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排种监测传感器的试验研究
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大小:282 |
2009-07-13
向日葵的花季
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提出了排种检测光电传感器的覆盖率问题, 并利用红光半导体激光二极管(RLD) 和硅光电池构造了一种高覆盖率的排种传感器。通过两片平行对置的平面镜多次反射RLD 发射出的激光束, 在排种管的检测截面形成激光束栅格。试验表明, 本传感器对不同体积的种子都有相当高的检测准确率, 可用于玉米、大豆的排种计数, 也可用于玉米、大豆、小麦、高粱等作物的排种监测。
叙词: 精密播种机 传感器 半导体激光二极管 排种监测
Abstract A seeding mon ito ring op toelect ron ic sen so r fo r p recision p lan ter w as designed u sing red laser diode (RLD) and silicon2pho tocell. Two m irro rs w ere p laced oppo site and parallel and the beam f rom RLD w as ref lected betw een the m irro rs and p roduced a laser beam grid that cou ld cover the seed tube p rof ile perfect ly. O nce a seed drop pass th rough the beam grid, the beam w ill be b lock off by the seed and a clear and st rong signal w ill be p roduced. It p roved that the sen so r had a h igh mon ito ring veracity fo rm any k inds of crop seeds. The test s indicate that it cou ld be u sed fo r ex istence detect ing and coun t ing of co rn and soybean seeds that pass th rough the p rof ile. Key words P recision seed drills, Sen so rs, V isib le laser diode, Seeding mon ito ring
叙词: 精密播种机 传感器 半导体激光二极管 排种监测
Abstract A seeding mon ito ring op toelect ron ic sen so r fo r p recision p lan ter w as designed u sing red laser diode (RLD) and silicon2pho tocell. Two m irro rs w ere p laced oppo site and parallel and the beam f rom RLD w as ref lected betw een the m irro rs and p roduced a laser beam grid that cou ld cover the seed tube p rof ile perfect ly. O nce a seed drop pass th rough the beam grid, the beam w ill be b lock off by the seed and a clear and st rong signal w ill be p roduced. It p roved that the sen so r had a h igh mon ito ring veracity fo rm any k inds of crop seeds. The test s indicate that it cou ld be u sed fo r ex istence detect ing and coun t ing of co rn and soybean seeds that pass th rough the p rof ile. Key words P recision seed drills, Sen so rs, V isib le laser diode, Seeding mon ito ring
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