Keyword: Gases

Briefs: Mechanical & Fluid Systems

The current coring bit and percussive drilling style works very well for strong rocks; however, when coring into weak, crumbling rock, the core tends to break apart and simply...

Briefs: Mechanical & Fluid Systems
Torque Plug Actuator Design for Sample Return Sample Tubes

During the transportation of any sample material, it is important to ensure that no damage or contamination of the sample occurs while in transit. This concept is extremely important within the sample caching rover sample return architecture. Adequately sealing the sample tubes is...

Briefs: Manufacturing & Prototyping

There has been a great deal of interest in building bolometers from hightemperature superconductors due to their high transition temperatures and the...

Briefs: Manufacturing & Prototyping
High-Precision Thin Film Metal Liftoff Technique

The objective of this work was to develop a thin film metal liftoff process that would allow one to accurately pattern two-micron-wide (or wider) features. The goal of this innovation was to pattern thin metal films on silicon substrates. The thin metal films can be deposited using physical vapor...

Briefs: Manufacturing & Prototyping
Process for 3D Printer Filament Fabrication

Conventional filament extrusion processes are unsuitable for recycling materials on the International Space Station due to requirements for continuous monitoring and tuning, as well as poor filament dimensional control. The Positrusion process recycles scrap or waste thermoplastics into filament for 3D...

Articles: Robotics, Automation & Control

A potentiometer sensor is an electromechanical component that consists of a resistor where the voltage divider value can be measured at any position by means of sliding contacts between...

Briefs: Electronics & Computers
Device Accommodating Volume Expansion and Contraction for Water-Ice Phase Change Material Heat Sinks

This invention accommodates the volume expansion and contraction of water ice as it freezes and thaws, thus enabling the use of water as a phase change material (PCM) for thermal energy storage. Due to the relatively large volume expansion of...

Briefs: Photonics/Optics
A Novel Approach to Liquid-Level Sensing Using Fiber Bragg Grating Technology (CryoFOSS)

The Cryogenic Fiber Optic Sensing System (CryoFOSS) offers an approach to liquid-level sensing that uses fiber optic Bragg sensor technology. The innovation is able to sense liquid levels to within 1/4-inch spatial resolution and can actively discern between...

Briefs: Photonics/Optics
MEMS Glow Discharge Plasma Electron and Ion Source

A microelectromechanical system (MEMS) glow discharge plasma electron and ion source (GDEIS) was designed for operation in high-pressure environments such as planetary atmospheres for mass spectroscopy. Glow discharge electron/ ion sources create electrons and ions from gas molecules in an...

Briefs: Manufacturing & Prototyping
Conformal Nanotube Baffle for a Compact Coronagraph

The development of a conformal nanotube process is enabling for many applications in solar physics and space astrophysics (e.g., direct detection and imaging of exoplanets). Coronagraphs are key heliophysics instruments because they image coronal mass ejections (CMEs), which are the most...

Articles: Aerospace
Modular Jet Ski: No Trailer, Affordable, High-Performance Anders Stubkjaer
BomBoard LLC
Whitewater, WI

Millions of water enthusiasts have no...

Briefs: Test & Measurement

Fire safety in space vehicles is of utmost importance, especially for manned flight. On the International Space Station (ISS), events that may lead to fires, especially smoldering, must be...

Briefs: Mechanical & Fluid Systems
Pneumatic Conveying of Lunar Regolith Simulant

Planetary regolith (dust) is an aggregation of various minerals and different particle sizes. Collection, storage, processing, and disposal of this material are very challenging in the harsh planetary environment. Extraterrestrial operations involving In-Situ Resource Utilization (ISRU) require...

Briefs: Medical
Hydrostatic Hyperbaric Oxygen Treatment Chamber

A hyperbaric chamber has been designed to achieve the goals of maximizing safety, minimizing complexity, and minimizing cost of hyperbaric chamber therapy. This design minimizes the volume of compressed gas in the chamber, and eliminates the need for complex gas mixing, carbon dioxide scrubbing,...

Articles: Aerospace

The technologies NASA develops don’t just blast off into space. They also improve our lives here on Earth. Life-saving search-and-rescue tools, implantable medical devices, advances in commercial aircraft...

