電微時計 的英文怎麼說
中文拼音 [diànwéishíjì]
電微時計
英文
electric circuit-
The new system consists of a single - chip computer system ( at89c51 + psd311 ) and alow power consumed analyzer by applying a new adc chip ads774, and a dead - time correcting circuit is designed to correct the collecting time
本系統由單片微機系統（ at89c51 + psd311 ）組成多道緩存，由低功耗模數轉換器組成分析器，與微型計算機通過列印并行介面實現數據通訊，並含有死時間校正電路。The noise of the micromotor is not only considered as one of reflections of environment inside of automobiles but also reflects the design technics and fitting level of the motors
微電機噪聲是作為車內環境污染的噪聲源指標，同時也是電機設計、工藝和裝配水平的綜合反映。The research partners include automotive and aerospace companies such as jaguar cars and bae systems formerly british aerospace, as well as two uk companies with extensive microwave experience plus birmingham universitys department of electronic, electrical and computer engineering
系統（前英國航空公司） ，以及兩個具有廣博微波技術經驗的英國公司，同時，伯明翰大學的電氣與計算機工程，電子系也參與了研發工作。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。We have investigated transport properties of electrons in magnetic quantum structures under an applied constant electric field. the transmission coefficient and current density have been calculated for electron tunneling through structures consisting of identical magnetic barriers and magnetic wells and structures consisting of unidentical magnetic barriers and magnetic wells. it is shown that the transmission coefficient of electrons in a wider nonresonance energy region is enhanced under an applied electric field. the resonance is suppressed for electron tunneling through double - barrier magnetic ( dbm ) structures arranged with identical magnetic barriers and magnetic wells. incomplete resonance at zero bias is changed to complete resonance at proper bias for electron tunneling through dbm structures arranged with different magnetic barriers and magnetic wells. the results also indicate that there exist negative conductivity and noticeable size effect in dbm structures
對磁量子結構中電子在外加恆定電場下的輸運性質進行了研究.分別計算了電子隧穿相同磁壘磁阱和不同磁壘磁阱構成的兩種磁量子結構的傳輸概率和電流密度.計算結果表明，在相當寬廣的非共振電子入射能區，外加電場下電子的傳輸概率比無電場時增加.對于電子隧穿相同磁壘磁阱構成的雙磁壘結構，共振減弱；對于電子隧穿不同磁壘磁阱構成的雙磁壘結構，無電場作用時的非完全共振在適當的偏置電壓下轉化為完全共振，這時的電子可實現理想的共振隧穿.研究同時表明，磁量子結構中存在著顯著的量子尺寸效應和負微分電導By means of the theoretical analysis of the micromachined vibratory rate gyroscope, we get following conclusions : the microgyroscope can be driven by tangent electrostatic force produced by fence structure electrodes, and the normal electrostatic force can be neglected for the influence of the device property ; the parasitical capacitance and fringing effect can ’ t be neglected for the calculating of the detection capacitance ; the coefficient of damping force is comparatively little when the air damping in the driving mode and the sensing mode of the device is the couette flow damping
主要內容如下: 1 .分析了微機械陀螺的運動特性、靜電驅動特性和在大氣下的阻尼特性，分析結果表明，可以運用切向靜電力驅動質量塊振動，法向靜電力對器件特性的影響可以忽略;在計算微結構電容時，電容的邊緣效應和寄生電容不可忽略;在器件所受阻尼主要為庫埃特流阻尼的情況下，阻尼力系數較小。The paper designs a type of circuit which combines gps receiver with computer by means of the icl232 integration chip. it achieves deliver and receiver at the same time. it gives receiver program chart
採用icl232單電源集成電路晶元設計gps接收機與微型計算機介面電路，可以同時實現發送和接收信號的電平轉換，並給出了接收的流程圖。A neural network model for a device / circuit can be developed by learning and abstracting from measured - simulated microwave data, through a process called training. once be trained, the neural network model can be used during microwave design to provide instant answers to any pre - assigned task
通過對射頻微波電路測量或模擬，可得到微波電路的輸入和輸出數據，利用該數據可以對神經網路進行訓練，而神經網路一旦訓練成功，就能夠瞬時地對在微波電路設計所學習的任務提供準確答案。In the model, johnson - cook strength is combined with gurson - tvergaard - needleman yield criteria, and random distribution of microvoids is used. results show that quasi - periodic axial fracture will appear, which obstructs the mirror current of the armature
在給定微孔洞的初始擾動時，計算結果解釋了鋁電樞表面將要形成的不穩定性，它導致了電樞外表面出現周期性的軸向裂紋，阻礙了鏡像電流，使fcg損耗增加。This adds another degree of freedom and complexity to the design process as well as area and speed
當工藝發展到深亞微米時，功耗對電路的影響使它成為了集成電路設計中的第三維目標。With the coming of vlsfs sub - micron era, low - power technique has been a growing demand in vlsi design
隨著集成電路進入深亞微米時代，功耗問題已成為超大規模集成電路設計考慮的重要因素。Abstract : a microprocessor - based adaptive voltage instantaneous trip protection is proposed and analysed. the voltage setting can be automatically online calculated and determined according to current operation condition of power system and the protection zone is enlarged. as a result, the adaptive voltage instantaneous trip protection is more superior than the same conventional ones
