硬质合金磁饱和测量系统的数据处理与软件设计

发布时间：2018-12-11 08:05

【摘要】：本文对硬质合金磁饱和测量的行业背景和技术发展进行了研究和阐述,针对磁饱和测量系统,本文设计和验证了一种高精度的数据处理方法,并开发了便捷友好的上位机软件。成功运用了动态链接库技术、多线程技术和数据库技术等,这些关键技术为整个项目的数据处理和软件设计提供了很大便利,显著提高了测量系统的稳定性和项目开发效率设计的数据处理方法包括数字滤波、数字积分、数据拟合、系统调零和校准等,滤波采用基于窗函数设计的有限长脉冲响应数字滤波器,积分采用复化辛普森积分算法,数据拟合采用最小二乘法分段直线拟合。与传统硬质合金磁饱和测量的数据处理方法相比,该方法具有处理结果精度高、数据重复性好等特点。上位机软件是基于Delphi编程软件开发而成的,集成了数据表格、图形显示、自动和手动控制模式、测量设置、状态栏、数据导出、表格打印、端口监测、数据查询、表格字体设置和相关人员选项等,打造了便捷友好的软件界面。实现了权限管理功能,为管理员、测量员和开发者分别设定不同的权限范围,可以有效保证数据安全和系统安全,也为用户和调试人员提供便利。本文最后对若干标准硬质合金试样进行反复测量,通过改变测量次序和工作时长来观察测量数据的表现。实验结果表明,测量系统的表现符合预期,具有高精度、高效率和高稳定性的优点,验证了数据处理方法的可靠性和上位机软件的稳定性。
[Abstract]:In this paper, the industry background and technical development of magnetic saturation measurement of cemented carbide are studied and expounded. In view of the magnetic saturation measurement system, a high precision data processing method is designed and verified, and a convenient and friendly upper computer software is developed. The dynamic link library technology, multi-thread technology and database technology are used successfully. These key technologies provide great convenience for the data processing and software design of the whole project. The methods of data processing, such as digital filtering, digital integration, data fitting, system zeroing and calibration, have been used to improve the stability of the measurement system and the efficiency of the project development. The filter uses a digital filter with finite length impulse response based on window function. The integration is based on the complex Simpson integral algorithm and the least square method is used to fit the data in a piecewise straight line. Compared with the traditional data processing method for magnetic saturation measurement of cemented carbides, this method has the advantages of high precision and good repeatability. PC software is based on Delphi programming software development, integrated data tables, graphic display, automatic and manual control mode, measurement settings, status bar, data export, form printing, port monitoring, data query, Table font settings and related personnel options, to create a convenient and friendly software interface. The function of authority management is realized, which sets different limits of authority for administrators, surveyors and developers, which can effectively guarantee data security and system security, and also provide convenience for users and debuggers. In the end, several standard cemented carbide samples were measured repeatedly, and the performance of the measured data was observed by changing the measuring order and working time. The experimental results show that the performance of the measurement system is in line with expectations and has the advantages of high accuracy, high efficiency and high stability. The reliability of the data processing method and the stability of the upper computer software are verified.
【学位授予单位】：湖南大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TG135.5;TP311.52

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