微型化大气电场检测仪的设计  

Design of Miniaturized Atmospheric Electric Field Detector

作　　者：周继威[1] 唐慧强[1] 白雪美 李祺 

机构地区：[1]南京信息工程大学信息与控制学院,江苏南京210044

出　　处：《气象科技》2017年第5期825-828,共4页Meteorological Science and Technology

摘　　要：针对目前电场检测仪体积大,成本高,操作复杂等问题,研制了一套微型化大气电场检测仪系统。该系统以电容作为传感器感知单元,两相四线步进电机作为传感器感知单元转动的载体,使用含内置A/D转换的STC12LE2052AD单片机进行数据采集,简化了电路的设计。无线蓝牙模块与数据采集系统相结合实现了实时显示的功能,最后将接收到的数据通过上位机显示出来。硬件部分设计了信号的放大滤波电路、A/D转换电路及数据采集与处理电路。利用MATLAB仿真,C语言编程,调试结果表明各项功能符合设计要求,并获得了误差小于4%的高精度测量结果。For solve the problems of large volume, high cost, complex operation and other issues of the current electric field detectors, a miniaturization atmospheric electric field monitor system is developed. The system uses a capacitance as a sensor sensing unit, a two-phase four wire stepper motor as a sensor detects unit, and STClgLE2052AD SCM （Single Chip Microcomputer） with a built-in A/D converter to collect data; in this way, the circuit is simplified. Combining the Bluetooth module and the data acquisition system can realize the real-time display function, and the data can he seen in the host computer. The hardware circuit includes the amplification filter circuit, A/D convert circuit, and data acquisition and processing circuit. By MATLAB simulation and C language programming, the experimental results show that the system can meet the requirements of actual measurements, with the measuring error less than 4 %.

关 键 词：电场检测 微型化 电容 无线蓝牙 

分 类 号：TH765[机械工程—仪器科学与技术]