時間電流試驗 的英文怎麼說
中文拼音 [shíjiāndiànliúshìyàn]
時間電流試驗
英文
time-current tests- 時 : shí]Ⅰ名1 (比較長的一段時間)time; times; days:當時at that time; in those days; 古時 ancient tim...
- 間 : 間Ⅰ名詞1 (中間) between; among 2 (一定的空間或時間里) with a definite time or space 3 (一間...
- 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...
- 流 : Ⅰ動1 (液體移動; 流動) flow 2 (移動不定) drift; move; wander 3 (流傳; 傳播) spread 4 (向壞...
- 試 : 名詞(古代占卜用的器具) astrolabe
- 驗 : 動詞1. (察看; 查考) examine; check; test 2. (產生預期的效果) prove effective; produce the expected result
- 時間 : time; hour; 北京時間十九點整19 hours beijing time; 上課時間school hours; 時間與空間 time and spac...
- 電流 : current; galvanic current; electric current; electricity; current flow電流保護裝置 current protec...
- 試驗 : trial; experiment; test
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The sort, material composite, structure properties and conduction mechanisms of eca ( electrical conductive adhesive ) were discussed in this paper. then three types of ega specimens were designed and made, on which temperature cycles test from - 55 ? to + 125 ? and thermal aging at + 125 ? were carried out. changes of the adhesive strength, eca ' s bulk resistance and contact resistance under the environment stress were summarized and a detailed evaluation on these specimens was given
本文在全面闡述導電膠的分類組成、物理結構、導電機理的基礎上,設計並製作了三批導電膠樣品,通過對樣品進行長時間的- 55 ? ? + 125溫度循環和125高溫存儲試驗,總結了導電膠粘接強度、體電阻和接觸電阻在環境應力下的變化規律,對三類樣品的長期可靠性做出了全面的評價,並結合導電膠電阻率和「穿流閾值」的計算機模擬,給出了提高導電膠可靠性和電導率的建議,介紹了國內外在高電導率高可靠性導電膠研製方面的一些最新進展。In this paper, rebar corrosion state was judged with three electrochemical nondestructive measuring technologies, i. e. half - cell potential, a. c. impedance and time potential. when the rebar was transformed from passivation to depassivation, it can obtain the chloride ions corrosion critical content through taking and analyzing chloride ions content around the rebar
本文利用半電池電位法、交流阻抗法和時間電位法三種電化學無損檢測技術判斷評估試件在試驗過程中鋼筋腐蝕狀況,當鋼筋由鈍化狀態轉為活化狀態時,取樣分析鋼筋周圍氯離子含量,得到了不同技術條件混凝土的氯離子臨界濃度。Test results indicated : with the hoist of altitude, the increase of ice amount and the rise of pollutant, the average flashover voltage reduced. the character exponent generally depends on the insulator profile, ice amount, ice state and pollution severity etc. by means of a high - speed camera, a data acquisition system and high voltage test facilities, a series of the flashover processes on ice surfaces were record. the experimental results form this study and the subsequent theoretical analyses suggested : the thermal ionization of the air in front of an arc root resulted in arc movement ; the electrostatic force had an auxiliary effect of impelling arc propagation ; the electrical
通過對攝像機、數據採集系統及高壓試驗裝置記錄覆冰絕緣子表面閃絡電弧的發展過程的試驗結果進行理論分析得出:弧根周圍空氣的熱電離導致了電弧的發展,靜電場力對電弧的發展起到了加速作用,電擊穿僅發生在閃絡最終的跳躍階段;通過測量閃絡過程中的放電電壓、泄漏電流、閃絡時間、覆冰水電導率、電弧長度及電弧半徑等參數,得到了不同階段電弧(電弧起弧階段、電弧發展階段及完全閃絡)的發展速度、臨界電弧長度均隨覆冰水電導率的增加而減小。It can acquire the voltage on the test appliance and current in the circuit. and it can see these electrical signals as its input and calculates based on the data and gives the parameters and waveform that user needed. the parameters we can get through calculation include power factor, joule ' s integral, available value, maximal value, minimum value, time constant etc. recently, there are many scholar is studying the algorithm that calculate the parameter using test data, but many of them adopt the heuristic method, not using the test data directly
