Briefs: Materials
Water-based pressure-sensitive paints (PSPs) have been invented as alternatives conventional organic- solvent-based pressure-sensitive paints, which are used primarily for indicating distributions of air...
Briefs: Software
Computing Isentropic Flow Properties of Air/ R-134a Mixtures
MACHRK is a computer program that calculates isentropic flow properties of mixtures of air and refrigerant R-134a (tetrafluoroethane), which are used in transonic aerodynamic testing in a wind tunnel at Langley Research Center. Given the total temperature, total pressure, static...
Briefs: Software
Java Mission Evaluation Workstation System
The Java Mission Evaluation Workstation System (JMEWS) is a collection of applications designed to retrieve, display, and analyze both real-time and recorded telemetry data. This software is currently being used by both the Space Shuttle Program (SSP) and the International Space Station (ISS) program....
Briefs: Software
Software for Automated Generation of Cartesian Meshes
Cart3D is a collection of computer programs for generating Cartesian meshes [for computational fluid dynamics (CFD) and other applications] in volumes bounded by solid objects. Aspects of Cart3D at earlier stages of development were reported in "Robust and Efficient Generation of Cartesian...
Briefs: Software
Using a Quadtree Algorithm To Assess Line of Sight
A matched pair of computer algorithms determines whether line of sight (LOS) is obstructed by terrain. These algorithms were originally designed for use in conjunction with combat-simulation software in military training exercises, but could also be used for such commercial purposes as...
Briefs: Mechanical & Fluid Systems
Predicting Tail Buffet Loads of a Fighter Airplane
Buffet loads on aft aerodynamic surfaces pose a recurring problem on most twin-tailed fighter airplanes: During maneuvers at high angles of attack, vortices emanating from various surfaces on the forward parts of such an airplane engine inlets, wings, or other fuselage appendages) often burst,...
Briefs: Mechanical & Fluid Systems
An instrumentation system rapidly and repeatedly determines the horizontal location of the center of gravity of a laboratory vehicle that slides horizontally on three air bearings (see...
Briefs: Mechanical & Fluid Systems
Water-filled containers are used as building blocks in a new generation of containment systems for testing high-speed flywheels. Such containment systems are needed to ensure safety...
Briefs: Software
Optics Program Modified for Multithreaded Parallel Computing
A powerful high-performance computer program for simulating and analyzing adaptive and controlled optical systems has been developed by modifying the serial version of the Modeling and Analysis for Controlled Optical Systems (MACOS) program to impart capabilities for multithreaded...
Briefs: Photonics/Optics
An apparatus denoted a laser image contrast enhancement system (LICES) increases the contrast with which one can view a target glowing with blackbody radiation (a white-hot object)...
Briefs: Photonics/Optics
Dual-Laser-Pulse Ignition
A dual-pulse laser (DPL) technique has been demonstrated for generating laser-induced sparks (LIS) to ignite fuels. The technique was originally intended to be applied to the ignition of rocket propellants, but may also be applicable to ignition in terrestrial settings in which electric igniters may not be suitable....
Products: Photonics/Optics
Semrock (Rochester, NY) offers the ultra-broadband MaxMirror in a 2-in. (50.4 mm) diameter version. According to the manufacturers, the 2-in. mirror is designed for use in imaging systems or for the...
Products: Photonics/Optics
The FieldSpec 3 field spectroradiometer from Analytical Spectral Devices (Boulder, CO) offers Ethernet and wireless connectivity for remote data collection of up to 150 feet away in addition to built-in diagnostics,...
Products: Photonics/Optics
Spectra-Physics’ (Mountain View, CA) newest addition to the Mai Tai Ti:Sapphire laser product line delivers more than 2.5 W of average power and is now available with a 700-1020 nm tuning range. The laser is fully...
Products: Photonics/Optics
Designed for medical applications, the TrueFrame FT50M CCD image sensor from DALSA (Waterloo, ON, Canada) comes in a 1k × 1k-pixel array with 5.6 × 5.6-μm square pixels. Combined with high linear dynamic range of 67 dB,...
Products: Photonics/Optics
Optiwave Systems’ (Ottawa, ON, Canada) OptiFDTD 6.0 optical design software for passive and nonlinear photonic components brings Finite-Difference Time-Domain modeling and simulation to photonics and...
Products: Photonics/Optics
Micro Photonics (Irvine, CA) has introduced the Standard Pin-On-Disk and High Load Tribometers. Developed for high-temperature operations, high loads, and high rotational speeds up to 6000 rpm, the...
Products: Photonics/Optics
The fourth generation of Cedip Infrared Systems’ (Croissy, Beaubourg, France) JADE IR cameras includes enhanced sensitivity (< 20 mK), faster frame rate, and a new windowing mode. The frame rate can be changed...
Products: Photonics/Optics
The Kyma line of solid state lasers from Melles Griot (Carlsbad, CA) offers improved stability and performance by requiring fewer parts than diode pumped solid state (DPSS) lasers. Kyma technology supports...
Products: Photonics/Optics
Bookham (San Jose, CA) has introduced a high-power, uncooled multimode pump laser module for fiber laser pumping that combines high power with high reliability and stable performance. The new multimode pump laser...
Products: Photonics/Optics
Liekki Application Designer v3.0 from Liekki (Way Gambrills, MD) is a simulation and design software environment for fiber lasers and amplifiers with new transient analysis capability. Liekki’s v3.0...
Briefs: Photonics/Optics
Silicon waveguides have strong light confinement properties due to a very high index core (silicon, refractive index ~3.5) material surrounded by a much lower index glass (silica,...
Products: Photonics/Optics
JAI’s (San Jose, CA) CV-A436 machine vision camera uses the latest generation of VGA resolution progressive scan 1⁄3-in. imager that allows the compact head size of 17 mm (diameter) and 46 mm (length). The...
Briefs: Electronics & Computers
Data-Analysis System for Entry, Descent, and Landing
A report describes the Entry Descent Landing Data Analysis (EDA), which is a system of signal-processing software and computer hardware for acquiring status data conveyed by multiple-frequency-shiftkeying tone signals transmitted by a spacecraft during descent to the surface of a remote...
Briefs: Semiconductors & ICs
A fault-tolerant computer architecture has been conceived in an effort to reduce vulnerability to single-event upsets (spurious bit flips caused by impingement of energetic ionizing...
Briefs: Electronics & Computers
Hybrid Power Management
An engineering discipline denoted as hybrid power management (HPM) has emerged from continuing efforts to increase energy efficiency and reliability of hybrid power systems. HPM is oriented toward integration of diverse electric energy-generating, energy-storing, and energy-consuming devices in optimal configurations for...
Briefs: Electronics & Computers
A proposed hybrid ultraviolet (UV) image sensor would comprise a planar membrane array of face-up AlGaN/GaN photodiodes integrated with a complementary metal oxide/semiconductor...
Briefs: Electronics & Computers
A proposed instrument, intended mainly for use as a magnetometer, would include an optoelectronic oscillator (OEO) stabilized by an atomic cell that could play the role of a...
Briefs: Semiconductors & ICs
An improved apparatus has been designed and built for use in precise positioning and pressing of a microchip onto a substrate (which could, optionally, be another microchip) for the...
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