阻抗大小 的英文怎麼說
中文拼音 [zǔkàngdàxiǎo]
阻抗大小
英文
impedance level-
The device mainly consists of integrated phase - shift trigger unit, detection unit, amplification and impedance conversion unit, the smallest excitation limitation unit, reactive regulation unit and three - phase controlled bridge rectifier
本裝置主要包括集成移相觸發單元、檢測單元、放大及阻抗變換單元、最小勵磁限制單元、無功調查單元和三相全控橋。The factors which affect the spl : the square measure of diaphragm, the amplitude of vibration, magnetic field intensity, power, impedance, resonant chamber, the pattern and the thickness of diaphragm, and the holes
音量會影響聲音大小的因素:膜片面積,振幅,磁場強度,功率,阻抗,音腔大小,膜片花紋/厚度,開孔Finally, the method of estimating power customer emission level based on binary linear regression is put forward, which make it a condition that harmonic emission is steady at the point of common coupling. combined with power system thevenin equivalent and customer norton equivalent, according to the principle of least squares method, the voltage that a customer ' s harmonic current begets at the point of common coupling can be estimated in the light of the plural correlation of network parameters
最後,提出了基於二元線性回歸的用戶諧波發射水平估計方法,該方法在假設公共聯接點諧波發射穩定的情況下,結合系統側戴維南等值與用戶側諾頓等值的電路圖,按照最小二乘法原理,利用電網各參數的復數關系推導關于系統側諧波阻抗的二元線性回歸方程,並根據諧波阻抗的估計值求取用戶諧波電流在公共聯四川大學碩士學位論文( 2003 )接點產生的電壓降。On the basis of the equivalent circuit diagram the solid - solid and the composite - electrolyte interfaces, contributed their impedance in the relatively high and low frequency regions
第三部分是探討不同粒徑大小氧化釕奈米微粒復合電極在不同電位下之阻抗頻譜的變化,進而由等效電路圖來解釋其涵蓋的物理意義。The basic principles still apply : ground impedance must be as low as possible, high level and low level signals must be separated so that they do not interfere with each other, and capacitance and mutual inductance coupling must be avoided
前文提到的原理仍然適用:地線阻抗要盡量小,大功率信號和微弱信號要分開布置以避免串擾,一定要避免電容性耦合和電場耦合。The real part of the complex impedance decreases with frequency ; the imaginary part of the complex impedance increases with frequency to the maximum, and then decreases with frequency ; and phase angle decreases with frequency increasing
結果發現輝長巖復阻抗的實部隨頻率的增加而減小,而虛部隨頻率增加先增大后減小;相角隨頻率增加而減小。The pt secondary loop voltage drop is a changing amount and has the characteristics of indirection and certain randomness. the second, according to the cause of pt secondary loop voltage drop, the different methods to reduce the pt secondary loop voltage drop were analyzed and the conclusions are draw as below : 1. changing bigger section wire and maintaining the connector plugs regularly can reduce the pt secondary loop voltage drop effectively, but ca n ' t guarantee which meets the relevant rules
首先,通過對電壓互感器二次壓降的形成機理進行分析,得出以下關於二次壓降的相關結論: 1 、電壓互感器二次壓降等於二次迴路阻抗和迴路電流的乘積; 2 、電壓互感器二次迴路阻抗分為元器件自身阻抗和接觸阻抗兩部分,且接觸阻抗佔主要部分,從而使得電壓互感器二次迴路阻抗具有動態特性,而且具有一定的隨機性; 3 、電壓互感器二次迴路電流與二次負荷和迴路阻抗大小相關,因而二次迴路電流也是變化的; 4 、電壓互感器二次壓降是一個變化量,且具有單向性和一定的隨機性。Pic simulations are performed to determine gap scaling in a high density pegs. comparisons of simulation results with simply theory results and experiment results, indicate that the pegs gap is always equal to the critical gap for magnetic insulted electron flow. it is important to note that, the vacuum electron flow to the anode causes current loss and the
另外,根據模擬結果還得到了兩個重要結論:電流損失是由真空漂移電子的出現所造成的,電流損失的大小與負載阻抗成近似正比關系;負載阻抗等於peos的流阻抗時,負載獲得功率最大。The increasing of the width of the groove makes the phase velocity decreased largely but almost no effects on the bandwidth, and the coupling impedance enhanced
槽口寬增大相速減小較多,頻寬幾乎沒有什麼變化,耦合阻抗增大。With the radius of the center conductor increasing, the phase velocity is also decreased a lot, the bandwidth is relatively widened, and the dispersion of the structure is weakened but the coupling impedance is lowered
