【摘要】：本文對硬質(zhì)合金磁飽和測量的行業(yè)背景和技術(shù)發(fā)展進(jìn)行了研究和闡述,針對磁飽和測量系統(tǒng),本文設(shè)計(jì)和驗(yàn)證了一種高精度的數(shù)據(jù)處理方法,并開發(fā)了便捷友好的上位機(jī)軟件。成功運(yùn)用了動(dòng)態(tài)鏈接庫技術(shù)、多線程技術(shù)和數(shù)據(jù)庫技術(shù)等,這些關(guān)鍵技術(shù)為整個(gè)項(xiàng)目的數(shù)據(jù)處理和軟件設(shè)計(jì)提供了很大便利,顯著提高了測量系統(tǒng)的穩(wěn)定性和項(xiàng)目開發(fā)效率設(shè)計(jì)的數(shù)據(jù)處理方法包括數(shù)字濾波、數(shù)字積分、數(shù)據(jù)擬合、系統(tǒng)調(diào)零和校準(zhǔn)等,濾波采用基于窗函數(shù)設(shè)計(jì)的有限長脈沖響應(yīng)數(shù)字濾波器,積分采用復(fù)化辛普森積分算法,數(shù)據(jù)擬合采用最小二乘法分段直線擬合。與傳統(tǒng)硬質(zhì)合金磁飽和測量的數(shù)據(jù)處理方法相比,該方法具有處理結(jié)果精度高、數(shù)據(jù)重復(fù)性好等特點(diǎn)。上位機(jī)軟件是基于Delphi編程軟件開發(fā)而成的,集成了數(shù)據(jù)表格、圖形顯示、自動(dòng)和手動(dòng)控制模式、測量設(shè)置、狀態(tài)欄、數(shù)據(jù)導(dǎo)出、表格打印、端口監(jiān)測、數(shù)據(jù)查詢、表格字體設(shè)置和相關(guān)人員選項(xiàng)等,打造了便捷友好的軟件界面。實(shí)現(xiàn)了權(quán)限管理功能,為管理員、測量員和開發(fā)者分別設(shè)定不同的權(quán)限范圍,可以有效保證數(shù)據(jù)安全和系統(tǒng)安全,也為用戶和調(diào)試人員提供便利。本文最后對若干標(biāo)準(zhǔn)硬質(zhì)合金試樣進(jìn)行反復(fù)測量,通過改變測量次序和工作時(shí)長來觀察測量數(shù)據(jù)的表現(xiàn)。實(shí)驗(yàn)結(jié)果表明,測量系統(tǒng)的表現(xiàn)符合預(yù)期,具有高精度、高效率和高穩(wěn)定性的優(yōu)點(diǎn),驗(yàn)證了數(shù)據(jù)處理方法的可靠性和上位機(jī)軟件的穩(wěn)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.
【學(xué)位授予單位】：湖南大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：TG135.5;TP311.52

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本文編號：2372194