Articles: Sensors/Data Acquisition

NASA runs and partners in many missions dedicated to monitoring the Earth, and the tools used in these missions continuously return data on everything from shifts in temperature, to cloud...

Articles: Imaging

Since its inception, projection has been the dominant technology for displaying large, high-resolution images. Over the years, projectors have evolved to keep pace with advances in computer...

Articles: Imaging

High-speed photography is as much of an engineering tool as an oscilloscope, spectrum analyzer, or logic analyzer. The photographic technique enables us to visualize and analyze motion, especially...

Articles: Photonics/Optics

Spectroscopy techniques date back to Isaac Newton’s first studies of light and today provide researchers with a better understanding of what happens at the atomic and molecular level when matter interacts with...

Application Briefs: Electronics & Computers

PESA has announced the completion of a video routing system upgrade to NASA’s Mission Control Center (MCC) at the agency’s Johnson Space Center (JSC) in Houston. Lockheed Martin, a...

Application Briefs: Imaging

Robomotive and other humanoid robots equipped with 3D vision sensors are playing an increasing role in industrial automation, including in smaller binpicking set-ups where parts are...

Application Briefs: Imaging

Hyperspectral imaging has grown increasingly popular over the past ten years in military, industrial, and scientific arenas. The ability to precisely characterize the color of a viewed...

Briefs: Robotics, Automation & Control
Re-entry Vehicle Shape for Enhanced Performance

A vehicle entering the atmosphere of a planet will do so at hypersonic speeds and will need to decelerate and maneuver through that atmosphere while protecting its payload from excessive heating. As a consequence, the vehicle shape must be designed to provide optimal aerodynamic lift and drag...

Briefs: Physical Sciences

Until the time of this reporting, when a space vehicle required a reference signal for inertial pointing, the choices were a signal beacon from an Earth location, the Earth...

Briefs: Software
Data Acquisition and Processing Software — DAPS

DAPS was designed to support the DAWN-AIR project participating in the Genesis and Rapid Intensification Processes (GRIP) hurricane campaign. It controls the data acquisition system consisting of a scanner that directs the lidar beam, an inertial navigation system/GPS (INS/GPS) unit for...

Briefs: Sensors/Data Acquisition
Debris & Ice Mapping Analysis Tool — Database

The Debris & ICE Mapping Analysis Tool (DIMAT) system is a Web-based system that supports communication, data integration, data sharing, and problem definition/resolution through use of an integrated presentation framework for ice and debris description and analysis. It provides an integrated...

Briefs: Sensors/Data Acquisition
Data Fusion for Global Estimation of Forest Characteristics From Sparse Lidar Data

This lidar data fusion approach is based on associating samples from sparse lidar data with groups of region objects determined by a unique image segmentation approach, HSeg (Hierar - chical Segmentation). This segmentation approach, which was previously developed...

Briefs: Physical Sciences

The study of driver behavior can provide a wealth of information that can be useful in the design of automobiles including active safety features and functions....

Briefs: Information Technology

For aircraft system certification, a huge amount of testing is required to guarantee safe, robust, and error-free behavior under all operating and environmental conditions. Typically, these tests on the...

Briefs: Manufacturing & Prototyping

A gravity-independent PEM (proton exchange membrane) fuel cell stack has been developed that will operate at high-pressure H2 and O2...

Briefs: Manufacturing & Prototyping
Metal-Assisted Fabrication of Biodegradable Porous Silicon Nanostructures

Porous silicon nanowires are fabricated by two-step, metal-assisted electroless chemical etching of p-type or n-type silicon wafers. This method, in combination with nanolithography or nanopatterning, can be applied to fabricate porous silicon nanostructures of different...

Briefs: Manufacturing & Prototyping
Post-Growth, In Situ Adhesion of Carbon Nanotubes to a Substrate for Robust CNT Cathodes

The field emission electron sources using carbon nanotubes (CNTs) are being targeted for low-power vacuum microelectronic applications for harshenvironment operation (high temperature, pressure, and corrosive atmosphere). While CNTs have demonstrated...

Briefs: Manufacturing & Prototyping
Thermal Mechanical Preparation of Glass Spheres

Samples of lunar regolith have included small glass spheres. Most literature has suggested the small spheres were formed by meteorite impacts. The resulting transformation of kinetic energy to thermal energy caused the lunar surface to melt. The process yielded glass spheres. Recreating a meteorite...

Briefs: Materials

The automotive industry faces growing pressure for more efficient vehicles. This pressure comes from many sources including government regulations,...

Briefs: Materials
Mechanistic-Based Multiaxial- Stochastic-Strength Model for Transversely- Isotropic Brittle Materials

A methodology has been developed and the software written to predict the probability of failure of transversely isotropic (a type of anisotropy) materials under generalized thermomechanical loading. This methodology is mechanistic in that it is...

Briefs: Electronics & Computers

A high-temperature-capable widebandgap semiconductor power module package, coupled with a new high-temperature- capable bonding process...

Briefs: Electronics & Computers
Methods for Mitigating Space Radiation Effects, Fault Detection and Correction, and Processing Sensor Data

The Integrated Modular Avionics (IMA) architecture being developed for space applications requires that sensor data be autonomously sampled and transmitted to the system network. This transmission needs to occur on a predetermined, fixed...

Briefs: Electronics & Computers
Quad First Stage Processor: A Four-Channel Digitizer and Digital Beam-Forming Processor

A 4-channel digitizer was designed, built, and tested. The very large, complex board enables SweepSAR. The proposed Deformation, Eco-Systems, and Dynamics of Ice Radar (DESDynl-R) Lband SAR instrument employs multiple digital channels to optimize resolution...

Briefs: Electronics & Computers
Compact Ka-Band Antenna Feed with Double Circularly Polarized Capability

NASA has an interest in utilizing the Ka-band frequency allocation. One of the main reasons for migrating to Kaband is the need for higher frequency bandwidth to enable higher data rates. A dual circular polarized wideband antenna for Ka-band communications applications was...

Briefs: Mechanical & Fluid Systems

The antenna is composed of two main deployable structural components that help it achieve the large packing factor necessary to fit within the small volume of the CubeSat. The primary component of...

Briefs: Robotics, Automation & Control

A metallic sleeve provides protection and guidance for the actuating lanyard pull of a parachute system reefing line cutter. This device ensures that the reefing line cutter is not damaged...

Briefs: Mechanical & Fluid Systems
Metabolic Heat Regenerated Temperature Swing Adsorption

Two fundamental problems facing the development of a portable system to sustain life on extraterrestrial surfaces are (1) heat rejection and (2) rejection of metabolically produced CO2 to an environment with a ppCO2 of 0.4 to 0.9 kPa as is present on Mars. Portable...

Briefs: Physical Sciences
Variable Camber Aerodynamic Control Surfaces and Active Wing Shaping Control

A new concept of aircraft aerodynamic control surfaces has been developed in connection with another new concept of active wing shaping control for reducing aircraft drag that will result in less fuel burn. The first concept is referred to as a variable camber...

Briefs: Physical Sciences

In order to study atmospheric or evolved gases, it is highly advantageous for an instrument (e.g. mass spectrometer (MS), thermal conductivity detector (TCD)) to simplify the gas stream with a...

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