數位電子技術 的英文怎麼說
中文拼音 [shǔwèidiànzijìshù]
數位電子技術
英文
digital electronic technique- 數 : 數副詞(屢次) frequently; repeatedly
- 位 : Ⅰ名詞1 (所在或所佔的地方) place; location 2 (職位; 地位) position; post; status 3 (特指皇帝...
- 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...
- 子 : 子Ⅰ名詞1 (兒子) son 2 (人的通稱) person 3 (古代特指有學問的男人) ancient title of respect f...
- 技 : 名詞(技能; 本領) skill; ability; trick; technique
- 術 : 術名詞1. (技藝; 技術; 學術) art; skill; technique 2. (方法; 策略) method; tactics 3. (姓氏) a surname
- 數位 : numerical digit; digit; place; digit position
- 電子 : [物理學] [電學] electron
-
Results the diagnostic accuracy of cut film with conventional ap and lateral views was 80. 5 %, the diagnostic accuracy of cine film with angulated views was 90. 0 % and the diagnostic accuracy of dsa using non - ionic contrast medium with angulated views was 96. 5 %
結果用快速換片心血管造影設備和常規正側位元投照時的兒童先天性心臟病心血管造影診斷符合率為80 . 5 % ,用電影心血管造影設備和軸位元成角投照技術時的造影診斷符合率為90 . 0 % ,採用數字減影心血管造影設備,軸位成角投照技術和非離子型對比劑時的造影診斷符合率為96 . 5 % 。Depend on the comprehensive analysis and study of the structure, principle, and exterior characteristic of the motor, through the methods of system modeling and digital simulation analysis, two kind of control device that work for the low voltage ( lvdc ) and the high voltage ( hvdc ) in avigation are researched respectively. point to the control technique of close - loop speed stabilization at a limited adjustment speed range, we bring out the close - loop speed control method that using the rotor position sensor indirectly measure the speed of the motor
在全面分析了稀土永磁無刷直流電動機的結構特點、工作原理、運行方式以及外部特性的基礎上,通過系統建模和數字模擬分析,分別針對航空低壓直流( lvdc )和高壓直流( hvdc )兩種電動機構用永磁無刷電動機,在小范圍轉速連續調節下的閉環穩速控制技術進行了詳細理論研究,提出了利用轉子位置傳感器信號間接測量電機轉速進行電機轉速閉環穩速控制的策略。Of course, many in the industry hope that this technology will eventually lead to fully optical computers ? superspeedy digital systems in which photons rather than electrons serve as 0s and 1s
當然,業界有許多人希望日後能運用這些技術發展出全光學電腦,以光子取代電子來代表0與1 ,構成超高速數位系統。The third, after theoretically analyzing, the following practicable methods are put forward : 1 ) automatically pick - up the synchronous information by analyzing the spectrum of intercepted video - leaking information ; 2 ) realizing the phase lock and the electronic image stabilization by integral - projection and differential - positioning ; 3 ) improving the effect of accumulation mean filter and the pectination filter by using electronic image stabilization ; 4 ) automatically adjusting image acquisition parameters by detecting the image entropy, therefore the quality acquired image is improved ; 5 ) to realize the quantitative test of a leaking extent, a standard test picture was designed. finally, a proto type for leaking information processing based on our techniques mentioned above and the virtual instrument principle was designed and tested
在理論分析的基礎上,提出了以下的實用技術: 1 )用譜分析方法從截獲的信息中自動提取同步信息; 2 )用積分投影、微分定位的方法進行相位檢測,實現可靠的鎖相和電子穩像; 3 )將電子穩像技術用於重加濾波和梳狀濾波的濾波方法,改進了濾波效果; 4 )通過檢測圖像信息熵實現圖像採集參數的自動調整,改進了圖像採集的質量; 5 )設計了用於儀器定標的標準測試圖,可以對泄漏信息進行定量檢測。Hamalaya digital image technology company. ltd. which provides digital image and print service is located in wuhan optics vallay and has branches and chain shops in shanghai, shenzhen, beijin and changshaat the beginning of establishment, the managements considered how to take advantage of the internet. the ec department is charge of the item - the electronic business system
