摘要
根据GB/T17626-4标准,分析了电快速瞬变脉冲群干扰的危害以及其产生和作用原理,模拟DOUBLETBW2105称重控制器在实际环境中其可能受到的干扰,采用3ctest MODEL EFT-4002型脉冲发生器对其进行测试.根据称重控制器结构特点和脉冲群产生机理设计了抑制EFT干扰的滤波器,改进了接地措施,同时采用了电源耦合装置以降低电源侧意外干扰.试验结果表明,采取预防措施后装置的抗干扰能力得到提高,能一次性通过电快速瞬变脉冲群干扰检测.
According to GB/T17626-4 standards,the hazards and the generating principle of EFT are analyzed in this paper.A weighing controller of DOUBLET BW2105 was tested by 3 ctest MODEL EFT-4002 pulse generator,which simulates the actual environment.Based on the mechanism of EFT and the structural features of weighing controller,EFT suppression filter was designed.Power coupling device was employed as well as grounding being improved,which reduced the accidental interference of the power side.The results showed that the immunity of the device was improved,which can passed the standard test of EFT.
出处
《南京师范大学学报（工程技术版）》
CAS
2011年第2期9-12,共4页
Journal of Nanjing Normal University(Engineering and Technology Edition)
基金
江苏省自然科学基金(BK2008429)
毫米波国家重点实验室开放基金(K201106)
南京师范大学研究生优秀论文培育计划(2010ss0018)
