Research on high temperature oxygen calibration method based on TDLAS
Accurate measurement of combustion site temperature is an important indicator for evaluating combustion conditions.Tunable diode laser absorption spectroscopy(TDLAS)technology is an effective non-contact combustion diagnosis method,which has a wider measurement range,high precision and good anti-interference performance,and can achieve continuous measurement.However,the spectral data in the High-Resolution Transmission Molecular Absorption Database(HITRAN)are based on the spectral line parameters of 296 K,and the spectral data at higher temperatures are obtained through calculation.Therefore,this article uses TDLAS wavelength modulation technology to calibrate the functional relationship between the second harmonic signal intensity and temperature of O2 in high-temperature fields.lays the foundation for subsequent combustion field temperature measurement experiments.
tunable diode laser absorption spectroscopywavelength modulation technologycombustion field
NETL
NSTL
万方数据
