基于labview上位机的虚拟电压表设计

上传者: kai_locust | 上传时间: 2021-05-18 19:35:12 | 文件大小: 9.32MB | 文件类型: ZIP
智能化的虚拟电压采集、测量、监控系统是采用数字化测量技术, 把连续的量(输入电压)转换成不连续、离散的数字化形式并加以显示的系统。作为现代电子测量中最基础与核心的一种系统, 对其测量精度和功能要求也越来越高。由于电压测量范围广,特别是在微电压、高电压及待测信号强弱相差极大情况下, 既要保证弱信号测量精度又要兼顾强信号的测量范围, 传统的手动转换量程的电压表在测量技术上有一定难度;同时,若量程选择不当,不但会造成测量精度下降甚至损坏仪表。基于此,本次课程设计提出具有16 位分辨率,以单片机作为测量的主控制器,采用A/D转换信号处理技术自适应调整放大器放大倍数实现全量程无档电压表的电路设计。

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