接面電晶體 的英文怎麼說

中文拼音 [jiēmiàndiànjīng]
接面電晶體 英文
junction transistor
  • : Ⅰ動詞1 (靠近;接觸) come into contact with; come close to 2 (連接; 使連接) connect; join; put ...
  • : Ⅰ名詞1 (頭的前部; 臉) face 2 (物體的表面) surface; top 3 (外露的一層或正面) outside; the ri...
  • : 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...
  • : Ⅰ形容詞(光亮) brilliant; glittering Ⅱ名詞1. (水晶) quartz; (rock) crystal 2. (晶體) any crystalline substance
  • : 體構詞成分。
  • 電晶體 : bjt
  1. Secondly the major mechanisms of degeneration of pcss are caused by both the filamentary nature of the current in high - gain pcss damage to the chip of the switch and the charge domain reached the anticathode causes the erosion of metal interface

    開關退化的主要原因是:開關內的絲狀流對開關元的損傷;以及荷疇到達陽極時來不及放而產生的荷擁擠現象對開關觸表的損壞。
  2. By thorough analysis and synthetize this paper made a frame of the system of intelligent instrument and its hardware structure. as followed, this paper depicted design details of intelligent instrument " s hardware, it included the design of interface circuit, data commutations and digital logic of dsp, mcu, internet ' s chip and isp ' s apparatus etc., and have designed schematic map and circuit. so it accomplished the full design of hardware / software of the new type intelligent instrument

    本文具給出了新型智能儀器硬結構及實現,描述了智能儀器硬設計細節,包括數字信號處理器、單片機、 internet元、可編程數字/模擬器件等在新型智能儀器中的介路設計、數據通信設計和數字邏輯設計等,詳細地給出了設計原理圖和路圖;給出了新型智能儀器的軟設計細節,從而完成了新型智能儀器完整的軟硬設計。
  3. After that, the hardware circuit, especially some of the key parts, is investigated in detail. the following processes are also investigated in detail : empoldering the four fold - frequency subdivision 、 direction - judgment 、 counting and flip - latch of the data with vhdl ( very high speed integrated circuit hardware description language ) ; empoldering the serial interface and the data collection software in pc with borland c + + builder

    下來詳細介紹了使用vhdl語言開發fpga元的細分、辨向、計數、鎖存以及串列傳輸處理等全部功能;用borlandc + + builder開發了pc機上的串列介、數據採集軟;設計並製作了fpga元及其外圍路的路板。
  4. At the same time because of the insolubility of calcium phosphate, topical extortionate concentration of calcium ions and phosphate ions, the vary of ph value and the effect of osteoblasts and proteins in oregano - bone matrix, the calcium ions and phosphate ions gave birth to crystal nucleus and came into being osteo - salt deposition, furthermore to form mineralized bone. finally, at the host osseous lamella far away the implanting area we found some material granules

    藉助于掃描鏡等測試手段,實驗發現隨著植入時間的延長,材料區域的積不斷縮小,顆粒間的頸部連斷開,顆粒的結構和形貌發生了較大的變化,且材料的內部出現了生命元素碳和硫等。
  5. Through analysising the characteristics of the power system with floating neutral point deeply, the paper puts forward a new plan of single - phase to ground fault line selection on the base of s ' s signal injecton method and gives the hardware and software design. in this design, the high speed sampling and data processing is carried out through using dsp processor ; the large electrice current is drived through the application of a high - performance audio power amplifier and transformer ; the communication between host computer and detectors is realized through rs485 bus technology ; the difference multilevel frequency - selected amplifier is designed and the feeble signal of space is sampled on the base of the theory of magnetic induction ; the interface between dsp and exterior chip and rs485 interface logical is designed through using fpga ; the using of lcd module and keyboard interfacing chip makes the interface between human and machine ; the programme of host computer and detectors is designed through using blocking design method

