@prefix dcat: <http://www.w3.org/ns/dcat#> .
@prefix dct: <http://purl.org/dc/terms/> .
@prefix foaf: <http://xmlns.com/foaf/0.1/> .
@prefix vcard: <http://www.w3.org/2006/vcard/ns#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .

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    dct:description """Innovative Imaging and Research, a small technology development company,
has teamed with the University of Southern Mississippi Instrument and
Cryogenics Research Laboratory to integrate existing NASA Stennis Space
Center heritage cryogen level monitoring technology with noncontact
optical methods and advanced signal processing to create a 21st century
liquid cryogen level measurement technique.  We propose to place a
fiber-optic laser range finder on the upper surface of a low pressure
cryogen run tank and use the existing Hall effect float system as an
optical target to reflect the light signal back to the range finder.  We
also propose combining measurements obtained with the fiber-optic range
finder with those taken by the heritage system using a custom Kalman
filter signal processing algorithm to reduce measurement noise and
increase overall accuracy.  Our optical technique has several advantages
over the existing Hall effect method.  It yields near continuous
measurements and is not dependent on the location of individual sensors.
It is based on an alternate physics approach and therefore yields
completely independent results.  The optical range finder instrument
calibration is performed outside the tank, so test operation is not
significantly impacted and run tanks do not need to be emptied.  In
addition, an optical fiber mounted on the upper surface of a cryogen
tank does not present foreign object debris (FOD) concerns.  During our
Phase 1 STTR project we will demonstrate our concept in a university
cryogen research laboratory using a commercial optical range finder.  In
Phase 2 we plan to demonstrate our concept with fiber-optic technology
using the SSC Instrument Test Apparatus under a NASA Space Act
Agreement.  Our Phase 1 concept is at a technology readiness level (TRL)
of 2.  We expect to complete Phase 1 at a TRL of 4 and complete Phase 2
at a TRL of 6.""" ;
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    dct:issued "2012-02-01"^^xsd:date ;
    dct:modified "2020-01-29"^^xsd:date ;
    dct:publisher <https://data.amerigeoss.org/organization/727dbdd5-3f98-4ac0-9d28-5e344558139b> ;
    dct:title "Optical Approach to Augment Current Float Sensing Method of Determining Cryogen Fluid Height Within a Tank, Phase I" ;
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    dct:title "Optical Approach to Augment Current Float Sensing Method of Determining Cryogen Fluid Height Within a Tank, Phase I" ;
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    dct:title "Optical Approach to Augment Current Float Sensing Method of Determining Cryogen Fluid Height Within a Tank, Phase I" ;
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