The acoustic pyrometer system is a non-intrusive method of temperature measurement that enables the combustion chamber temperature to be determined up to 2,000 ° C using the physical principle that sound waves propagate at different speeds depending on the temperature in the combustion chamber. combustion.

This operating principle combines simplicity with incredibly faster results than conventional processes. Through compressed air, a sound signal is generated in the transmitter. The duration of the sound signal between the transmitter and a receiver is measured in the combustion chamber. From the propagation time, the average temperature is measured along the measurement path, the so-called path temperature. By determination of various path temperatures at the oven level, the two dimensional cross-section temperature distribution of the oven is determined using advanced tomography methods.

Compared to conventional temperature measurement methods, a much faster measurement (no drift and free from the influence of radiation) is proven to be more reliable and accurate. Easy to operate and with a minimum cost of consumables, it has a very low cost of use. In this way, it is not only an alternative to conventional gas temperature measurement methods, it also controls the essential functions in the diagnosis, monitoring and control of the combustion process essential for the efficiency of the whole boiler system.

There are many successful cases of this application around the world, namely in Power Plants (coal, gas, oil), Incinerators (from domestic waste or hazardous waste), Cement, Steel, Copper Foundries or Refineries.