한국농업기계학회:학술대회논문집 (Proceedings of the Korean Society for Agricultural Machinery Conference)
- 한국농업기계학회 1993년도 Proceedings of International Conference for Agricultural Machinery and Process Engineering
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- Pages.373-382
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- 1993
NON-CONTACT SENSORS FOR DETECTING DISTANCE FROM THE FIELD SURFACE
- Lee, Jeyong- (Laboratory of Agricultural Prime Mover, Department of Agricultural Engineering Faculty of Agriculture , Kyoto University) ;
- Minoru-Yamazaki (Laboratory of Agricultural Prime Mover, Department of Agricultural Engineering Faculty of Agriculture , Kyoto University) ;
- Akira-oida (Laboratory of Agricultural Prime Mover, Department of Agricultural Engineering Faculty of Agriculture , Kyoto University) ;
- Hiroshi-Nakashima (Laboratory of Agricultural Prime Mover, Department of Agricultural Engineering Faculty of Agriculture , Kyoto University) ;
- Hiroshi-Shimizu (Laboratory of Agricultural Prime Mover, Department of Agricultural Engineering Faculty of Agriculture , Kyoto University)
- 발행 : 1993.10.01
초록
A non-contact sensor for detecting distance from field surface to a predetermined location of a tractor will be useful to control precise height of implements such as tillage machinery, mowers etc.. An optical and an ultrasonic sensors were designed and fabricated . The indoor and outdoor experiments were conducted to obtain the static and dynamic characteristics of the two sensors at several moisture levels of four soils and on the soil surface with a designed shape. The results revealed that the optical sensor is unsuitable for soils with high moisture content but showed better detecting accuracy on the irregularity of soil surface.