| 摘要 |
PURPOSE:To exactly know the generated at the time of raw unhulled rice by drawing sample unhulled rice from the raw unhulled rice, immersing the same in a dilute iodine liquid to color the unhulled rice, then detecting the colorless grains and colored grains after rice-hulling by a color sensor. CONSTITUTION:The sample unhulled rice drawn from the raw unhulled rice is immersed in the dilute iodine liquid 2. The raw unhulled rice colored in such a manner is passed through a drying and adjusting process (b) where the rice-hulling and air separation by a test dryer 4 and test huller 5 of a calibration device A and the screening and removing of the incomplete grains by a test rice selector 6 are executed. Then, the raw unhulled rice past the unhulled rice coloring process (a) is non-defective unpolished rice consisting of colorless grains. The grains with their ridges completely missing which are the chipped grains are colored grains. The half-husked grains are half-colored and half-colorless grains. These are subjected to a chipping ratio detecting process (c) using a chipping ratio detector B by which the non-defective unpolished rice (colorless grains) and the chipped grains (colored grains and half-colored half-colorless grains) are detected and the chipping ratio is calculated. The chipping ratio already generated at the time of the raw unhulled rice is thereby exactly detected.
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