放電穩定度 的英文怎麼說
中文拼音 [fàngdiànwěndìngdù]
放電穩定度
英文
discharge stability- 放 : releaseset freelet go
- 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...
- 穩 : 形容詞1 (穩定; 穩當) steady; stable; firm 2 (穩重) steady; staid; sedate 3 (穩妥) sure; rel...
- 定 : Ⅰ形容詞1 (平靜; 穩定) calm; stable 2 (已經確定的; 不改變的) fixed; settled; established Ⅱ動詞...
- 度 : 度動詞[書面語] (推測; 估計) surmise; estimate
- 放電 : [物理學] (electric) discharge; electro-discharge; discharging
- 穩定度 : degree of fixation
- 穩定 : 1 (使穩定) stabilize; steady 2 (穩固安定) stable; steady 3 (物質的性能不易改變的作用) stabi...
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This paper starts the research of the liquid floated pendulous accelerometer testing system according to the engineering. at first, this paper gives the brief introduction of the history and present status of accelerometer and its testing technology, the working principium and math model of the liquid floated pendu - lous accelerometer, and then, decides the binary width pulse force retrim loop as the design proposal of testing system, researches the transfer function of every part in the system emphasizly, analyses the stability of the whole accelerometer testing system from the angle of control theoretics by the open loop transfer function of system, and designed the correcting net, analyses the basal problems such as resolution, sampling restraint, precision and so on, designs the hardware testing circuits such as preamplification, band - pass filter, alternating amplifier, phase sensitive demodulatorn, pulse - width modulation, frequency scale circuit, moment current generator. finally, using the graphics program language labv - iew which is designed for testing field especially by ni accomplishes the solfware design of testing system, realized the testing functions
首先對加速度計及其測試技術的發展歷史和現狀,液浮擺式加速度計的工作原理和數學模型等作了簡要的介紹,然後確定了以二元調寬脈沖再平衡測試迴路為設計方案,並從控制理論的角度進行了分析,著重研究了系統中各部分的傳遞函數,利用系統開環傳遞函數分析了系統的穩定性,同時設計了系統的校正網路;分析了二元調寬脈沖再平衡測試迴路的解析度、采樣約束以及測試精度等基本問題,並按照系統分析的結果設計了包括前置放大、帶通濾波、交流放大、相敏解調、脈寬調制、頻標電路以及力矩電流發生器等測試系統各部分硬體電路,驗證了電路的正確性,最後按照測試系統的要求,採用了美國ni公司專為測試領域所開發的虛擬儀器工具? ? labview作為測試軟體開發工具,利用該圖形化編程語言完成了測試系統軟體部分的設計,實現了測試功能。The results show that : nano - nickel powder is not useful for mh electrode during the high rate discharge phase as a conductor or additive ; superfine nickel powder is applicable for the conductor of the negative because of the good performance especially the cyclic stability at 1c rate by using 5 % ( mass percentage ) nickel powder ; the utilization of alloy, specific mass and volume capacity are increased with the decreased particle size of nickel powder in negative, however, the capacity fading rate at 1c discharge rate is also increased, so the capacity and the cyclic stability should be taken into account to make a choice of the particle size
結果表明: mh電極中加入納米鎳粉對負極的大電流放電性能不利。 mh電極中加入超細鎳粉后電極綜合性能好,尤其是1c循環穩定性,其最佳添加量為5wt 。減小鎳粉粒度提高了電極合金利用率、質量比容量、體積比容量,但增大了負極1c容量衰減率,因此鎳粉粒度的選擇應綜合考慮mh電極容量和循環穩定性。In this paper, we studied the deterministic mechanism of isi with the unstable period orbit ( upo ) ; we tested many isi data from different model with the method of approximate entropy ( apen ) to study the method which is used in testing the degree of complicacy of isi and we built up a system including hardware and software for our lab to view and record action potential, firing frequency and isi in real time. results 1. spontaneous firing patterns were observed from neurons of supraoptic nucleus ( son ) in hypothalamus with the method of patch clamp
