National Instruments, Austin, TX, has released the NI PXIe-5186 digitizer, co-developed with Tektronix, Beaverton, OR. The unit achieves up to 5 GHz bandwidth and 12.5 GS/s sample rates. The NI PXIe-5185 delivers 3 GHz...

Techs for License
Facing for Acoustic Batts that Contain Melt-Film Fibrillation

Melt-Film Fibrillation (MFF) technology produces a facing for acoustic batts for vehicle sound insulation that offers equivalent or superior sound-deadening performance at reduced weight and cost. Equivalent weights of MFF fibers produce substantially enhanced sound insulation over...

Techs for License
Adaptive Membranes for Comfortable Protective Wear

This dual-membrane technology provides apparel with a high degree of comfort, passing air and water vapor easily. The garment (or survival enclosure) can instantly be made impervious with the flip of a switch on the belt-mounted power pack. The garment can be toggled between high comfort and...

Tech Needs
Sensitive, Robust Sensors for Ethane and Methane Detection

A company seeks a sensor that is sensitive and quantitative for ethane from 5 ppm to 5,000 ppm, and for methane from 5 ppm to 7,000 ppm. The sensor(s) should work in or near oil. While the location of the sensor heads should primarily be positioned in the headspace above the oil, ability...

Tech Needs
Solution to Filter Light to High Specification

A firm seeks to identify spectral filter technologies to operate within a demanding optical environment. The technology solution will enable the suppression of out-of-band wavelengths above 100 nm, while exhibiting minimal loss to wavelengths of the order of 10 nm. The solution can be manufactured...

Briefs: Physical Sciences
Stereo Imaging Miniature Endoscope

Stereo imaging requires two different perspectives of the same object and, traditionally, a pair of side-by-side cameras would be used but are not feasible for something as tiny as a less than 4-mm-diameter...

Briefs: Physical Sciences
Wind and Temperature Spectrometry of the Upper Atmosphere in Low-Earth Orbit

Wind and Temperature Spectrometry (WATS) is a new approach to measure the full wind vector, temperature, and relative densities of major neutral species in the Earth’s thermosphere. The method uses an energy-angle spectrometer moving through the tenuous upper...

Briefs: Information Technology
Health Monitor for Multitasking, Safety-Critical, Real-Time Software

Health Manager can detect “Bad Health” prior to a failure occurring by periodically monitoring the application software by looking for code corruption errors, and sanity-checking each critical data value prior to use. A processor’s memory can fail and corrupt the...

Briefs: Physical Sciences
Parallel Wavefront Analysis for a 4D Interferometer

This software provides a programming interface for automating data collection with a PhaseCam interferometer from 4D Technology, and distributing the image-processing algorithm across a cluster of general-purpose computers.

Briefs: Electronics & Computers
Early Oscillation Detection Technique for Hybrid DC/DC Converters

Oscillation or instability is a situation that must be avoided for reliable hybrid DC/DC converters. A real-time electronics measurement technique was developed to detect catastrophic oscillations at early stages for hybrid DC/DC converters. It is capable of identifying low-level...

Compact THz receivers with broad bandwidth and low noise have been developed for the frequency range from 100 GHz to 1 THz. These receivers meet the requirements for high-resolution...

Briefs: Electronics & Computers
Coaxial Cables for Martian Extreme

Work was conducted to validate the use of the rover external flexible coaxial cabling for space under the extreme environments to be encountered during the Mars Science Laboratory (MSL) mission. The antennas must survive all ground operations plus the nominal 670-Martian-day mission that includes summer and...

Briefs: Electronics & Computers
Carbon Nanofiber-Based, High-Frequency, High-Q, Miniaturized Mechanical Resonators

High Q resonators are a critical component of stable, low-noise communication systems, radar, and precise timing applications such as atomic clocks. In electronic resonators based on Si integrated circuits, resistive losses increase as a result of the continued...

Briefs: Electronics & Computers
Using Spare Logic Resources To Create Dynamic Test Points

A technique has been devised to enable creation of a dynamic set of test points in an embedded digital electronic system. As a result, electronics contained in an application specific circuit [e.g., gate array, field programmable gate array (FPGA)] can be internally “probed,” even...

Briefs: Electronics & Computers
Ultracapacitor-Based Uninterrupted Power Supply System

The ultracapacitor-based uninterrupted power supply (UPS) system enhances system reliability; reduces life-of-system, maintenance, and downtime costs; and greatly reduces environmental impact when compared to conventional UPS energy storage systems. This design provides power when required...

