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This paper introduced a high-precision high-voltage electrostatic generator which utilized STM32F103 as the main controller.The hardware and software design of the system were detailed.The full use of ample on-chip resources of STM32F103,such as ADC and the PWM output of timer,contributed to the small size and low cost of the system.The 16-bit PWM signals,generated by the timer on chip,served to adjust the output voltage accurately.The touch screen was responsible for the setting and display of output voltage,and the friendly human-computer interaction was built.Experimental results indicated that this high-voltage static generator was of high precision and great practicability for application. 相似文献
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针对大变比设备、电铁供电线路等特殊工况下六角图试验存在的耗时长、效率低等难题,提出了一种对热备用线路空载容性微电流精确测量取代实际用电负荷完成六角图试验的解决方案,研制了一款简单实用的新型微电流采集放大装置。该装置主要由电流采集放大线圈、放大档位切换压板和接口过压保护元件等组成,利用法拉第电磁感应定律,对热备用线路固有的空载容性微电流进行采集放大和精确测量,即可高效完成六角图试验工作。该装置还具备接口过压告警指示和保护双重功能,有效防止电流二次回路开路产生高压危害人身和设备安全。 相似文献
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