Tech Briefs

A comprehensive library of technical briefs from engineering experts at NASA and major government, university, and commercial laboratories covering all aspects of innovations in electronics, software, photonics, imaging, motion control, automation, sensors, test, materials, manufacturing, mechanical, and mechatronics.

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Briefs: Software
Surface Temperature Data Analysis
Small global mean temperature changes may have significant to disastrous consequences for the Earth’s climate if they persist for an extended period. Obtaining global means from local weather reports is hampered by the uneven spatial distribution of the reliably reporting weather stations. Methods had to be...
Briefs: Physical Sciences
In-Situ Wire Damage Detection System
An In-Situ Wire Damage Detection System (ISWDDS) has been developed that is capable of detecting damage to a wire insulation, or a wire conductor, or to both. The system will allow for real-time, continuous monitoring of wiring health/integrity and reduce the number of false negatives and false positives while...
Briefs: Electronics & Computers
The objectives of this work were to take the initial steps needed to develop a field programmable gate array (FPGA)- based wideband digital radiometer backend (>500 MHz bandwidth) that will enabl...
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Briefs: Electronics & Computers
Amplifier Module for 260-GHz Band Using Quartz Waveguide Transitions
Packaging of MMIC LNA (monolithic microwave integrated circuit low-noise amplifier) chips at frequencies over 200 GHz has always been problematic due to the high loss in the transition between the MMIC chip and the waveguide medium in which the chip will typically be used. In...
Briefs: Manufacturing & Prototyping
Buckyball Nucleation of HiPco Tubes
The purpose of this innovation is to enhance nucleation of single-wall nanotubes (SWNTs) in the HiPco process, selectively producing 10,10 tubes, something which until now has not been thought possible.
Briefs: Manufacturing & Prototyping
The Flexible Array Concentrator Technology (FACT) is a lightweight, high-performance reflective concentrator blanket assembly that can be used on flexible solar array blankets. The FACT concentrator replaces every...
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Briefs: Materials
Adjusting Permittivity by Blending Varying Ratios of SWNTs
A new composite material of singlewalled carbon nanotubes (SWNTs) displays radio frequency (0 to 1 GHz) permittivity properties that can be adjusted based upon the nanotube composition. When varying ratios of raw to functionalized SWNTs are blended into the silicone elastomer matrix at a...
Briefs: Materials
Polyolefin-Based Aerogels
An organic polybutadiene (PB) rubber-based aerogel insulation material was developed that will provide superior thermal insulation and inherent radiation protection, exhibiting the flexibility, resiliency, toughness, and durability typical of the parent polymer, yet with the low density and superior insulation properties...
Briefs: Energy
An Integrated, Layered-Spinel Composite Cathode for Energy Storage Applications
At low operating temperatures, commercially available electrode materials for lithium-ion batteries do not fully meet the energy and power requirements for NASA’s exploration activities. The composite cathode under development is projected to provide the required...
Briefs: Materials
Engineered Multifunctional Surfaces for Fluid Handling
Designs incorporating variations in capillary geometry and hydrophilic and/or antibacterial surface properties have been developed that are capable of passive gas/liquid separation and passive water flow. These designs can incorporate capillary grooves and/or surfaces arranged to create linear...
Briefs: Mechanical & Fluid Systems
Concept for Hydrogen-Impregnated Nanofiber/Photovoltaic Cargo Stowage System
A stowage system was conceived that consists of collapsible, reconfigurable stowage bags, rigid polyethylene or metal inserts, stainless-steel hooks, flexible photovoltaic materials, and webbing curtains that provide power generation, thermal stabilization, impact...
Briefs: Mechanical & Fluid Systems
Robots have been a valuable tool for providing a remote presence in areas that are either inaccessible or too dangerous for humans. Having a robot with a high degree of adaptability becomes...
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Briefs: Mechanical & Fluid Systems
There is no convenient way to demonstrate mechanically, as an outreach (or inreach) topic, the angular momentum trade-offs and the conservation of angular momentum associated with gravityassist...
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Briefs: Physical Sciences
Spectroscopic Chemical Analysis Methods and Apparatus
This invention relates to non-contact spectroscopic methods and apparatus for performing chemical analysis and the ideal wavelengths and sources needed for this analysis. It employs deep ultraviolet (200- to 300-nm spectral range) electron- beam-pumped wide bandgap semiconductor lasers,...
