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Title: Laser barometer

Abstract

A pressure measuring instrument that utilizes the change of the refractive index of a gas as a function of pressure and the coherent nature of a laser light to determine the barometric pressure within an environment. As the gas pressure in a closed environment varies, the index of refraction of the gas changes. The amount of change is a function of the gas pressure. By illuminating the gas with a laser light source, causing the wavelength of the light to change, pressure can be quantified by measuring the shift in fringes (alternating light and dark bands produced when coherent light is mixed) in an interferometer.

Inventors:
; ;
Issue Date:
Research Org.:
United States Of America, Department Of Energy
Sponsoring Org.:
USDOE
OSTI Identifier:
1176673
Patent Number(s):
H001937
Assignee:
United States Of America, Department Of Energy OSTI
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION; 42 ENGINEERING

Citation Formats

Abercrombie, Kevin R., Shiels, David, and Rash, Tim. Laser barometer. United States: N. p., 2001. Web.
Abercrombie, Kevin R., Shiels, David, & Rash, Tim. Laser barometer. United States.
Abercrombie, Kevin R., Shiels, David, and Rash, Tim. Tue . "Laser barometer". United States. https://www.osti.gov/servlets/purl/1176673.
@article{osti_1176673,
title = {Laser barometer},
author = {Abercrombie, Kevin R. and Shiels, David and Rash, Tim},
abstractNote = {A pressure measuring instrument that utilizes the change of the refractive index of a gas as a function of pressure and the coherent nature of a laser light to determine the barometric pressure within an environment. As the gas pressure in a closed environment varies, the index of refraction of the gas changes. The amount of change is a function of the gas pressure. By illuminating the gas with a laser light source, causing the wavelength of the light to change, pressure can be quantified by measuring the shift in fringes (alternating light and dark bands produced when coherent light is mixed) in an interferometer.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2001},
month = {2}
}

Patent:

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