time converter 中文意思是什麼
time converter
解釋
時間變換器-
The research status of the world diesel exhaust aftertreatment technology is summarized systemicallyo at the same time, the development status and problems about oxygenation catalysis converter and particulate filter are analyzed on the basis of mentioned informations, we bring up a diesel exhaust cleanse system, that adopts the technique course of catalysis conversion combining particulate collection and regeneration the system collects exhaust particulate by means of efficacious filtering material it can oxidize ho co and macromolecule solvable organic via catalyst and diesel oil additive enhanced temperature will partly oxidize collected particulate and ultimately achieve the aim of exhaust reduction, after processing system frame design and trial matching, it ' s detected that the system can surely cleanse gas exhaust and particulate in addition, gas - ejected combustion - supporting regeneration for diesel particulate filter is also researched, we have rudimentarily designed the software and hardware of the g as - ejected combustion - supporting system having processed a series of trials, we discover the rules of the system credibly working these rules demonstrate the right direction for researching gas - ejected combustion - supporting regeneration technology
本文系統地介紹了國內外柴油機排氣后處理技術的研究現狀，分析了氧化催化轉化器和微粒捕集器的發展現狀及存在的問題，以此為基礎，提出了一種柴油機排氣凈化系統，該系統採用催化轉化與微粒捕集及再生相結合的技術路線，通過過濾材料的有效過濾，將排氣中的微粒進行收集，藉助于催化劑和柴油添加劑使排氣中hc 、 co及高分子可溶性有機物氧化，產生的高溫使得收集到的微粒部分氧化，從而達到降低排放的效果。通過系統結構設計和試驗匹配，實現了對氣體排放物和微粒的凈化。同時，論文中還進行了柴油機微粒捕集器噴氣助燃再生的研究，初步設計了噴氣助燃系統，進行了控制系統軟、硬體的開發，通過正交試驗，摸索出了噴氣助燃系統可靠工作的一般規律，為噴氣助燃再生技術的開發提供了方向。 -
Analyzing resonant dc dc converter in state without dead time
變換器的無死區分析 -
In the next place, by studying the change of the resonant frequency of the whole system, this paper designs the circuit to track the resonant frequency of the system by cd4046 mainly. at the same time, in order to improve the efficiency and get better dynamic capability of the converter, we choose pll and fuzzy control after comparing the pll circuit, fuzzy circuit and pll ? fuzzy control circuit. in the end, this paper brings forward the control blue print to realize the drive control circuit of the high frequency converter, using the dsp chip as the key part to realize four routes of pwm drive pulses with dead band of the control system
其次，通過對整個系統諧振頻率變化的分析和研究，設計了以鎖相環cd4046為核心的鎖相環控制電路，同時，在綜合比較鎖相環控制、模糊控制以及模糊控制和鎖相環復合控制三種控制演算法的基礎上，進行了系統模擬，得出採用復合控制可使跟蹤電路既具有鎖相環路較好的穩態性能，又擁有模糊控制較好的動態性能，系統魯棒性能好，同時也提高了逆變器的效率。 -
This text summarises several control forms of gushing out oil pump test platform simply, and mainly proposes analog and digital control schemes of close ring adjusting speed, at the same time, gives the principles and implementation methods used in parameters control and measuring, this text introduces the asynchronous electromotor " s control process, in which, fuzzy control arithmetic is used, and the control commands are passed on by means of communication between mcu and frequency converter. there are two parts in this system. one is superior computer that is ordinary pc, the other is hypogynous at89c52. the functions of superior pc are control and display information through screen, and the functions of ats9c52 includes control, collecting, display, treatment, uploading of all parameters
詳細介紹了應用模糊控制演算法，以變頻器通訊方式進行異步電機調速的控制過程。系統由上位機和下位機兩部分組成。上位機為普通pc機，主要實現系統控制、數據顯示等功能，另外還有數據庫瀏覽、數據列印等功能；下位機以at89c52為核心，負責所有參數的採集、處理、顯示、上傳、控制等。 -
The problem of obtaining an adequate intensity of illumination for photography at extremely short exposure time is reduced with the image converter camera…
要在極短的爆光時間內獲得足夠的攝影照明光強的問題，可採用彎象管攝影機來解決… -
