Spatial carrier phase-shifting method to the holographic CT measurement of gas temperature field

Spatial carrier phase-shifting method is used to real time holography detection for identifying phase quickly from interferogram.A real time holographic experiment is done on the gas around a heating cord by single exposure method and two types of interferogram are obtained.By using holographic CT technique,the temperature fields are both calculated.The comparison results show that the method is feasible and easy to practical application in real time holographic interferometry.Its accuracy is high.