基于STM32的拾振器自校准系统设计  

Design of Self-calibration System for Vibration Pickup Based on STM32

作　　者：陈红江 方翠 曹雄恒 陈明 CHEN Hongjiang;FANG Cui;CAO Xiongheng;CHEN Ming(Hunan Institute of Metrology and Test,Changsha 410014,China;China Jiliang University,Hangzhou 310018,China)

机构地区：[1]湖南省计量检测研究院,长沙410014 [2]中国计量大学,杭州310018

出　　处：《计量技术》2020年第6期25-29,共5页Measurement Technique

基　　金：国家质量基础的共性技术研究与应用专项(2017YFF0205003);湖南省科技创新计划资助(2018XK2008)。

摘　　要：以STM32单片机最小系统作为主控板,采用模块化设计方案,由激励信号、采集信号、通讯等模块组成一个伺服式拾振器的自校准系统。激励信号模块由可编程波形发生器AD9833产生正弦波信号,从而激励拾振器;采集信号模块由24位的高精度模数转换器ADS1256采集拾振器输出的模拟信号;通讯模块通过MAX3232与上位机进行通讯。In this paper,a servo-type self-calibration system for vibration pickup is developed by using the STM32 single chip microcomputer as the main control board,with the adoption of modular design scheme. The self-calibration system is composed of several modules,including but not limited to excitation signal module,acquisition signal module,communication module. The excitation signal module generates a sine wave signal to excite the vibration pickup by a programmable waveform generator AD9833. The acquisition signal module is composed of a 24-bit high-precision analog-to-digital converter ADS1256 to acquire the analog signal output from the vibration pickup. The communication module communicates with the upper computer through MAX3232.

关 键 词：单片机 波形发生器 采集信号 拾振器 

分 类 号：TP368.1[自动化与计算机技术—计算机系统结构] TP212[自动化与计算机技术—计算机科学与技术]