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.
申请公布号
WO2005111556(A2)
申请公布日期
2005.11.24
申请号
WO2005US16024
申请日期
2005.05.06
申请人
WALTER KIDDE PORTABLE EQUIPMENT, INC.;BURNETTE, STANLEY, D.;BUCHHOLZ, MATTHEW, J.;KWOR, RICHARD;MOTT, KENNETH, J.
发明人
BURNETTE, STANLEY, D.;BUCHHOLZ, MATTHEW, J.;KWOR, RICHARD;MOTT, KENNETH, J.