The application of LED UV-A lamp is more and more common.Its performance indicators are quite different from the high-pressure mercury vapor arc lamp,and the improper application will directly lead to the missing inspection of defects.Based on the performance index of the UV-A lamp,its use characteristics were discussed so as to facilitate the cor-rect use of the UV-A lamp by technicians.The contents included the production certificate of the UV-A lamp,the integrity and cleanliness of the filter and the inspection method,the radiation intensity of the UV-A lamp,the leakage of the white light of the UV-A lamp,the minimum working distance,the effectiveness of the LED lamp bead work.The requirements and test methods of the UV-A lamp were analyzed in details in order to guide the inspectors to correctly grasp its use charac-teristics and test requirements.This study was conducive to the correct implementation of the detection,which could ensure the reliability of the defect detection results.
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