極間電容 的英文怎麼說
中文拼音 [jíjiāndiànróng]
極間電容
英文
direct interelectrode capacitance-
This article introduces briefly the process of design and characteristic of structure of db930 tube and discusses the main problems of technology and technique which was met during the manufacture and the measures having been adopted are emphatically. it discusses the solve measures in following six aspects : the filament current is too large, carbon deposits during the carbonizing of cathode, the capacitance between the first grid and the second grid is too large, transpiring happens inside the tube, the insulation resistance between the electrodes is too lower when the filament is on and the ability of bearing high voltage is too lower
本文簡略地介紹了db930的設計過程及其結構特點,重點論述了在試制過程中遇到的主要工藝技術問題及解決問題的措施,圍繞解決燈絲電流大、陰極碳化時積碳、一柵和二柵之間的電容大、管內蒸散、熱態時極間絕緣低、耐高壓的能力差等六個方面的問題進行了論述。Exploding wires phenomenon is that if the high - density energy is poured into metal wire with small transverse section in a short time from high power pulse source, the metal wire will explode into gaseity and generate significant shock wave. the. fundamental reason of the generated shock wave is the plasma
爆炸絲現象( explodingwiresphenomenon )是將存儲于高壓電容器中的能量,在極短的瞬間內傾注于很小截面積的金屬絲,使之汽化,產生強大的沖擊波,這種沖擊波產生的根本原因就是等離子體。A novel low mechanical hysteretic ceramic capacitive pressure transducer has been made, by using of ceramic sealing technology ; integrate circuit ( ic ) technology and thick film plane fixing circuit technology. this transducer is made of a deformable ceramic diaphragm and a ceramic base plate, between which has an air cavum. a coaxial gold electrode was fired onto the diaphragm and the base plate
本文利用新型陶瓷技術、集成電路技術和厚膜平面安裝電路技術,採用零力學滯后的陶瓷和陶瓷密封材料進行設計製造了一種非充液乾式的電容式壓力傳感器,該壓力傳感器由較厚的陶瓷基體和較薄的陶瓷膜片構成,中間形成一空氣介質腔,在基座和膜片之間內置同軸的雙電極,組成兩個電容,當膜片承受壓力時發生位移,使電容量產生變化,經後置處理電路直接轉換為可輸出的直流電壓信號。5 ) the system ' s sensitivity and snr can be improved by the method of balancing the standing capacitance using dc offset compensation
採用直流反饋補償的方法消除電容傳感器極板間的靜態電容,提高了系統的解析度和信噪比。It is believed that p - si tft will be the main type in the future panel display. among the process of manufacture p - si tft, the source and drain will have the superposition with grid for the reason of machine ’ s alignment error. the superposition will bring superposition capacitance and it will badly cut down the electric performance
在制備多晶硅tft時,由於機器的套準誤差會在柵極與源、漏極之間產生重疊部分,這樣就造成了柵源、柵漏之間的交疊電容,交疊電容的存在嚴重影響了多晶硅tft的性能,而利用自對準工藝制備的多晶硅tft則避免了交疊電容的產生。With the development of electronic technology in the field of high - frequency and high - power, power mosfet is gradually enhancing its important status in semiconductor apparatus and is being widely applied in power converters as switch. with the increasing of the operating frequency ( > 200khz ), the energy loss caused by parasitic capacitance will affect the efficiency of power transforming in converters. especially in the applications of high frequency power supply using mosfet as main devices ( the unit of frequency is mhz ), the energy loss caused by the switch process will badly affect its efficiency
隨著電力電子技術進一步向高頻的大功率用電領域發展,功率mosfet在各種電力半導體器件中的重要地位日益顯著,使用功率mosfet作為開關器件的功率轉換電路也日益增多,但隨著器件開關頻率的提高(大於200khz ) ,由器件極間電容引起的能量損耗將會影響到功率轉換電路的能量傳輸效率,特別是在以mosfet作為開關器件的高頻感應加熱電源中(工作頻率可達兆赫) , mosfet在開關過程中的能量損耗嚴重影響到電源的效率,因此如何減小開關器件的損耗提高高頻功率轉換線路的效率成為電力電子技術領域的重要研究課題之一。It was tested on static characteristic parameter, including the interelectrode capacitance, voltage resistance and others. the test data are almost same as those of th558. the design goal was achieved on static parameter
對樣管的極間電容、耐壓和靜態特性參數進行了測試,測試結果與th558樣管基本一致,靜態參數達到研製目標。The electrochemical impedance spectroscopy of nickel electrodeposition indicates that nickel electrodeposition occurs in two steps, the medium frequency inductive loop is ascribed to the relaxation of the electrode coverage by an adsorbed intermediate such as niohads, the low frequency capacitive loop may be due to the inhibition of nickel electrodeposition by adsorbed hydrogen. the mechanism and equivalent circuit of nickel electrodeposition were proposed on the basis of the analysis of electrochemical impedance spectroscopy
不銹鋼電極上電積鎳的電化學阻抗行為表明氨絡合物體系鎳電沉積過程是二次放電過程,中頻感抗弧是由於中間吸附產物nioh _ ( ads )的弛豫現象引起,低頻容抗弧可能是由於吸附氫原子對鎳結晶的阻滯作用引起,依據實驗結果提出了氨絡合物體系鎳電沉積的反應機理和等效電路模型。The operating principle of the compressed electret micromotor is the variable capacitance. the attenuation time constant of the charges on rotor surface is much longer than the shaping time of electret itself while the rotor is made of electret
扁平駐極體微電機的工作原理是電容可變原理,電機轉子採用駐極體材料製成,轉子表面電荷的衰減時間常數要比駐極體本身形成的周期長得多。The aim of this study is to investigate theoretically the possibility for activation of small mammalian myelinated nerve fibers without activating larger ones when stimulating a nerve fiber bundle with a monopolar point electrode using biphasic pulses, which can reduce the electrochemical damage resulted from stimulation pulses to nerve fibers. a simulation system for studying the electrical properties of mammalian myelinated nerve fibers was built based on a simple infinite and homogeneous volume conductor model. by use of an asymmetric but charge - balanced stimulation waveform, the sensitivity of excitation and blocking threshold of nerve fibers to fiber diameter, electrode - fiber distance was calculated. the results show that selective activation of small mammalian myelinated fibers may be possible in a region at some distance from the electrode using biphasic pulses
本研究的目的是要從理論上探討利用單電極雙向脈沖刺激實現哺乳動物神經纖維選擇性刺激, (即當刺激一束神經時,不興奮粗神經而興奮細神經)的可能性.雙向脈沖刺激可以降低刺激脈沖對神經纖維產生的電化學損傷.為研究哺乳動物有髓神經纖維的電特性,建立了一個基於簡單的無窮大、各向同性的容積導體模型的模擬系統.利用該模擬系統,採用「不對稱但電荷平衡」的雙向脈沖刺激,計算了神經纖維的興奮和阻斷閾值與纖維直徑、纖維-電極間距離的關系.結果表明:在距電極一定距離內採用該雙向脈沖刺激模式確實可以實現哺乳動物有髓神經纖維的選擇性興奮In addition, based on the analysis of the change of inter - electrode capacitances as changing working condition, a sub - circuit model for a power mosfet is developed and all model parameters can be easily extracted by data sheet. conducted emi includes two modes : differential - mode ( dm ) and common - mode ( cm )
功率mosfet的開關動態特性主要受其極間非線性電容和外部工作條件的影響,在分析了功率mosfet在開關過程中各極間電容變化的基礎上,本文以小信號ldmos為內核,提出了子電路形式的功率mosfet高頻模型,所有的模型參數也都可以利用產品數據曲線獲得。Supercapacitors, a new energy storage components between batteries and electrostatic capacitors, when work with batteries, can meet the high power out - put need of electric vehicles when starting - up or acceleration for their power density could be tens times higher than that of batteries
超級電容是一種介於電池和靜電電容之間的新型儲能元件,其功率密度比電池高數十倍,能量密度比靜電電容高數十倍。利用超極電容和電池組成混合動力系統,能夠很好的滿足電動汽車啟動、加速等高功率密度輸出場合的需要。The simulated results show that we can improve the sensitivity by setting the optical bias at / 2, reducing the gap of electrode, increasing the overlap integral factor, reducing the insert lose, adopting suitable segmentation number, increasing the electrode length, increasing the optical power, reducing the wavelength and the relative intensity noise and reducing the receive bandwidth ; obtain the wider bandwidth utilizing reducing the electrode length and the capacitance of modulator, segmentation the electrode ; increase the dynamic range using lowering noise, increasing the optical power at the detector and lower optical bias
