基于STM32的电声综合测试仪硬件设计  

Hardware Design of Electro-acoustic Comprehensive Measurement Instrument Based on STM32

作　　者：周静雷[1] 孙端[1] 

机构地区：[1]西安工程大学电子信息学院,西安710048

出　　处：《微处理机》2017年第2期77-81,共5页Microprocessors

摘　　要：介绍了电声测试的基本原理,提出一种基于STM32微处理器的电声综合测试仪具体硬件设计方案,并给出了该仪器下位机软件的运行流程。该测试仪有多组测量端口,具备测试扬声器、传声器、分频器、功率放大器等电声器件及电声设备的功能,并且测试仪通过USB端口与计算机进行通信,在测试过程中可以使用上位机软件控制电路模态。经过实践检验,该电声综合测试仪能够满足设计需求,并且使用方便可靠,可以显著提高电声综合测试的效率。The basic theory of electro-acoustic measurement, a specific hardware design scheme of electro-acoustic comprehensive measurement instrument based on the STM32 microprocessor, and the running process of lower computer are proposed in this paper. It has abundant measurement ports for measuring electro-acoustic devices such as speaker, microphone, frequency divide and amplifier. This instrument communicates with PC by USB port and is controlled by upper computer to change c ircu it pattern during testing. After practical test, this electro -acoustic comprehensive measurement instru - ment, which is convenient and reliable, can meet the design requirements, and improve the efficiency of electro-acoustic comprehensive measurement obviously.

关 键 词：电声测试 硬件设计 微处理器 USB通讯 频率合成芯片 仪器校准 

分 类 号：TP368.1[自动化与计算机技术—计算机系统结构] TB516[自动化与计算机技术—计算机科学与技术]