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- lightning current meter 雷电电流计
- The lightning current is the source of damage. 指出,雷电流是建筑物损害损的原因。
- 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 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。
- A 10~(-14)A pico-ampere current meter made of integrated circuit CA3420 is presented. 用集成电路CA3420可制成10~(-14)A高灵敏微电流计。
- 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。
- 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。
- We have got the instrument (pressure gauge, thermometer, tachometer, current meter, universal meter) ready for the experiment (test). 我们已经准备好做实验(试验)的仪器(压力表、温度计、转速计、电流表、万用表)。
- 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。
- We hae got the instrument (pressure gauge, thermometer, tachometer, current meter, uniersal meter) ready for the experiment (test). 我们已经准备好做实验(试验)的仪器(压力表、温度计、转速计、电流表、万用表)。
- 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。
- 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。
- To use the elements,you should prepare the adjustable transformer or silicon controlled transformer,voltage meter,current meter and autocontrol temperature meter etc. 使用元件必须配备调压变压器或可控硅调压器及电压、电流表和温度自动控制仪表等。
- To derive the residual low frequency current velocity, one usually deploys current meter moorings over 25 hours or more to remove the diurnal and semi-diurnal tidal components. 若要得到低频流速(主要是平均流及周期大于一天的海流),通常会施放流速仪,测量海流时间超过25小时,才能将全日潮和半日潮的成分滤除而得低频流的流速。
- 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。
- According to the lightning current amplitude accumulative probability formula lgP=-I/88,the accumulative probability formulus of the lightning current gradient is obtained. 据此,根据雷电流幅值累积概率分布公式lgP=-I/88[1],反推得出浙江电网雷电流陡度的累积概率分布式。
- For the drawback of EGM theory, in correction with the simulating calculation result of the latest LSM theory, the improved calculating method and way of detour lightning current was discussed. 摘要针对EGM理论存在的缺陷,结合最新LSM理论仿真计算结果,探讨了改进绕击电流计算方法的途径。
- Electric control board control all the operation of spray drying operation, it include voltage meter, electric current meter, AC thermograph, air switch, adjusting pressure meter, control meter, etc. 喷雾干燥工艺过程的操作、控制集中在电气控制柜上进行,电控柜由电压表、电流表、空气开关、交流接触器、可控硅调压表、温度显示、控制仪表,可控硅,大功率二极关等电气元件组成。
- Spray nozzle and magneto electric transformation, which uses diaphragm valve and water steelingproof to compose integration of IC card water current meter by IC card and monolithic processor. 本文根据节水科学管理的要求,介绍一种采用双喷嘴侧射流测量机构和磁电转换的流量测量原理,利用隔膜阀控制机构和防窃水结构,由IC卡和单片机系统组成的一体化IC卡水表。
- At present, method of thermal current meter, hotbox method, infrared thermal perturbation of the external walls in China are main methods to measure the heat transfer coefficients. 现阶段,热流法、热箱法,热红外摄像仪法是我国测量外墙传热系数的主要方法。