船电技术2026，Vol.46Issue(1)：38-43,6.
基于交直流电识别与用电器分析的简易功率计
A Simple Power Meter Based on AC/DC Identification and Electrical Appliance Analysis
毕涛 1张大为 1刘迪 1王成刚1
作者信息
- 1. 海军航空大学 航空基础学院,山东 烟台 264001
- 折叠
摘要
Abstract
When overhauling circuits,in order to rapidly identify the type of faulty electrical appliances,determine the power consumption types of the affected circuit,and measure electrical parameters,a simple power meter was designed using the STC12 microcontroller.Through AC/DC voltage and current sampling circuits,programmable amplifiers,and signal conditioning circuits,it can automatically identify the circuit's power consumption type and impedance characteristics while measuring electrical parameters.By applying Fourier transform-based current frequency domain analysis,the amplitude and phase of each harmonic component in the electrical appliance's current are obtained.This enables identification of the appliance type and determination of whether a fault has occurred.It can record the electrical characteristic parameters of appliances to complete a learning function.Testing confirms this device delivers accurate measurements at low cost,with all performance metrics meeting design specifications.关键词
交直流电压电流采样电路/信号调理电路/程控放大器/傅里叶频域分析/阻抗性质Key words
AC/DC voltage and current sampling circuit/Signal conditioning circuit/Fourier transform/Programmable amplifier/impedance property分类
信息技术与安全科学引用本文复制引用
毕涛,张大为,刘迪,王成刚..基于交直流电识别与用电器分析的简易功率计[J].船电技术,2026,46(1):38-43,6.
