论传感器使用中的抗干扰技术

字数:15102,页数:36   附任务书,电子机电论文开题报告

目 录
摘要 .................................................................2
第一章  干扰的类型及产生 .............................................3
第1.1节  干扰的类型 ..................................................3
第1.2节  干扰的产生.................................................. 4
第1.3节信噪比与干扰叠加 .............................................5

第1.4节噪声源 .......................................................6
第二章  干扰信号的耦合方式 ...........................................8
第2.1节  静电电容耦合............................................. ...8
第2.2节  电磁耦合.................................................... 9
第2.3节  共阻抗耦合.................................................. 9
第2.4节漏电流耦合 ...................................................10
第2.5节电子测量装置中的两种干扰 .....................................11
第2.6节  共模干扰抑制比...............................................13
第三章  常用的抑制干扰措施 ...........................................14
第3.1节  屏蔽技术 ....................................................14
第3.2节  接地技术 ....................................................16
第3.3节浮置......................................................... 18
第四章  其他抑制干扰措施............................................. 20
第4.1节隔离 .........................................................20
第4.2节滤波 .........................................................20
第4.3节平衡电路..................................................... 22
第4.4节脉冲电路的噪声抑制技术 .......................................23
第五章  软件抗干扰技术............................................... 26
第5.1节数字滤波技术............................................. ....26
第5.2节指令冗余技术................................................. 28
第5.3节软件陷阱技术 .................................................29
致   谢 ..............................................................30
参考文献............................................................. 31

摘    要

      测量仪表或传感器工作现场的环境条件常常是很复杂的。各种干扰通过不同的耦合方式进入测量系统，使测量结果偏离准确值，严重时甚至使测量系统不能正常工作。为保证测量装置或测量系统在各方种复杂的环境条件下正常工作，就必须研究抗干扰技术。
抗干扰技术是检测技术中一项重要的内容，它直接影响测量工作的质量和测量结果的可靠性。因此，测量中必须对各种干扰给予充分的注意，并采取有关的技术措施，把干扰对测量的影响降低到最低或容许的限度。
关键词：耦合方式; 抗干扰技术;传感器;测量

By sensor use in antijamming technology protection
Jie Liu
0501 Electronic information
Abstract: The measuring instrument or the sensor job site environmental condition is frequently very complex. Each kind of disturbance enters the measurement system through the different coupling way, causes the measurement result deviation accurate value, serious when even enables the measurement system the normal work.In order to guarantee the metering equipment or the measurement system plant under the complex environmental condition in all quarters the normal work, must study the antijamming technology.
The antijamming technology is examines in the technology an important content, it interferes with survey directly the quality of the work and the measurement result reliability Therefore, in the survey must give the full attention to each kind of disturbance, and takes the related technical measure, the influence reduces the disturbance to the survey to the limit which lowest or allowed.
Key word: measuring；disturbance；sensor；the antijamming technolog