ON-LINE INTERNAL QUALITY EXAMINING METHOD AND DEVICE

摘要

To provide a method and an apparatus for inspecting, in a non-destructive manner, internal qualities such as diseases and defects and physiological defects, which cannot be seen in an appearance, along with measurement of taste component values such as a sugar degree and an acid degree of fruits, which are agricultural products. An object is conveyed by conveying means that has a transmitted light path piercing in the vertical direction in the center thereof and is provided with a seat adhering to an object in an annular shape, with a predetermined position on a conveyance path set as an inspection position, a light shielding cylinder, which vertically lowers to, adheres to, and covers an upper part of the object, is advanced synchronously with the object, and beams are projected toward the object from both left and right sides using small lamps. Upper condensing means for condensing transmitted light through the light shielding cylinder downward over the inspection position and upper spectroscopic means connected to the upper condensing means by an optical fiber are provided. Lower condensing means for condensing transmitted light upward below a transmitted light exit of the seat and lower spectroscopic means connected to the lower side condensing means by an optical fiber are provided. An analyzer that subjects spectroscopic spectrum data SA obtained from the upper side spectroscopic means and spectroscopic spectrum SB obtained from the lower side spectroscopic means to spectrum analysis, respectively, and calculates taste component values such as a sugar degree and an acid degree from the upper and the lower spectrum and detects various physiological defects and diseases and defects to output a defect degree is provided.