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毕业设计 心电检测系统的前向通路,共22页,13226字。
目录
摘要........................................................................ 2
引言.........................................................................3
1.系统概述..................................................................3
1.1概念介绍..............................................................3
1.1.1心电图...........................................................3
1.1.2 心电导联........................................................5
1.2总体介绍...............................................................5
1.3总体电路框图 .........................................................5
2.原理与电路...............................................................6
2.1 放大电路..............................................................6
2.1.1 方案(一).................. ..................................6
2.1.2 方案(二)............................... ........................7
2.1.3 方案(三)................................. ......................8
2.1.4 方案选择............................. ........................10
2.2 共模信号抑制电路.....................................................10
2.2.1 定义...........................................................10
2.2.2 方案介绍.......................................................11
2.2.2.1 方案(一).................................................11
2.2.2.2 方案(二)................................................11
2.2.3 方案选择.......................................................12
2.3 高频信号的滤除电路...................................................12
2.4 工频50Hz的陷波电路..................................................13
3.参数确定和元件选择.......................................................17
3.1 放大电路............................................................17
3.1.1 确定电阻R1—R6...............................................17
3.1.2 选择集成运算放大器和电阻元件..................................17
3.2 三阶巴特沃斯滤波器.................................................18
3.3 双T带阻滤波器......................................................19
4.放大滤波电路..............................................................19
5.测试方案.................................................................20
5.1 放大电路..........................................................20
5.2 三阶巴特沃斯滤波器................................................20
5.3 测试仪器..........................................................20
5.4 测试结果..........................................................20
6. 扩展部分................................................................21
7. 总结和讨论..............................................................21
8. 致谢....................................................................22
9.参考文献.................................................................22
论文大小:1.04MB
论文格式:word
论文专业:自动化
论文编号:41378
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