A 3rd generation converter samples the signal 44, 100 times per second - with a frequency of 44. 1 khz kilohertz. this time resolution exceedingly determines the sound, which we finally perceive : a low resolution sampling or sample rate results in a more muffled sound because quickly oscillating sound waves i. e. high tone are not acquired correctly
讀取頻率，也就是聲音的采樣頻率，的高低直接影響到我們最後所聽到的聲音，如果采樣頻率不夠高，聽到的聲音會感覺有點糊糊的暗暗的，因為沒有辦法讀取到某些振蕩頻率較高的聲波，也就是高音的部分。 -
The analog signals are regulated to satisfy the system and analog - to - digital converter ( adc ) ; dsp is the core part and is connected with adcs, a controller of ethernet, a rs - 485 bus transceiver, a can bus transceiver and a clock. the real - time data is disposed by dsp and is transferred to the upper computer when the alarm is happened
模擬信號調理模塊對輸入的信號進行調理，以達到系統和模數轉換器（ adc ）采樣的要求; dsp作為系統的核心部件，外擴了adc 、以太網控制器、 rs - 485總線收發器、 can總線收發器和時鐘晶元， dsp對實時數據進行處理，當報警發生時將實時數據通過以太網上傳給上位機。 -
Secondly, the central processing unit ( cpu ) of the tms320c2812 、 peripheral interrupts 、 analog - to - digital converter ( adc ) and event manager ( ev ) modual are reseached. a real - time data operation system based on dsp platform is designed. single and multi - channel real - time data acquisition experiment. is achieved
二、研究了tms320f2812dsp的cpu晶元結構、中斷系統、 ad模塊和ev模塊以及dsp集成開發環境ccs2 . 0 ，利用dec2812 ，設計並實現了實時數據採集系統，完成了單通道以及多通道的數據採集實驗。 -
( 5 ) " electronic controlled bypassing air + three - way catalytic converter " system used for carburetor petrol engine which " is capable of setting up working condition for three - way catalytic converter and can solve the contradiction between emission control ( controlling hc, co, nox at same time ) and power, torque, fuel consumption having been put forward
（ 5 ）建立了針對化油器式車輛的「電控補氣+三效催化轉化器」系統，通過採用雙迴路電控補氣可以為三效催化轉化器建立良好的工作條件，較好的解決了化油器式汽油機動力性、排放（同時降低hc 、 co和nox ）之間的矛盾。 -
( 8 ) by studying match between the electronic system and catalytic converter on the base of electronic controlled bypassing air system, conclusions having been gotten as follows : higher conversion efficiency of emission have gotten when a / f fluctuates at definite scope and frequency, by controlling the comparing voltage of 02 sensor, the working scope of catalytic converter can be controlled and the matching that can fulfill the high efficiency of hc, co, nox at same time has been optimized
（ 8 ）進行基於所開發的電控補氣系統上的催化器與電控系統的匹配研究，當控制系統調節空燃比在一定范圍按照一定頻率進行波動時，可以提高催化轉化器的轉化效率；通過控制氧傳感器的比較電壓，可以控制催化轉化器的工作窗口，實現排放污染物中， hc 、 co 、 nox轉化的最優匹配。 -
So, how to consider about these factors and design out suitable dc / dc converter becomes very important. at the same time, it helps a lot to bring the fuel cell to market use
因此，如何綜合考慮這些因素，合理設計符合要求的dc / dc變換器就顯得尤為重要，同時這對于燃料電池的市場化推廣應用也具有極其重要的意義。 -
On the basis of familiar with can bus and gsm communication, considering hev ( hybrid electric vehicle ) battery administrative system ' s demand for the host pc monitoring system, i have designed can - rs232 converter gateway to realize transmission the real - time data from can node to rs232 serial port, which is carried out by the project of at89c52 mcu + sja1000 can controller + 82c250 can controller interface. host monitoring software has accomplished real - time datas display, storage, historical datas graph analysis and storage fashion change from access to excel, at the same time, realized important datas transmission remotely with tc35 short message module. system software programs in assembly and vb
Can - rs232轉換網關採用at89c52微處理器+ sja1000can控制器+ pca82c250can控制器介面實現對can總線節點通訊的監聽，並將其轉換成rs232串口電平發送到pc機串口，同時用siemens公司的tc35模塊和at指令實現現場採集系統重要數據和錯誤信息的短消息通訊。在上位pc機監控系統中，主要完成的是對串口設置的選擇控制、現場採集數據的實時刷新顯示、歷史數據的圖表分析及數據的access數據庫存儲和excel電子表格的轉換。系統軟體採用匯編語言和vb實現。 -
