高速進位電路 的英文怎麼說
中文拼音 [gāosùjìnwèidiànlù]
高速進位電路
英文
high-speed carry circuit- 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...
- 速 : Ⅰ形容詞(迅速; 快) fast; rapid; quick; speedy Ⅱ名詞1 (速度) speed; velocity 2 (姓氏) a surna...
- 進 : 進構詞成分。
- 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...
- 路 : 1 (道路) road; way; path 2 (路程) journey; distance 3 (途徑; 門路) way; means 4 (條理) se...
- 高速 : (高速度) high speed; high velocity (hv); high rate; swift; fast; express; high-speed
- 電路 : [訊] circuit (ckt); electric circuit; electrocircuit電路板 circuit board; 電路保持 guard of a c...
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In order to make the sensitivity of 2 - demension accelerometer along the two main arbors almost identical, symmetric four - beam structure that embeds a double - sides interdigitated differential capacitive with puckered beam in two directions was used as sensitive component. in addition, the differential capacitive accelerometer fabricated by bulky silicon micromechanical technique has high sensitivity, wide measurement scope, less nonlinear error, and simple converting circuit. then, the structure parameters of the sensitive component were calculated and stimulated, which results in a set of the optimized structure design parameters, main fabrication procedure and several key fabrication technology
為使二維振動傳感器在兩主軸方向的靈敏度大致相同,敏感元件採用高度對稱的四梁結構,其中每個軸向上均採用帶折疊梁的雙側叉指電容結構,採用體硅微機械工藝製作的高深寬比叉指電容式敏感元件,具有高靈敏度、寬量程、非線性誤差小、外圍電路簡單等優點;對設計的敏感元件結構參數進行了計算,並利用有限元法進行了模擬分析,根據模擬結果得出了優化參數;在確定敏感結構的基礎上,研究了敏感元件採用體硅微機械加工工藝製作的工藝流程和關鍵工藝技術;對敏感晶元內部的c - v介面電路進行了原理設計與分析,利用差動測量技術得到由振動引起的微小電容變化量,經c - v介面電路進行相位調制處理,然後通過解調輸出與加速度成正比的電壓信號。Now, with the rapid development of computer and electronics, there have been a great progress in the field of input / output device technology. among this field, pci has been a current standard interface of pc. and in order to accommodate the development of operating system, wdm has been a driver model adopted by industry generally. at the same time, in the respect of sensor ’ s application, a high precision and high integrated incremental rotary encoder has been an outstanding one among the displacement sensors. meanwhile, eda technology and cpld / fpga chip applied in the signal processing circuit are approved by a great number of engineers who are engaged in designing the electronic device
目前,隨著計算機技術和電子技術的飛速發展, i / o設備介面控制技術領域有了長足進步。其中, pci介面成為主流的微機標準介面,而與操作系統平臺的發展相適應, wdm已成為業界普遍採用的驅動程序模式;同時,在傳感器應用方面,高精度、高集成的增量式旋轉編碼器已是位移型傳感器中的佼佼者,而eda技術和cpld / fpga器件在信號處理電路中的應用被廣大電子設計人員所認可。Send the real - time position, velocity of the moving object. received by gps oem caxd, associaied with the status information of the vehicle devices, to the monitoring centef, by way of the mobile conununication network. the monitoring system, based on some gis software, displays the tracks of the mobile objects on the eiectronic map, and users could supervise and query their iaterested parameters such as the location or velocity of the vehicle, the general information of vehicles, as so on, so that provide bases for vehicle management, improve the efficiency, or assure vehicles against accidents
車輛監控系統是its的重要組成部分之一,它將全球衛星定位技術、地理信息技術( gis )和現代通信技術結合在一起,通過將裝有gps接收機的移動目標的動態位置、速度、狀態等信息,實時地通過無線通訊鏈路傳送至監控中心,在具有強大的地理信息查詢功能的電子地圖上進行移動目標運動軌跡的顯示,並可以對目標的準確位置、速度、運動方向、車輛狀態等用戶感興趣的參數進行監控和查詢,為調度管理提供可視化依據,提高車輛的運營效率,確保車輛安全。A testbench program is edited to simulate the behavior of the fifo. after the software simulation is accomplished, a real hardware circuit is designed to multiplex two data channels ( 1553b data channel and 1394 data channel ) according to ccsds standard. during the experiment and hardware debugging, the output logic of the fpga is checked up
