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Title: Optical humidity sensor

Abstract

An optical dielectric humidity sensor which includes a dielectric mirror having multiple alternating layers of two porous water-adsorbent dielectric materials with differing indices of refraction carried by a translucent substrate. A narrow-band polarized light source is positioned to direct light energy onto the mirror, and detectors are positioned to receive light energy transmitted through and reflected by the mirror. A ratiometer indicates humidity in the atmosphere which surrounds the dielectric mirror as a function of a ratio of light energies incident on the detectors.

Inventors:
 [1]
  1. Ann Arbor, MI
Publication Date:
Research Org.:
KMS Fusion Inc
OSTI Identifier:
866135
Patent Number(s):
US 4641524
Assignee:
KMS Fusion, Inc. (Ann Arbor, MI)
DOE Contract Number:  
AC02-84ER80144
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
optical; humidity; sensor; dielectric; mirror; multiple; alternating; layers; porous; water-adsorbent; materials; differing; indices; refraction; carried; translucent; substrate; narrow-band; polarized; light; source; positioned; direct; energy; detectors; receive; transmitted; reflected; ratiometer; indicates; atmosphere; surrounds; function; ratio; energies; incident; light energy; dielectric materials; polarized light; alternating layers; light source; dielectric material; receive light; energy transmitted; optical dielectric; dielectric mirror; humidity sensor; /73/

Citation Formats

Tarvin, Jeffrey A. Optical humidity sensor. United States: N. p., 1987. Web.
Tarvin, Jeffrey A. Optical humidity sensor. United States.
Tarvin, Jeffrey A. Thu . "Optical humidity sensor". United States. https://www.osti.gov/servlets/purl/866135.
@article{osti_866135,
title = {Optical humidity sensor},
author = {Tarvin, Jeffrey A},
abstractNote = {An optical dielectric humidity sensor which includes a dielectric mirror having multiple alternating layers of two porous water-adsorbent dielectric materials with differing indices of refraction carried by a translucent substrate. A narrow-band polarized light source is positioned to direct light energy onto the mirror, and detectors are positioned to receive light energy transmitted through and reflected by the mirror. A ratiometer indicates humidity in the atmosphere which surrounds the dielectric mirror as a function of a ratio of light energies incident on the detectors.},
doi = {},
url = {https://www.osti.gov/biblio/866135}, journal = {},
number = ,
volume = ,
place = {United States},
year = {1987},
month = {1}
}

Patent:

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