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Fluorescent particles, inspection device for visualizing and inspecting fluid movement/movement in the presence of fluid using fluorescent particles, and visualization of fluid movement/movement in the presence of fluid using fluorescent particles Inspection method
Fluorescent particles, inspection device for visualizing and inspecting fluid movement/movement in the presence of fluid using fluorescent particles, and visualization of fluid movement/movement in the presence of fluid using fluorescent particles Inspection method
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摘要
PROBLEM TO BE SOLVED: To provide a fluorescent particle capable of finely visualizing motion/movement of a fluid, which regularly moves in the fluid while suppressing an object around the fluid from being coated with a fluorescent material and halation generated by the object. An inspection device and an inspection method are provided. SOLUTION: The fluorescent particles are composed of a mixture containing at least one fluorescent substance and a synthetic resin, and the fluorescent substance is either ultraviolet light having a wavelength of 290 nm to 405 nm or violet visible light. Is excited to emit visible light with a peak wavelength in the range of 410 nm to 620 nm, and the fluorescent particles are distinguishable from foreign matter and/or bubbles in a fluid when irradiated with the light. Which is a substantially spherical fluorescent particle having a particle size of 100 nm to 1 mm. [Selection diagram] Figure 1
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