Briefs: Information Technology
Bilayer Protograph Codes for Half-Duplex Relay Channels

Direct to Earth return links are limited by the size and power of lander devices. A standard alternative is provided by a two-hops return link: a proximity link (from lander to orbiter relay) and a deep-space link (from orbiter relay to Earth). Although direct to Earth return links are...

Briefs: Information Technology
Influence of Computational Drop Representation in LES of a Droplet-Laden Mixing Layer

Multiphase turbulent flows are encountered in many practical applications including turbine engines or natural phenomena involving particle dispersion. Numerical computations of multiphase turbulent flows are important because they provide a cheaper alternative...

News
Heftier Unmanned Ground Vehicle Offers More Lifting, Hauling Strength

A small car can't pull a heavy trailer, and sports utility vehicles don't have a compact car's fuel efficiency. A perfect, one-size-fits-all vehicle doesn't exist, and the same goes for unmanned ground vehicles, known as UGVs.

Soldiers use UGVs – such as the 40-pound...

News
New Software Tool Tests Weapon Lethality Against Moving Targets

Military analysts now have a tool that brings together unprecedented modeling and simulation features to help them better choose or build weapons to overpower future threats. Such features allow military researchers to analyze, for example, how a grenade, artillery round or any...

News: Materials
Army Develops Stronger, Lighter Composite Materials

In the future, Army aircraft may be made of all composite materials, and the Prototype Integration Facility Advanced Composites Laboratory is ready. Part of the Aviation and Missile Research Development and Engineering Center's (AMRDEC's) Engineering Directorate, the Prototype Integration...

Part 1 of this article, which appeared in the August 2013 issue of NASA Tech Briefs, dealt with ON-state characterization of high power semiconductors (link to...

As early as 25 years ago, industrial system integrators saw the great potential that the Windows operating system brought to PCs. They saw the possibility of using the...

Application Briefs: Motion Control
Couplings Synchronize Motion in Pipe Bending System

Pines Technology’s (Westlake, OH) Model 250 Heavy Duty CNC bender is a powerful automatic precision system for fast, repeatable bending of tube and pipe up to 10" in diameter. Providing...

The proliferation of electronic control and electronic power conversion into a variety of industries (e.g., energy generation, industrial motor drives and control,...

Application Briefs: Manufacturing & Prototyping
NASA’s Next Rover Features 3D-Printed Parts

The Desert RATS (Research and Technology Studies) Space Exploration Rover has roamed the Arizona desert, maneuvering the terrain as the wind and temperatures swing from one extreme to another....

Application Briefs: Motion Control
Motors Power NASA’s Interactive Humanoid Tour Guide

RoboThespian is a programmable, interactive humanoid robot designed to communicate, interact, and entertain. First developed in 2006 by Cornish company Engineered Arts, RoboThespian...

Application Briefs: Test & Measurement
Data Management to Support Assembly and Integration of Orion

MEI Technologies is part of the ARES Technical Services Corp. team performing work at NASA’s Johnson Space Center in Houston for the Multi-Purpose Crew Vehicle (MPCV) Program...

Articles: Green Design & Manufacturing
Water Treatment Technologies Inspire Healthy Beverages

At NASA’s Johnson Space Center in the mid-1990s, Mike Johnson assisted the scientists who were developing technology to convert urine into drinking water. The research conducted by the...

A system for degassing hydrogen uses silicon nitride ceramic rotors. The technology’s rotors stir molten aluminum and disperse the gas. By adding bubbles of an inert gas, hydrogen is drawn...

Techs for License
CV Number Enables Tunable Ball Valves

A ball valve for process systems has a field-adjustable CV number. The CV number allows the valve to be “tuned” for its system. The ball, controlled by an actuator, is moved 0–90 degrees. An adjustable V-port then adjusts the CV number.

Tech Needs
Bacteria Elimination from Hard Surfaces

Long-term care facilities are subject to outbreaks of Clostridium difficile (C. diff) bacteria that form a hard shell, enter a vegetative spore state, and are thus able to withstand conventional cleaning. An active ingredient or mechanical/ electronic means must minimize the threat of C. diff and its...

Tech Needs
Insulating Coating for a Ceramic Substrate

A client seeks an insulating coating for a ceramic substrate and a method of applying it. Electrical leakage from one side of the substrate to the other causes damage. A thin coating is preferred for the application, but the critical specification is the relative permittivity of the coating, which...

Products: Motion Control
Instrumentation Valves

Brennan Industries (Cleveland, OH) offers a line of compression-end instrumentation valves available with single or double ferrule-style tube fittings. The NVB Series ball valves range in size from 1/8" to 3⁄4 " and...

Products: Motion Control
Linear Actuators

Exlar, a business group of Curtiss-Wright Controls (Chanhassen, MN), offers the K Series™ linear actuators with a 75-mm frame size. They combine roller screw technology in varying performance levels, and allow the use of...

Products: Robotics, Automation & Control
Motor Controller

Fairchild Semiconductor (San Jose, CA) has released the FCM8531 analog and digital integrated motor controller. The 3-phase, hybrid BLDC/PMSM controller offers two parallel processors — an advanced motor controller (AMC)...

Products: Motion Control
DC Brushed Motor

The RE 30 EB precious metal brushed motor from maxon precision motors (Fall River, MA) features a low startup voltage and a rated torque of 53 mNm. Other features include minimal highfrequency interference, ironless...

Products: Motion Control
Drive Module

ACS Motion Control (Eden Prairie, MN) offers SPiiPlusUDMlc compact EtherCAT dual/quad-axis drive for equipment utilizing small motors such as pick/place machines, tabletop motion platforms, and wide-format inspection/ assembly...

Products: Robotics, Automation & Control
Axis Calibrator

The XR20-W calibration system from Renishaw (Hoffman Estates, IL) wirelessly measures the angular position of rotary axes to within ±1 arc second for testing the accuracy of lathes, multi-axis ma chine tools, mill-turn...

Products: Robotics, Automation & Control
Motor Cables

HELUKABEL® (Elgin, IL) offers the TOPSERV® Hybrid PVC and TOPSERV® Hybrid PUR cables that allow machine end-users, OEM machine builders, and drive system manufacturers to combine the existing...

Products: Robotics, Automation & Control
Linear Guide Rails

Sterling Instrument (New Hyde Park, NY) has introduced the S99GWRM40 and S99GWRM80 series linear guide rail systems. The sliding element is a specially formulated polymer material suited for hard-anodized aluminum rails....

Products: Motion Control
Integrated Motors and Drives

Schneider Electric Motion USA (Marlborough, CT) has introduced Lexium MDrive integrated motors and drives in two motor sizes, NEMA 23 & 34, and two product versions. The Pulse/Direction version is a motor and...

Products: Motion Control
Piston Pump

HAWE Hydraulics (Charlotte, NC) offers the V40M axial piston pump for open circuits in mobile machines. It has a displacement volume of 2.75 in3/rev, and its swash plate design allows for fine-tuning of the...

Products: Motion Control
Integrated Drives and Motors

Applied Motion Products (Watsonville, CA) has introduced the SWM24 IP65-rated integrated drives and motors. The system fuses a motion controller to a high-torque NEMA24 step motor. The entire package is...

Products: Robotics, Automation & Control
Gear Drives and Motors

Boston Gear and Bauer Gear Motor, Altra Industrial Motion companies (South Beloit, IL) announced the addition of inline models to the Series 2000 right angle helical gear drives and gearmotors. The Boston Gear Series...

Videos