非線形トモグラフィー：燃焼解析のための新たなイメージング理論

"Tomography" is a technique for obtaining internal information of the target to be measured. Its application to gas concentration measurement will aid in determining the spatial distributions of gas concentrations in combustion diagnostics. However, the classical tomography can only be applied to the situation where pressure is constant and uniform cross the flow field. Also, only one component can be obtained with limited sensitivity due to the inherent limitations with classical tomography. The combination of the newly proposed concept "Nonlinear Tomography" with the latest laser gas measuring techniques will enable the simultaneous spatial distribution analysis of the multiple parameters including temperature, pressure, and concentration of several gas components. This will facilitate the study of new combustion concepts and engine designs.