Since a relatively narrow bandwidth is involved, it is also likely that ac excitation also offers greater immunity to 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。
2
Discusses the separation of ac interference and DC potential, etc, during installation and commissioning of DCS systems, and the application of signal spacers to solve this kind of problems.