水田高茬秸秆旋耕埋覆装置功耗测试方法

摘要

In order to detect real-time power consumption of high stubble buried device in paddy field based on virtual instrument and principles of phase difference, power consumption testing system of high stubble buried device in paddy field was developed. By using the correlation method, FFT method and zero-crossing method of data processing methods to compile program, then the system was calibrated on the experiment bench. The results showed that the system based on the correlation method had the best accuracy, stability and linearity, and its error was lower than 4.5％. It can meet the requirement of agricultural machine field experiment.%为了检测水田高茬秸秆旋耕埋覆装置实时功耗,该文基于虚拟仪器技术和相位差原理,对适用于水田高茬秸秆翻埋装置作业功耗检测的测试系统进行了研究,分别使用相关法、FFT法、过零法3种数据处理方法编写了检测程序,并在试验台架上对测试系统进行了标定.结果显示:基于相关法的测试系统精度、稳定性和线性等指标均最高,对功耗的测量误差在4.5%以内,满足农业机械田间功耗检测要求.