Design and application of a digital array high-speed camera system

作者：Liu, Wei; Yao, Xuefeng^*; Ma, Yinji; Yuan, Yanan

来源：Optics and Lasers in Engineering, 2016, 78: 148-154.

DOI：10.1016/j.optlaseng.2015.10.012

• Digital array high-speed camera
• Optical imaging
• Optical parallax
• Dynamic caustics
• Dynamic fracture

In this paper, a digital array high-speed camera system is designed and applied in dynamic fracture experiment. First, the design scheme for 3*3 array digital high-speed camera system is presented, including 3*3 array light emitting diode (LED) light source unit, 3*3 array charge coupled device (CCD) camera unit, timing delay control unit, optical imaging unit and impact loading unit. Second, the influence of geometric optical parameters on optical parallax is analyzed based on the geometric optical imaging mechanism. Finally, combining the method of dynamic caustics with the digital high-speed camera system, the dynamic fracture behavior of crack initiation and propagation in PMMA specimen under low-speed impact is investigated to verify the feasibility of the high-speed camera system.

• 出版日期2016-3
• 单位清华大学