Comparing with the existing charge-retention driving circuit, it has the merits of simplified structure, shorter common conduction time, better immunitytointerference and reduced driving loss.
Since a relatively narrow bandwidth is involved, it is also likely that ac excitation also offers greater immunityto rf interference than dc excitation.
因为包含相对地狭窄的带宽，并且是可能的交流励磁为射频干涉并且提供比较伟大的安全性直流励磁。
3
These two methods can be used easily, safely with good immunityto electromagnetic interference, therefore, they are suitable for on site testing and on line monitoring.