Title :
Simultaneous Temperature, Concentration, and Pressure Imaging of Water Vapor in a Turbine Engine
Author :
Wood, Michael P. ; Ozanyan, Krikor B.
Author_Institution :
Sch. of Electr. & Electron. Eng., Univ. of Manchester, Manchester, UK
Abstract :
We present a numerical study demonstrating the simultaneous reconstruction of the temperature, species concentration, and pressure of molecular water vapor, by tomographic means, from near-infrared laser absorption measurements over beam paths transecting the gaseous region. The synthetic measurement data is predicted from a set of randomized distributions of the reconstructed variables using spectroscopic theory and the HITRAN parameter database. Design optimization geometric orientation of the beams is performed to maximize reconstruction accuracy.
Keywords :
adsorption; chemical variables measurement; design engineering; jet engines; measurement by laser beam; optimisation; pressure measurement; random processes; statistical distributions; temperature measurement; HITRAN parameter database; beam path; design optimization geometric orientation; gaseous region; molecular water vapor; near infrared laser absorption measurement; pressure imaging; random distribution; reconstruction accuracy maximisation; species concentration imaging; spectroscopic theory; synthetic measurement data prediction; temperature imaging; tomography; turbine engine; Absorption; Equations; Image reconstruction; Laser beams; Measurement by laser beam; Temperature measurement; Tomography; Diode lasers; hyperspectral imaging; temperature; tomography;
Journal_Title :
Sensors Journal, IEEE
DOI :
10.1109/JSEN.2014.2349796
