三维机器视觉测量堆叠的 EV 电池片的高度
封装时，软包电池在棱柱形外壳中堆叠。这些电池需要堆叠均匀且完美对齐，然后才能作为 EV 电池正常工作。为此，必须使用 3D 激光位移传感器测量放入模块外壳中的铝袋之间的高度差，以确认它们彼此齐平。这需要精确地测量关键尺寸。
To verify dimensions, two Cognex DS1000 3D sensors travel along the top of the case, generating a profile in x and z. By measuring and comparing z-dimensions, the sensors can detect any difference in height between the cell sheets. The sensors also compute the gap width between the two vertical edges (x dimension), to ensure it falls within an established tolerance. Precise measurements can also be exported, along with profile data, for quality management and process control to tune the automation equipment upstream.