喜瑪拉雅數字成像技術有限公司是一家專業從事數碼影像和數字快印服務的公司,總部位於武漢光谷,並分別在武漢,上海,深圳,北京和長沙等地擁有分公司和加盟店,公司于成立之日就考慮落地店與網際網路的對接,因此電子商務部於2001Electronic comparators. angular dimensional sensors. technical data sheet
電子比較儀.角位移傳感器.技術數據表A data acquisition system with the following features is realized : ? transmission rate up to 100kbyte / s over usb ; ? system ' s dynamic range as high as 120 db ; ? multi - kind of trigger mode control ; ? sampling rate as high as 100 ksps ; ? 12 - bit a / d conversion accuracy ; ? 32k bytes on - board data memory ; ? the system, which was made up of large - scale electronic chips, is small, light and portable, and suitable for field use
本設計最終實現了一個瞬態信號數據採集系統,它具有以下特點: ?採用usb介面進行高速數據傳輸,傳輸速度達100kbyte / s ; ?採用浮點a / d轉換技術,動態范圍達120db ; ?多種采樣觸發控制方式; ?最高采樣率100ksps ; ? 12位采樣精度: ? 32kb數據緩存; ?使用新型大規模電子器件,系統結構緊湊,重量輕,適合野外作業。The tianjin technical commercial street locating in anshanxi road is the starting area of tianjin hi - tech industrial park, established in 1988, the street created the first hi - tech enterprise of the city, and developed now more than 1000 hi - tech enterprises including cybermart, buynow tech, companies spread alongside the anshanxi road and baidi road formed an ensemble of hi - tech enterprises and a distribution centre for electronic information products of tianjin
位於鞍山西道的天津科技貿易街是天津市新技術產業園區的起步區, 1988年建街並孵化誕生市內首家高新技術企業,現已發展賽博數碼廣場百腦匯等高新技術企業1000多家,形成了以鞍山西道白堤路沿線密布的高新技術企業集聚地和天津電子信息產品集散地。Main technic of giss webgiso thus function modules architecture and network topological structure are confirmed webgis system implements the basic function of electronical map, such as map zoonu pan, and the abundant query of geograph and database by using maplnfo mapxtreme for java as map server and jsp., java technico this system also can implement the routing of linesx analysing of buffer and so on0 this paper advances storage model of roads and pipelines topology data, efficiently solves the maintenace problem of network topology data of webgis and implements the shortest path algorathm based on webgis by improving it0 the system has better opening by suppling database interface of map ? the system has perfect on - line help and user forum and favorable interfaces and implementation of this system makes fundament for the further research of webgiso
本系統利用mapinfomapxtremeforjava作為地圖服務器,採用jsp和java技術,實現了基於webgis的電子地圖的縮放、漫遊等基本功能,並具有豐富的圖文定位查詢功能;實現線路路由、緩沖區分析等輔助決策功能;構建了道路管線網路拓撲數據的存儲模型,有效地解決了基於webgis的網路拓撲數據的維護問題;對dijkstra演算法進行了一些改進,實現了基於webgis的最短路徑演算法;本系統提供了電子地圖數據庫介面,使本系統具有很好的開放性和通用性; webgis系統軟體具有完善的在線幫助和用戶交流論壇,人機界面友好。Additionally, consisting with the transaction mode of e - commerce and the digitization of paying tax, taxation levying and auditing are suggested to be consequently re - constructed
本研究所得之結論為電子商務交易應課徵營業稅及所得稅,此外,為適應電子商務交易的交易模式,主要的付款行為已數位化,所以課徵的方法、查緝的技術,均必須設法改弦易轍。After discussing the movement of open access and institutional repositories, the author seeks to promote innovative, creative, and affordable ways of sharing scholarly findings and tries to build common understandings of the challenges presented by electronic scholarly communication and to generate strategies for transforming the collection development