Briefs: Software
Autonomous Coordination of Science Observations Using Multiple Spacecraft

This software provides capabilities for autonomous cross-cueing and coordinated observations between multiple orbital and landed assets. Previous work has been done in re-tasking a single Earth orbiter or a Mars rover in response to that craft detecting a science event....

Briefs: Software
EOS MLS Level 1B Data Processing Software, Version 3

This software is an improvement on Version 2, which was described in “EOS MLS Level 1B Data Processing, Version 2.2,” NASA Tech Briefs, Vol. 33, No. 5 (May 2009), p. 34. It accepts the EOS MLS Level 0 science/engineering data, and the EOS Aura spacecraft ephemeris/attitude data, and...

Briefs: Software
Cassini Tour Atlas Automated Generation

During the Cassini spacecraft’s cruise phase and nominal mission, the Cassini Science Planning Team developed and maintained an online database of geometric and timing information called the Cassini Tour Atlas. The Tour Atlas consisted of several hundreds of megabytes of EVENTS mission planning software...

Briefs: Software
Software Development Standard Processes (SDSP)

A JPL-created set of standard processes is to be used throughout the lifecycle of software development. These SDSPs cover a range of activities, from management and engineering activities, to assurance and support activities. These processes must be applied to software tasks per a pre- scribed set...

Briefs: Software
Autonomous Phase Retrieval Calibration

The Palomar Adaptive Optics System actively corrects for changing aberrations in light due to atmospheric turbulence. However, the underlying internal static error is unknown and uncorrected by this process. The dedicated wavefront sensor device necessarily lies along a different path than the science...

Briefs: Manufacturing & Prototyping
Graphite Composite Panel Polishing Fixture

The use of high-strength, lightweight composites for the fixture is the novel feature of this innovation. The main advantage is the light weight and high stiffness-to-mass ratio relative to aluminum.

Briefs: Manufacturing & Prototyping
Modifying Matrix Materials to Increase Wetting and Adhesion

In an alternative approach to increasing the degrees of wetting and adhesion between the fiber and matrix components of organic-fiber/polymer matrix composite materials, the matrix resins are modified. Heretofore, it has been common practice to modify the fibers rather than the...

Briefs: Manufacturing & Prototyping
Ridge Waveguide Structures in Magnesium-Doped Lithium Niobate

This work proposes to establish the feasibility of fabricating isolated ridge waveguides in 5% MgO:LN. Ridge waveguides in MgO:LN will significantly improve power handling and conversion efficiency, increase photonic component integration, and be well suited to space-based...

Briefs: Manufacturing & Prototyping
Material Gradients in Oxygen System Components Improve Safety

Oxygen system components fabricated by Laser Engineered Net Shaping™ (LENS™) could result in improved safety and performance. LENS™ is a near-net shape manufacturing process fusing powdered materials injected into a laser beam. Parts can be fabricated with a variety of elemental...

Briefs: Mechanical & Fluid Systems
Method for Cleanly and Precisely Breaking Off a Rock Core Using a Radial Compressive Force

The Mars Sample Return mission has the goal to drill, break off, and retain rock core samples. After some results gained from rock core mechanics testing, the realization that scoring teeth would cleanly break off the core after only a few millimeters of...

Briefs: Mechanical & Fluid Systems
Scoring Dawg Core Breakoff and Retention Mechanism

This novel core break-off and retention mechanism consists of a scoring dawg controlled by a set of two tubes (a drill tube and an inner tube). The drill tube and the inner tube have longitudinal concentric holes. The solution can be implemented in an eccentric tube configuration as well where...

Sampling cores requires the controlled breakoff of the core at a known location with respect to the drill end. An additional problem is designing a mechanism that can be...

Briefs: Mechanical & Fluid Systems
Rolling-Tooth Core Breakoff and Retention Mechanism

Sampling cores requires the controlled breakoff of the core at a known location with respect to the drill end. An additional problem is designing a mechanism that can be implemented at a...

Briefs: Mechanical & Fluid Systems
Vibration Isolation and Stabilization System for Spacecraft Exercise Treadmill Devices

A novel, passive system has been developed for isolating an exercise treadmill device from a spacecraft in a zero-G environment. The Treadmill 2 Vibration Isolation and Stabilization System (T2-VIS) mechanically isolates the exercise treadmill from the...

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