本研究通過對大鼠視上核神經元自發放電的非穩定周期軌道的計算,討論了isi的確定性問題;利用近似熵的方法對多種神經放電的isi資料進行了復雜度的測量,討論了這種方法在isi的復雜度測量第四軍醫大學碩士論文中的應用;另外,還開發出一套記錄原始放電和isi的程序,解決了採集isi的問題。The synchronous rectifying and low power sampling technology is used to reduce the power consumption, flexible external loop compensation, error amplifier output clamp are adopted for better system large signal response. the piecewise slope compensation technology is employed to minimize the consequence of over compensation. the sensor resistor is externally connected, which realize output voltage programmable. the overheat protection and under voltage protection modules are integrated in the die to allow the reliable operation of the system
同時,電路設計採用同步整流技術、低功耗電流采樣技術降低功耗,提高轉換效率;採用靈活的外部環路補償技術、誤差放大器輸出嵌位技術以實現良好大信號特性;採用分段斜坡補償技術,消除不穩定因素,並最大程度地減小過補償帶來的問題;採用外接輸出采樣電阻的方式,實現輸出電壓的可編程。Partial substitution of manganese in lixmn204 by cobalt or lithium can reduce the fermi energy, increase the. net charge of lithium ion, and diminish the value band width, corresponding to the drop of the discharge voltage, the loss of the reversible capacity, and the improvement of the cycling performance due to increasing structural stability, respectively
在limn2o4中摻入鈷和用鋰離子代替16d位錳離子將使材料的費米能減小,放電電壓降低;摻雜態中部分鋰離子的凈電荷增大,鋰離子與氧離子的相互作用增強,可逆容量降低;摻雜態的價帶寬度變窄,結構的穩定性增加,從而改善循環性能。Compared with other connection process, it has many advantages, such as simple technics, reliable connection strength, low cost and adapting to connect various kinds of materials etc. by means of increasing the capacitance and decreasing the voltage, we control the discharging energy and apply the low - voltage electromagnetic riveting ( lver ) process to rivets made of some widely used materials
同其他連接形式相比,其工藝過程簡單、連接強度穩定可靠、成本低並能適應于各種材料之間的連接。本文通過增加系統電容量和降低電壓的手段來控制放電能量,將低電壓電磁成形方法用於常用材料鉚釘的鉚接。The concept of viffoal laser frequency stabilizaion is put fowi. the frequency stabilizaion at the center of doppler curve has been realized aller signal detecting, phase sensitive detecting, integrating and high voltage amplifying circuits with fm spectroscopy a frequency stability of l0 -, has been obtained with a reproducibility of l0 - 9. hyperfine spectra of, ', i, near 532nm have been studied via modul8tion tfansfer spectroscopy
利用fm光譜法將激光單次通過碘吸收室進行線性吸收,再經信號檢測、混頻、積分和高壓放大等伺服電路,實現了在多普勒曲線中心處的頻率穩定,頻率穩定度和復現性可達10 ~ ( - 9 )量級。In this circuit, reference current sources are used to charge and discharge capacitors. this oscillator ’ s output is very ideal through control circuit under 5. 7v reference voltage, and oscillator ’ s frequency and duty - cycle could be adjusted if reference current source or capacitors in the circuit was adjusted. and the changes of temperature and voltage affect stabilize of the frequency little
此電路利用系統內部基準源產生的電流信號來對電容進行充放電,然後經過控制電路作用后,產生的輸出振蕩波形的上升時間和下降時間非常小,更接近理想矩形波形;通過調節基準源電流信號或者電容值大小,可調節振蕩波形的頻率和占空比,同時溫度和電壓的變化對振蕩器輸出波形頻率穩定度的影響很小。The structure of this magnetic inducting crankshaft position sensor assembly is simple, reliable easy for installation and use, being a crucial part of electronically controlled engine. as one of the important input signal of ecu controller, the sensor assembly can transmit stable cranking signal under any rotating speed of engine and ensures the stability of the performance of electronically controlled engine in respect of oil consumption, exhaust and output
該磁感應式曲軸位置傳感器總成結構簡單,工作可靠,安裝使用方便,是電控發動機重要關鍵的部件作為ecu控制器重要的輸入信號之一,該傳感器總成能在發動機任何轉速輸出穩定的曲軸角度信號,可確保電控發動機在油耗排放輸出功率方面的性能保持穩定。After finished the cyclic voltammetry experiments, the results showed that iron steel grid can act as good current collector in the aqueous electrolyte. while the scan rate was fall in the range of 0. 5 - 4. 0mv / s, electrochemical reaction of the lithium insertion / extraction in the solid phase was kinetically limited by the diffusion of lithium ions. after 40 cycles in aqueous electrolyte the discharge capacities of sample of s13 reached 77mah / g, and showed good cycle performance
