查询词典 impedance

In addition, the method of impedance matrix prestorage for composite structures is presented, which largely saves the time of repeatedly computing impedance elements, and the required memory is formulated.

论文对各种类型的时间基函数进行了评估，比较了它们所包含的高频分量；提出了用于金属/介质混合问题的阻抗矩阵预存储的方法，并给出了所需存储空间的计算公式，该方法大大节省了阻抗元素重复计算的时间。

The waveforms of blood flow and pressure in time domain were translated into powers spectral of input impedance in frequency domain for pulsative index,resistance and charecteristic impedance of umbilical artery.

用快速傅里叶转换的方法把血压和血流波形的时域信号转换为输入阻抗的频域图谱，计算脐动脉阻力、阻抗和搏动指数。

To measure the impedance spectra of blood, observe the impedance spectra of different haematocrit

测量血液从100Hz～10MHz的复阻抗频谱，并采用自身血浆稀释的方法配制得到血细胞压积不同的血液（血浆与原血液比分别为：2/8，2.5/7.5，3/7，4/6，5/5），并分别测量它们的复阻抗频谱特性

Taking the particularity of the connection scheme of novel converter transformer and its filter system into account, it's necessary to find out the relation between its commutated reactance and short-circuit impedances between windings and fundament frequency impedance of filter branch for impedance design of novel converter transformer and reactive power ...

考虑到新型换流变压器及其滤波系统的接线方案较为特殊，了解其换相电抗与绕组之间的短路阻抗及阀侧滤波支路的基频阻抗之间的关系，对新型换流变压器的阻抗设计和阀侧无功补偿度的优化配置是十分必要的。

Detect and Measure Impedance Mismatches Robert demystifies the topic of time domain reflectometry, which enables you to detect, measure, and locate any impedance mismatch in a transmission line.

Robert使得时域反射仪这一课题不再神秘，它能够帮助您检测，测量以及找出任何阻抗不匹配的输电线路。

The method of miniaturing dielectric coaxial resonators was described. The structer of step-impedance can effectively reduce the length of a dielectric coaxial resonator, each length of a step-impedance coaxial resonator is usually calculated by solving resonatant condition equation, which is complicated.

阶梯阻抗结构可以有效地降低同轴谐振器的高度，阶梯阻抗同轴谐振器的各段长度一般是通过求解谐振条件方程式来确定，计算过程整琐。

Last, Nano Indenter XP was used to measure the mechanical properties of the fabricated probe structures, the results show that the spring constants of cantilever type and simply supported beam type probe structures were 2556 Nm-1 and 26280 Nm-1 respectively, which were close to the designed values of 2838 Nm-1 and 23935 Nm-1 with the error of 9.94% and 8.92%. DC probes and HP 4194A Impedance/Gain-phase Analyzer were adopted to measure the electrical properties of the simply supported beam probe card. The contact resistance from the probe tip to the end of stripline was 0.6Ω. In the frequency range of 5 to 40 MHz, the characterized impedance between two probes was larger than 20 kΩ, and the capacitance was from 0.17 pF to 0.27 pF.

采用Nano Indenter XP纳米压痕仪对制备后的探卡结构进行力学性能测试，测得悬臂梁和简支梁的弹簧常数分别为2556 Nm-1和26280 Nm-1，与2838Nm-1和23935 Nm-1的理论设计值相差9.94%和8.92%；采用直流探针和HP 4194A阻抗分析仪对简支梁型探卡结构进行了电学性能测试，从简支梁探针到引线末端的直流接触电阻为0.6Ω，在5-40 MHz范围内，探针间特征阻抗大于20 kΩ，电容在0.17 pF至0.27 pF之间，测试结果表明探针的接触电阻小、射频隔离性能好。2。

Put another way, the capacitor's impedance goes down with increasng frequencies, so it starts cutting the gain of the stage when the impedance of the capacitor is equal to the resistance of the 51K resistor plus the setting of the drive control.

换句话说，电容器的阻抗走低与increasng频率所以开始切削增益的阶段时，阻抗的电容相等的阻力的51k电阻加定传动控制。

The NLAS4599 selects the digital or analog detector output, presenting very low impedance to the driver amplifier for the selected device and very high impedance to the deselected device.

在NLAS4599选择数字或模拟探测器输出，呈现非常低的阻抗为选定的设备和非常高的阻抗取消选定设备的驱动放大器。

Impedance analytical method is presented, through which we analyze some factors that alter testing coil impedance's value.

阐述了阻抗分析法，并用其分析了影响检测线圈阻抗变化的几个因素。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了