CAJ | 학술논문

基于将岩土水分转化成电信号测量的原理，研制出了一种以STM32为控制核心，以阻抗转换芯片AD5933为测量核心的32通道岩土介质水分测试仪系统。系统具有自动测量，自动校准，支持USB通讯等功能。测量实验表明，系统具有稳定可靠，测量精度高，体积小、低成本、操作简单等优点，具有很好的工程应用价值。
기우장암토수분전화성전신호측량적원리，연제출료일충이STM32위공제핵심，이조항전환심편AD5933위측량핵심적32통도암토개질수분측시의계통。계통구유자동측량，자동교준，지지USB통신등공능。측량실험표명，계통구유은정가고，측량정도고，체적소、저성본、조작간단등우점，구유흔호적공정응용개치。
Based on the measurement principle of converting soil moisture measurement into electrical signal, this paper designs a 32-channel soil moisture meter which adopts STM32 as the control core and impedance con-version chip AD5933 as the measuring core. The system has the functions of automatic control,automatic cor-rection and supporting USB communication and so on. Results show that the measuring instrument has the ad-vantages of highly integrated circuits,easy operation,and high accuracy,stable and reliable performance, which may have wide engineering applications.