动态电容 meaning in Chinese
dynamic capacity
Examples
- Measurement of quartz crystal unit parameters - phase offset method for measurement of motional capacitance of quartz crystal units
石英晶体元件参数的测定.第2部分:用相位偏离法测量石英晶体单元的动态电容 - Measurement of quartz crystal unit parameters by zero phase technique in a - network ; part 2 : phase offset method for measurement of motional capacitance of quartz crystal units
用型网络的零相位技术测量石英谐振器参数.第2部分:测量石英谐振器的动态电容的相位偏离法 - Measurement of quartz crystal unit parameters by zero phase technique in a pi - network - part 2 : phase offset method for measurement of motional capacitance of quartz crystal units
用型网络的零相位法测量石英晶体器件参数.第2部分:石英晶体器件动态电容测量的相位补偿法 - The system can generate sweep frequency signal with frequency range from 100khz to 150mhz and power range from - 40dbm to + 18dbm , and measure the gain and phase of the crystal . according to the gain and phase information and the iec - 444 standard , crystal parameters can be calculated , such as nominal frequency , series resistance , shunt capacitance , motion capacitance , motion inductance , q factor and so on
该系统能产生频率范围达100khz 150mhz ，功率范围为? 40dbm + 18dbm的扫频信号，并能对晶振的增益和相位差进行测量，其测量结果按照iec - 444晶振测量标准进行实时处理和计算，从而得到晶振的串联谐振频率、并联谐振频率、等效电阻、静态电容、动态电容、动态电感和品质因数等主要电参数。 - A fem software as an important tool , work has been done as follows : the method using fem to design anomalous structure of transducers was adopted ; the vibration modes of the elastic pipe , ultrasonic transducers and system has been analyzed in piezoelectric coupled field . resonant frequencies of the transducers have been matched quite well with resonant frequencies of pipe , which can make it easy and accurate to design a transducer . the values of equivalent dynamic capacitors and dynamic inductances of ahead nine orders have been gotten derived by fem method , and fem equivalent circuit of the transducers has been built
以ansys有限元软件为主要分析工具完成了设计工作;在经典换能器设计理论和前人经验的基础上,对不规则形状的换能器采用了有限元的方法设计;在耦合场中分析了换能器、导管及整体装置的振动情况,使换能器的谐振频率与导管的谐振频率达到了较好的匹配,使设计变得更加容易和准确;利用有限元方法建立了振子的等效电路模型,求出了其前6阶模态的等效动态电容电感值,为阻抗匹配和驱动电路的设计提供了依据。