Patent ID: 11891261
Assignee: TAIYUAN UNIVERSITY OF SCIENCE AND TECHNOLOGY
Field: Machine tools (Mechanical engineering)
Classification: CPC B  G | IPC B  G

Claim 3:
4. The method of claim 1, wherein in 7), calculating the vibrational amplitude of each point on the centerline of the each laser beam comprises: dividing an effective field of view of the centerline of the each laser beam into five segments by using six points, where the five segment between six points have the same length of L; leaving a length of L1 on both sides of a first point and a sixth point, where L1<0.2L; monitoring distance information of the six points in real time; supposing the vibrational amplitude of the six points as σ1, σ2, σ3, σ4, σ5, and σ6, respectively, when there is a sudden change in the distance between at least two adjacent points, a fast variable signal appears, and the sheet material is considered vibrating; calculating a line equation of two adjacent points, and estimating the vibrational amplitude of all points between the two adjacent points according to the linear equation.