A flame sensor for sensing the presence of a flame in a burner. The signal from the sensor is passed to an amplifier located adjacent to the sensor and amplified without having a sensor signal contaminated with common node radiation. The selectively amplified signal between 15 and 80 Hz is processed by a microcontroller located remotely from the sensor and amplifier with microcontroller may terminate or continue burner operation. The integrity of the connection circuitry between the amplifier and the microcontroller is also monitored and burner shutdown occurs if there is a fault in such circuitry.
申请公布号
WO0190651(A1)
申请公布日期
2001.11.29
申请号
WO2001CA00744
申请日期
2001.05.28
申请人
INTERNATIONAL THERMAL INVESTMENTS LTD.;MURGU, CRISTIAN;ROBINSON, EDGAR, C.