Flame detector with UV sensor
    3.
    发明授权
    Flame detector with UV sensor 失效
    火焰探测器与紫外线传感器

    公开(公告)号:US07244946B2

    公开(公告)日:2007-07-17

    申请号:US11123872

    申请日:2005-05-06

    IPC分类号: G01J1/42

    CPC分类号: G01J1/46 G01J1/429 G08B17/12

    摘要: A flame detector system includes an ultraviolet sensor to detect ultraviolet radiation, and a microcontroller coupled to the ultraviolet sensor. The microcontroller processes output from the ultraviolet sensor to identify a flame. The system can also include a HV supply circuit to constantly refresh a drive voltage of the sensor. The microcontroller can sense when the sensor discharges and thereupon immediately refresh the sensor. The microcontroller can also monitor a run time for the sensor and adjust a drive voltage for the sensor accordingly. Further, a background count can be monitored to determine the health of the sensor. A memory can also be provided to store data associated with the detector, and a communications module can communicate the data stored in the memory to an external device. The microcontroller calculates a filtered event count and compares the filtered event count to a threshold to determine if a flame is present.

    摘要翻译: 火焰检测器系统包括用于检测紫外线辐射的紫外线传感器和耦合到紫外线传感器的微控制器。 微控制器处理紫外线传感器的输出以识别火焰。 该系统还可以包括用于不断刷新传感器的驱动电压的HV供电电路。 微控制器可以感测传感器何时放电并随后立即刷新传感器。 微控制器还可以监控传感器的运行时间,并相应地调整传感器的驱动电压。 此外,可以监视背景计数以确定传感器的健康状况。 还可以提供存储器来存储与检测器相关联的数据,并且通信模块可以将存储在存储器中的数据传送到外部设备。 微控制器计算滤波的事件计数,并将过滤的事件计数与阈值进行比较,以确定是否存在火焰。