The following simple introductionMembrane switchAppearance inspection standard, the hope can help you!
1, the inspection methods: visual inspection (8 times the magnifying glass can be used when necessary).
2, lighting conditions: overhead lighting, brightness 500 Chrysler division.
3, visual Angle: the parts is fixed, and the level of 45 ° horizontally and the line of sight with the vertical, parts or reflection.
4, visual time: the inspection area, 0.2 seconds per 1 square inch check, check at least 5 seconds per part.
5, visual range: 45 cm.
6, check the control board: start with a white background, and then with a black background for control board to check, control board in the parts after 2.5 cm to 12 cm.