The present invention generally relates to combustion monitoring systems, and deals more particularly with a device implemented {HEAD ~ method} for monitoring the accumulation of unburned particulates in an exhaust duct employed to exhaust combustion gases from {TAIL ~ combustion system} 
The present invention generally relates to combustion monitoring systems , and deals more particularly with a device implemented { HEAD ~ method } for monitoring the accumulation of unburned particulates in an exhaust duct employed to exhaust combustion gases from { TAIL ~ combustion system }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL