【摘要】 介绍了以工业控制计算机为核心的电能质量分析仪,阐述了仪器的工作原理和设计要点。软件上利用LabWindows/CVI强大的虚拟仪器设计能力,算法上采用了高精度的加窗插值FFT的处理方法。该分析仪具有精确度高、工作稳定、抗干扰能力强的特点。更多还原

【Abstract】 In this paper the development of power line harmonic analyzer based on ind us-trial PC is introduced ,and the working principle and design method are given.Utilizing the power ful virtual instrument designing performance of LabWindows/CVI ,the software algo-rithm uses FFT with high accuracy by using windows and interpolation method.The ana-lyzer works well in the field and displays good c haracteristics of anti-interference.更多还原