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.

-1
4410
30
Briefs: Data Acquisition
Visualization of fMRI Network Data
Functional connections within the brain can be revealed through functional magnetic resonance imaging (fMRI), which shows simultaneous activations of blood flow in the brain during response tests. However, fMRI specialists currently do not have a tool for visualizing the complex data that comes from fMRI scans....
Briefs: Sensors/Data Acquisition
Viewpoints Software for Visualization of Multivariate Data
Viewpoints software allows interactive visualization of multi-variate data using a variety of standard techniques. The software is built exclusively from high-performance, cross-platform, open-source, standards-compliant languages, libraries, and components. The techniques included are:
Briefs: Sensors/Data Acquisition
Controlling Fast Acquisition Hardware to Pre-Position a Satellite to Constrain Baseband Searches
When adapting GPS sensor technology from an aviation environment to a space environment, the search window for a satellite’s frequency and code phase is greatly increased. This problem is also magnified when multiple antennas are used. A new algorithm...
Briefs: Electronics & Computers
Self-Diagnostic Accelerometer Field Programmable Gate Array
The development of the self-diagnostic accelerometer (SDA) is important to both reducing the in-flight shutdowns (IFSD) rate — and hence reducing the rate at which this component failure type can put an aircraft in jeopardy — and also as a critical enabling technology for future...
Briefs: Electronics & Computers
Capacitively Coupled, High-Voltage Current Sensing for Extreme Environments
Wide-temperature and extreme-environment electronics are crucial to future missions. These missions will not have the weight and power budget for heavy harnesses and large, inefficient warm boxes. In addition, extreme-environment electronics, by their inherent nature, allow...
Briefs: RF & Microwave Electronics
E-textiles have shown great promise within the microwave and antenna community to provide a low-mass, highly conformal option that integrates extremely well with fabric-based microwave devices and antenna platforms, but...
Feature Image
Briefs: Photonics/Optics
Optical Fiber for Solar Cells
Polymeric and inorganic semiconductors offer relatively high quantum efficiencies, and are much less expensive and versatile to fabricate than non-amorphous silicon wafers. An optical fiber and cladding can be designed and fabricated to confine light for transport within ultraviolet and near-infrared media, using...
Briefs: Energy
A local energy source is desired for near-shore and offshore applications. Gas generators, diesel generators, and long-length submerged power cables tend to be expensive. A proposed solution is to use offshore wind...
Feature Image
Briefs: Energy
Carbon Nanotube Tower-Based Supercapacitor
A new technology to create electrochemical double-layer supercapacitors is provided using carbon nanotubes as electrodes of the storage medium. This invention allows efficient transport between the capacitor electrodes through the porous nature of the nanotubes, and has a low interface resistance between...
Briefs: Robotics, Automation & Control
To enable the human mobility necessary to effectively explore near-Earth asteroids and deep space effectively, a new extravehicular activity (EVA) jetpack is under development. The new...
Feature Image
Briefs: Robotics, Automation & Control
Artificial Immune System-Based Approach for Air Combat Maneuvering
A high level of autonomy is desired for future unmanned combat systems because lethality and survivability can be improved with much less communication bandwidth than would be necessary for preprogrammed or remotely operated systems. However, there are a number of technical...
Briefs: Robotics, Automation & Control
Rule-Based Analytic Asset Management for Space Exploration Systems (RAMSES)
Human space systems, such as the International Space Station (ISS) and future planned missions to the lunar surface and beyond, require the crew’s ability to locate and manage the physical resources that are required for use to achieve mission objectives. However, the...
Briefs: Energy
This work describes a discontinuous or segmented mirror whose overall flatness is less dependent on the limited tension that can be supplied by the booms. A solar sail is a large, nominally flat...
Feature Image
Briefs: Mechanical & Fluid Systems
A sampling device and a deployment method were developed that allow collection of a predefined sample volume from up to a predefined depth, precise sampling site selection, and low...
Feature Image
Briefs: Test & Measurement
Nozzle Heat Flux Gauge
This innovation is a tungsten-rhenium gauge that can be placed into an aft exit cone of a rocket motor. It will measure heat flux with time for the full duration of the RSRM (reusable solid rocket motor) nozzle environment with equal response time.
