防雷装置特征参数检测仪的设计

The design of lightning protection devices'characteristic parameter detectors

建筑的防雷验收和年度巡检是建筑安全渡过雷电灾害的重要保障,而测量现场往往需要测量多种参数.为此,设计了以STM32单片机为核心,能够测量接地电压、接地电阻、土壤电阻率以及浪涌保护器的防雷装置特征参数检测仪.仪器采用异频激励电源和数字滤波技术提高了测量精度,并优化电路结构减小了仪器体积.实际应用结果表明,该装置能够准确检测各项参数,具有操作简单、稳定准确、易携带等特点,从而可以减轻测量人员的负担并提高工作效率.

The detection and inspection of lightning protection systems are important to ensure constructions to survive lightning disasters. In a measuring project, various parameters are always included. For this reason, a detector of the characteristic parameters of lightning protection based on STM32 microchips was designed which realized the measurement of grounding voltage, grounding resistance, soil resistivity and surge protective devices. The detector adopted the different frequency current and the digital filtering technique to improve the accuracy of measurement; and the circuit structure was optimized to reduce the volume of the instrument. The results of practical applications show that the detector can measure the parameters accurately with such characteristics as simple in operation, stable and accurate, and easy to carry and thus reduce the burden of personnel and improve their work efficiency.