軸半徑增大,相速明顯減小,頻寬有一定程度的增加,色散減弱,耦合阻抗值降低。Then it discusses the influence of electric parameters on the heating effect bases on an analysis of the result of the numerical simulation
在集膚效應作用下,電纜導體內部的有效過流面積減小,交流阻抗顯著加大,其發熱量也很大,井下電纜伴熱加熱技術就是利用這一原理來加熱原油的。After some correction of the apparent reflection coefficient, the extent of wave impedance differences of the reflection interfaces can be analysed quantitatively and, on such a basis, the defective position of the pile body can be detected
將視反射系數經過一定的校正後,可定量分析反射界面的波阻抗差異的大小,進而確定樁身缺陷的嚴重程度;反射波往返時則用來推算樁身缺陷的位置。According to zero sequence voltage distribution from system zero sequence impedance to shunt reactor zero sequence in zero sequence circuit, the zero sequence voltage at the terminal of shunt reactor and the zero sequence compensating voltage at neutral are compared in the scheme
即根據零序網路中零序電壓在系統零序阻抗和電抗器零序阻抗上的分佈情況,通過直接比較電抗器首端零序電壓與補償到電抗器末端中性點的零序補償電壓的幅值大小,來判別電抗器匝間故障。It has been shown by our calculations that conductor loss is greatly reduced under velocity matching with relatively thick coplanar waveguide electrodes and thick buffer layer, but the characteristic impedance can not match with that of the external circuit at the same time, and the modulation bandwidth is confined in this case
然後,用一般的橢圓積分計算了普通共面波導型調制器的有效折射率、特徵阻抗和導體損耗系數。通過計算發現,採用厚電極和厚緩沖層結構,在實現速度匹配的情況下,可以大大減小導體損耗,但是由於阻抗不能同時滿足匹配,調制帶寬受到限制。The research on the rf characteristics of the conductor - centered helical groove sws. ( a ) in the " cold " system, we found that the changing of depth of the groove has no distinct effects on the phase velocity at the lower frequency region ; but with the increasing of the frequency, the phase velocity and bandwidth are reduced slightly, the structure is more dispersive and the coupling impedance is enhanced
對具有中心導體軸的矩形螺旋槽慢波系統的高頻特性進行了理論研究: ( 1 )在冷系統中的研究結果表明:頻率較低時,槽深的改變對相速的影響不是很大,隨著頻率的增大相速略有減小,同時帶寬也有所減小,色散變得稍強,耦合阻抗增大。It was found that introduction of hydrophobic monomer into polymer chain improved the response linearity and sensitivity, and the impedance of sensors decreased with longer quaternization time and shorter distance between electrode tracks
發現:疏水性單元的引入,提高了濕敏元件的響應線性度和靈敏度;季胺化時間的延長,使聚合物季胺化程度提高,濕敏元件阻抗減小;電極叉指間距增大,阻抗增大。The results show that, the process of quasi - isentropic compression on target can be seen as the successive overlap of a series of small shock loading waves generated by the transient layers. the design for flier - plates with graded wave impedance should conform to the parabolic or cubic function relationship between the impedance and the thickness
波阻抗按高冪次函數(冪次在二次至三次之間)分佈的梯度飛片能夠獲得波形較好的準等熵壓縮波,並且靶板的厚度不宜太小也不宜太大。First1y, in this paper, the testes about tensi1e resistance of masonry components in different period are processed and re1ated suppositions and formu1as are brought forward : the formu1a about maxima1 shear stress of top side in high or tier masonry bui1dings is deduced. it can be found easi1y that the factors affect ing the maxima1 shear stress are vertica1 resi stance coefficient 1oad magnitude wa11 geometry dimensions and its modu1us of e1asticity
首先,進行了不同齡期下的砌體試件抗壓力學性能試驗,提出了相關的假定和公式,推導出了縱橫墻荷載差影響下的多、高層砌體結構房屋頂層的最大剪應力公式,從中可以看出影響最大剪應力的因素有豎向阻力系數、荷載大小、墻體的幾何尺寸和墻體的彈性模量等。But due to the existence of the fault resistance, the branch current, the zero sequence mutual coupling and so on, the apparent impedances and protection scope of distance protection will change, thereby affecting the performance of distance protection and the safety operation of power system
然而,由於過渡電阻、分支電流和零序互感等因素的影響,會改變距離保護測量阻抗的大小,造成距離保護動作范圍的擴大與縮小,從而影響距離保護的性能,威脅電力系統的安全運行。Secondly this paper study the seismic wave when it crosses the interface. when the seismic wave travel from a small wave - impedance into a big wave - impedance, the energy changes with the angle between the ray and interface
當地震波從波阻抗小的介質傳播到波阻抗大的介質時,反射波的能量隨入射角度變化,在臨界角以內反射系數為實數。分享友人