Online automatic optical detection method for circuit board production

• Main Authors: HUANG RUYONG, LIANG YONG'AN, ZHANG FEI
• Format: Patent
• Language: Chinese; English
• Published: 21.09.2021
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

The invention discloses an online automatic optical detection method for circuit board production, and belongs to the technical field of circuit board detection. According to the method, optical image detection and line laser scanning detection are adopted. The method comprises the steps of equipment construction, clamping detection, image splicing and image combination, image preprocessing analysis and matching analysis. The method is characterized in that a laser detection method is added on the basis of traditional image detection. Compared with traditional image detection, laser detection has the advantages of high environment adaptability and higher detection precision. A laser sensor is used for detecting some small parts, so that non-contact remote measurement can be realized, the speed is high, the precision is high, the measuring range is large, and the light and electric interference resistance is high; an optical imaging device is combined with line laser detection, a complete circuit board image c