Method for measuring aperture ratio of diamond-shaped hole lightning protection copper net

The invention belongs to the field of helicopter skins, and particularly relates to a method for measuring the aperture ratio of a diamond-shaped hole lightning protection copper net. The diamond-shaped hole pure copper net has the advantages of being easy to process, good in conductivity and the like, so that the surface of the composite material has excellent lightning protection capability, and the all-weather combat performance of the helicopter is guaranteed. For the gram weight and the conductivity of the copper net, the aperture ratio of the diamond-shaped hole pure copper net is an important parameter. The diamond-shaped hole pure copper net is formed by adopting an extension cutting technology and applying a sharp diamond-shaped mold to carry out clean and neat impact cutting on copper foil, and the production process is simple and efficient and is suitable for large-scale industrial production. If other hole shapes are adopted, an extension cutting technology is adopted, notches are relatively uncle