    在本設計中,採用高速的dsp處理器,實現了對故障特徵信息的高速採集與處理;採用大功率的功放元與變壓器配合的方法,實現了大流信號的驅動輸出;採用485總線技術,組建了裝置主機與多探測器之間的主從式通訊網路,實現了多干擾條件下裝置主機與多探測器的可靠通訊;設計了差分式多級選頻放大路,採用磁感應的方法實現了對空間微弱信號的收;利用fpga技術,實現了控制器與多外設的介及數字信號的串並轉換;採用了先進的lcd液顯示模塊及鍵盤介元,設計了人機信息交互的介;採用了模塊化的軟設計方法,開發了裝置主機及探測器的軟程序。
  6. Abstract : there are offered many ways how to improve work of a spark plug. but one of the m ost important problems has not been solved yet. this is a thermal mode operation of a spark plug. the ideal spark plug should be instantly heated at the moment of occurrence of a spark and instantly cooled down in expectation of the foll owing electrical pulse. thus it balances between preservation of heat for self ? c leaning from scale and its removal in avoidance self ? ignition. in this article a uthor managed for this time to offer a spark plug with capability “ self ? regula tion ” of heat flux removed from a zone of ignition. essence of the offer is a t ip , which is transparent for heat flux. it is produced from single crystal of sap phire

    文摘:在如何提高火花塞的工作質量方有多種方法,但是其中最重要的一個問題還沒有得到解決,那就是火花塞工作的熱學模型問題.理想的火花塞應該能在點火的瞬間被立刻加熱,並且在下來的脈沖過程中迅速冷卻,由此在熱量的存儲與散發之間取得平衡,以避免自點火.本文力圖展示一種具有自動調節源於點火區域熱流能力的火花塞,其技術的關鍵是頂部絕緣材料,它是由藍寶石單製作,而非傳統的氧化鋁陶瓷
  7. 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和軟,開發了上位機監控軟,其中所作的具工作包括: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阻器法;主控元的選擇,我們選用了高集成度的混合信號系統級元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位模數轉換元ad7705在系統中的應用,我們完成了它與單片機的介設計及程序編制任務;精確時鐘元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的連和在軟中對時序的模擬,該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模擬信號流環的輸出路來提供系統監測,該部分的實現是通過採用ad421元來完成的,本設計中完成了ad421與單片機的spi介任務,協調了它與ad7705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;系統設計方還包括報警路設計、操作鍵盤設計、源監控路設計、壓基準路的設計。
  8. Research on surface and grain boundary passivation mechanism obtained effects of surface recombination on crystalline silicon solar cell performance and the theoretical expression of grain boundary recombination velocity. the limit ratio of short - circuit current increment for anti - reflection coating utilization on solar cells was obtained. the crystalline silicon solar cell spectral response, contact resistance and minority carrier lifetime measurement systems were established

    鈍化機理研究獲得了表復合對不同表摻雜濃度硅太陽池性能的影響、表和界復合速度的理論表達式;研究得到了減反射膜對太陽池短路流增量比的極限;建立了太陽池光譜響應、柵線阻和少子壽命等測試系統。
  9. Studies on metal - semiconductor contacts of 6h - sic and some interrelated processes condensed - state physics postgraduate : wu ruibin director : gong min the manufacturing processes as well as electrical and thermal characters of 6h - sic ohmic contacts have been studied in this work. in addition, we fabricated au and ni schottky barrier diodes ( sbds ) on silicon surface of n - type 6h - sic

    本文討論了n型6h - sic歐姆觸的制備工藝及其基本學及熱學特性,並在此基礎上採用金屬au及ni在n型6h - sic硅( 0001向)上制備了具有一定特性的肖特基勢壘二極
  10. The maximal power outputs of 37. 0 mw / cm2 and 30. 0 mw / cm2 for the p - and n - type laminated materials respectively at the temperature difference 490 have been experimentally obtained, which are about 2. 5 and 3. 0 times those of - fesi2. chemical analyses show that the interface failure between the bridge alloy and the semiconductor bi2te3 results mainly from the eutectic mixtures with low melting point and brittle compounds formed during welding and long time annealing at 190. it is found that the electrical properties of a laminated structure are mainly controlled by the wettability of the bridge alloy on the semiconductor surface

