電熱式儀表 的英文怎麼說
中文拼音 [diànrèshìyíbiǎo]
電熱式儀表
英文
electrothermal instrument- 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...
- 式 : 名詞1 (樣式) type; style 2 (格式) pattern; form 3 (儀式; 典禮) ceremony; ritual 4 (自然科...
- 儀 : 名詞1 (人的外表) appearance; bearing 2 (禮節; 儀式) ceremony; rite 3 (禮物)present; gift 4 ...
- 表 : Ⅰ名詞1 (外面;外表) outside; surface; external 2 (中表親戚) the relationship between the child...
- 儀表 : 1. (人的外表) appearance; bearing 2. (各種測定儀) meter; instrument; apparatus
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Tensile properties and impact properties measurements were done at room temperature. the volume resistivity of rectangular samples was measured using a zc36 electrometer and a high 240a voltage supply, for samples with a low resistivity level a dt - 9205b digital multimeter was used, silver paint was applied to ensure complete contact between sample and electrodes, namely, to eliminate the contact resistance. the phase morphology of blends was also studied using a jeol jsm - 5900lv scanning electron microscope ( sem )
體積電阻率的測定:當r _ v 10 ~ 8時,製成100 100 4mm板材,用zc36型高阻儀測量;當r _ v 10 ~ 8時,用dt - 9205b型數字式萬用表測試試樣的體積電阻,為了減小接觸電阻對測試的影響,採用銀導電膠將銅片粘接在試樣的兩個端面上,靜置24小時,待銀導電膠凝固,試謝長瓊:熱拉仲對pet / pe / cb復合導電體系形態和性能的影響樣的電阻穩定后再測量。For many years, the drying furnace has been adopted with sealed structure and electrical heated, dial instruments are used to control the temperature of the drying furnace and to keep it invariable. parameter setting is inputted by manual method, heating time is completely controlled by operators ’ experiences or their moods, meanwhile, its control function is singular, not only having no automatic heating time and insulating monitoring, having no drying process monitoring, but also having no function of automatic recording and report printing, the workers ’ labor intensity is bigger. thus two abnormal situations are always come forth, one is the insulating performance and intensity of works cannot be guaranteed reliably, it perhaps need to be dried repeatedly, the other is always to extend the drying time in order to ensure the drying quality
多年來乾燥爐一直採用悶罐式結構和電加熱方式,溫度控制採用指針式溫度控制儀表來實現爐溫的恆定,其參數設定由人工輸入,時間控制則完全憑操作者的經驗、情緒來掌握,其控制功能單一,沒有時間控制、絕緣自動監測功能,也沒有乾燥過程監視功能,更沒有多要素記憶、列印存檔功能,工人的勞動強度較大,所以就經常出現兩種異常結果:一是工件的絕緣性能和強度得不到可靠保證,需要反復乾燥;另一種是為保證乾燥質量,往往要延長乾燥時間。A farmer field school was opened in each pilot county after training, which will be used as platforms for village township level trainings and extensions. the trainings and activities of sustainable agriculture development project have raised attentions from local governments and media. deputy directors from training counties addressed their sessions, and local tvs reported training and farmer field school activities
此次培訓以及中加可持續農業發展項目在當地所開展的其它活動受到了當地政府和群眾的關注,各項目縣的副縣長均出席了培訓班開班典禮並發表了熱情洋溢的講話,當地電視臺也對此次培訓活動以及農民田間學校開班儀式進行了跟蹤報道。In this paper the development and status in quo about temperature measuring technologies and instruments for temperature measurement are fist summarized, and the characteristics and localizations of the current hardware - based instrument for temperature measurement are also pointed out ; and then we take the thermocouple and thermo - resistance instrument for temperature measurement as the example to analyze the most representative temperature measurement and the principle of instrument, including the temperature measuring mechanism, physical structure and notices ; an advanced manufacture technology of instrument - - - virtual instrument technology and the virtual instrument based on which are introduced in succession. this paper also narrates at length the origin, characteristics and system structure. the virtual instrument and hardware - based instrument are contrasted, which stands out the superiority of virtual instrument ; finally we combine virtual instrument and the technology of temperature measurement, which comes into being the virtual multi - channel instrument for temperature measurement debated in detail in this paper
本文首先概述了常用的溫度測試技術和溫度測試儀器的發展與現狀,指出了當前硬體化溫度測試儀器的特點和局限性;然後以熱電阻測溫儀和熱電偶測溫儀為代表分析了最具代表性的溫度測試與儀器的原理,其中包括它們的測溫機理、物理結構和注意事項;接著介紹了一種先進的儀器製造技術? ?虛擬儀器技術以及在此基礎上形成的虛擬儀器,對虛擬儀器的產生、特點、系統結構做了較詳細的介紹並和傳統硬體化儀器做了對比,突出了虛擬儀器的優越性;最後把虛擬儀器和溫度測試技術相結合,形成了本文著重介紹的虛擬式多通道溫度測試儀。Welded edge sheathed thermocouple is used to measure surface temperature of heat furnace pipe and smoke pipeline and widely applicable for oil refining, power generation, metallurgy, chemical fibre and food etc
刀刃式鎧裝熱電偶是用於測量加熱爐管和煙道管表面溫度的儀表,廣泛應用於煉油電力冶金化纖食品等General model c38 dc meters are portable taut - band suspended moving coil instruments with light - spot indication. the meters have the feature of extremely high in sensitity and small in consumpition being particularly suitable to be used for measuring weak electric quantity on dc circututs, also for testing the static paramenters of transistors as well for measuring the output of millivolt values of zhermocouple in the vacuun furnaces ( or hydrogen furnaces )
C38型直流電表是磁電系張絲支承光點指示可攜式電表儀表具有極高的靈敏度,功耗小,特別適合弱電量直流電路測量及晶體管靜態參數測試用以及用做真空爐(或氧氣爐)中測量熱電偶的輸出毫伏值In order to improve measurement precision and display fidelity of the instrument, three new methods of nonlinear calibration of thermal instruments, which are based on intelligent control theory, are presented in this paper, such as nonlinear compensation of zr02 oxygen measurement instrument using bp nn, nonlinear calibration of temperature measurement sensors using cmac nn and nonlinear identification of throttle flow meter using ga. these methods prove to be not only simple but also effective
火電廠熱工儀表普遍存在非線性特性,為了提高參數測量的準確度和儀表顯示的精確度,基於智能控制理論,文中提出了熱工儀表非線性校正的新方法: bp神經網路補償氧化鋯氧量計非線性特性的方法、 cmac神經網路校正測溫傳感器非線性特性的方法、遺傳演算法辯識節流式流量儀表非線性特性的方法。Type example : a project need functions of control temperature instrument are : single screen display communication mode with up - level machine is rs - 485, transmit field temperature to standard dc ma signal output, with 2 relays control output sensor is k thermocouple, outline dimension is 9696
型號舉例:某工程需控制溫度儀表功能為:單屏顯示與上位機通訊方式為rs - 485將現場溫度轉換成標準的dc 420 ma信號輸出另帶2個繼電器控制輸出傳感器為k型熱電偶外形尺寸為9696 。The intelligent instrument module achieves the functions of collecting and processing hot network stream parameters, and offers multiple communication interfaces ; the communication module provides three communication ways of internet > pstnnwireless station to realize the function of central collecting and managing steam flow information ; the monitoring management module, which adopts advanced programming languages, performs the functions of data collection, exchange, disposal, query and report print and so on
智能儀表模塊完成對熱網蒸汽參數的採集和處理功能,並提供多種通信介面;通信模塊提供internet 、 pstn 、無線數傳電臺三種通信方式,實現了蒸汽流量信息的集中採集及管理;監測管理模塊通過高級語言編程完成了數據採集、交換、處理、查詢及報表列印等功能。As a sensor of temperature measurement and adjustment, in dustrial ceramic thermal resistance are used to measure surface temperature in the range of - 200 to 600 of liquid, gas and solid in manufacture processes having various advantages of high accuracy, stable performance, convenience in maintain