本課題研製一套電器試驗參數高速採集系統,能夠檢測試驗迴路中試品上的電壓信號和迴路中的電流信號,並根據這些電信號的數值利用計算機進行在線計算,並給出用戶需要的各種電參數值和用戶需要的波形圖,通過計算得到的電器參數有功率因數、焦耳積分、有效值、最大最小值、時間常數等。A mixture of three amino acids ( arg, gly, glu ) labeled with fluorescein isothiocyanate ( fitc ) was separated in pdms microfluidic chip, the separation voltage is 200v / cm, the separation time is less than 120 seconds ; according to ccd fluorescence images, two distinct physical processes - stacking and destacking during sample injection were studied qualitatively ; rhodamine b, a kind of temperature - dependent fluorescence dye, was used as probe to develop a temperature - fluorescence intensity equation, then temperature - color map in microchannels was constructed, and temperature trait in microchannels on the pdms microfluidic chip was analysed. according to the results, we conclude that the electric field applied to the pdms microfluidic chip should not exceed 400v / cm
利用pdms微流控晶元對fitc標記的精氨酸、甘氨酸、谷氨酸混合物進行了電泳分離,分離電壓為200v cm ,分離時間不到120秒;通過拍到的熒光顯微圖像對電泳注樣過程中復雜的樣品分子積聚與解聚現象作定性的分析;以熒光染料rhodamineb為溫度熒光探針,建立了pdms微流控晶元上的溫度-熒光強度的關系公式,並利用matlab圖像處理工具箱構建出微流體溝道內的溫度色圖,對pdms微流控晶元的微流道溫度特性進行了分析,根據實驗結果,我們認為對于pdms微流控晶元來說,在進行需要外加電場作用的試驗時,外加電場不應超過400v cm 。The shorter the interval between the two pulses of the current wave, the fewer strikes the varistors can endure. at the same time, the dc ljima changes fast - slowly - fast alone with the experiment continuing. microstructual disorder, such as variations in the height of the electrostatic potential at grain boundaries and electrode protrusions into the zinc oxide varistors, causes substantial temperature rise in a microscopic region around the defect and is the source for failure
雷電的多重閃擊對雷電過電壓保護器件的影響更加嚴重,本文首次採用不同間歇時間雙脈沖電流沖擊對氧化鋅電阻進行了多次試驗,試驗表明:氧化鋅電阻在雙脈沖電流沖擊下更容易出現老化破壞現象,間歇時間越短,電阻能耐受的沖擊次數越少;此外,直流u _ ( 1ma )值隨沖擊次數的增加具有快一慢一快的下降過程。The sample with low emitter efficiency has completed as the method of above. this lead to the greatly decrease of the reverse recovery time and the low reverse leakage and forward voltage, especially the excellent temperature character of the leakage. the test date shows that the samples reach the first class of international level
本論文作者通過模擬測試,驗證了課題研究的理論設想,並設計製作了具有低陽極發射效率結構的高壓功率frd ,利用局域鉑摻雜和電子輻照相結合的壽命控制方式,實現器件反向恢復時間的極大減小,並且反向漏電流、軟度因子、正向壓降等關鍵參數也較理想,且具有極佳的漏電溫度特性,達到器件綜合性能的優良折衷,達到國際先進水平。However, the refractive index will increase with the increase of the flow ratio of sifu / nhs, slightly increase with the increase of substrate temperate, and decrease with the increase of rf power. by measuring the passivation results of hydrogen plasma and sinx thin film, we found an evident improvement of minor carrier lifetime in polycrystalline silicon after hydrogen plasma treatment, although it has little to do with the annealing temperature and time. the hydrogen contained in sinx thin film can enhance the carrier mobility of monocrystalline silicon, but after annealing at high temperature the mobility turns down
通過測試氫等離子體鈍化和氮化硅薄膜鈍化的效果,實驗還發現氫等離子體處理對多晶硅材料的少子壽命提高作用比較明顯,但是這種提高作用與處理溫度以浙江大學碩士學位論文王曉泉2003年5月及時間的關系不大;氨化硅薄膜中的氫對單晶硅的載流子遷移率提高有一定作用,但經過高溫處理后這種作用消失;氮化硅薄膜能提高單晶硅和多晶硅的少子壽命,具有表面鈍化和體鈍化的雙重作用;氫等離子體和氮化硅薄膜都能有效地提高單晶和多晶電池的短路電流密度,進而使電池效率有不同程度(絕對轉換效率0The pretreatment, effect of bath compositions and operation conditions such as temperature, currenty and time on compactness of the zinc and cu / ni / cr coatings have been investigated. the relationship of operation conditions to thickness of the coatings was studied by weight method. the specimens have been pickled in nacl or sulfate acid solution to evaluate the porosity of the coating
