| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method and a device for nondestructively measuring a target component concentration highly accurately by obtaining an analytical curve of highly accurate estimation without using an expensive hyperspectral camera. <P>SOLUTION: According to the near infrared spectroscopic measurement method, wavelength light within a range of wavelength 600 nm to 2500 nm or a part of the range is radiated to an object to measure, such as leaf vegetables, the transmission light is received to acquire near infrared absorption spectrums, and an analytical curve is used to nondestructively measure target component concentration of the object to measure. The method uses a near infrared shield member or absorption member provided with a through hole of a prescribed diameter to put the object to measure in it, radiates the near-infrared ray toward the through hole, and limits a radiation range to a part exposed from the through hole to improve estimation accuracy of a radiation dose line. <P>COPYRIGHT: (C)2012,JPO&INPIT |