最後提出關注學術傳播的變遷、形塑電子館藏管理的新觀點、邁入館藏內容管理的新思維、促進校園知識管理的集成、置身於數位化學術出版的一環、重視信息取用系統的便利性、培育圖書館員的新技能以及強化圖書信息學的課程等建議,供同道參考。The interpolate technology just like a " ruler ", the resolving power of the " ruler " affect that the sampling points are arrayed correctly on time axis, and is determined by the multiple of the double slope integral amplifier. so it is core in the whole project. the project apply the complicated program logical device ( cpld )
內插技術的應用使得隨機采樣理論能夠得以實現,內插技術相當于測量用的「尺子」 , 「尺子」最小分辨能力決定了最後采樣點重新在時間軸上位置排列的真實可靠程度,這里尺子的最小分辨能力是由雙斜率積分時間擴展器放大倍數決定的,所以說該模擬充放電放大電路在整個方案中是個很關鍵的部分。In this paper, a high integrated and intelligent digital dsp - spm system is developed based on the nspm6800 spm manufactured by the beijing zhongke mechanical & electrical equipment co. at present, the pc of spm system is burdened with not only sending and receiving data, but also disposing of image, which hinders the enhancement of speed of the system. in addition, as the function of spm is expanding, including tappingmode afm, efm, mfm, scm, etc, one hand, it amplifies the range of the application of spm, on the other hand it also means that the task of autocontrol and data transfer heavier. the advantages offered by the dsp compared to analog systems include considerable flexibility in the choice of the signal processing algorithm and greater ease in managing control parameters by the host computer, which are very important for the improvement of spm
本課題以北京市中科機電設備公司的nspm - 6800型掃描探針顯微鏡為基礎,重新設計了以dsp為控制核心的控制系統,主要解決原系統存在的以下問題: ( 1 ) pc機既要實時控制數據的採集與發送,又要進行圖像的后處理,整個系統的實時性難以達到要求; ( 2 )隨著spm功能的擴展,一方面包括輕敲式原子力顯微鏡、電場力、磁場力、掃描容場顯微鏡等技術在內的spm技術擴展了儀器的測試范圍和功能,另一方面也意味著自動控制量的增加和數據處理量的增加; ( 3 ) 16位a d 、 d a都採用的是購買的板卡,也通過isa槽插在pc機內,成本高,不利於擴展; ( 4 )另外,數字板通過isa槽插在pc機內,易受于擾,而且給安裝帶來不便。Theory research based on overrelaxation : according to electromagnetic theory fundamental equation, boundary condition is analyzed, iterative formula is deduced, overrelaxation factor is selected and calculation program is composed. through calculation on varied parameter, a group of suitable parameter is found out. in the third chapter : the conclusion of theory research is verified through experiment
理論研究使用超鬆弛迭代法:根據麥克斯韋電磁理論基本方程,建立了磁場浙江大學博士學位論文:行程傳感液壓缸基礎技術的研究分析數學模型,分析了邊界條件,推導了迭代公式,確定了鬆弛因子,編制了運算程序,通過對不同參數的試算,找到了一組有規律參數之間的關系。Regard how to structure the control system of sensorless bldcm with dsp - tms320f240 as the centre in this paper, the detailed argumentation course of the motor startup, bemf terminal voltage measurement and control strategy is given out, give and pay concrete details for the software and hardware realization and experimental result. in order to treat the bldcm control system with dsp clearly, the full paper divides into six chapters altogether : chapter one, introduceing the development course, the structure characteristic and operation principle, etc. of bldcm in the introduction ; chapter two, directed against the startup issue of bldcm, the chapter give and publish the rotor measure pulse orients technology for motor startup in detail ; chapter three, proceed with mathematics model of the bldcm, expounding the control schemes ; chapter four, two important devices introducing : dsp ( 240 tms320f ) and power invertor control chip ( ir2131s ) ; chapter five, give and publish the detail of hardwares of control system ; chapter six, by ccs ide of ti, realize the control schemes in the front chapters with software, offere the procedure flow chart of main subroutine and some key place of programming, the experiment result in addition