在水溶液中不銹鋼網可以作為電極的集流體,在0 . 5 - 4 . 0mv / s的掃描速度范圍內,鋰離子在尖晶石鋰錳氧化物的嵌入和脫嵌的電化學反應在動力學上是受鋰離子在固相中的擴散所控制,充放電實驗顯示樣品s13在水電解液中經過40個循環后達到77mah / g的放電容量,具有很好的循環穩定性。The definition of stability and repeatability of the laser frequency and factors affecting the stability of laser frequency were analysed. the normal methods used to stabilise frequency and produce double - frequency were explained. after analysing the working conditions and related parameters of the laser device, it was concluded that the laser tube should be put inside an insulating cover and an electric discharge tube with a bigger diameter and length, smaller wall thickness and a higher thermal conductivity coefficient should be chosen
分析了激光頻率的穩定性、復現性的定義及影響激光頻率穩定的因素;介紹了常見的穩頻及產生雙頻的方法;分析論證了激光器雙縱模熱穩頻的使用條件和有關參數的關系,得到結論是:應將激光管裝在保溫罩內;選用放電管直徑及長度大、壁厚小、材料導熱系數大的放電管。To meet the increased regulatory requirements on emission and fuel economy, the electronic control units ( ecu ) for engine is becoming more and more complex, which also makes its exploitation more difficult. the traditional method of debugging ecu through bench tests is almost outdated for its high cost, long exploitative period, unstable environment, etc. the substitute is found to be hardware - in - loop simulation
為了滿足日趨嚴格發動機排放和燃油經濟性法規限制,發動機電控系統( ecu )的功能復雜程度在不斷提高,相應的開發難度也在不斷加大,通過臺架試驗來逐步調試ecu的傳統方法由於耗費大量人力物力,開發周期長,調試環境不穩定、可重復性差等缺點,已難以適應ecu系統快速升級換代的需求,對此可採用硬體在環模擬技術予以解決。Based upon basic principles of the analog integrated circuit and theories of system stability, this paper deals with high precision, wide band - width and fully differential cmos operational transconductance amplifiers ( ota ). other than discussions about its performance evaluation and testing, a two - stage full differential ota has also been designed including its core cell and the overall layout
基於模擬集成電路基本理論與系統穩定原理,論文針對高精度、寬帶寬cmos全差分運算放大器( ota )進行了性能指標及測試技術探討,並研究設計了cmos全差分共源共柵兩級ota 、核心單元與總體電路版圖。2. as for the intermediate frequency part in integrated circuits ( ic ' s ), we introduce feedback automatic gain control ( agc ) loop in view of its fargoing dynamic range and convenient precision adjustment, hence stable power of fore - demodulator signal and maximum systematic gain are ensured
2 、中頻部分採用集成電路的反饋式自動增益放大環路,動態控制范圍大,控制精度調節簡便,是系統增益的最大來源,同時也保證了中頻解調器前信號的功率穩定。Technological conditions of the cathode material lini1 - xcoxo2 using like sol impregnation method at air atmosphere have been investigated systematically. the structure and cycling performance of the sample linio. 7coo. 3o2 obtained at optimal conditions have been further studied too. the results indicates that the sample exhibits good electrochemical properties when cycled at low current density, and the material has little volume changes, showing good stru
通過對不同充放電電流下材料的xrd圖譜的特徵及循環穩定性的分析,發現空氣中合成的lini _ ( 0 . 7 ) co _ ( 0 . 3 ) o _ 2材料以低電流密度充放電時具有良好的電化學穩定性,當材料以低電流密度在0 . 3 1 - y 1 . 0范圍內進行脫/嵌鋰反應,材料的體積變化較小,結構穩定。The morphology examination by sem and tem showed that the carbon nanotubes were arranged in the array uniformly and paralleled, with smooth walls, the outside diameter of 120 nm and the inside diameter of 110 nm. from the cyclic voltammetry, the array electrodes in an acidic electrolytic solution had greater capacitance than the case in a neutral electrolytic solution. the specific capacitance of 365 f / g was achieved with the discharge current density of 210 ma / g in the solution of 1 mol / l h2so4
掃描電子顯微鏡和透射電子顯微鏡對碳納米管陣列電極的形貌表徵表明碳納米管形狀規整,排列有序,尺寸均勻,管壁光滑,外徑約為120nm ,內徑約為110nm ;循環伏安實驗表明mwnts陣列電極在酸性溶液中比在中性溶液中具有更好的電容性能;根據恆電流充放電法得出mwnts陣列電極在1mol / lh _ 2so _ 4水溶液中,在210ma / g的放電電流密度下的比電容可達353f / g ,比目前報道的無序碳納米管和活性炭電極的比容量都高得多;其它電化學實驗顯示該電極具有很低的內阻和良好的充放電循環穩定性。分享友人