NASA Spinoff: Aerospace
NASA Technology

B y the time the gas you fill your car with hits the engine, it’s been through quite a journey. Even apart from its transformation from organic matter into...

Briefs: Sensors/Data Acquisition
Detection of Gases and Vapors Present at Low Concentrations

A nanostructure-based mechanism was developed for sensing the presence of, and estimating concentration values of, specified chemical components in a sample gas to which the mechanism is exposed, where the concentrations may be as low as five parts per billion. The mechanism receives a...

Briefs: Sensors/Data Acquisition
Free-Space, Coupled, Multi- Element Detector for Deep Space Optical Communication

High-data-rate deep space optical communication (DSOC) links are desired by NASA and other space agencies to support future advanced science instruments, live high-definition (HD) video feeds, telepresence, and human exploration of Mars and beyond. Optical...

Briefs: Information Technology
Development of Free Molecule Flow Equations from a Transient, Asymmetric Source

The analysis and simulation of gases expanding from sources such as rocket nozzles into vacuum, or the effects plumes from these sources create when they interact with solid surfaces, present a considerable challenge to the scientific and engineering communities. As...

Briefs: Manufacturing & Prototyping
Rapid Quench Furnace for Processing Powder in an Inert Environment

Ongoing work in the development and characterization of sensory materials requires the development of shape memory alloy (SMA) powder or particles. These are embedded in structural material so that the progression of localized damage that occurs during fatigue crack growth will...

Briefs: Sensors/Data Acquisition
Nanosensors for Medical Diagnosis

Many diseases are accompanied by characteristic odors, and their recognition can provide diagnostic clues, guide the laboratory evaluation, and affect the choice of immediate therapy. The study of the chemical composition in human breath using gas chromatography/mass spectrometry (GC/MS) has shown a correlation...

Briefs: Materials
Plasma Extraction of Oxygen from the Martian Atmosphere

Extraction of oxygen from the abundant carbon dioxide present on Mars (96% atmospheric composition) is an important objective in preparation for missions to the planet. Oxygen is not only a fundamental reactant with high-specific-energy chemical fuels such as hydrogen and methane, but,...

Briefs: Materials
Application of Carbon Nanotube Hold-Off Voltage for Determining Gas Composition

In this innovation, a method and associated system have been created to vary a voltage applied to an exposed end of a carbon nanotube for a selected time interval to promote gas discharge, and to estimate a gas component involved in the discharge. Each component of a...

Briefs: Imaging
Flight Proving a Heliophysics Soft X-Ray Imager

The interaction between the solar wind and the Earth’s magneto - sphere results in “space weather.” To determine the true nature of the solar wind-magnetosphere interaction, scientists require global measurements of processes occurring at the bow shock, in the magnetosheath, and at the...

Briefs: Aerospace
Improved Hall Thrusters Fed by Solid Phase Propellant

Hall thrusters normally use Xe propellant, which is expensive and scarce in the solar system. The weight of Xe is such that typical Hall thrusters are limited in specific impulse to approximately 3,000 s. The objective of this program was to improve and demonstrate Mg Hall thruster systems....

Briefs: Electronics & Computers

A new technology delivers temperature hardening in a number of products at the CMOS process level while increasing overall product reliability and longevity. Providing...

Application Briefs: Imaging

In a propellant fire, large molten aluminum drops form at the burning surface. The drops are lofted into the environment and can severely damage anything that they fall on. Liquid breakup must...

Briefs: Test & Measurement
Mass Gauging Demonstrator for Any Gravitational Conditions

This concept uses an optical interferometric method to determine the density and/or pressure of the gas state contained with tank ullage. The system is similar to compression tank volume methods. By using an optical interferometric technique to determine gas density and/or pressure, a...

Briefs: Manufacturing & Prototyping
Increased Alignment in Carbon Nanotube Growth

The combination of electronic and mechanical properties of carbon nanotubes (CNTs) has led to wide-ranging investigation of their potential in future electronics and computing, sensors, electrodes, and composites. A method and system for fabricating an array of two or more CNT structures on a coated...