研究了鎂合金電鍍前處理工藝,電鍍鋅、電鍍銅/鎳/鉻工藝配方及其施鍍溫度、電流密度和時間對鍍層緻密性的影響;採用稱重法研究施鍍工藝與鍍層厚度的關系,利用nacl溶液和硫酸溶液浸泡試樣來考察鍍層孔隙率,採用劃痕試驗和熱震試驗檢驗鍍層的結合力,採用金相顯微鏡和掃描電子顯微鏡觀察鍍層表面形貌。When dicussing reliability design and reliahbaiiy ensuring methods, a new reliability calculating model of petroleum logging tools is presented, reliability assurimg technologies should be taken in petroleum logging tools and their using approaches are presented and stated from electricity design and mechanical design, reliability system model of petroleum logging tool is set up according to the latest reliability theory, reliability indexes of petroleum logging tool and their acquiring ways are discussed, the reconmended reliability indexes ( mwture, nolwnm, mtbf, mttf ) of petroleum logging tool are presented : the mean working time under rated error ( mwture ) of the new tool is obtained through experiments. when studying data processing methods, the property of gamma - ray signal is stated and the type of it ' s measuring error is examined using statistical method, the basic theory of digital filtering and the basic situation of digital filtering methods are introduced and analyzed, the factors affecting digital filtering effect to gamma - ray signal and the effect of digital filtering to logging curve are analyzed, the evaluting criteria ( rvi, rmse, sfi ) of digital filtering effect are set up from two aspects, named as real value acquiring of steady section and the formation boundary checking and processing, the related filtering methods and examining methods are given out. the design methods of digital filter used to process gamma - ray signal are discussed, the mixed filtering scheme of natural gamma - ray log is presented, the realization ways are discussed. the selective filtering system and it ' s realization flow are given out through quantitive reseaching to part of digital filters, three new filtering sheme will be used to process gamma - ray signal in era2000 logging system
在探討可靠性設計與可靠性保障技術時,提出了石油測井儀器的可靠性計算新模型,從電氣和機械兩個方面,提出並闡述了應採用的可靠性保障技術及其使用方法:根據最新可靠性理論,建立了石油測井儀器的可靠性系統模型,探討了石油測井儀器的可靠性指標及其獲取途徑,提出了推薦使用的石油測井儀器可靠性指標( mwture , nolwnm , mtbf , mttf ) ;通過試驗,得到了所設計儀器的穩定工作時間( mwture ) 。在研究數據處理方法時,闡述了伽瑪信號的特徵,對測量誤差類型進行了統計檢驗;介紹了數字濾波的基本理論、數字濾波方法的概況,並進行了分析;對伽瑪信號數字濾波效果的影響因素及其對測井曲線的影響進行了基本分析;從獲取平穩段真值、地層邊界的檢測與處理兩個方面,建立了數字濾波效果的評價準則( rvi , rmse , sfi ) ,給出了相應的數字濾波方法及效果評價方法;探討了自然伽瑪信號數字濾波器的設計方法,提出了適合自然伽瑪測井的混合濾波方案,探討了混合濾波方案的實現途徑;通過對部分數字濾波方法的定量研究,給出了靈活可選的數字濾波系統構成及實現流程;提出的三種濾波方案,將用於era2000成像測井系統,對自然伽瑪測井數據進行濾波處理。Finally, after the long - term ion migration test, we analyzed the relation between the current and accumulative charge with the test time, computed the ion mobility and migration distance, and analyzed the distribution variety of na + and k + in the test samples
對10支試品進行了長期離子遷移試驗,測量了泄漏電流曲線和累計電荷量隨時間變化曲線,計算了試品的離子遷移率和遷移距離,並對試品na ~ + 、 k ~ +的含量進行了化學分析。Moreover, the behavior of microwave transmission displays the relaxation effect, which is related to the field strength and the concentration of the fluid
作者在試驗中還發現微波透射率隨電場強度的變化具有明顯的弛豫效應。並且弛豫時間與電流變液的濃度及所加電場強度有關。Based on the theory mode, the delay time between the beginning of optical illumination and the onset of lock - on switching was calculated, and the transiting speed of electrons, the traversing velocity of the current filament, was obtained as well. the calculated results matched well the experimental results. taking advantage of the ultra - fast response characteristics of the devices, si - gaas pcss ' s are successfully applied to the broadening test of nanosecond laser pulses