The soft switching, phase - shifted pwm and bi - directional dc - dc converter hang together, depress circuit switching loss and noise effectively, which provide condition to increase switch frequency, efficiency and reduce size and weight for the converter ; at the same time, it is proved the converter can achieve zvs in larger load variation, and the converter has the virtue of structure compact, voltage and current stress small such as ordinary hard switch converter
該變換器把軟開關技術和相移控制pwm技術以及雙向dc - dc變換器技術有機結合在一起，有效地降低了電路的開關損耗和開關噪聲，為變換器裝置提高開關頻率、效率以及降低尺寸及重量提供了良好的條件;同時，能拓寬零電壓開關的范圍，使變換器在較寬的負載變化范圍內都能實現軟開關。 -
With the development of the converter drive technology, the requirement for the variable frequency drive are becoming more and more strict especially for the modern converter drive employing fast switching semiconductor igbt ， though it has high pulse frequency and refreshing time of only nanoseconds, it generates emf that has adverse effect on the environment
隨著頻率控制傳動技術的發展，對頻率變速傳動系統的要求越來越高，尤其是對採用快速切換的igbt半導體現代變頻技術，盡管脈沖頻率高或更斷時間僅毫微秒內，但它們會對周圍環境產生電磁場。 -
Being demonstrated by production data, the benefits of both economical and social have been achieved by more stable melting process, decrease of bof reblow rate, less consumption of raw material, longer converter campaign, shorter melting time, better working conditions with computerized automatic steel making process on 120 - ton bof at tonggang
摘要實際生產數據說明，通鋼120t轉爐實現副槍和動、靜態模型控制下的自動用煉鋼工藝后，吹煉過程穩定，補吹爐數少，鋼鐵料、合金消耗低，爐齡提高，轉爐冶煉周期縮短，工作環境改善，使轉爐副槍系統的應用取得了很好的經濟效益和社會效益。 -
Peripheral equipment time control of frequency converter
周邊設備：變頻器調速 -
There is difference frequency measurement requirement for every part of pid regulating, difference between dynamic quality and static quality in response time and accuracy. according to these, it use the interrupt functions and high - speed counter of the simens s7 - 200 plc cpu226 basic unit and some peripheral circuit to measure frequency ; in software designed, the procedure frame of hydraulic - turbine governor and disperse process of parallel pid are analyzed, an improved pid algorithm is adopted to realize a pid regulation mode with variable structure and parameters ; the mechanical liquid - pressure system of the hydraulic - turbine governor is with electric - hydraulic converter unit of step motor. according to the drive character of five phase of response step motor, a variable frequency regulated voltage driver unit is designed in order to realize interface between plc and driver of step motor
本文利用s7 - 200plc自身的特點設計了頻率測量單元，根據pid調節各個環節的特點，以及調速器動態特性、靜態特性對頻率測量的實時性和精度要求的不同，利用s7 - 200plc基本單元中內置的高速計數器以及相應的外圍放大整形、分頻電路，實現了水輪發電機組頻率的測量；在軟體上，對微機調速器的整個程序框架、並聯pid的離散化過程進行了分析，選用改進的pid演算法實現了變參數、變結構的pid調節模式；調速器的機械液壓隨動系統具有步進電機電液轉換元件，採用五相反應式步進電機，根據其驅動特性設計了變頻調壓驅動器，實現plc與步進電機驅動器之間數字介面。 -
This paper makes a detailed analysis as to the fundamental circuits and fundamental principles of boost dc - dc converter, spwm inverter and ac voltage adjustment circuit in the power supply. at the same time, the paper introduces the choice of the parameters and the design of control
本文分別對逆變電源中的boost升壓斬波電路、 spwm逆變電路以及斬控式交流調壓電路從基本拓撲結構和工作原理上進行了詳盡闡述，同時介紹了各功能模塊的參數選取和控制設計。 -
Considering the above control strategies which make the controller can not be real - time processing because its workload has increased, control circuits of the main switches based on eprom are designed, which can implement control scheme of firing angles and phase voltage. furthermore, it avoids power converter saturation in the process of commutation
上述控制策略的引入造成控制器運算量增大、難以在線實時控制，又設計了基於eprom的主開關器件通斷控制電路，實現了開關磁阻電動機開通關斷角控制及對施加於相繞組上電壓的優化控制，同時避免了換相時可能引起的功率變換器飽和現象。 -
Calibration of scanning time and scanning velocity for high speed image - converter camera
高速變像管相機掃描時間和掃描速度的標定技術
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