FLUORESCENT FLAW DETECTION AND DEVICE THEREFOR
PROBLEM TO BE SOLVED: To eliminate an adverse effects due to ultraviolet light, and to allow working under a light atmosphere. SOLUTION: In this flaw detection method in which a specimen is imparted beforehand with a luminescence material for flaw detection, it is irradiated with an excited light fr...
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| creator | DOMON HITOSHI |
| description | PROBLEM TO BE SOLVED: To eliminate an adverse effects due to ultraviolet light, and to allow working under a light atmosphere. SOLUTION: In this flaw detection method in which a specimen is imparted beforehand with a luminescence material for flaw detection, it is irradiated with an excited light from an exciting light source, and by which a defect of the specimen is detected based on a luminous condition of fluorescence emitted from the luminescence material excited by irradiation of the exciting light, blue light sources 17a, 17b,..., 27 emitting blue light having about 460 nm for the wavelength are used for the fluorescent exciting light source, and luminescence materials 16, 26 which are prepared by selecting a fluorescent material (a fluorescent pigment, a fluorescent dye, or the like) excited by the blue light to emit red light having about 630 nm of wavelength, and by mixing integrally the fluorescent material and an imparting medium (magnetic powder, a penetrant or the like) for imparting to the specimens 11, 21 with the fluorescent material are used for the luminescence materials. |
| format | Patent |
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| subjects | INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MEASURING PHYSICS TESTING |
| title | FLUORESCENT FLAW DETECTION AND DEVICE THEREFOR |
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