基于STM32F407波形类型识别及参数测量装置的设计

Design of Waveform Type Recognition and Parameter Measurement Device Based on STM32F407

本装置以STM32F407为核心实现对周期信号的波形识别及参数测量,装置由核心计算模块、按键、显示器、信号调理电路和频率检测电路组成,能够实现对周期信号的多通道增益采样,波形的峰峰值、频率等参数的测量,正弦波、方波及三角波等波形类型的识别。本系统通过多增益信号调理电路实现了对宽范围电压的精确测量,使用硬件过零点电路实现了对频率的精确测量,用频率测算出采样频率实现实时波形采集,通过信号变化率的方式实现了对波形类型的识别,具有电压和频率测量范围广、测量精度高、波形识别精确、响应速度快的优点。

This device uses STM32F407 as the core to achieve waveform recognition and parameter measurement of periodic signals.The device consists of a core calculation module,buttons,display,signal conditioning circuit,and zero crossing detection circuit.It can achieve multi-channel gain sampling of periodic signals,measure parameters such as peak to peak value and frequency of waveforms,and identify waveform types such as sine waves,square waves,and triangular waves.This system achieves precise measurement of a wide range of voltage through a multi gain signal conditioning circuit,precise measurement of frequency through a hardware zero crossing circuit,real-time waveform acquisition through frequency calculation of sampling frequency,and recognition of waveform types through model matching.It has the advantages of wide voltage and frequency measurement range,high measurement accuracy,accurate waveform recognition,and fast response speed.