According to smallsignaltheory of automation theory, arc of low current TIG welding can be considered as a linear system.
依据自动控制理论中的小信号理论,小电流TIG焊的电弧具有线性系统的特征。
2
The negative resistance and the noise performances are calculated by means of smallsignaltheory. The large-signal performances are also approximately described.
本文用小信号理论计算了其负阻和噪声性能,并进行了大信号性能的近似分析。
3
Discrepancies which have long existed between theory and practice concerning the prediction of dynamic instability of a VSI drive by the smallsignaltheory are resolved.