基于X射線的液位檢測系統(tǒng)的設計
[Abstract]:Liquid level detection is a very important link in industrial production. It is of great significance in the fields of petroleum, food processing, product packaging and so on. In this paper, a stable liquid level detection system is composed of a mature PLC, a scintillator detector X-ray generator and a STM32 control module. The system is mainly used to detect the liquid level of beer, beverage and other filling products. This paper mainly studies the control of the low energy X-ray source (X-ray tube) which can be controlled. It mainly deals with the control of the filament supply current and the high voltage between the negative and the positive poles of the X ray. In order to make the X-ray source work stably, some other monitoring parameters are added: the control of the switching time of the high voltage power supply circuit and the filament power supply circuit. The high voltage DC power supply mainly uses the switching power supply technology. The high voltage and filament power supply uses different topology. The PWM wave duty cycle is used to control the output voltage of the power supply. A feedback control loop is also designed to improve the stability of the power supply. In order to protect the workers from X-ray radiation, the method of remote control ray is used, so the microcontroller STM32103VET6 is chosen as the main controller chip of the lower computer, and the program is written on the microcontroller to control the ray. RS-485 serial interface is selected to communicate with host computer, and upper control software is developed in labVIEW environment. The pulse signal processing circuit is designed, and the pulse signal amplification circuit is simply designed. The pulse count measurement experiment is done for the PLC high speed counter HSC4 (HSC5), and the program for collecting and processing the pulse count data by PLC is completed. The detection accuracy of the system is analyzed.
【學位授予單位】:山東科技大學
【學位級別】:碩士
【學位授予年份】:2017
【分類號】:TP274;O434.19
【參考文獻】
相關(guān)期刊論文 前10條
1 趙艷輝;劉麗艷;黃順;劉才學;蹤訓成;趙修良;;反應堆中子注量率相對分布測量裝置中多通道放大甄別器研制[J];原子能科學技術(shù);2014年02期
2 趙妮;;基于X射線探測技術(shù)的電路設計[J];核電子學與探測技術(shù);2011年07期
3 吳了;郭苗苗;;一種適用于Buck型DC/DC變換器的高精度片上電流采樣電路[J];微電子學與計算機;2011年06期
4 熊偉;;淺談可編程控制器的原理及控制[J];中國新技術(shù)新產(chǎn)品;2010年24期
5 魏文平;;光和電子的相互作用[J];讀與寫(教育教學刊);2010年10期
6 陶孝海;;51單片機C語言編程技巧[J];計算機時代;2009年06期
7 苑瑋琦;薛丹;;啤酒瓶高速實時在線容量檢測裝置的研制[J];微計算機信息;2008年33期
8 祁中;李東倉;楊磊;張文慧;劉兆遠;;基于低通S-K濾波器的核脈沖成形電路[J];蘭州大學學報(自然科學版);2008年05期
9 王斌;;基于UC1901的行波管燈絲電源的設計[J];電源技術(shù)應用;2008年01期
10 林森 ,惠曉威 ,楊順;基于DSP的玻璃酒瓶檢測系統(tǒng)研究[J];微計算機信息;2005年06期
相關(guān)會議論文 前1條
1 許春田;;PLC與TTL間電平轉(zhuǎn)換電路的一種簡單設計方法[A];全國冶金自動化信息網(wǎng)2010年年會論文集[C];2010年
相關(guān)碩士學位論文 前6條
1 閆興德;120KV高壓電源及其控制電路的設計[D];太原理工大學;2011年
2 陳連民;常見液態(tài)類危險品X射線圖像識別及物質(zhì)分類方法研究[D];東北大學;2008年
3 陳峰;X射線管直流高壓電源的研制及其遠程控制的實現(xiàn)[D];中南大學;2007年
4 楊磊;安檢設備用高頻X射線源研制[D];蘭州大學;2007年
5 戈崇胤;C語言程序設計學習支持系統(tǒng)的設計和開發(fā)[D];華東師范大學;2006年
6 丁濤;儲罐液位檢測技術(shù)研究[D];合肥工業(yè)大學;2005年
,本文編號:2181550
本文鏈接:http://sikaile.net/kejilunwen/zidonghuakongzhilunwen/2181550.html