應用單極電荷疇模型數值計算了lock - on效應的光、電時間延遲和載流子的渡西安理工大學碩士學位論文越速度(絲狀電流穿越開關間隙的速度) ,所得計算結果與實驗測試結果基本吻a利川半絕緣gaas光屯導開關的超快光l匕11向應燈性,成功地應川下納秒激光脈沖展寬試驗中,證明了開關可廠泛應川在超快光電響應和光電反饋網路中。The 2503ah power analysis instruments come with preprogrammed configurations for electronic ballast testing, several 3 phase and motor test configurations. you may configure the 2503ah - 3ch as 3 independent power analyzers, or as the most advanced 3 phase analyzer. for electronic ballast testing, one channel may be set up to measure line input dais, while the other two channels measure the high frequency signals
Xitron儀器已為電子鎮流器測試制訂速度與準確度的新標準,高速fft處理器能將鎮流器測試時間縮減可高達75 % ,測試參數包括效率,功率因素,失真及個別的諧波內容, 2503ah系列可完全支援iec - 555符合測試,亦為先進的測試實驗室,測試系統製造商及全球三大照明產品製造商所廣泛採用Typical uses of scanner switching include burn - in testing of components, monitoring time and temperature drift in circuits, and acquiring data on system variables such as temperature, pressure, and flow
掃描儀切換的典型應用包括器件的老化試驗、電路的時間和溫度漂移監測,以及採集系統的參數數據,例如溫度、壓力和流量。Practice shows that compared with the former coal loading system, the new system has advantages of even coal conveying flow, reduced over - load time, and improved efficiency
利用該方法在上海某電廠進行了多個運行班次的效能分析試驗,結果表明,與原來的上煤系統相比,上煤流量比較均勻,既縮短了超載時間,又提高了上煤效率。X - ray diffraction analysis and density analysis and crystal structure analysis have been adopted to analyze the grid ’ s rough. through large numbers of experiments and practice, technological condition of gas discharge and depositional temperature and depositional pressure and depositional time of all kinds of the pyrolytic grid ’ s roughs has been gained. now we can deposit small and big grid ’ s roughs successfully
通過大量試驗研究和生產實踐,摸索並優化出不同品種規格的石墨柵極毛坯沉積的氣體流量、沉積溫度、沉積壓強、沉積時間等參數,能夠順利地沉積出性能優良的小型、大型的各類品種的石墨柵極毛坯,滿足了公司大功率及超大功率電子管的電參數要求,保證了新產品的成功開發。The technological process of trivalent chromium plating and the way of preparing the cheap chromium material were explored. the contribution of the technological parameter, such as current density, temperature, ph values and time to the trivalent chromium plating, was studied. the technological condition, which is suitable to be industrialized, was determined
通過模擬生產試驗,研究了三價鉻工藝流程,探討了電流密度、溫度、 ph值、電鍍時間等工藝條件對三價鉻成膜性能的影響規律,並確定了適合於工業化生產的工藝條件。There is a pretty strict limit of reliability, cost, volume and energy - consuming. real - time embedded control system is applied for firm real - time and responding circumstance. aiming at direct current servo electromotor, a set of servo experiment system is designed, exploitation flow and process of real - time embedded control system are advanced, some issues of them are paid much more attention, the satisfied effects are obtained in the real circumstance, these issues include : exploitation of embedded system, analysis of superiority of the exploitation, the exploitation of embedded linux operation system from kernel customizing and file system cutting out to system starting up is researched, some factors which effect the system ' s capability are analyzed, the settled real - time schemes of linux os and the arithmetic of preemptive priority scheduling and round - robin scheduling and latest and rapid arithmetic are researched
本文圍繞著針對直流伺服電機設計一套伺服試驗系統,對于嵌入式實時控制系統應用技術進行了比較全面的研究,提出了嵌入式實時控制系統的開發流程和步驟,並對其中的一些問題進行了專門研究,在實物實驗中獲得了比較好的效果,這些問題包括:嵌入式操作系統開發,分析了使用linux操作系統進行嵌入式操作系統軟體開發的優越性,並且從內核定製、文件系統裁剪、系統啟動等幾個方面研究嵌入式linux操作系統的開發;實時性研究,分析了在操作系統中影響系統實時性能的因素,研究了linux操作系統的幾種實時解決方案,並且研究了基於優先級的可搶占式與可選擇的同優先級按時間片輪轉相結合的調度演算法以及最遲響應與最快處理的可搶占式調度演算法。6. the capacitor dielectric between foil can endure 2. 15 times of rated voltage for 10 seconds. 7
6 .電容器的極間介質能承受工頻交流2 . 15倍額定電壓,歷時10秒的試驗。分享友人