Wavelength-modulation spectroscopy for determination of gas properties in hostile environments

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Abstract/Contents

Abstract
Over the past 40 years, tunable diode laser absorption spectroscopy (TDLAS) sensors have matured into a practical technology for providing non-intrusive, in-situ measurements of gas properties in a number of hostile energy systems. However, the applicability of TDLAS sensors has been limited by a number of fundamental measurement challenges including: beam-steering, non-absorbing transmission losses, interfering emission, line-of-sight non-uniformities, and broad and blended absorption spectra at high pressures. This work presents the development and demonstration of several novel calibration-free wavelength-modulation spectroscopy (WMS) techniques and sensors that enable high-fidelity measurements of gas properties in highly non-uniform gases and high-pressure gases. These WMS techniques are demonstrated with measurements of gas temperature, H2O, pressure, and velocity in two model scramjet combustors and a pulse detonation combustor.

Description

Type of resource text
Form electronic; electronic resource; remote
Extent 1 online resource.
Publication date 2014
Issuance monographic
Language English

Creators/Contributors

Associated with Goldenstein, Christopher S
Associated with Stanford University, Department of Mechanical Engineering.
Primary advisor Hanson, Ronald
Thesis advisor Hanson, Ronald
Thesis advisor Cappelli, Mark A. (Mark Antony)
Thesis advisor Jeffries, Jay Barker
Advisor Cappelli, Mark A. (Mark Antony)
Advisor Jeffries, Jay Barker

Subjects

Genre Theses

Bibliographic information

Statement of responsibility Christopher S. Goldenstein.
Note Submitted to the Department of Mechanical Engineering.
Thesis Thesis (Ph.D.)--Stanford University, 2014.
Location electronic resource

Access conditions

Copyright
© 2014 by Christopher Sean Goldenstein
License
This work is licensed under a Creative Commons Attribution Non Commercial 3.0 Unported license (CC BY-NC).

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