    發現: 1 )疊層材料具有明顯優于均質材料的熱性能,在490溫差下, p -型和n -型疊層材料的最大輸出功率分別達到37 . 0和30 . 0 ( mw / cm ~ 2 ) ,是同類型均質- fesi _ 2的2 . 5和3倍; 2 )在焊過程和190長時間退火處理過程中,焊過渡層合金和基半導(特別是bi _ 2te _ 3 )之間存在明顯的元素相互擴散,從而在過渡層中形成一些低熔點共和脆性化合物,這是導致疊層材料破壞的主要原因; 3 )焊過渡層合金與半導之間的潤濕性是影響界性能的主要因素。
  11. One of the most key technologies of preparing cd1 - xznxte detector is to make ohmic contact film electrode on cd1 - xznxte crystal ' s surface, and the main technology usually used is evaporation, but the cohesion of evaporated film is n ' t very firm

    制備cdznte探測器最關鍵的技術之一就是在cdznte表制備出歐姆觸薄膜極。關于在cd _ ( 1 - x ) zn _ xte制備極用導薄膜,大都是採用蒸發鍍膜技術,膜層與cdznte結合不很牢固。
  12. Not only the top surfaces of emitter, base and collector but also the sidewalls of emitter and base are completely passivated by the proposed full sulfur treatment

    最後,在本文中,將提供一個全性表硫化披覆方式之異質雙極性
  13. Mesfet digital logic families : performance criteria for logic. logic families : normally - on logic ( fl, bfl, sdfl ) ; normally - off logic ( dcfl ) ; comparison offamilies ; examples of fabrication sequences ; performance data ; state - of - the - art commercially

    10金屬-半導場效數位邏輯家族:邏輯效能標準。邏輯家族:常開邏輯( fl , bfl , sdfl ) ,常關邏輯( dcfl ) ,家族比較,製程步驟?例,效能數據,已商業化之科技產品。
  14. There are mang immobilization methods we can use directed or indirected. the use of sam in various fields of research is rapidly growing, a interesting work is based on the strong absorption of disulfides ( r - s - s - r ), sulfides ( r - s - r ) or thiols ( r - sh ) on the gold surface. while integrating with the new improving in biomolecule immobilization, this thesis presents a theoretical and applied studies of several new piezoelectric immunosensors based on the au - s sams

    通常將生物分子固定於石英極表或石英的惰性載塗層主要有直固定法和間固定法,包括有硅烷化連法,聚合物膜連法,非特異性吸附蛋白間固定法, lb膜技術,生物素-親和素系( bas )法以及自組裝單分子層( sams )技術等等。
  15. The task in the paper comprises two parts. the software design procedure works as follow, program the drivers for module on pc with cvi, generate the corresponding ddl and then edit the test serial and invoke the ddl by designing soft panel with vc + + 6. 0. thus facilitate users to control module to conduct high speed data test. the hardware design procedure works as follow, design vxi message based interface circuit and plesio - fdc circuit with fast data transport function on xc2vp30, a virtex - ii pro series fpga chip designed by xilinx company which integrates power - pc processor

    筆者負責的工作包括軟設計和硬設計兩部分:軟設計是用cvi工具編寫模塊在pc機上的驅動程序,生成動態連庫,再用visualc + + 6 . 0設計軟板,實現測試矢量的編輯和動態連庫的調用,讓用戶很方便地控制模塊進行高速數據測試;硬設計是在xilinx公司的一片集成了power - pc處理器的virtex - iipro系列fpga元xc2vp30上完成vxi總線的消息基介路設計和具有快速數據傳送功能的準fdc路[ 1 ] [ 2 ]設計。
  16. For the image acquisition of optical scan mode, normally, ccd image sensor is used to capture image, but in our system, due to the system request of micromation and high integration, cmos image sensor is adopted as the image collection device, and then the thesis gives a interface circuit between the chip and dsp and a control solution of image collection ; toward the information storage in our solution, dsp is directly linked to usb host chip and it is the dsp that accomplishes the processing of usb protocol and interface control so as to reduce the cost, minimize product cubage and consequently meet the requirement of system micromation ; at the same time, the thesis probes preliminarily into usb otg ( on - the - go ) technology, which offers an approach between embedded machines including pda, mobile phone, printer, digital camera and so on ; in addition, some attempts on the other application area with tms320vc5402 which was commonly used to voice processing and static image processing are done, for example, to arrange the chip to control lcd module directly