全文共分六章:第一章、緒論中介紹了bldcm的發展歷程、電機本身的結構特點和工作原理等;第二章、針對五位置傳感器bldcm的起動問題,文中詳細給出了檢測脈沖轉子定位起動技術;第三章、從電機的數學模型入手,詳細論述了反電動勢端電壓法和系統的控制策略;第四章、介紹了硬體實現中的兩個重要器件: dsp ( tms320f240 )和功率管逆變器控制晶元( ir2131s ) ;第五章、詳細給出了控制系統的硬體實現細節;第六章、利用ti提供的ccs集成開發環境,將前面章節的控制方案用軟體加以實現,給出了主要部分的程序流程圖和一些編程要點以及實驗結果。Professor chen obtained his ph. d. in organic chemistry in 1971 from oklahoma state university in the united states. in 1973, he joined eastman kodak company and engaged in the design and synthesis of optoelectronic materials and the development of various digital imaging technologies
陳金鑫教授於一九七一年在美國俄克拉荷馬州國立大學取得有機化學博士學位,並於七三年加入伊士曼柯達公司,負責有關光電子的設計及合成,以及多種數碼影像技術的開發。Intelligent transportation systems ( its ) is an accurate and efficient real time urban traffic management system with application of advanced information technology, data communication technology, electronic control and computer processing technology. as we all know it is the best way to solve the problem of the traffic transportation field, especially traffic jam, traffic accidents and traffic pollution
智能運輸系統( its ) ( intelligenttransportationsystem )是在關鍵基礎理論模型研究的前提下,把先進的信息技術、數據通訊技術電子控制技術及計算機處理技術等有效地綜合運用於地面交通管理體系,從而建立起一種大范圍、全方位發揮作用,並實時、準確、高效的交通運輸管理系統。This master degree thesis, based on the observing of developing actuality of on - site electrical apparatus monitoring technology, aims at overcoming the problems existing in former on - site monitoring system, such as unable to realize multiple channels sampling and hold, unable to carry out multiple channel programmable magnification, unable to monitor frequency, low pick up bits, external rom low speed data saving, inefficient data query method, inflexible debugging and installation, low precision etc. by introducing eda ( electrical design automation ) technology, we put forward a creative circuit design scheme, which can considerable updated the on - site monitor system
本文根據電氣設備絕緣在線監測技術的發展現狀,針對以往在線監測數據採集系統存在的集成度低,不能實現多通路并行采樣,不能實現多通道同時程式控制放大,不能進行同步頻率監測,采樣位數較低,採用外部存儲器方式,對數據進行查詢的訪問方式,安裝調試不靈活等缺點,提出了應用現代微電子技術電子設計自動化( eda )技術實現對在線監測數據採集系統的改進。According to the business enterprise of high and clear electronics technique that beautiful and internal personage of country reveal, a by name of pass village of middle ten days of month, peking inside of january " release on having grade creep that the product of the right of independence knowledge player of high and clear arithmetic figure movie " brief name hdv, declare is a machine to change the on behalf product, and can be used as to use to come the with broadcast the video - disc machine of the program of high and clear degree 200 ten thousand pixel arithmetic figure. the country is beautiful already with the cooperation throw in last million dollars on the hdv
據國美內部人士透露, 1月中旬,北京中關村一家名為「凱誠」的高清晰電子技術企業推出一具有自主知識產權的產品「高清晰數字電影播放機」簡稱hdv ,聲稱是dvd碟機的升級換代產品,可以作為用來存儲和播放高清晰度200萬像素數位元組目的影碟機。國美已與「凱誠」合作在hdv上投入了上百萬元。With recent advance in micro - electronics technologies, fpga ( field programmable gate array ) has become more and more important in digital system design, because of its high performance in terms of scalability, functionality and so on
近幾年來,由於微電子技術的迅猛發展,使得fpga (現場可編程門陣列, fieldprogrammablegatearray )的性能指標,比如規模、功能等越來越好。因此, fpga在數字系統設計中占據了越來越重要的位置。分享友人