Stories
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Articles: Software
Acoustic micro imaging uses a moving transducer that pulses ultrasound into materials and receives the return echoes from material interfaces. Images made from the echo signals may show anomalies...
Application Briefs: Software
CodeSonar, Coverity Prevent, and Uno softwareGrammaTechIthaca, NY607-273-7340www.grammatech.com
The results of a ten-month study by 30 NASA engineers of possible electronic causes of...
Products: Test & Measurement
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...
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 software,...
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...
Briefs: Electronics & Computers
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 winter...
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 when...
Briefs: Energy
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 and...
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. This...
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 produces...
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 of...
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 camera,...
Briefs: Information Technology
Receive Mode Analysis and Design of Microstrip Reflectarrays
Traditionally microstrip or printed reflectarrays are designed using the “transmit mode” technique. In this method, the size of each printed element is chosen so as to provide the required value of the reflection phase such that a collimated beam results along a given direction. The...
Briefs: Information Technology
Chance-Constrained Guidance With Non-Convex Constraints
Missions to small bodies, such as comets or asteroids, require autonomous guidance for descent to these small bodies. Such guidance is made challenging by uncertainty in the position and velocity of the spacecraft, as well as the uncertainty in the gravitational field around the small body. In...
News: Green Design & Manufacturing
Acoustics researchers at the University of Adelaide in Australia are developing a computer model to predict the noise output from wind farms so they can accurately and quickly assess the effectiveness of...
INSIDER Product: Electronics & Computers
The ZT8540 I/Q Digitizer from ZTEC Instruments (Albuquerque, NM) functions as a baseband Vector Signal Analyzer (VSA) from DC to 300 MHz. This new baseband VSA provides the signal fidelity and real-time processing capabilities...
INSIDER Product: Electronics & Computers
MathWorks (Natick, MA) has announced the availability of MATLAB Coder, which
enables design engineers to automatically generate readable, portable C and
C++ code directly from their MATLAB algorithms. This new product...
INSIDER Product: Electronics & Computers
Meggitt Sensing Systems (San Juan Capistrano, CA) has introduced the Endevco® model 133, a three-channel general purpose piezoelectric signal conditioner with a wide bandwidth of 100 KHz (-3 dB corner),...
INSIDER Product: Electronics & Computers
Allegro MicroSystems (Worcester, MA) has announced two new robust automotive grade buck regulators with high switching frequency and output current, each integrating a low resistance, high-side, N-channel MOSFET....
INSIDER Product: Electronics & Computers
Elan Digital System’s (Fareham, UK) USBHC869 USB interface chip now has a Demonstrator PCB including SDK driver code to help engineers simplify and speed up the development task of implementing the capability of the...
Supplements: Software
Comsol News - 2011
In the following user stories, nineteen diverse high-tech organizations showcase how their adoption of COMSOL Multiphysics has led to new product designs and research findings.
Table of Contents // COMSOL NEWS 2011
FEATURES
Multiphysics 4 Multiphysics Analysis of a Burning Candle 5 Capacitively Coupled Plasma Analysis ...
Briefs: Green Design & Manufacturing
A design of a highly efficient and lightweight space magnetic cooler has been developed at Goddard Space Flight Center that can continuously provide remote/distributed cooling at temperatures in the range of 2 K with a heat sink at about 15 K. The innovative design uses a cryogenic circulator that enables the cooler to operate at a high cycle frequency to achieve a large cooling capacity.
Briefs: Energy
Polymer nanofibers are nanoscale materials whose properties can be adjusted to provide desirable light management performance for high efficiency solid-state lighting...
News: Green Design & Manufacturing
An international team of scientists led by a team at Monash University of Melbourne, Australia has found that the key to the hydrogen economy could come from a very simple mineral -...
News: Green Design & Manufacturing
Advanced biofuels are highly touted as potential replacements for gasoline, diesel, and jet fuels. Equally touted is the synthesis of these fuels through the use of microbes. However, many...
Products: Lighting
Endicott Research Group, Inc. (ERG) (Endicott, NY) has updated its online LCD-LED Driver Cross- Reference Guide. The online guide has datasheets on over 200 drivers supporting more than 150 OEM panels. It...
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Webcasts
Upcoming Webinars: AR/AI
The Real Impact of AR and AI in the Industrial Equipment Industry
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Next-Generation Linear and Rotary Stages: When Ultra Precision...
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SAE Automotive Engineering Podcast: Additive Manufacturing
Podcasts: Defense
A New Approach to Manufacturing Machine Connectivity for the Air Force
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Streamlining Manufacturing with Integrated Digital Planning and Simulation
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