1989 Volume 51 Issue 6 Pages 55-62
The measuring accuracy of the moisture content detector that was developed as the control of circulation type dryer for rice and barley was influenced by grain properties and dry conditions. However, its primary factor is not made clear. In this paper, it was investigated that the effect of the properties, such as the mixing rate of immature rough rice, the fertilization quantity in paddy, the kinds of rice, the tissue structure of rough rice and the stability state of moisture, on the measuring accuracy of several moisture content detectors with each measuring methods. The results were as follows.
The meter readings of detectors were high with an increase in the mixing rate of immature rough rices because of its low resistance of high-frequency. The meter readings were scattered by kinds of rough rice for the reason that their husks had each individual electric characteristic. The lower the using frequency was, the more the meter readings were affected by the internal moisture incline of a grain. Meanwhile, the fertilization quantity in paddy had no effect on the meter readings of detector
