采用FPGA控制技术实现了改进型pwm灰度调制，减少了FED图像灰阶损失，提高了图像显示质量。
The FPGA technology was used to achieve an improved control of grayscale PWM modulation. It can reduce the loss of FED grayscale images and improve image display quality.
虽然串联喷嘴阻力损失的增加，使射流平均能量有所降低，但射流的瞬时能量得到了调制，激励出更大的流体振荡。
Although the resistance force increase of series nozzles makes the average energy of jet flow decreased but it lets the instantaneous energy modulated to impel more fluid resonances.
脉宽调制技术是用来降低总功率交付给了负荷，没有造成损失，这是通常发生时，电源是有限的，由电阻芫件。
Pulse width modulation is used to reduce the total power delivered to a load without resulting in loss which normally occurs when a power source is limited by a resistive element.
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