摘要
介绍一种新型玉米精播机监测装置。这种监测装置主要由光源及光电信号检测电路组成,在排种盘未进行正常排种时能发出报警信号。它与以往电子仪器式监测装置的不同点在于可以监视监测装置本身工作状况是否正常,从而提高了工作可靠性。指出了为防止装置误动作在电子线路参数选取及种子筛选方面应注意的问题。
A new monitor of J-2 type corn precision planter is introduced,which consists of light source and photoelectric signal detecting circuits.When the seed feeding device is in unnormal seeding condition,the monitor will produce warning signals.The difference of this monitor from existing monitors is that the working condition of the monitor itself is checked all the working time so that the work reli- ability is raised.In order to protect the monitor from mistaken action,some prob- lems on parameter selection of electronic circuits and seed sieving are presented.
关键词
精播机
监测装置
频谱分析
玉米
monitor of precision planter
self-detection
frequency spectrum analysis
