When a thin plate is heated by a beam of modulated continuous laser, a temperature wave generates and propagates along the plate with amplitude decay and phase delay.
通过连续激光调制对薄板试样进行局部周期加热,采用红外扫描测温技术记录动态温度分布。
2
A power converter circuit (3) drives a switching device by the pulse-width modulatedwave for converting a direct current into the three phase alternating current.