Experimental results show that the attenuation of the maximum electric field value can reflect pulse electric field shielding effectiveness.
实验表明可用脉冲电场的峰值衰减量来评估屏蔽体的脉冲电场屏蔽效能。
2
An instrument for measuring ultrasonic attenuation by means of comparing the ultrasonic pulse echo with a calibrated exponential decay wave-form is described.
本装置用超声脉冲回波与定标指数波形比较的方法测量超声衰减。
3
The operating distance of a laser radar system is determined on pulse energy, pulse width, beam divergence angular, atmosphere attenuation, target reflection, receiver sensitivity and so on.