Here are innovative solutions for your biggest challenges in Electronics and Software - Power Supplies and Management, Board-Level Electronics, Components and Batteries. You’ll find applications essential to military, aviation, medical and automotive design engineering.

Briefs: Information Technology
Program for Visualization and Exploration of Scientific Data

WebWinds is an interactive computer program that aids the visualization and exploration of scientific data. WebWinds is the successor to LinkWinds, which was reported in "LinkWinds — Flexible Software for Highly Interactive Visual Data Analysis" (NPO-19786), NASA Tech Briefs, Vol....

Integrated signaling devices of a proposed type would utilize thermal coupling to transfer digital signals between electronic circuits that are required to be kept electrically isolated from...

Briefs: Electronics & Computers
Improved Ignitor and Keeper Power Supplies for Hall Thruster

Ignitor and keeper power supplies have been developed specifically for a Hall-effect thruster with a cold cathode. Prior to the development of these power supplies, difficulties had been observed in the operation of cold-cathode Hall thrusters; in particular, they did not start...

Briefs: Electronics & Computers
Development of a Range-Safety Smart System

Range Safety Officers (RSOs) are used by NASA and other government agencies to assure protection of life and property during launch operations. The current decision-making system used by the RSOs at NASA Wallops Flight Facility (WFF) and the National Ranges, including the Eastern Range (ER) and...

Briefs: Software
Program Predicts Jet Noise

MGBK is a computer program that predicts the mixing noise and the shock noise generated by a subsonic or low-supersonic jet, given input data on the mean flow and turbulence fields as predicted by a suitable state-of-the-art computational fluid dynamics (CFD) program. More specifically, MGBK can be regarded as a...

Briefs: Software
Program for Analyzing Static Transmission Error of Helical Gears

The computer program HeliStat performs finite-element analysis to simulate meshing of helical gears. This program is a logical extension of the program DANST, which applies to spur gears. [DANST was described in "Computing Stresses in Spur Gears (LEW-15420), NASA Tech Briefs, Vol....

Briefs: Software
Software for Multidisciplinary Analysis of Optical Systems

Integrated Modeling of Optical Systems (IMOS) is a MATLAB™ computer program that provides many functions for analysis of a system represented by mathematical models of its thermal, structural, control, and/or optical aspects. For example, IMOS can be used to study thermal distortion of...

Briefs: Software
Software for Multidisciplinary Analysis of Graded Composites

The Coupled Structural/Thermal/Electromagnetic (CSTEM) computer program implements an integrated multidisciplinary approach to analysis and optimization of the designs of graded composite-material structures. The name of the program reflects recognition of the coupling among thermal,...

Briefs: Software
Program Traces Rays With Quadruple Precision

QRAYPKS is a general-purpose FORTRAN optics-analysis computer program that enables the computation of path lengths to an unprecedented level of precision. The impetus for developing QRAYPKS was the need to mathematically model an outer-space laser interferometer to be used in detecting gravitational...

Briefs: Software
Program Summarizes Operational Data From a Complex System

Engineering Data Summarization Flight Software is a computer program designed for use aboard a spacecraft to implement a concept, called "beacon monitoring," that has been discussed in several prior NASA Tech Briefs articles. The program generates summaries of operational data (e.g.,...

Briefs: Software
Software for Acquiring Data on Dynamics of Magnetic Bearings

A computer program controls the automated acquisition, display, and reduction of data on the dynamics of magnetic bearings. The data gathered by use of this program are expected to enable the verification and enhancement of mathematical models of magnetic-bearing dynamics, thereby...

The Multi-Disciplinary Computing Environment (MDICE) is a software system for multidisciplinary analysis of complex engineering equipment, processes, and systems. Currently MDICE...

Briefs: Information Technology
Electronic Storage and Retrieval of Engineering Documents

The KSC Electronic Documentation System (KEDS) is a computer-intranet system at Kennedy Space Center (KSC) for the storage and retrieval of engineering drawings and other engineering documents that have been officially released. Prior to the development of the KEDS, microfilm copies of...

Optimization Modeling Assistant (OMA) is an expert-system computer program that assists its users in the development of mathematical and algorithmic models for optimization. As used...

Briefs: Information Technology
Interface Program for Generation of Computational Grids

Computer Aided Grid Interface (CAGI) is a computer program that serves as an interface between computer-aided design/computer-aided manufacturing (CAD/CAM) programs and computational fluid dynamics (CFD) programs. CAGI reads Initial Graphics Exchange Specification (IGES) files from CAD/CAM...

A recently developed theoretical and computational method is especially well suited for analyzing time-series data that represent nonstationary and nonlinear processes. The method stands in...

The figure schematically depicts a heterodyne photonic apparatus built around three continuous-wave, near-infrared diode lasers. This apparatus generates electromagnetic radiation...

Briefs: Electronics & Computers
Highly Efficient Thermoelectric Unicouples

Advanced unicouples that contain carefully tailored combinations of thermoelectric materials are being investigated in an effort to develop thermoelectric power generators that would operate with...

Briefs: Electronics & Computers
Using Light To Fabricate Photonic Devices

A developmental apparatus and process for the fabrication of photonic devices utilize intense, focused laser light projected and/or diffracted in controlled patterns. The apparatus and process can...

In today's manufacturing world, the need for ultraprecise position measurement and control grows as feature sizes shrink in the semiconductor industry and the world of...

Briefs: Electronics & Computers
Microelectromechanical SPDT Switches

Microelectromechanical single-pole, double-throw (SPDT) switches with predominantly planar configurations have been proposed for use in radio-frequency (RF) circuits. These switches would have overall...

Briefs: Electronics & Computers
Making Submicron Features by Ion Etching Through PMMA Masks

Experiments have shown that a substrate can be patterned with submicron features by the following procedure:

Briefs: Electronics & Computers
Reactive-Ion Etching of Smooth Vertical Walls in Silicon

An advanced technique of deep reactive-ion etching (DRIE) has been developed for fabricating smooth vertical walls in silicon wafers. These walls are suitable for use as bounding surfaces of optical waveguides in photonic and optoelectronic devices. The roughness of a typical 8-µm-high...

Briefs: Software
Software for Obtaining Ideal SAR Chirps

A computer program introduces a predistortion into the chirp signal used to frequency-modulate a synthetic-aperture-radar (SAR) signal at the transmitter. The predistortion is intended to compensate for distortions introduced by nonideal performance of the various pieces of SAR equipment — especially the...

Briefs: Information Technology
Software Collects Planning and Scheduling Requirements

Interim User's Requirements Collection (IURC) is a software system that generates an interactive graphical user interface that enables users of the International Space Station (ISS) to specify their payload-planning and -scheduling requirements via the World Wide Web (WWW). IURC...

Briefs: Information Technology
Software for Ground Processing of Data From Landsat 7

Three computer programs have been developed for ground processing of Enhanced Thematic Mapper Plus (ETM+) data from Landsat 7. The three programs and their functions are the following:

Briefs: Physical Sciences
Fast Observers for Spacecraft Pointing Control

A report discusses the design of fast stochastic observers for spacecraft pointing control. In this special context, "observers" signifies mathematical algorithms, implemented on computers aboard spacecraft, through which one processes sensory data (principally, the outputs of star trackers and...

The figure schematically depicts a flow-measurement system based on an acoustic sensor mounted on a pipe, along which flows a single or two-phase fluid. The electrical output of the...

Two airborne spectrum analyzers were developed for acquiring dynamic data, characterized by frequencies up to 25 kHz, from a hypersonic-crossflow-transition experiment aboard the...

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