crystal parameter meaning in Chinese
晶格参数
晶体参数
Examples
- After bamgal10o17 doped with sr , ca , the cell volume of each doped phosphors is shrunk and the crystal parameter c is decreased
掺杂少量的sr ， ca后，所得的荧光粉的晶格参数c变小，晶胞体积也随之变小。 - On the other hand , the reflective liquid crystal working mode is calculated . according to the switching ability of the lclv , a suitable working point was selected in the liquid crystal parameter space
在液晶工作模式方面，计算了反射式液晶器件的参数空间，并选择了适合cds - cdse光阀的液晶工作模式。 - The investigation of structure by x - ray diffraction shows that crystal parameters changes clearly when percenting ca and la into pbtio _ 3 , it was caused by the ca ion and la ion replaced the pb ion of a position in perovskite compound , that bring lattice mismatch and asymmetrical replace
在pbtio _ 3中掺入la和ca可以有效改变薄膜的晶格常数,这是因为在abo _ 3型化合物中,钙离子、镧离子取代了a位的铅离子,造成晶格失配和不对称取代。 - 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。 - In the paper , the design of the real - time test system for crystal parameters is presented . the signal generator of sweep frequency based on dds device ad9852 , the signal measuring circuit based on gain and phase detector ad8302 , and the real - time control and deal circuit based on tms320vc5416 and the design of high - speed printed digital & analog circuit board are discussed in details
本文阐述了晶振实时测量系统的设计，介绍了以dds芯片ad9852为核心的扫频信号源电路，以增益相位检测器ad8302为核心的信号检测电路，以dsp芯片tms320vc5416为核心的实时控制与运算电路，以及高速数模混合电路板的设计方法。