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- A kind of on-line device with FPGA and DSP as the core of control circuit for monitoring lightning current waveform in transmission line is introduced. 研制基于FPGA&DSP控制核心的雷电流行波在线监测装置,较为详细地论述了其工作原理、硬件结构和软件设计。
- Influence of Lightning Current Waveform on Magnetic Fields in a Building Struck by Lightning 雷电流波形对雷击建筑物时室内磁场分布的影响
- lightning current waveform 雷电流波形
- The O/P current waveform and spectrum.(9). 八、输出端电流之波形与频谱。
- The lightning current is the source of damage. 指出,雷电流是建筑物损害损的原因。
- The armature current waveform of BLDCM were analyzed. 着重分析无刷直流电动机(BLDCM)电枢电流波形。
- The maximum absolute value reached by a voltage or current waveform. 振幅电压或电流波所能达到的最大绝对值
- An abnormally high lightning current blew out many television sets in the high building. 一股超强的闪电电流烧坏了这座高层建筑内的许多电视机。
- The current waveform of Ferroelectric ceramics PZT95/5 depoling under tilted shock wave compression has been studied. 摘要研究了冲击波倾斜入射PZT95/5铁电陶瓷时的放电特性。
- The principle and construction characteristics of tape recorder for lightning current are described. 介绍所研制的磁带式雷电流记录仪的基本原理和结构特点。
- With preionization the flash-lamp current waveform becomes favorable for improving the amplifier efficiency. 尤其加预电离后,闪光灯放电电流波形发生变形有利于提高放大器效率的变化。
- The spectrum of the whole drain current waveform (Fig. 21) is presented in Fig. 23. 全部漏极电流波形产生的电磁干扰频谱(图21)呈现在图23。
- Since lightning current is conducted away through the ground, you should not lie down especially when the ground is wet. 闪电击中物体后,电流会经地面传开,因此不要躺在地上,潮湿地面尤其危险。
- If the fuze is exposed or deposited in plastic box, the high frequency electrocircuit and normal function can be destroyed by strong lightning current. 但是,如果使用塑料包装或拆除包装后,则附近的大电流雷电回击有可能造成其高频电路损坏并破坏其近炸功能。
- So PWM with higher frequence can be used to eliminate the low-frequence harmonics of bus current and reduce the distortion rate of current waveform. 因此可以采用频率更高的脉宽调制PWM脉冲,能基本上消除电网侧电流的低次谐波,减少电流波形的畸变率;
- Lightning current withstand capacity test of electronic equipment wires and fuse links in low voltage power systems is conducted in laboratory . 通过试验研究了弱电设备电气连线、制电路板及低压系统保险丝管等耐受雷电流的能力。
- Unfortunately I didn't save the current waveform but it was around 10 kA and more heavily damped then the can crushing coil. 不幸的是,我没有挽救电流波形,但它是约10家越来越重阻尼则可以压碎线圈。
- Lightning current withstand capacity test of electronic equipment wires and fuse links in low voltage power systems is conducted in laboratory. 通过试验研究了弱电设备电气连线、印制电路板及低压系统保险丝管等耐受雷电流的能力。
- A new AC pulse MIG welding process is introduced. And an outstanding welding current waveform capable of stabilizing the AC MIG welding arc is put forward. 采用自行研制的具有方框形外特性的交流脉冲MIG焊接电源 ,又设计了双凹形焊接电流波形 ,即过零前后的电流波形均为脉冲大电流 ,有利于交流脉冲MIG焊接电弧的连续稳定。
- With such model the effect of tower structure,lightning current amplitude,angle of the lightning incidence,as well as the ground angle on the shielding failure rate are analyzed. 应用改进的电气几何模型分析了输电线路杆塔结构、避雷线和导线的布置、雷电流的幅值、地面倾角对绕击率的影响。