電工水準儀 的英文怎麼說
中文拼音 [diàngōngshuǐzhǔnyí]
電工水準儀
英文
electricians level- 電 : Ⅰ名詞1 （有電荷存在和電荷變化的現象） electricity 2 （電報） telegram; cable Ⅱ動詞1 （觸電） give...
- 工 : Ⅰ名詞1 （工人和工人階級） worker; workman; the working class 2 （工作; 生產勞動） work; labour 3 ...
- 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 ...
- 電工 : 1 （電工學） electrical engineering; electrotechnics2 （製造、安裝電氣設備的工人） electrician電...
- 水準 : standard; level
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If we can find a way to artificially enhance the adsorption of activated carbon, its benefits on economy and environment will be considerable. it is the aim of this work to investigate electrosorption of chloroform in water on granular activated carbon. the potentials on working electrode are controlled by potentiostat and the concentration of chloroform is measured by headspace gas chromatography
實驗用恆電位儀作控制電源，調節工作電極電位（相對于參比電極電位）來控制加在活性炭上的電場，用頂空進樣法測定水中氯仿的剩餘濃度，參照方法與依據都是國家標準方法或國外先進方法。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。Xmt series intelligence digital indicate controller and have advantanges of small size and high anti - interference. the products are manufactured according to the international standards and use transformer or 85 ? 264vac wide range input switch power. multiple installation dimensions allow for compatibility with most of the automatic industrial controlling / adjusting instruments in the world in respects of performance specificatons, input patterns, output functions and installation dimensions. therefore, the products are digital controllers at internationally advanced level
Xmt系列智能數字顯示控制器，體積小，抗干擾能力強，產品按國際標準製造，採用變壓器或85 ? 264vac寬范圍輸入的開關電源，並有多種外型尺寸，能與世界大多數工業自動控制/調節儀表在性能指標、輸入方式、輸出功能、安裝尺寸上兼容，是具有國際先進水平的數字控制器。
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