| 摘要 |
<p>PURPOSE:To improve accuracy of moisture measurement by detecting the surface height of a granule by an ultrasonic range finder and correcting a variation of an infrared irradiation distance. CONSTITUTION:The moisture measurement of the granule 1 conveyed by a belt conveyor 2 is performed by irradiating the infrared rays 4 from an infrared absorbent moisture meter sensor part 3 on the surface of the granule 1. Further, the variation of the height of the granule 1 is detected by emitting the ultrasonic waves 6 from the ultrasonic range finder 5. The height of the granule 1 varies according to a variation of loadage and a large amount of variance takes place in a measured value of the moisture meter 3. Then, the moisture measurement is performed with extremely high accuracy by correcting the variance using the distance detected by the range finder 5. Further, since the granule on the belt conveyor is not flattened with a scraper, the scattering of the granule is prevented.</p> |
