Keyword: Parts

Articles: Sensors/Data Acquisition
Power Fingerprinting Monitor: Protecting Critical Infrastructure from Cyber Attack Carlos R. Aguayo Gonzalez, Jeffrey H. Reed, and Steven Chen
Power Fingerprinting,...
Articles: Robotics, Automation & Control
Fuel Flexible, Ultra-Portable Microturbine Generator Erik Herold, Jason Ethier, and Ivan Wang
Dynamo Micropower,
Boston, MA

A large unmet need in the oil...

Briefs: Software
LEGEND, a LEO-to-GEO Environment Debris Model

LEGEND (LEO-to-GEO Environment Debris model) is a three-dimensional orbital debris evolutionary model that is capable of simulating the historical and future debris populations in the near- Earth environment. The historical component in LEGEND adopts a deterministic approach to mimic the known...

Briefs: Electronics & Computers
SpaceCube Version 1.5

SpaceCube 1.5 is a high-performance and low-power system in a compact form factor. It is a hybrid processing system consisting of CPU (central processing unit), FPGA (field-programmable gate array), and DSP (digital signal processor) processing elements. The primary processing engine is the Virtex-5 FX100T FPGA, which has...

Briefs: Mechanical & Fluid Systems

This invention is a new approach to designing foil bearings to increase their load capacity and improve their reliability through passive thermal management....

Briefs: Physical Sciences

SweepSAR, a novel radar architecture that depends on a DBF (digital beamforming) array, requires calibration accuracies that are order(s) of magnitude...

Briefs: Physical Sciences

Testing of victim detection radars has traditionally used human subjects who volunteer to be buried in, or climb into a space within, a rubble pile. This is not only uncomfortable, but can be...

Briefs: Electronics & Computers
High-Speed, High-Resolution Time-to-Digital Conversion

This innovation is a series of time-tag pulses from a photomultiplier tube, featuring short time interval between pulses (e.g., 2.5 ns). Using the previous art, dead time between pulses is too long, or too much hardware is required, including a very-high-speed demultiplexer. A faster method...

Briefs: Manufacturing & Prototyping
Ultrasonic Low-Friction Containment Plate for Thermal and Ultrasonic Stir Weld Processes

The thermal stir welding (TSW) process is finding applications in fabrication of space vehicles. In this process, workpieces to be joined by TSW are drawn, by heavy forces, between “containment plates,” past the TSW tool that then causes joining of the...

Briefs: Mechanical & Fluid Systems
Very-Low-Cost, Rugged Vacuum System

NASA, DoD, DHS, and commercial industry have a need for miniaturized, rugged, low-cost vacuum systems. Recent advances in sensor technology have led to the development of very small mass spectrometer detectors as well as other miniature analytical instruments. However, the vacuum systems to support these...

Briefs: Mechanical & Fluid Systems
Mechanism for Deploying a Long, Thin-Film Antenna From a Rover

Observations with radio telescopes address key problems in cosmology, astrobiology, heliophysics, and planetary science including the first light in the Universe (Cosmic Dawn), magnetic fields of extrasolar planets, particle acceleration mechanisms, and the lunar ionosphere. The Moon...

Briefs: Information Technology

G-CAT is a covariance analysis tool that enables fast and accurate computation of error ellipses for descent, landing, ascent, and rendezvous scenarios, and...

Articles: Aerospace

Long-duration spaceflight poses many hazards to the health of a space exploration crew, including physiological deconditioning of the musculoskeletal and cardiovascular systems due to...

Articles: Semiconductors & ICs

Part 1 of this article, which appeared in the August 2013 issue of NASA Tech Briefs, dealt with ON-state characterization of high power semiconductors (link to...

Articles: Motion Control

As early as 25 years ago, industrial system integrators saw the great potential that the Windows operating system brought to PCs. They saw the possibility of using the...

Articles: Motion Control

The proliferation of electronic control and electronic power conversion into a variety of industries (e.g., energy generation, industrial motor drives and control,...

Briefs: Mechanical & Fluid Systems
Conical Seat Shut- Off Valve

A moveable valve for controlling flow of a pressurized working fluid was designed. This valve consists of a hollow, moveable floating piston pressed against a stationary solid seat, and can use the working fluid to seal the valve. This open/closed, novel valve is able to use metal-to-metal seats, without requiring...

Briefs: Mechanical & Fluid Systems
Flexible Mechanical Conveyors for Regolith Extraction and Transport

A report describes flexible mechanical conveying systems for transporting fine cohesive regolith under microgravity and vacuum conditions. They are totally enclosed, virtually dust-free, and can include enough flexibility in the conveying path to enable an expanded range of...

Briefs: Electronics & Computers
Remote Memory Access Protocol Target Node Intellectual Property

The MagnetoSpheric Multiscale (MMS) mission had a requirement to use the Remote Memory Access Protocol (RMAP) over its SpaceWire network. At the time, no known intellectual property (IP) cores were available for purchase. Additionally, MMS preferred to implement the RMAP...

Application Briefs: Manufacturing & Prototyping

The Desert RATS (Research and Technology Studies) Space Exploration Rover has roamed the Arizona desert, maneuvering the terrain as the wind and temperatures swing from one extreme to another....

Briefs: Materials
Microgravity Storage Vessels and Conveying-Line Feeders for Cohesive Regolith

Under microgravity, the usual methods of placing granular solids into, or extracting them from, containers or storage vessels will not function. Alternative methods are required to provide a motive force to move the material. New configurations for microgravity...

Briefs: Materials

In a previous disclosure, the use of 60-NiTiNOL, an ordered intermetallic compound composed of 60 weight percent nickel and 40 weight percent titanium, was investigated as a material for advanced...

Briefs: Physical Sciences
Atomic Force Microscope Mediated Chromatography

The atomic force microscope (AFM) is used to inject a sample, provide shear-driven liquid flow over a functionalized substrate, and detect separated components. This is demonstrated using lipophilic dyes and normal phase chromatography. A significant reduction in both size and separation time...

Briefs: Physical Sciences

Oxygen used for extravehicular activities (EVAs) must be free of contaminants because a difference in a few tenths of a percent of argon or nitrogen content can mean...

Briefs: Information Technology
Sample Analysis at Mars Instrument Simulator

The Sample Analysis at Mars Instrument Simulator (SAMSIM) is a numerical model dedicated to plan and validate operations of the Sample Analysis at Mars (SAM) instrument on the surface of Mars. The SAM instrument suite, currently operating on the Mars Science Laboratory (MSL), is an analytical...

Articles: Photonics/Optics

Imagine a CCD camera operating on a long exposure and seeing only 1 electron per pixel every 16 minutes. That equates to dark current of less than 0.000001 electrons/pixel/sec. Imagine the same camera...

Briefs: Sensors/Data Acquisition

In situ analysis of rock chemistry is a fundamental tool for exploration of planets. To meet this need, a high-spatial- resolution micro x-ray fluorescence (Micro-XRF) instrument...

Briefs: Physical Sciences
Miniaturized, High-Speed, Modulated X-Ray Source

A low-cost, miniature x-ray source has been developed that can be modulated in intensity from completely off to full intensity on nanosecond timescales. This modulated x-ray source (MXS) has no filaments and is extremely rugged. The energy level of the MXS is adjustable from 0 to more than 100...

Briefs: Physical Sciences
Recirculating 1-K-Pot for Pulse-Tube Cryostats

A paper describes a 1-K-pot that works with a commercial pulse tube cooler for astrophysics instrumentation testbeds that require temperatures