設計中,用vhdl語言對高速復接器進行行為級建模,為了驗證這個模型,首先使用軟體進行模擬,通過編寫testbench程序模擬fifo的動作特點,對程序輸入信號進行模擬,在軟體邏輯模擬取得預期結果后,繼續設計硬體電路,設計出的實際電路實現了將來自兩個不同速率的信源數據( 1394總線數據和1553b總線數據)復接成一路符合ccsds協議的位流業務數據。It can be used in any complex environment, can locate all paths from transmitter to receiver which avoid redundant calculation, and it is a standard 3 - d forecast model ; in addition, it is a point to point ray tracing method based on specular theory which do n ' t carry out the receive test ; furthermore the model adopt the reverse arithmetic which exert the tree concept in data frame and establish a virtual fountain tree permanently, the proagmme can back - search the virtual fountain tree when it is running. these operation increase the calculate speed and it result in the higher receive efficiency and precision. the thesis design a programme to compare the prediction results based on ray tracing method of virtual fountain tree between the measurement results and prediction results based on the other transmittion models. the comparsion result indicate the new model is a better model
它可應用於任何復雜的傳播環境中,能找到發射機到接收機之間的所有電波傳播路徑而無須冗餘的計算,是一種準三維的預測模型;另外,從本質上講,它仍然是一種基於鏡像理論的點對點的射線跟蹤法,所以它無須進行接收測試;而且由於採用了反向演算法,運用數據結構中多叉樹的概念,先確定需要計算的場點位置,找出所有能從源點到達場點的射線,並且可一次性建立一個虛擬源樹,以後每次的計算只要通過對該樹進行後序遍歷即可,大大提高了運算速度,因而有較高的接收效率與精度。本文對該模型進行了相應的模擬,並將其預測結果與實測結果以及基於cost231經驗性模型和基於強力射線跟蹤確定性模型的預測結果進行了比較,結果表明了該模型的優越性。Ningbo sanshin machine ? electric & technology co., ltd is professional production cnc pipe bender, pipe end former, equipment duanmo japan - funded enterprises, the company is located at the entrance to a highway hangyong ningbo city haishu district technology industrial park, traffic facilities, 30 km from ningbo beilun port, airport 5 km
寧波三進機電科技有限公司是專業生產數控彎管機、端末加工機等設備的日資企業,公司位於杭甬高速公路出入口處的寧波市海曙區科技工業園區內,交通便利,距寧波北侖港30公里,機場5公里。With the development of vlsi ( very large scale integration ) and ulsi ( ultra large scale integration ), rtp ( rapid thermal process ), which consumes less time and less energy than classical thermal treatments, have been widely employed in semiconductor manufacturing. however, the most importance is that rtp is applied for defects engineering of silicon material. it is generally believed the rtf leads to the injection of additional vacancies into silicon wafer, and then a so - called magic denuded zone ( mdz ) in the near - surface region of cz silicon wafer was formed by controlling the vacancy distribution
隨著大規模集成電路( vlsi )和超大規模集成電路的發展,節省時間、節省能量、容易控制的快速熱退火工藝在半導體器件製造工藝中得到了廣泛的應用,並且在硅材料的缺陷工程中發揮了特殊的作用,人們通過高溫快速熱處理在矽片中引入空位,並控制空位的分佈,進而形成了具有較強內吸雜能力的潔凈區。This is also a feature of adder circuits and alus that permits these devices to “ look ahead ” to anticipate that all “ carries ” generated are available for addition
先行也是加法器電路和運算器的一種特性,它允許加法運算時對所有產生的進位預先處理,以利於提高加法運算的速度。With the development of microelectronic products ( integrated circuit, printed circuit board, etc ) directing to high density, thin separation and low defect ratio, its inspection requirement is higher on aspects of precision, efficiency, universal, and intelligence etc. therefore, this paper researched on the general key techniques in the field of microelectronic products vision inspection, covered the shortage of traditional inspection on aspects of fast and precision locating, image mosaic, and fine defect test, completed theory study on physical dimension and defect inspection of microelectronic products based on machine vision, developed the prototype and used lots of experiments to prove its correctness and feasibility
隨著微電子產品(集成電路晶元、印刷電路板等)向著高密度、細間距和低缺陷方向發展,對其檢測技術在精密、高效、通用和智能化等方面提出了更高要求。由此,本文對微電子產品視覺檢測中的關鍵技術進行研究,彌補了傳統檢測在精確快速定位、圖像全景組合和精細缺陷檢測等方面的不足,最終完成基於機器視覺的微電子產品外形尺寸和缺陷檢測的理論研究和樣機研製,並進行了大量實驗證明其正確性和可行性,力圖為我國自主創新的微電子產品視覺檢測技術提供理論和實際借鑒。To ensure the precision of distance measuring, the high - speed laser driving circuit and the detect - amplifying circuit constituted by two class high - speed operational amplifiers are used in auto adaptive cruise - control system, and the laser flying time is measured by a sixteen bit ' s binary counter, whose counting frequency is 100 megahertz
為保障測距精度,裝置採用高速激光器驅動電路和由兩級高速運算放大器構成的探測放大電路,並用一個計數脈沖頻率為100mhz的16位二進制計數器完成激光收發間隔時間的測量。The constitution, interface and control principle of main circuit, rectifier control module, inverter control module, generator ' s rotor speed and rotor position measuring module, information exchange module are discussed. specially, the methods of implementing signals level match in multi - voltage system, synchronizing with pc in parameters measurement and measuring rotor speed and rotor position with high precision are explained in detail
