Flourescent Penetrant Testing Device

Abstract

Non-Destructive Testing (NDT) is a practice commonly used in the aviation industry to test the strength and integrity of a material or structure without destroying the test sample. One of the methods in NDT is Liquid Penetrant Inspection (LPI). Through this method, various hazardous substances are involved including the fumes from the sprays and Ultraviolet (UV) radiation from the UV lamp. These substances put the health of personnel conducting the procedure at risk. Therefore, Fluorescent Penetrant Testing Device (FPTD) has been successfully designed and developed. FPTD main goal is to mitigate the risk of exposure of the personnel to the hazardous elements, by providing enclosed designated compartments, enabling the procedures to be performed externally. FPTD is fabricated from various used materials which reduces the development cost significantly. FPTD is embedded with various sensors, controlled by UNO ESP8266 Wi-Fi Development Board to monitor the line control parameters. FPTD is also equipped with a UV light to assist the specimen inspection and a GoPro Hero 4 camera is used to conduct this process. Other than that, an exhaust fan is installed to prevent fumes build-up. Therefore, FPTD will be able to mitigate the exposure of the personnel to the hazardous elements while implementing technologies and streamline the whole inspection process. A survey regarding user satisfaction was conducted after the product demonstration. 96.7% of the respondent agrees that FPTD improves the safety of the personnel from exposure of UV light into the eyes. 93.3% of the respondent agrees that FPTD improves the safety of the personnel from exposure of UV light onto the skin, while 96.7% agrees that FPTD ensures the safety of the personnel from hazardous gas or fumes throughout the whole process. Upon experimenting the product on a TAM panel, the product is able to measure the indication with accuracy up to 98.9%, which is significantly higher that the reading obtained with naked eyes.