ms.When there is any system failure,the program may present an alarm.The automatic data acquisition overcomes the disadvantages of conventional distributed measurement instruments,which run independently and cannot exchange data from each other.This safety guarantee system realizes the protection for power combining ofhigh power magnetrons.
引文
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[2]吴群.磁控管的研究现状与发展趋势[J].哈尔滨工业大学学报,2000,32(5):9-12.
[3]岳松,张兆传,高冬平.阻抗匹配条件下磁控管的注入锁频[J].物理学报,2013,(5):1-8.
[4]刘长军,吴昕.微波能工业应用研究进展[J].信息与电子工程,2012,10(4):451-455.
[5]梁天周.基于USB接口的微波功率计模块研制[D].陕西:西安科技大学,2009:10-16.
[6]唐伟,于平,李峥辉.STM32F103的USB多路数据采集系统设计[J].新器件新技术,2009,8(2):39-45.
[7]蔡磊.基于STM32F103芯片的USB接口的研究与实现[D].上海:复旦大学,2009:17.
[8]李维聪,孙海蓉.基于LabVIEW的USB无线数据采集仪[J].计算机仿真,2015,32(2):455-458.
[9]孙小权,何喜玲.基于PLC的液压实验台控制系统改造设计[J].应用科技,2006,33(11):23-25.
[10]曾珞亚.基于OPC技术的PLC与LabVIEW通信实现[J].微计算机信息,2009,16:52-53.
[11]尹伟伟,姜琛,闫保中.OPC技术在工业控制网络集成中的应用研究[J].应用科技,2009,36(3):42-45.