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Showing 1 to 11 of 11 for “"Fabry-Perot interferometer (FPI)"”.

  1. Fiber Optic Sensors for Liquid Identifications

    Naku, WassanaMissouri University of Science and Technology

    <p>"The fiber optic Fabry-Perot interferometer (FPI) is a widely utilized sensing configuration, offering numerous advantages over conventional electronic sensors, including high accuracy, distributed sensing capabilities, immunity to electromagnetic interference, and compact size. In this study, …

    must-thes Repository record

  2. Imaging of volcanic trace gases by Fabry-Perot interferometer correlation spectroscopy

    Fuchs, ChristopherUniversität Heidelberg

    … this thesis, a novel imaging approach based on Fabry-Perot interferometer correlation spectroscopy (FPI CS) is presented. The technique exploits the periodic transmission profile of a Fabry-Perot interferometer (FPI) and its correlation to the (approximately periodically varying) target trace gas …

    heid-thes Repository record

  3. Application and simulation of imaging Fabry-Perot interferometers to observe the upper atmosphere

    Huang, YiyiUniversity of Illinois at Urbana-Champaign2012

    … in the study of upper atmosphere dynamics. The Fabry-Perot interferometer (FPI) is a spectroscopic instrument which facilitates these measurements by observing the naturally occurring airglow emissions in the thermosphere. This dissertation focuses on the simulation and application of the FPI to …

    uiuc Repository record

  4. Optical Frequency Domain Reflectometry Based Quasi-distributed High Temperature Sensor

    Wu, NanVirginia Tech2013

    … to design and fabricate a sapphire wafer based Fabry-Perot interferometer (FPI) sensor for temperature sensing in coal gasifiers. The sensor head is based on the use of sapphire wafer which is attached to a lead-in sapphire fiber to be applied in the ultrahigh temperature region; and the …

    vt Repository record

  5. Three-dimensional wind measurements and modeling using a bi-static Fabry-Perot interferometer system in Brazil

    Fisher, DanielUniversity of Illinois at Urbana-Champaign2013

    … by 232.28 km and each is equipped with a Fabry-Perot interferometer (FPI) to measure neutral wind velocities and neutral temperatures using observations of the 630.0-nm emission caused by the dissociative recombination of O2+. The FPI systems can operate in two different modes: cardinal …

    uiuc Repository record

  6. CREATING TEST MECHANISMS FOR SILICON SUBSTRATE BASED (SSB) DEVICES FOR USE IN FAR-IR TO MILLIMETER ASTROPHYSICAL SPECTROSCOPY

    Linevsky, JacquelynCornell University2023

    … instruments based on similar technology – the Fabry Perot Interferometer (FPI) for use in EoR-Spec instrument and the Virtually Imaged Phase Array (VIPA) spectrograph for use in the POEMM (Planetary Origins and Evolution Multispectral Monochromator) instrument. This paper is divided into three …

    cornell Repository record

  7. A Remote Observatory for Geocoronal Hydrogen Emissions

    Gallant, Margaret A.

    … research facility that is designed to use Fabry-Perot interferometer (FPI) to study the faint Balmer series emissions of the terrestrial upper thermosphere and exosphere, collectively known as the geocorona. This instrumentation is designed to be deployable to a clear-air site, …

    embry-riddle Repository record

  8. Cross sensitivity analysis of optical fibre-based sensing for high pressure, high temperature measurement in oil and gas applications.

    Amos, Solomon UdohRobert Gordon University2018

    … and analysed the spectral characterization of a Fabry-Perot interferometer (FPI) sensor and the interaction with physical parameters. Preliminary results of this configuration are used to eliminate the issue of temperature-pressure cross-sensitivity and effectively improve the resolution of the …

    rgu Repository record

  9. Optical gas sensors based on correlation spectroscopy using a Fabry-Perot interferometer

    Vargas-Rodríguez, EverardoUniversity of Southampton2007

    … sensors based on correlation spectroscopy with a Fabry-Perot interferometer (FPI). In this technique the spectral FPI transmission fringe pattern is matched with ro-vibrational absorption lines. To produce the cross correlation principle the FPI fringe pattern must be shifted along the frequency …

    soton Repository record

  10. Observations of the thermosphere using measurements from long-term Fabry-Perot interferometers

    Fisher, Daniel JUniversity of Illinois at Urbana-Champaign2017

    … winds and temperatures from data collected by Fabry-Perot interferometers (FPI) operating in Brazil, the United States, and Morocco. These instruments observe the 630.0-nm redline emission and estimate the neutral parameters from the Doppler shift and broadening of the spectra. The instruments …

    uiuc Repository record

  11. Tidal analysis of modeled thermospheric winds to improve agreement with measurements over South Africa

    Chu, KristinaUniversity of Illinois at Urbana-Champaign2019

    Made available in DSpace on 2019-08-23T19:51:48Z (GMT). No. of bitstreams: 4 CHU-THESIS-2019.pdf: 4866560 bytes, checksum: 017305d631eda57a27d64bc0c65b2b55 (MD5) LICENSE.txt: 4209 bytes, checksum: de0418cfda74c8bb803da2fe0b0b3c9c (MD5) RightsLink Printable License Elsevier.pdf: 199071 bytes, …

    uiuc Repository record