| 摘要 |
PURPOSE:To correct a water content value in consideration of the return of the water content value after the stop of drying by finding a simple mean water content value including measurement data on unriped rice and an effective grain mean water content value excluding the measurement data on the unriped rice. CONSTITUTION:This instrument drives a moisture meter 20 by a simple mean water content value calculating means A to measure the water content of plural grains, one by one, and then average all measurement data, thereby finding the simple mean water content value. This simple mean water content value contains measurement data on the unriped rice which contains much water. An effective grain mean water content value calculating means B, on the other hand, compares the respective measurement data obtained by the moisture meter 20 with a preset specified value and averages measurement data below the specified value to find the effective grain mean water content value. Then a water value difference calculating means C finds the water content value difference from the simple mean water content value and effective grain mean water content value. Then an effective grain mean water content value correcting means E corrects the effective grain mean water content value obtained by the calculating means B according to the water content value difference found by the calculating means C.
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