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Fluid Properties Measurements Using Wavelength Modulation Spectroscopy with First Harmonic DetectionAn 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.
Document ID
20150003385
Acquisition Source
Headquarters
Document Type
Other - Patent
Authors
Chen, Shin-Juh
Silver, Joel A.
Date Acquired
March 20, 2015
Publication Date
November 25, 2014
Subject Category
Lasers And Masers
Report/Patent Number
Patent Number: US-Patent-8,896,836
Patent Application Number: US-Patent-Appl-SN-13/868,326
Funding Number(s)
CONTRACT_GRANT: FA8650-11-M-2146
CONTRACT_GRANT: NNX13CS03P
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
Patent
US-Patent-8,896,836
Patent Application
US-Patent-Appl-SN-13/868,326

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