本文選題：單片機(jī)　切入點(diǎn)：金屬探測(cè)器　出處：《南京理工大學(xué)》2013年碩士論文

【摘要】：本論文主要介紹一種基于AT89S52單片機(jī)的手持金屬探測(cè)器的電路組成、軟件實(shí)現(xiàn)、工作原理及主要性能。以AT89S52單片機(jī)為核心的該金屬探測(cè)器,主要由信號(hào)采集部分和信號(hào)處理部分組成。通過渦流傳感器探測(cè)到的感應(yīng)信號(hào)經(jīng)過放大、峰值檢波、模數(shù)轉(zhuǎn)換后經(jīng)由單片機(jī)進(jìn)行信號(hào)的處理與判斷,從而判定是否探測(cè)到金屬,并報(bào)警。另外,本文還通過探討認(rèn)為影響儀器靈敏度的主要因素是檢測(cè)線圈的尺寸和匝數(shù)及儀器的工作頻率；影響儀器穩(wěn)定性的因素是線圈的制作工藝、應(yīng)用現(xiàn)場(chǎng)環(huán)境的溫度、濕度及供電電源的穩(wěn)定度。 該金屬探測(cè)器的設(shè)計(jì)還給它添加了接口可以和外圍的系統(tǒng)進(jìn)行通訊,這里實(shí)現(xiàn)了與外圍液晶顯示,鍵盤和AT89S52組成的外圍數(shù)據(jù)處理與顯示模塊的通信,對(duì)前端探測(cè)到的數(shù)據(jù)進(jìn)行再處理和分析,并將結(jié)果顯示在液晶屏幕上,并可以通過鍵盤對(duì)前端的探測(cè)精度進(jìn)行設(shè)置。
[Abstract]:This paper mainly introduces the circuit composition, software realization, working principle and main performance of a handheld metal detector based on AT89S52 microcontroller.The metal detector, which is based on AT89S52 microcontroller, is mainly composed of signal acquisition part and signal processing part.The inductive signal detected by eddy current sensor is amplified, the peak value is detected, and the signal is processed and judged by single chip microcomputer after A / D conversion, so as to determine whether the metal is detected and alarm.In addition, it is considered that the main factors affecting the sensitivity of the instrument are the size of the coil, the number of turns and the working frequency of the instrument, and the factors affecting the stability of the instrument are the making process of the coil and the application of the temperature in the field.Humidity and power supply stability.The design of the metal detector also adds an interface to communicate with the peripheral system, where the communication with peripheral data processing and display module composed of peripheral liquid crystal display, keyboard and AT89S52 is realized.The data detected in the front end are reprocessed and analyzed, and the results are displayed on the LCD screen, and the detection accuracy of the front end can be set by the keyboard.
【學(xué)位授予單位】：南京理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2013
【分類號(hào)】：TH89;TP368.1

【參考文獻(xiàn)】

相關(guān)期刊論文 前7條

1 常謙,李寶貴;金屬探測(cè)器的現(xiàn)狀與發(fā)展前景[J];中國(guó)安防產(chǎn)品信息;2002年04期

2 許凱;論金屬探測(cè)器的發(fā)展與市場(chǎng)現(xiàn)狀[J];中國(guó)安防產(chǎn)品信息;2004年01期

3 唐煒,顧金鳳;數(shù)字式渦流傳感器的研究[J];傳感器技術(shù);2001年08期

4 周學(xué)才，，李傳芳;一種新型高穩(wěn)定度金屬探測(cè)及保護(hù)系統(tǒng)[J];電測(cè)與儀表;1997年04期

5 劉國(guó)亭;余晉岳;;金屬探測(cè)器的原理與應(yīng)用(下)[J];電子技術(shù);1984年02期

6 范麗珍;李樹華;;基于單片機(jī)的智能型金屬探測(cè)器的設(shè)計(jì)[J];內(nèi)蒙古大學(xué)學(xué)報(bào)(自然科學(xué)版);2006年02期

7 司德平;;漫談金屬探測(cè)器[J];物理通報(bào);2006年04期

本文編號(hào)：1711341