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Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.

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At least 631 records · Page 35

All sources NASA NTRS DOE OSTI

NASA NTRS2003

The ST7 interferometric displacement sensor: a progress report

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distrubance reduction system ST7-interferometer↗

NASA NTRS2002

GPS measurements of tidally induced solid earth displacements

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tides GPS↗

NASA NTRS2002

The DRS interferometric displacement sensor

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Disturbance Reduction System interferometer↗

NASA NTRS2002

CHAMP, mass displacements, and the Earth's rotation

The angular momentum of the atmosphere and oceans change as both the distribution of mass within the atmosphere and oceans changes and as the direction and speed of the winds and currents change.

gravitational field Earth rotation length of day↗

NASA NTRS2001

A displacement measuring laser heterodyne interferometer with sub-Angstrom accuracy

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interferometry metrology nano-technology↗

NASA NTRS2001

Wavefront versus amplitude division high precision displacement measuring interferometers

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metrology Space Interferometry Mission Interferome↗

NASA NTRS2001

Characterization of picometer repeatibility displacement meterology gauges

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metrology space interferometry mission interferome↗

NASA NTRS2001

Characterization of Picometer repeatability displacement metrology gauges

A facility to test the linearity and drift of heterodyne laser metrology gauges for measuring distances of 1 to 7 meters with 10 picometer repeatability is described.

metrology space interferometry mission interferome↗

NASA NTRS2001

Wavefront versus amplitude division high precision displacement measuring interferometers

We discuss and compare different methods to reduce periodic nonlinear error and improve thermal stability. Experimental results will be presented and discussed.

metrology laser interferometers↗

NASA NTRS2001

Characterization of Picometer repeatibility displacement meteorology gauges

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metrology space interferometry mission interferome↗

NASA NTRS2000

The Mw7.6, Manyi (Tibet) Earthquake: Surface Rupture, Surface Displacement Field, and Fault Slip Solution from ERS SAR Data

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Earthquakes InSAR↗

NASA NTRS1999

Evidence of Non-Linear Elasticity of the Crust from the Mw7.6 Manyi (Tibet) Earthquake Surface Displacement Field

Satellite synthetic aperture radar (SAR) interferometry shows that the magnitude 7.6 Manyi earthquake of 8 November 1997 produces a 170 km-long surface break with up to 7m of left-lateral slip, reactivating a North 76 degrees East quaternary fault in western Tibet.

SAR Interferometry Earthquake↗

NASA NTRS1999

The Mw7.6, Manyi (Tibet) Earthquake: Surface Rupture, Surface Displacement Field, and Fault Slip Solution from ERS SAR Data

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Earthquake SAR Remote Sensing↗

NASA NTRS1997

Comparison of ice-shelf elastic deformation simulations with tidal displacements measured with ERS radar interferometry on Ronne Ice Shelf, Antarctica

Multiple radar inteferograms from the ERS satellite, may be used to eliminate the influence of the long-term velocity of an ice shelf to isolate the deformation signals associated with the cyclic, vertical motion of the ice shelf under the influence of tidal forcing from the ocean.

ice-shelf Ronne Ice Shelf Antarctica velocity↗

NASA NTRS1995