Discussing the influence of the electrostatic force upon the system function making good use of this electrostatic force , we can design to open - loop system and closed - loop servo system 討論了靜電力對系統(tǒng)性能的影響,合理利用靜電力可以設計出開環(huán)和閉環(huán)控制系統(tǒng)。