通過計算得知,使傳感器相位偏置為/ 2 ,減小電極間距,提高電光重疊因子,減小器件插入損耗,採用合適的分段數,增加電極長度,增大光功率,降低激光的波長,減小相對強度噪聲,減小接收帶寬,對提高靈敏度的效果是非常明顯的。而減小天線長度,降低調制器電容,電極分段,都可以獲取較大的帶寬。降低系統噪聲;增加到達探測器的光功率,採用較低的光學偏置,都可以增大線性動態范圍。This paper describes a reconstructive algorithm which is based on network theory for electrical capacitance tomography technic. there are twelve electrodes in the system. the permittivity distribution of flow with two components within a pipeline is reconstructed. assume the permittivity distribution of the region to be reconstructed. then whole measured area is discretized into a network composed of capacitance. the measurement circuit which contains a pair of source electrode and detecting electrode is taken as a four - terminal network. the across admittance of the four - teminal network is proportional to the capacitance between the source electrode and the detecting electrode. modify the distribution of the permittivity according to the difference between the calculated capacitance and measured capacitance. the experimental results show that this algorithm is effective and can coverge
本文描述了一種用於兩種成份的流體成像的12電極電容層析成像新方法.該方法基於電路的網路理論,首先對重建區域假定一個介電率分佈,用電容網路作為離散化模型,將每一個源電極和探測電極對組成的測量電路看作一個四端網路,該四端網路的跨導與源電極和探測電極之間的電容值是線性關系,這個電容值和測量得到的電容值之間存在誤差,根據這個誤差對修正介電率分佈.通過對不同介質分佈作的模擬實驗結果,證實了該演算法是有效的,收斂的All the power devices including main switches and auxiliary switches are in soft - switching condition ( zvs or zcs ), while the freewheeling diodes are turned off in zero current condition. besides, the control of resonance between inductance and capacitor can be easily realized without needing of setting the threshold values of the inductance current
該電路中主開關和輔助開關均滿足zvs或zcs條件,續流二極體也工作在軟關斷方式,並且電感和電容之間的諧振控制不需要設定電感電流閾值,控制邏輯簡單,可實現四象限運行。His guardians realize he is exceptionally wise, having intelligence equivalent to a whole library of books. his physics teacher discovers that jeremy s body is like an electrical conductor, hence the reason why his body cannot grow even a single strand of hair. the teacher believes that jeremy is a high level life - form extremely close to a state of pure energy
祖父母死後,警長與社工人員帶他離開家到教養院,經測試竟發現他是個世間的天才,腦袋瓜里充滿智慧,彷佛飽覽群書的高等生命體物理學教師更發現他是個電容體,所以全身長不出毛發教師認為溫謝利是極度接近能量狀態的較高等的生命狀態。In the 3 ~ 35kv power supply system of our country, the large part is the not solidly earthed neutral system. when the single - phase earthed phenomena happens in this system, this electric power network can run with failure. and in this way the operated cost can reduce greadty. and at the same time the power supply systemic dependability can be improved. but when the single - phase earthed current is large, this electric power system can engender easily arc earthed overvoltage and interphase short circuit by this means
在我國10 35kv供電系統中,主要為中性點非直接接地系統,這種系統在發生單相接地時,電網仍可帶故障運行,這樣可以大大降低運行成本,提高供電系統的可靠性,但這種供電方式在單相接地電容電流較大時容易產生弧光接地過電壓和相間短路,給供電設備造成了極大的危害。The error of the capacitance, electrostatic force and sensitivity between the computed values got from these models and the simulated values got from ansys for different angle of decline are researched
用有限元工具ansys中的電場模塊,分析了傾斜電容極板的電場邊緣效應。分析了文中所用的電容和靜電力模型的計算值和模擬值間的誤差。Methods for the measurement of direct interelectrode capacitances of electronic tubes and valves
電子管極間電容的測量方法.第1次修改A new method for controller design is proposed. after throwing a lot of study on existing nonlinear control methods, a new method is proposed which is derived from capacitor. considering the action exerted on electric particle between two plates of a capacitor, a kind of restricted function is constructed for state variable
在對現有非線性控制方法充分研究的基礎上,歸納、總結出一種新的工程式控制制方法,這一控制方法的思想來源於電容電極對極間電荷的作用原理? ?將控制器看作是電容電極,而被控對象看作是「粒子」 ,經過數學處理,形成一種對狀態變量的約束函數式。分享友人