Products: Robotics, Automation & Control
The MILE inductive encoder from Maxon Motor USA Inc., Fall River, MA, delivers up to 64 pulses at up to 120,000 rpm. Measuring 6mm in diameter, it is said to be the smallest inductive encoder available.
Briefs: Electronics & Computers
A proposed heterodyne receiver would be capable of detecting electromagnetic radiation in both of two orthogonal linear polarizations, separating sidebands, and providing...
Briefs: Electronics & Computers
A new approach to masterless, distributed, digital-charge control for batteries requiring charge control has been developed and implemented. This approach is required in battery chemistries that need cell-level...
Briefs: Semiconductors & ICs
Generic structures have been conceived for multiplexer blocks to be implemented in field-programmable gate arrays (FPGAs) based on four-gate field-effect transistors (G4FETs). This...
Briefs: Semiconductors & ICs
A system comprising very-large-scale integrated (VLSI) circuits is being developed as a means of bioinformatics-oriented analysis and recognition of patterns of fluorescence generated...
Briefs: Semiconductors & ICs
A three-stage monolithic millimeter-wave integrated-circuit (MMIC) amplifier designed to exhibit low noise in operation at frequencies from about 100 to somewhat above 180 GHz has been built and tested....
Briefs: Manufacturing & Prototyping
A system has been designed to reduce the hydrogen molecule content in inert gases that are used for shielding the welding arc and molten weld area during the manual fusion, automated welding, and induction brazing process. Two desiccant pipeline dryer cartridges are connected together using either...
Briefs: Materials
Copper tubes having diameters between about 100 and about 200 nm have been fabricated by electrodeposition of copper into the pores of alumina nanopore membranes. Copper nanotubes are under consideration as alternatives to copper nanorods and nanowires for applications involving thermal and/or...
Briefs: Materials
The use of hybridized carbon/silicon carbide (C/SiC) fabric to reinforce ceramic matrix composite face sheets and the integration of such face sheets with a foam...
Briefs: Mechanical & Fluid Systems
Some simple structural modifications have been demonstrated to be effective in reducing aerodynamic drag on vehicles that have empty open cargo bays. The modifications were originally...
Briefs: Mechanical & Fluid Systems
The term “rotary percussive autogopher” denotes a proposed addition to a family of apparatuses, based on ultrasonic/sonic drill corers (USDCs), that have been described in...
Briefs: Mechanical & Fluid Systems
Flow-splitting and flow-mixing thermally actuated spool valves have been developed for controlling flows of a heat-transfer fluid in a temperature-regulation system aboard the Mars Science Laboratory (MSL) rover. Valves like these could also be useful in terrestrial temperature-regulation...
Application Briefs: Photonics/Optics
Cylindrical optics module assembly machines ABTech Swanzey, NH 603-358-6431 www.abtechmfg.com
ABTech has completed the first of two cylindrical optics module assembly machines for Columbia University’s Nevis Astrophysics Laboratory. The multi-axis air bearing machine platforms are...
Application Briefs: Sensors/Data Acquisition
Charge coupled device (CCD) imaging sensors e2v Chelmsford, UK 44 (0)1245 493493 www.e2v.com
e2v CCD imaging sensors were launched recently on the Space Shuttle Atlantis as part of a mission to upgrade and repair the Hubble Space Telescope. The imaging sensors equip the Wide Field Camera 3...
NASA Tech Needs
John C. Stennis Space Center is embarking on a very ambitious era in its rocket engine propulsion test history. The first new large rocket engine test stand to be built at Stennis Space Center in...
Techs for License
This technology takes ZDDP — Zinc Dialkyl Dithiophos - phate, an anti-wear oil additive — and enhances it by adding fluorine to the chemical backbone. The resulting new molecule improves engine fuel economy by 3%, reduces engine wear from that available with conventional ZDDP, and...
Techs for License: Imaging
Successful performance of BFM (Basic Flight Maneuvers) presents the greatest challenge facing combat pilots. Acquiring and maintaining the required skills for dogfights is a long, complicated and costly process. The solution is a system that provides automatic assessment of a situation and automatic recommendation...
Articles: Robotics, Automation & Control
Today’s pumps, valves, and flow meters are being designed with greater accuracy and flexibility to handle a wide range of fluids, chemicals, and other materials. Demands for more...
Briefs: Mechanical & Fluid Systems
Modular exploratory robotic vehicles that will be able to reconfigure themselves in the field are undergoing development. These vehicles at the initial concept stage were described in...
Tech Needs
A company seeks technologies that enhance the duration that herbicides, insecticides, fungicides, and similar products are held at a targeted depth within the top layers of soil. Duration should be between 30 and 60 days. The targeted depth varies with the crop plant,...
Briefs: Materials
The next generation of reusable launch vehicles is likely to use GRCop-84 [Cu-8(at.%)Cr-4%Nb] copper alloy combustion liners. The application of protective coatings on GRCop-84 liners can minimize or eliminate many of the environmental problems experienced by...
Briefs: Materials
This invention is intended for use as a load-bearing device under cryogenic temperatures and/or abrasive conditions (i.e., during missions to the Moon). The innovation consists of small-diameter, ceramic fibers that are woven or braided into devices like ropes, belts, tracks, or...
Briefs: Materials
Elastomers are reinforced with functionalized, single-walled carbon nanotubes (SWNTs) giving them high- breaking strain levels and low densities. Cross-linked elastomers are prepared using amine-terminated, poly(dimethylsiloxane) (PDMS), with an average molecular weight of 5,000 daltons, and a...
Tech Needs
A company is searching for a disruptive technology relating to dispersible packaging materials. The material should easily dissolve in cold water and be 100% biodegradable in a short space of time, without compromising the strength and performance of the material for its given application. While paper-based...
Briefs: Materials
A method has been developed for improving heat flux performance relative to flat surfaces in spray-cooling systems. Similar enhancement techniques have been used for convective heat transfer, but, to the best knowledge at the time of this reporting, never spray cooling of...
Briefs: Materials
A chemical treatment reduces the convective and radiative contributions to the effective thermal conductivity of porous fibrous thermal-insulation tile. The net effect of the treatment is to coat the surfaces of fibers with a mixture of transition-metal oxides (TMOs) without filling the...
Briefs: Materials
As part of an effort to develop improved lightweight thermal-insulation tiles to withstand temperatures up to 1,000 °C, silica aerogel/fused-quartz- fiber composite materials containing La0.7Sr0.3MnO3 particles as opacifiers have been investigated as potentially offering thermal...
Briefs: Materials
A biologically inspired method has been developed for (1) separating single-wall carbon nanotubes (SWCNTs) from other materials (principally, amorphous carbon and metal catalysts) in raw production batches and (2) dispersing the SWCNTs as individual particles (in contradistinction to ropes...
Who's Who: Aerospace
Allen Parker is a systems engineer with expertise in the areas of fiber optics and data acquisition. He is currently part of the team that...