基于STM32的调理电路增益分析存储系统设计

针对仪器出厂前,需要对仪器硬件进行校准的问题,提出一种调理电路增益分析存储系统.本系统采用安捷伦34410A万用表作为测量工具,以STM32作为主控制芯片,用STM32芯片自带的NAND Flash作为存储单元,下位机通过USB与PC进行通信.测试研究表明,该系统能够实现利用上位机控制安捷伦34410A万用表采集一种调理电路中各个放大器和衰减器的实际输入输出电压,进而计算其实际增益,然后把采集到的增益发送至下位机存储于Flash里面的功能.随后上位机软件通过USB把存储器里的数据读出,最终利用读出的实际增益值进行后续的校准工作.

Design of gain analysis and storage system of conditioning circuit based on STM32

Aiming at the existing problems of the need to calibrate instrument hardware before instrument delivery,presents a gain analysis and storage system of conditioning circuit.This system adopts the Agilent 34410A as measurement tool,with the STM32 as the main control chip,with STM32 built in NAND Flash chip as a storage unit. Slave computer Communicates with PC through USB protocol.Testing results indicate that the system can achieve the function of using PC control the Agilent 34410A to collect a conditioning circuit of each amplifier and attenuator in actual input and output voltage,then calculates their actual gain, last send the collected data to the Flash of STM32.The software of PC reads out the data in the memory via USB,and using the value for subsequent calibration work.