研究目的
To design and develop a dedicated illumination system for high-speed digital image correlation that reduces heat buildup on the specimen and enables the use of cameras with very short shutter times.
研究成果
The developed system is a specialized tool for high-speed digital image correlation applications, with reduced heat buildup in the specimen and lower power usage than continuous illumination systems. It is capable of outputting light pulses of hundredths of nanoseconds and produces a high illuminance region of approximately 250 mm at a distance of 1 meter.
研究不足
The system's performance is influenced by factors such as the limiting resistor (R1), which affects the maximum pulse rate, startup time, and the number of systems that can be used in parallel. The LED can generate significant heat if operated continuously, requiring a heatsink with a fan for cooling.