电子、射流控制精密排种器是根据数字式射流元件的特点设计的。其原理是由电子控制系统发出指定的电脉冲,经射流元件转换成气脉冲,用以完成精密排种。本文主要就其排种器的工作原理、工作过程进行了较为系统的论述,并初步分析了影响排种器工作性能的因素。初步试验结果表明,该排种器具有排种准确性高,播种株距调节方便,不伤种等优点。 Electronic, Jet Control Precision Metering is designed based on the characteristics of digital jet components. Its principle is issued by the electronic control system designated electrical pulse, jet components into gas pulse, to complete the precision seed. In this paper, the working principle and working process of its seed metering device are mainly discussed systematically, and the factors that affect the performance of the seed metering device are analyzed. The preliminary test results show that the seed metering device has the advantages of high accuracy of seed setting, convenient adjustment of the sown plant spacing and no injury to the seed.