Briefs: Data Acquisition
NASA is developing technologies to enable in situ analysis and sample acquisition from planetary bodies. Missions to these diverse locations require autonomous, highly customizable, reliable tools. A...
Feature Image
Briefs: Photonics/Optics
Type-II interband cascade lasers (ICLs) based on the GaSb material system represent an enabling technology for laser absorption spectroscopy in the 3-to-5-μm wavelength...
Feature Image
Briefs: Materials
This invention describes systems and methods for implementing bulk metallic glass-based (BMG) macroscale gears with high wear resistance. This invention creates bulk metallic glasses (BMGs) with...
Feature Image
Briefs: Information Technology
Post-Flight Analysis Statistical Heating (PFlASH)
This software tool automates the statistical analysis of heating indicators for a family of trajectories. It allows for quick and clear relative comparison of the trajectories by concisely and meaningfully reducing an arbitrarily large set of body point heating into single values that are used to...
Briefs: Information Technology
Magnetic Sensitivity of a Ka-Band Isolator Measured Using the GRAIL Testbed
The magnetic sensitivity of a Ka-band isolator’s output phase is measured at 7 × 10–4 deg/G level. This high degree of precision is enabled by the sensitive phase measuring capabilities of a testbed built to mimic NASA’s Gravity Recovery and Interior Laboratory...
Briefs: Information Technology
Open-Source, Platform-Neutral BLAS Library
New hybrid computing systems consist of a multicore CPU (central processing unit) and one or more massively parallel accelerator devices, such as GPUs (graphics processing units). Effectively utilizing these systems involves using all of the available computational resources, which may be difficult to...
Briefs: Software
JPL Unified Methodology Process (JUMP)
JPL Unified Methodology Process (JUMP) is an effort to establish a common frame of reference across OCIO (Office of Chief Information Officer) and EBIS (Enterprise Business Information Services Division). The iterative approach to project management is more powerful and efficient, enables better reviews, and...
Briefs: Information Technology
Automated Evaluation Software (AES) Web Application
The Automated Evaluation Software Web application was created using Java Enterprise technologies, which provided capabilities for dynamic report generation and Microsoft output. The Tomcat Application server makes the application robust, fast, and reliable. HTML 4.0 was used to create the user...
Briefs: Software
A RESTful Web Service Connector for Phoenix Analysis Server
Engineering design models are normally developed using specific modeling tools such as Excel, Matlab, Maple, and Mathematica. It is difficult to connect various models written in different modeling environments and produce results without extensive effort. Phoenix ModelCenter is a...
Briefs: Sensors/Data Acquisition
Method for Performing GPS L1 C/A Measurements in Wideband Jamming and Interference
For effective range safety, global positioning system (GPS) metric tracking must be robust to interference with, and jamming of, GPS signals. The conventional approach to mitigating interference and jamming is to use a Controlled Reception Pattern Antenna (CRPA)....
Briefs: Sensors/Data Acquisition
JWST IV&V Simulation and Test (JIST) RT Logic T501 Emulator
In order to develop a software-only test environment for the James Webb Space Telescope (JWST) mission, a solution was needed to send commands and receive telemetry between the TCTS (Telemetry and Command Test Set) and CMM-S card. The as-is solution requires the utilization of commercial...
Briefs: Sensors/Data Acquisition
In this innovation, a team successfully developed and implemented a combined convective and conductive cooling system that permits rapid cooling. Using...
Feature Image
Briefs: Sensors/Data Acquisition
Guarded Two-Dimensional Flat Plate Insulation Test Calorimeter with Attach Points
Insulation systems usually do not operate on their own; they must work together with a structural system that is designed to support the article being insulated. Typically this structure penetrates the insulation, degrading it in some manner, and gives a pathway for...
Briefs: Sensors/Data Acquisition
Test, Calibration, and Training Target for a Microwave Sensor
Human subjects are unsuitable for objective performance testing of victim detection radar because their heart and respiration rates are not controllable or repeatable. There are limitations on human targets from a safety standpoint as well. It is difficult to relate the ground truth to...

Videos