February 2012

Briefs: Information Technology
Interactive Schematic Integration Within the Propellant System Modeling Environment

Task requirements for rocket propulsion test preparations of the test stand facilities drive the need to model the test facility propellant systems prior to constructing physical modifications. The Propellant System Modeling Environment (PSME) is an initiative...

Briefs: Information Technology
Magnetic and Electric Field Polarizations of Oblique Magnetospheric Chorus Waves

A theory was developed to explain the properties of the chorus magnetic and electric field components in the case of an arbitrary propagation angle. The new theory shows that a whistler wave has circularly polarized magnetic fields for oblique propagation. This...

Briefs: Information Technology
Variable Sampling Mapping

The performance of an optical system (for example, a telescope) is limited by the misalignments and manufacturing imperfections of the optical elements in the system. The impact of these misalignments and imperfections can be quantified by the phase variations imparted on light traveling through the system. Phase...

Products: Photonics/Optics
Organic Solar Cell Initiative

Imec (Leuven, Belgium) has announced the European FP7 project X10D, an initiative aimed at developing tandem organic solar cells with an increased conversion efficiency and lifetime. The ultimate goal of the...

Articles: Electronics & Computers
Designing High-Speed, Rugged Data Recorders

High-speed recorders represent a major share of electronic instrumentation found in commercial, industrial, scientific research, government, and defense applications. Each system captures specific...

In the space industry, much of the effort to refine system engineering processes has been done by hand using tools as divergent as Microsoft PowerPoint to IBM Rational...

Products: Electronics & Computers
32-Bit Microcontrollers

Microchip Technology (Chandler, AZ) has announced low-pincount, 32-bit PIC32 microcontrollers (MCUs) that provide 61 DMIPS of performance in packages 5 × 5 mm. The PIC32 “MX1” and “MX2” MCUs feature dedicated...

Products: Electronics & Computers
Data Review Tool

The PeerReview Complete™ tool from SmartBear Software (Beverly, MA) allows engineers to share, review, and annotate schematics, 2D drawings, diagrams, images, HTML, and other digital content. PeerReview Complete features...

Products: Electronics & Computers
Evaluation Boards

Bourns (Riverside, CA) offers two evaluation boards for RS-485-port interfaces. The boards use Bourns® TBU® High-Speed Protectors (HSPs), GDTs, TVS diodes, and MOV products. The Bourns RS-485EVALBOARD1 includes two...

Products: Electronics & Computers
Membrane Switches

APEM Components (Haverhill, MA) has announced a range of customized, ergonomic, low-power membrane switches. The switches can be made with either non-tactile or tactile feedback through sound and light indication. The...

The United States has set 2015 as a goal to reach grid parity (that point where solar electricity is equal to grid electricity). No matter your thoughts on regulatory...

Application Briefs: Robotics, Automation & Control
Springs and Couplings Keep Mars Science Laboratory Rover on Track

NASA’s Mars Science Laboratory Rover “Curiosity” is the biggest rover to roam the Red Planet, measuring almost the size of a standard car. The rover is expected to land...

Engineers at NASA’s Ames Research Center in Moffett Field, CA, needed to redesign the engine cowling of their Systems Integration Evaluation Remote Research...

Ensuring the health, safety, and effective performance of astronauts is critical to the human exploration of space. During missions to the Moon, Mars, or asteroids, crewmembers must have access to...

Techs for License
Synthetic Material Offers Touch-Feel of Genuine Leather

A synthetic leather material delivers a durable touch-feel. The design is based on the way that the human fingertip interacts with surfaces along four different axes of material properties. The fingertip determines whether a surface is soft or hard, smooth or coarse, wet or dry, and warm or...

Techs for License
Piezoelectric-Actuated Valves Bring Accuracy to Process Control Systems

The PACE Hf, a high-flow proportional valve utilizing a Parker Advanced Technology actuator, delivers 180 slpm of air at 30 psi. The product has low power requirements: steadystate 0.6 Watts max, cycling 15 Hz, 1.2 Watts. The Viva piezoelectric actuator provides...

Tech Needs
Increased Steel Surface Friction

An organization seeks innovative processes or coatings for steel. The application requires that a normal force be applied between two lubricated steel surfaces. Excessive normal force results in system power losses and increase in wear; the desired solution will permanently increase the coefficient of friction so...