    在圖像的光掃描輸入上,傳統方案大部分採用ccd型圖像傳感器,而在本方案中,根據系統微型化、高集成的特點,使用了cmos圖像傳感器作為攝像器件,並且設計了該元與dsp的一種介路以及圖像採集控制方案;在信息存儲上,本方案採用dsp直與usbhost元連,由dsp處理usb協議和介信息,從而降低了系統成本、縮小了產品積,滿足了系統微型化的要求;同時本論文也對usb - otg技術進行了初步探討,利用此項技術,不再需要計算機作為主機,就能實現在pda 、移動話、印表機、數碼相機等嵌入式應用之間直互聯通信;另外也對廣泛用於語音處理和靜態圖像處理的tms320vc5402其它方的應用進行了嘗試,比如直控制液顯示器等。
  17. It is not only the satisfactory substrate used for the epitaxy growth of infrared detector material hgcdte, but also attractive candidates for the manufacture of high quality x - ray or y - ray detectors, photoelectronic modulator, solar cell, and laser windows etc. no matter what the crystal is used as detectors or epitaxy substrate, it is of vital importanteto obtain high quality cdznte crystals with perfect surface

    它不僅是生長紅外探測器材料hgcdte最理想的外延襯底,而且還被廣泛用於制備高性能x射線或射線探測器、光調制器、太陽能池和激光窗口等。獲得高性能、高質量的czt是至關重要的。無論是作探測器還是作外延襯底等都要求它的表質量要非常高,因為表質量會直影響到器件的性能。
  18. A silicon self - aligned technology was achieved by using a smart power integrated technology to get high power of the circuit. vertical pnp transistor whose base is epitaxy layer was used as output. the collector of the vertical pnp transistor was set on the back of the chip with low resistance p + substrate as ohm contact

    在工藝中,採用了smart功率集成技術實現路的大功率,基區是外延層的縱向pnp管作為輸出,將集極置於元背,採用低阻率p ~ +襯底作為歐姆觸。
  19. And software method can resolve d channel ' s work for its less data communication ; 3 ) cpu 80c152 is synchronized with mc145572 by a simple synchronous circuit, avoiding the complex fpga interface circuit ; 4 ) data transmission use dma, which reduces the delay of data transmission and cpu occupying ; 5 ) 8bit software look - up table method can achieve 16bit crc quickly, which reduces the resource of both hardware and software

    對通信數據量相對小的d通道,採用軟實現裝幀與解幀。第三,採用結構簡單的外部同步時鐘路實現80c152和元mc145572的同步傳輸,巧妙地避開了復雜的fpga介路。第四,利用dma技術完成數據快速收發,降低了數據傳輸時延及cpu佔用率。
  20. Through analyzing the results, we expatiate the feasibility of using dsp to implement digital signature. in hardware design, tms320c50 chip is chosen as the core processor and electrical periphery circuit is designed on basis of it. the function and connection information of digital signature electric circle is presented in detail in this report. at last, the validation software of signature is accomplished in computer. we run the whole system to get the result of digital signature and its validation, thus verify the correctness of the signature and the validity in identifying attack

    本次設計在硬上採用的核心處理元為tms320c50 ,在熟悉此元的內部結構的基礎上,設計了處理器元的外圍功能模塊輔助路,製作了簽名路板和硬板,本文具給出了數字簽名路板和介路板各部分路塊的功能和線情況。最後,在計算機中編寫了簽名驗證軟,並給出運行整個系統得到的對數據「簽名」和對「簽名驗證」的結果,對數字簽名結果的正確性和識別攻擊的有效性進行了驗證。
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