Which equipment can detect the appearance scratches of auto parts?

The following are some common devices that can be used to detect the appearance scratches of automobile parts:

1. Visual inspection: visually inspect the surface of parts for visible scratches.

2. Ultraviolet detection lamp: Using ultraviolet detection lamp can help to detect tiny scratches on the surface of parts, because scratches usually produce different reflection effects.

3. Magnifier or microscope: You can observe and identify tiny scratches with a magnifying glass or microscope.

4. Infrared thermal imager: The infrared thermal imager judges whether there are scratches by detecting the thermal changes on the surface of the parts.

5. High-resolution camera: You can use a high-resolution camera to take photos of the surface of parts, and use image processing software to analyze and identify scratches.

These devices can be used to detect the appearance scratches of parts, depending on the size and details of the scratches.