The 2D computed temperature by using heat source model of double ellipsoidal Gaussian distribution gives best agreement with the measured value.

• 利用双椭圆热源分布的数值计算模型和实际检测二维温度场分布结果作为边界条件，获得了整个焊件更宽温度范围和三维温度场分布的在线模拟。