測高程水準儀 的英文怎麼說
中文拼音 [cègāochéngshuǐzhǔnyí]
測高程水準儀
英文
altitude level- 測 : 動詞1. （測量） survey; fathom; measure 2. （測度; 推測） conjecture; infer
- 高 : Ⅰ形容詞1 （從下向上距離大; 離地面遠） tall; high 2 （在一般標準或平均程度之上; 等級在上的） above...
- 程 : 名詞1 （規章; 法式） rule; regulation 2 （進度; 程序） order; procedure 3 （路途; 一段路） journe...
- 水 : 名詞1 （由兩個氫原子和一個氧原子結合而成的液體） water 2 （河流） river 3 （指江、河、湖、海、洋...
- 準 : Ⅰ名詞1 （標準） standard; guideline; criterion; norm 2 （目標） aim; target Ⅱ動詞1 （依據; 依照）...
- 儀 : 名詞1 （人的外表） appearance; bearing 2 （禮節; 儀式） ceremony; rite 3 （禮物）present; gift 4 ...
- 水準 : standard; level
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The paper expounds the principle of triangular elevation surveying and its accuracy, and further presents the accuracy norm for 4 ( superscript th ) grade of leveling surveging
摘要闡述全站儀三角高程測量的原理及精度，在此基礎上得出達到四等水準測量的精度要求。According to the request of this subject, we have developed the system hardware and software for the slave device and the inspection software running on the pc. in this paper all of the followings is illustrated detailedly, such as the research on the principles of measurement and its realization, three means of water - level measurement that are separately based on photo electricity coder, pressure sensor and potentiometer ; selection of the microchip, we choose an advanced integrated soc ( system on chip ) microchip c8051f021 as the main controller ; realization of signal sampling, processing and its conversion in the mcu ; application of high precision 16 bits adc cmos chip - - ad7705 in our system, designing its interface with the microchip and relevant program ; using a trickle charge timekeeping chip ds1302 in the system which can provide time norm and designing of its i / o interface and program ; additionally, a 4 ~ 20ma current output channel to provide system check - up using ad421. in the system, ad421, ad7705 and the microchip compose spi bus ; to communicate with the master pc, here we use two ways which are separately rs232 and rs485 ; moreover, there are alarm unit, keyboard unit, power supply inspection unit and voltage norm providing unit in the system
針對研製任務的要求，課題期間研製了下位機系統硬體和軟體，開發了上位機監控軟體，其中所作的具體工作包括：測量原理的研究和在系統中的實現，在本次設計中用三種方法來進行水位測量，分別是旋轉編碼器法、液位壓力傳感器法和可變電阻器法；主控晶元的選擇，我們選用了高集成度的混合信號系統級晶元c8051f021 ；實現了信號的採集和處理，包括信號的轉換和在單片機內的運算；高集成度16位模數轉換晶元ad7705在系統中的應用，我們完成了它與單片機的介面設計及程序編制任務；精確時鐘晶元ds1302在系統中的應用，在此，我們實現了用單片機的i o口與ds1302的連接和在軟體中對時序的模擬，該晶元的應用給整臺儀器提供了時間基準，方便了儀器的使用；另外，針對研製任務的要求，還給系統加上了一路4 20ma模擬信號電流環的輸出電路來提供系統監測，該部分的實現是通過採用ad421晶元來完成的，本設計中完成了ad421與單片機的spi介面任務，協調了它與ad7705晶元和單片機共同構成的spi總線系統的關系，並完成了程序設計；與上位機的通信介面設計，該部分通過兩種方法實現： rs232通信方式和rs485通信方式；系統設計方面還包括報警電路設計、操作鍵盤設計、電源監控電路設計、電壓基準電路的設計。Combining the construction survey of expressway, this paper presents the leveling survey method which adopts total station optical electronic tacheometric theodolite instead of leveling instrument, and gives a comparison between the two kinds of devices from such aspects as speed and accuracy, which reveals the reliability and efficiency of the application of total station optical electronic tacheometric theodolite for class four leveling survey
摘要結合高速公路的施工測量，對在工程施工過程中可以用全站儀代替水準儀進行水準測量的方法進行介紹，並從速度、精度對使用兩種儀器進行了比較，說明用全站儀進行四等水準測量的可靠性和高效性。But transfers the oil to put the water station is the oil field production important link, how appropriately chooses, the design safely reliable, the data display accurate, the ease of operation nimble, is advantageous for the maintenance computer observation and control system, guaranteed the oil field measuring appliance, the microcomputer systematic security, is accurate, the steady movement, the optimized control, the realization safety in production and the energy conservation falls consumes, saves the manpower, the physical resource, enhances the working efficiency, and the production management level, is we at present in an oil field production important topic
而轉油放水過程是油田生產的重要環節，如何恰當選擇設計安全可靠、數據顯示準確、操作方便靈活、便於維護的計算機測控系統，保證儀表、微機系統安全、準確、平穩運行，優化控制，實現安全生產和節能降耗，節省人力、物力，提高工作效率及生產管理水平，是我們目前油田生產中的一個重要課題。本論文結合油田轉油放水生產過程的實際情況，以及計算機、 plc技術在油田的應用、發展現狀，研究了微機測量控制系統的設計方案、檢測儀表的選型、信號的傳輸處理、計算機軟體的設計、硬體選擇及實現。分享友人