论电测技术中的抗干扰问题

字数:13904,页数:30   附任务书,开题报告

摘    要

      来自外部和内部，影响仪表和装置正常工作的各种因素，总称为“干扰”。消除或减弱各种干扰对仪表或装置工作的影响，必须采取必要的技术措施。任何事物总是与周围物质世界有着各种具体的联系，并且通过这些联系相互作用着，互相影响着。
关键词：传感器  温度补偿  可靠性

By electrical measurement technology in antijamming question
Dan Zhu
0501 Electrical automation

Abstract: From exterior and, affects the measuring appliance and equipment normal work each kind of factor, the general name is “the disturbance”. Eliminates either weakens each kind of disturbance to the measuring appliance or the installment work influence, must take the essential technical measure. Any thing always has each kind of concrete contacting with the periphery material world, and through these relation interaction, mutual influence.
 Key words: Power supply; Transformer substation; Shaping; Verification

目 录
第1章干扰器的选择 .......................................................4
1.1  干扰与防护.......................................................... 4
1.2干扰的类型及防护 ......................................................5
第2章噪声源与噪声耦合方式 ...............................................7
2.1  噪声与信噪比 ........................................................7
2.2 噪声电压的迭加....................................................... 8
第3章屏蔽、接地、浮置与其它噪声抑制技术 .................................11
3.1  屏蔽技术............................................................ 12
3.2接地 ..................................................................14
3.4平衡电路.............................................................. 15
3.5滤波器.......................................................... ......16
3.6光耦合器.............................................................. 16
3.7脉冲电路的噪声抑制技术................................................ 17
第4章电源变压器与工频干扰 ...............................................17
4.1电源变压器原、副边绕组之间加入单层静电屏蔽后的泄漏电流分析 ............17
4.2电源变压器原、副边绕组之间加入双层屏蔽的接法及漏电分析 ................17
4.3电源变压器原、副边之间采用三层屏蔽的接法及干扰分析 ....................18
第5章  电子测量仪表的屏蔽与防护 ..........................................19
5.1测量仪表中实用屏蔽规则................................................ 19
5.2  数字电压表的屏蔽与防护分析 ..........................................20
5.3  电子测量仪表的屏蔽与防护小结 ........................................21
致谢 ....................................................................23
参考文献 .................................................................24