文摘:為了克服傳統電壓速斷保護的動作性能受運行方式變化影響的缺點，提出了利用在線實時計算系統電源側綜合阻抗的方法實現微機式自適應電壓速斷保護，分析結果表明它比傳統的電壓速斷保護有著非常明顯的優越性。System functions of gsmb based on " godson " cpu was programmed by the discussion of " godson " cpu micro - system structure finalization and by the introduction of " godson " cpu performance requirements. this essay also specified on gsmb board level system structure, bios level solving and selection of important chips. moreover, problems related to high speed circuit design such as mensurability, pcb layout signal integrity, electromagnetic coexist were researched
通過對「龍芯1號」 （ godson ） cpu微體系結構定型的討論和關于「龍芯1號」 cpu所需達到的的性能指標的介紹，規劃了基於「龍芯1號」 cpu的高速服務器主板gsmb的系統功能，並敘述了根據系統功能所設計的gsmb板級系統結構、 bios級解決方案和重要晶元的選型；另外還研究了高速電路設計所涉及的如可測試性、信號完整性、電磁兼容性等一系列問題，並依據研究構建了基於ibis的軟體模擬模型，同時藉助eda模擬分析工具對關鍵線網與關鍵模塊進行了板級模擬。Large signal model of gaas mesfet is built and, in the light of advanced pspice circuit simulation programme, the circuit transient and dc operation analyse and speed performances are calculated. and also, the inserted loss and isolation are optimized by microwave circuit software touchstn of eesof company
同時，建立了gaasmesfet器件大信號模型，用先進的pspice電路模擬程序對所設計的電路進行瞬態分析和直流工作點分析，計算電路的速度性能；用eesof公司的touchstn微波電路設計軟體，進行開關的插入損耗和隔離度的優化設計。Civil air defense alarm system was a system to dispense antiaircraft alarm sig - nal, hand hostile air attack informational communication to urbanite at wartime. it is a particular informational communication system of the civil air defense depart - ment, and can not be taken place. at the development trend of digitaliza - tion, unitization, integration of civil air defense communication, the civil air defense alarm system is developing too, for adaptation to the require of both future war and peaceful dual, and enhancing civil air defense communication system ' s directing automation. in recent years, development of different kinds of communication technology infuses new clearly energy into communication, especially spread spectrum communication, because of its strongly interference - free feature, invisibility best, realizable code division multiple access and antimultipath wane and so on merit, gets extensive use at wireless region ; the corresponding spread spectrum chips emerge as the times and get boom, which provides advantag e to realization of the circuit of spread spectrum communication. at the same time, in company with the advance of electronics level, the single chip microcomputer has a great development, world renowned chip manufacturer pushout respective products one after another, the kinds of which are too many to statiste
在人防通信的數字化、一體化、綜合化必然的發展趨勢下，人防警報系統也不斷發展，以適應未來戰爭和和平時期的雙重需要，提高人防通信系統指揮自動化。近年來，各種通信技術的發展給通信注入了活力，擴頻通信更因其抗干擾能力強、隱蔽性好、可實現碼分多址和抗多徑衰落等優點在無線領域得到了廣泛應用；其相應擴頻處理晶元應運而生並得到迅速發展，這為擴頻通信的電路實現提供便利。同時隨著微電子工藝水平的提高，單片微型計算機有了飛躍發展，世界上著名的集成電路晶元製造商紛紛推出各自的產品，單片機型號之多，已達到難以統計的地步。It is very important to the electromagnetic simulations. this paper base on the theory and method of electromagnetic calculation and fdtd, associate with the particle simulation technology, develop an algorithm to resolve the problem of the eigenmode analysis of the cold - cavity in practice
本文從分析電磁場計算的基本原理和方法出發，立足於時域有限差分法，結合計算機粒子模擬技術和數值計算原理，開發出一種能夠分析計算高功率微波器件冷腔諧振頻率以及本徵模式的演算法。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。At the same time the clock chip pcf8563 and serial eeprom chip csi24c01 with reset and wdt circuit of i2c bus are used hi the system. they have not only provided the non - volatility data storage area, the supervision ability of power supply and mcu and the rtc, and its i2c bus structure has been simplified the circuit design
同時在系統中還使用了護c總線結構的時鐘晶元pcf8563和內置reset 、 wdt電路的串列eeprom晶元csi24coi ，它們不僅提供了電源和微控制器的監控功能、不揮發性的數據存儲區、實時時鐘，而且其護c總線結構簡化了電路設計。This smps is applied in execrable circumstances, so when designing the hardware circuit, emc problem is also discussed, which insures the smps system working stability. system software design includes microcontroller application program, data acquisition program, ad7705 driver program, pid arithmetic, embedded realtime os ucos transplant, and other application program
由於本開關電源系統應用環境惡劣，在硬體電路設計時，分析了電磁兼容問題，從硬體設計上保證了系統工作穩定性。軟體設計包括微控制器應用程序、數據採集程序， ad7705驅動程序、 pid演算法程序、實時操作系統ucos移植步驟、和其他上層應用程序。Along with the development of manufacture technology of vlsi, ic design emphasizes reusable design and short design cycle more and more. consequently the concept of ip ( intellectual property ) grows up, the development of many embedded modules make the design of ic simpler. mpu ip core is the typical one in these modules
在集成電路製造技術進步的同時，集成電路設計也越來越強調設計的可重用性和短設計周期， ip （ intellectualproperty ）的概念應運而生，各種嵌入式功能模塊的開發使集成電路的設計不斷簡化，而其中最典型的當屬微處理器內核。分享友人