Experimental Requirements
·Simultaneously detecting cylinder and arc edge dimensions
·The test results require clear and measurable dimensions of the cylinder and arc edge, with no shadows
·Static shooting
The Effect Without Light Sources

Due to the shadow on the edge of the magnet, the edge may not be clear when illuminated. Therefore, a white circular light source was used, which uses high angle direct illumination. This way, the dimensions of the magnet's cylinder and arc edge will be clear and measurable, and there will be no shadows.
Comparison of lighting effects
The effect under indoor lighting The effect under circular light source
In Summary
·Lighting: Size inspection, no shadows allowed;
·tatic shooting;
·Try to use circular light sources as much as possible.
The general process of selecting a light source
·Understand project requirements and clarify the goals to be tested or measured.
