NASA Tech Briefs’ Physical Sciences Web page spans the fields of earth science, chemistry, and physics, focusing on advances in sensing, test, and measurement. Tech Briefs report on innovations in microscopy, spectroscopy, photonics and more. Many of the Tech Briefs below are correlated to a Technical Support Package (TSP) or White Paper that can be downloaded free of charge.
May 2009
Modal Filters for Infrared InterferometryApr 2009
Wireless Fluid-Level Sensors for Harsh EnvironmentsDirect-Solve Image-Based Wavefront Sensing
Use of UV Sources for Detection and Identification of Explosives
Gradiometer Using Middle Loops as Sensing Elements in a Low-Field SQUID MRI System
Volcano Monitor: Autonomous Triggering of In-Situ Sensors
Determining Aliasing in Isolated Signal Conditioning Modules
Apparatus for Screening Multiple Oxygen-Reduction Catalysts
Spectrum Analyzers Incorporating Tunable WGM Resonators
Composite Bipolar Plate for Unitized Fuel Cell/Electrolyzer Systems
Quantum-Well Thermophotovoltaic Cells
Mar 2009
Improved Instrument for Detecting Water and Ice in SoilReal-Time Detection of Dust Devils From Pressure Readings
nBn Infrared Detector Containing Graded Absorption Layer
Ultra-Broad-Band Optical Parametric Amplifier or Oscillator
Atomic References for Measuring Small Accelerations
Enhancing SERS by Means of Supramolecular Charge Transfer
Particle-Image Velocimeter Having Large Depth of Field
Improved Signal Chains for Readout of CMOS Imagers
Improving 3D Wavelet-Based Compression of Hyperspectral Images
Feb 2009
Measuring Low Concentrations of Liquid Water in SoilCompact Microwave Fourier Spectrum Analyzer
Non-Contact Measurement of Density and Thickness Variation in Dielectric Materials
The Mars Science Laboratory Touchdown Test Facility
Grooved Fuel Rings for Nuclear Thermal Rocket Engines
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