文中討論了主電路、整流器控制模塊、逆變器控制模塊、電機轉速和轉子位置測量模塊以及信息交換模塊的組成、介面方法和控制原理,詳細說明了系統中實現不同電壓等級間信號電平匹配的方法、系統與上位機進行同步參數測量的方法以及實現高精度電機轉速和轉子位置測量的方法。The straight line fitting on the data of the shadow edge was introduced, through which the precision of the measuring system was enhanced. three single chip processors were used simultaneously to acquire, handle, and calculate the data. the measuring speed was enhanced through predicting the edge position by hardware circuit
然後採用對陰影邊沿數字信號進行線性擬合的方法來提高測徑系統的測量精度;同時,測量系統採用了三個單片機并行通信聯合工作和預先利用硬體電路確定陰影邊沿位置的方法,提高了測量速度。We hold the view that, in one to two years ( late 2002 to 2003 ), the number of domestic wlan users will increase greatly and wlan will become the new hot spot in communication field ; the wlan terminal equipments will include laptop computer, table pc, pda and office devices such as printers and so on ; wlan card will become the necessary device for computer users ; wlan will be widely applied in high - grade resident areas and hotels
我們認為,在1 ~ 2年內( 2002年底~ 2003年) ,國內wlan的用戶數量將迅速增加, wlan將成為新的通信熱點; wlan的終端設備范圍將涵蓋筆記本電腦、臺式電腦、 pda等設備及印表機等辦公設備, wlan無線網卡將成為筆記本電腦一族的必備裝備, wlan網路也將進一步在高價位住宅區、酒店等場合廣泛應用。In addition, protection and display function units are added into this system. on the basis of study about working principle of previous indirect rotor - position detecting techniques, the fuzzy rules with the relation knowledge of - i - is studied in this paper as an approach for sensorless position angle estimation, and the simulation research for control performance and rotor position estimation are carried out. some experimental research on structure of srd controller is well made, and a fuzzy + pid speed controller with tms320f240 as core control unit is designed
研究了srd系統結構,對已有的主電路和驅動電路進行改進,完善了系統的各種保護和顯示等功能;在對已有的無位置傳感器轉子位置檢測原理進行研究的基礎之上,根據sr電機的磁鏈?電流?角度之間的關系,研究了採用模糊規則無位置傳感器檢測方案;對srd系統的控制器結構進行研究,設計採用tms320f240高速信號處理器的fuzzy + pid控制器,研究了fuzzy + pid控制器以及系統運行中的各種保護、顯示、報警等功能的設計思想和實現方法。Four - point probe measurement technique is one of the most extensive means for examining the resistivity in the semiconductor industry. with continuous progress, semiconductor industry develops at a very fast speed, the integration level of ic becomes higher and higher. presently, the ic production is entering into the age of ulsi, then testings are more and more important
四探針測試技術是半導體工業檢測電阻率時採用最為廣泛的測試手段之一。隨著時代的不斷進步,半導體產業飛速發展,以單晶矽片為襯底的集成電路集成度越來越高,目前正進入甚大規模集成電路( ulsi )時代,測試在整個集成電路生產過程中的地位越來越重要。2. with a view to the theory of dds, this paper introduces the realization of dds, which based on programmable device. it also discusses in detail some key techniques such as the design of high speed phase accumulator and ram
2 .從dds的原理出發,著重介紹了一種自行設計的基於可編程邏輯器件fpga的dds電路的實現方法,並對其高速相位累加器、 ram查找表等關鍵技術進行了詳細討論。With the development of computer network techniques and science technology, information industry and it ' s use have expanded greatly, enterprise ( for instance, government, finance, telegraphy. etc ) and personal user have depended on networks more and more larger, at the same time, such has brighten lots of information security in hidden trouble, network security is increasingly paid attention to and concerned about, it is critical problem how to protect security in networks and information system
隨著科技進步和計算機網路技術的飛速發展,信息產業及其應用得到了巨大發展,政府、金融、電信等企事業單位及個人用戶等對網路的依賴程度越來越高,同時也由此帶來了信息安全的隱患,如何保障網路與信息系統的安全已經成為人們高度重視的問題。The main contents are as follows : firstly, two typical architectures of ultrahigh speed adc are presented. moreover, the block diagram design of a 6 - bit 1gsample / s ( gsps ) adc is described. in the meantime, the building blocks and key ideas to improve the sampling rate are also described
首先,基於兩種典型的超高速a / d轉換器的特點,提出了一個解析度為6位,采樣速度可達到1gsps的模數轉換器系統結構,並對構成系統的各電路模塊及提高速度的關鍵技術進行了研究。And then, the different demands of position detecting on different light source and different distance are discussed. the different effects of position detecting on different circuit parameters and different center - filter frequencies are compared experimentally. after analyzing the factors that influence the speed and the precision of position detecting, the paper put forward the improving measures
本文對不同環境光照和不同測試距離下的位置測量要求進行了探討,對不同的電路匹配參數和不同濾波中心頻率的位置測量結果進行了實驗比較,認真分析了影響位置測量響應速度和精度的因素,提出了提高psd器件的抗雜光干擾能力和位置測量精度的措施。分享友人