Fluid Properties Measurements Using Wavelength Modulation Spectroscopy with First Harmonic Detection

[摘要] An apparatus and method for monitoring gas velocity, temperature, and pressure in combustion systems and flow devices, in particular at inlets and isolators of scramjet engines. The invention employs wavelength modulation spectroscopy with first harmonic detection and without the need to scan the full absorption spectra.

[发布日期] 2014-11-25

[学科分类] 航空航天科学