| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a method of evaluating the quality of an article by measuring absorbance of a large number of light with different wavelength bands, with high accuracy in a short time, and provide a quality evaluation device lightweight and usable in a machining site insufficient in control of temperature and humidity. SOLUTION: Light from a light source lamp 2 is made to blink by a rotary disc 2c with a slit and emitted from a light source part 2. Blinking light is sent to a light projecting-receiving part 3 by an optical fiber 7 and projected on a specimen, and reflected light from the specimen received by the light projecting-receiving part 3 is sent to a light processing part 4 by the specified number of optical fibers 9. In the light processing part 4, the specified number of reflected light are respectively transmitted through band-pass filters 4a different in wavelength band to make spectral diffraction, and these light are converted into electric signals by photodiodes 4b and amplified by amplifiers 4d. The electric signals are transmitted to an analysis part to evaluate the quality of the specimen.</p> |
