-曲轴缺陷检测系统软件开发

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-曲轴缺陷检测系统软件开发目 录
1绪论...........................................................................................................................................3
1.1课题研究意义....................................................................................................................3
1.2国内外研究现状................................................................................................................4
1.3主要研究方法....................................................................................................................4
1.4主要研究内容....................................................................................................................5
1.5研究设计思路....................................................................................................................5
2基于金属磁记忆技术曲轴缺陷检测系统...............................................................................9
2.1金属磁记忆效应................................................................................................................9
2.2金属磁记忆技术原理........................................................................................................9
2.3基于金属磁记忆技术曲轴缺陷检测系统原理..............................................................13
2.4本章嗅..........................................................................................................................13
3曲轴缺陷检测系统硬件构成.................................................................................................14
3.1检测系统概述..................................................................................................................14
3.2缺陷检测系统传感部分设计..........................................................................................14
3.2.1传感器的工作原理 ............................................................................................15
3.2.2 HCM1001技术参数...............................................................................................15
3.2.3电桥偏置...............................................................................................................17
3.2.4置位/复位电路.....................................................................................................18
3.2.5灵敏度补偿电路...................................................................................................18
3.2.6为置位/复位电路拈的电压转换电路.............................................................20
3.3缺陷检测系统调节电路部分设计..................................................................................20
3.4系统基于声卡的数据采集拈使用..............................................................................21
3.5本章嗅..........................................................................................................................22
4在LabWindows/CVI中曲轴缺陷分析软件设计...................................................................23
4.1缺陷分析软件的拈划分..............................................................................................23
4.2数据采集拈..................................................................................................................23
4.3处理分析拈..................................................................................................................24
4.3.1时域分析...................................................................................................................24
4.3.2频域分析...................................................................................................................26
4.4测试结果处理拈..........................................................................................................31
4.4.1存储相关数据.........................................................................................................32
4.4.2数据的打影预览打印.........................................................................................33
4.4.3生成图表.................................................................................................................33
4.5本章嗅..........................................................................................................................33
5实物测试与实验结果分析.....................................................................................................35
5.1金属磁记忆产生的畸变磁场的影响因素......................................................................35
5.1.1应力大邪其分布.................................................................................................35
5.1.2 材料的磁特性........................................................................................................35
5.1.3 外部环境磁场........................................................................................................36
5.1.4 温度........................................................................................................................36
5.2实验结果与分析..............................................................................................................36
5.3误差分析..........................................................................................................................38
5.4本章嗅..........................................................................................................................39
6总结与展望.............................................................................................................................41
6.1总结..................................................................................................................................41
6.2进-步研究与展望..........................................................................................................41
致谢...........................................................................................................................................43
参考文献...................................................................................................................................44
附录...........................................................................................................................................46
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