Briefs: Physical Sciences
Motion-Corrected 3D Sonic Anemometer for Tethersondes and Other Moving Platforms
To date, it has not been possible to apply 3D sonic anemometers on tethersondes or similar atmospheric research platforms due to the motion of the supporting platform. A tethersonde module including both a 3D sonic anemometer and associated motion correction sensors...
Briefs: Physical Sciences
Water Treatment Systems for Long Spaceflights
Space exploration will require new life support systems to support the crew on journeys lasting from a few days to several weeks, or longer. These systems should also be designed to reduce the mass required to keep humans alive in space. Water accounts for about 80 percent of the daily mass intake...
Briefs: Physical Sciences
Seismic Imager Space Telescope
A concept has been developed for a geostationary seismic imager (GSI), a space telescope in geostationary orbit above the Pacific coast of the Americas that would provide movies of many large earthquakes occurring in the area from Southern Chile to Southern Alaska. The GSI movies would cover a field of view as long as...
Briefs: Physical Sciences
Low-Cost Phased Array Antenna for Sounding Rockets, Missiles, and Expendable Launch Vehicles
A low-cost beamformer phased array antenna has been developed for expendable launch vehicles, rockets, and missiles. It utilizes a conformal array antenna of ring or individual radiators (design varies depending on application) that is designed to be fed by...
Briefs: Physical Sciences
Microchip Non-Aqueous Capillary Electrophoresis (μNACE) Method to Analyze Long-Chain Primary Amines
A protocol was developed as a first step in analyzing the complex organic aerosols present on Saturn’s moon Titan, as well as the analogues of these aerosols (tholins) made on Earth. Labeling of primary amines using Pacific Blue™ succinimidyl...
Briefs: Physical Sciences
In radiometer applications, it is required to design antennas that meet low average sidelobe levels and low average return loss over a specified frequency bandwidth. It is a...
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Briefs: Physical Sciences
Mars Science Laboratory Engineering Cameras
NASA’s Mars Science Laboratory (MSL) Rover, which launched to Mars in 2011, is equipped with a set of 12 engineering cameras. These cameras are build-to-print copies of the Mars Exploration Rover (MER) cameras, which were sent to Mars in 2003. The engineering cameras weigh
Briefs: Information Technology
Estimating Sea Surface Salinity and Wind Using Combined Passive and Active L-Band Microwave Observations
Several L-band microwave radiometer and radar missions have been, or will be, operating in space for land and ocean observations. These include the NASA Aquarius mission and the Soil Moisture Active Passive (SMAP) mission, both of which use...
Briefs: Mechanical & Fluid Systems
Cascading Tesla Oscillating Flow Diode for Stirling Engine Gas Bearings
Replacing the mechanical check-valve in a Stirling engine with a micromachined, non-moving-part flow diode eliminates moving parts and reduces the risk of microparticle clogging.
Briefs: Mechanical & Fluid Systems
A high-strength, low-weight pressure vessel dome was designed specifically to house a high-pressure [2,000 psi (≈13.8 MPa)] electrolyzer. In operation, the dome is filled with an inert gas...
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Briefs: Medical
Wideband Single-Crystal Transducer for Bone Characterization
The microgravity conditions of space travel result in unique physiological demands on the human body. In particular, the absence of the continual mechanical stresses on the skeletal system that are present on Earth cause the bones to decalcify. Trabecular structure decreases in thickness...
Briefs: Medical
Extreme Ionizing-Radiation-Resistant Bacterium
There is a growing concern that desiccation and extreme radiation-resistant, non-spore-forming microorganisms associated with spacecraft surfaces can withstand space environmental conditions and subsequent proliferation on another solar body. Such forward contamination would jeopardize future life...
Briefs: Medical
Fluorescence-Activated Cell Sorting of Live Versus Dead Bacterial Cells and Spores
This innovation is a coupled fluorescence-activated cell sorting (FACS) and fluorescent staining technology for purifying (removing cells from sampling matrices), separating (based on size, density, morphology, and live versus dead), and concentrating cells (spores,...
Briefs: Medical
Nonhazardous Urine Pretreatment Method
A method combines solid phase acidification with two non-toxic biocides to prevent ammonia volatilization and microbial proliferation. The safe, nonoxidizing biocide combination consists of a quaternary amine and a food preservative. This combination has exhibited excellent stabilization of both acidified and...
Briefs: Physical Sciences
In this innovation, the three-way combiner consists internally of two branchline hybrids that are connected in series by a short length of waveguide. Each branch-line hybrid is...
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