基于虚拟仪器的排种器性能检测技术

Testing Technique of Precise Seed-metering Device Based on Virtual Instrument

以Lab VIEW为开发平台,建立了精密排种器漏播虚拟仪器检测系统。通过对检测系统的标定和所测粒距样本的试验结果分析,得出了排种器的合格指数、重播指数、漏播指数、标准差及变异系数等排种指标,验证了检测系统的可靠性和准确性。

The precise seed-metering virtual instrument （VI） testing system was designed according to the VI design idea, using electro-optical sensor and VI. The seed-metering quality indexes, such as qualified rate, resowing rate, seeding absence rate, standard deviation and coefficient of variation had been obtained from marking the system and analyzing the grain distance of sample testing result. The reliability and accuracy of system had been validated.