工業用裝配式熱電阻作為溫度測量和調節的傳感器,通常用來和顯示儀表配套,以直接測量生產過程中- 200600范圍內的液體氣體以及固體表面的溫度,具有精度高性We can realize the instrument control system and electric control system by using dcs and plc. the control system of reheating furnace is devided torol furnace area plc control system, roll plc control system and reheating furnace dcs control system. the controller of instrument and electric connect to the server of the operater station by the controlnet, by using dcs and plc, the technology of network and fieldbus technology to combine the process control system and process computer, intelligent instruments, drive system to realize the instrument and electric controll in one system
採用dcs系統plc實現儀控和電控系統,把步進式加熱爐控制系統分為加熱爐爐區plc控制系統、加熱爐前後輥道plc控制系統、加熱爐dcs控制系統等三個子系統,儀表、電氣傳動用的控制器通過同一controlnet控制網與操作站的服務器連接,通過採用網路技術和現場總線技術,將控制系統與過程機、現場智能儀表和傳動設備連成一個整體,從而構成儀電一體控制系統。This system is utilized the programmable controller ( plc ) bearing of substitution rule ( the figure is apparent the form, writing instrument, individual loop controller, the hand is holded the utensil and is reached to assist the bearing unit and await ), achieve the 29mw ' s cycle stream of water warmhearted water boiler, oxygen remover, warmhearted net system control system together with monitoring voluntarily of electric section together with control being living, the rule to call off greats quantity displays the bearing in that system, boiler, oxygen remover, the warmhearted net operation is achieved crt and is supervised completely, manipulates personnel staff is living inner place the control cabin completely completees failure - free operation and trouble removal operation. the predictive target of putting ino production queen is the boiler, oxygen remover, the warmhearted net is achieved comprehensive self - regulation, moreover be able to be over a long period of time, steady secure operation
本系統利用可編程式控制制器( plc )替代常規的儀表(數顯表、記錄儀、單迴路控制器、手操器及輔助儀表裝置等) ,實現29mw循環流化床熱水鍋爐、除氧器、熱網系統控制系統與電氣部分的自動監測與控制。在該系統中取消大量的常規顯示儀表,鍋爐、除氧器、熱網的運行實現crt全面監控,操作人員在控制室內全部完成正常運行及事故處理操作。投產后的預期目標是鍋爐、除氧器、熱網實現全面自動調節,並能長期、穩定、安全運行。And the controlling method of pi makes the temperature control quick and stable. at the same time, the paper completes the mutual communication between temperature control equipment and computer by way of serial interface and usb interface, so as to realize the remote control of computer to the temperature control equipment. finally, the performance test of the semi - conductor temperature control equipment researched in this paper is carried out, and the results show that the precision of the temperature of the controller of semi - conductor can reach to 0. 2, and the degree of temperature stablization is less than 0. 05
整個系統採用閉環控制結構,使系統的抗干擾能力大大增強;為半導體製冷器量身定做的驅動電路,可以方便的調節通過tec電流的大小和方向,使tec加熱製冷靈活迅速的特點得到充分發揮;使用比例積分( pi )的控制方法使得溫度控制快速穩定;同時,本文還實現了溫控儀與上位機通過串列口和usb口兩種方式的通訊,實現了上位機對溫控儀的遠程控制;最後,對所研製的半導體溫度控制儀進行了性能測試,測試結果表明,半導體溫度控制儀溫控精度達到0 . 2 ,溫度穩定度小於0 . 05 ,滿足了系統設計的要求。Because it can spur managers and employees to work hard for company ' s development for a long time, at the same time, eso play an important role in curtailing cost of commission and agency. in the late of 19th, eso was introduced to china, a lot of entrepreneurs and academicians express the passion and enthusiasm greatly to it
90年代後期,我國也引進了這種制度,企業界和學術界對此表現出了極大的熱情和積極性,上海儀電、上海貝嶺、吳中儀表、天津泰達等就是這時涌現出的幾種模式。分享友人