Online Pyrometry Calibration for Industrial Combustion Process Monitoring

Temperature and its distribution are crucial for combustion monitoring control. For this application, digital camera-based pyrometers become increasingly popular, due to relatively low cost. However, these not universally applicable the dependence of calibration. Compared with pyrometers, cameras exist in all most every chamber. Although cameras, theologically, have ability measure temperature, lack calibration they only used visualization support decisions operators. Almost existing methods laboratory-based, hence cannot calibrate a camera operation. This paper proposes an online method. It uses pre-calibrated as standard pyrometer another The is based on photo taken by pyrometry-camera at position close Since does affect use operation, it sharply reduces cost difficulty In paper, procedure proposed, advice about how set parameters given. Besides, radio pyrometry revised wider temperature range. algorithm developed two assumptions images same flame proximity: (1) there common regions between position; (2) some constant characteristic temperatures two-dimensional distributions from different angles. And those verified real industrial plants. Based features, matching online. method was tested validated industrial-scale municipal solid waste incinerator. accuracy calibrated sufficient