Based on the second-order coherence function theory, authors have studied nonlinear effects of third-and fifth-order on polarization beats in a cascade three-level system (TPBCTS and FPBCTS).
The control system can realize welding sequential control and 2 beats or 4 beats sequential control mode.
控制系统可按焊接工艺要求实现焊接工作时序控制以及二拍、四拍的时序控制方式。
3
As the computer clock is not accurate enough, the timer card also records time beats from Global Positioning System (GPS). This makes accurate timing of cosmic ray arrival feasible.