高温下紫外光能量在线检测方法与设计

目前市场上紫外光能量检测中存在辐射大、温度高、测量不便等问题。设计一种针对高温下通过光纤进行导光的紫外光能量在线检测方案。该方案将紫外光通过光纤传输至光电传感器进行光电转换处理,避免传感器高温下工作,并采用双传感器进行环境光滤除提高精度,进而采用高精度AD芯片将信号模拟量转换成数字量传输至主控制器STM32F103,经数据处理计算出相应的能量值和温度等参数,通过RS485总线传输方式进行数据传输至上位机进而实现实时监测。实验表明:整个系统运行稳定、耐高温、能够在线实时检测并分析紫外光能量变化,可广泛应用于工业自动化紫光检测领域。

On-line detection method and design of ultraviolet light energy at high temperature

At present,there are problems such as large radiation,high temperature,and inconvenient measurement in the detection of ultraviolet light energy on the market. An on-line detection scheme for ultraviolet light energy guided by an optical fiber at a high temperature is designed. The scheme transmits ultraviolet light through the optical fiber to the photoelectric sensor for photoelectric conversion processing,avoids the high temperature operation of the sensor,and uses the dual sensor to perform environmental light filtering to improve the accuracy. Then a high precision AD chip is used to convert the signal analog quantity into a digital quantity transmission to the main controller STM32F103.The corresponding parameters such as energy value and temperature are calculated after data processing,and the data is transmitted to the upper computer through the RS485 bus transmission mode to realize real-time monitoring. The experiment shows that the whole system runs stably,withstands high temperature,and can detect and analyze ultraviolet energy changes online and in real time.