Tech Needs
Halogen-Free Fire Retardants

A company must achieve standard, non-halogenated fire retardancy on cabling. Methods may include plastic compounds, coatings, polymers, or additives. The UL tests define the fire-retardant properties that the cable must exhibit after treatment — notably, ignition resistance, flame spread resistance after ignition,...

Articles: Robotics, Automation & Control
Motion Control and System Engineering Considerations

Motion control choices are best made in light of the whole system architecture, as the selection of system architecture will drive not only the implementation and integration stages of the...

Mechatronics can be defined as the science to optimize the performance and capabilities of machines using a multi-domain synergistic design approach. It is also...

Products: Motion Control
Rodless Actuators

Parker’s Electromechanical Automation Division (Irwin, PA) announced the Light Capacity Rodless (LCR) actuator series that offers the ability to purchase a complete engineered motion solution with an optional onboard...

Products: Robotics, Automation & Control
Clutches

Industrial Clutch (Waukesha, WI) has introduced the Model HC/CH clutch designed for use in marine applications including drawworks, winches, and propulsion. The clutches feature a key seal that allows the use of standard O-rings and...

Products: Robotics, Automation & Control
Brushless Motor

Maxon Motor (Fall River, MA) offers a 70- Watt flat brushless motor that delivers a maximum continuous torque of 130 mNm at an efficiency of up to 85%. The motor measures 45 mm in diameter and is available with Hall sensors....

Products: Motion Control
Three-Phase Motor

Lenze Americas (Uxbridge, MA) has released the L-Force Three-Phase MF Motor design for operation with a frequency inverter. The motor can be up to two sizes smaller than conventional asynchronous motors with the same rated...

Products: Robotics, Automation & Control
Soft Starter

ABB (New Berlin, WI) has released the PSE soft starter family with two-phase torque control. Additional features include built-in class-selectable electronic overload, built-in bypass, and an LCD display. The PSE features a...

Products: Motion Control
Linear Rail Platform

Haydon Kerk Motion Solutions (Waterbury, CT) offers the Kerk® RGS/RGW linear rail platform that includes a 180° folded- over motorized design for motion applications where space is at a premium. The rail contains all...

Products: Motion Control
Machine Automation Controller

Omron Industrial Automation (Schaumburg, IL) has released the NJ-Series Machine Automation Controller (MAC) that integrates multiple, specialized controllers (motion, logic, sequence, vision, operator safety,...

Products: Motion Control
Torque Wrench

Advanced Torque Products (Berlin, CT) offers the ATP 40000 mechanical torque multiplier, a digitally controlled wrench that produces up to 40,000 ft/lbs. The device employs all-mechanical operation, which eliminates the need...

Products: Motion Control
Direct Drive Motor Systems

Applimotion (Loomis, CA) has introduced custom direct drive motor systems with precision encoders and bearings. The systems incorporate frameless motor kits into application-specific direct drive motors for special...

Products: Motion Control
Voice Coil Motor

Equipment Solutions (Sunnyvale, CA) has introduced the RVC-5 rotational voice coil motor that creates rotational translation using a flexure bearing. The rotational translation is achieved by tilting a precision mirror,...

Products: Robotics, Automation & Control
Metal Gear Motors

Nidec Copal U.S.A. Corp. (Torrance, CA) offers the MG16B brush and LB16MG brushless metal planetary gear motors. The metal planetary gear train allows for higher torque and protection against shock and vibration loads....

Products: Motion Control
Servo Drive

Portescap (West Chester, PA) offers the LVD low-voltage servo drive designed to support small and large brushed DC or brushless motors. Packed in a high-power-density package, it is powered from a supply voltage of 12-48 VDC, and...

Products: Motion Control
Motion System Design Software

MOTIONEERING® Application Engine 6.2.0 motion system sizing and selection software from Kollmorgen (Radford, VA) utilizes a mechanism project concept to collect and save load information for multiple axes,...

Articles: Aerospace
Ames Research Center

NASA Ames Research Center is located in the heart of California’s Silicon Valley, surrounded by high-tech companies, universities, and laboratories. With over $3 billion in capital equipment, 2,500 research personnel,...

Dr. Bruce Wielicki, senior Earth scientist within the Science Directorate at Langley Research Center, works as lead of the Climate Absolute Radiance and...

News: Software
New Tool Appraises PV Systems

Scientists at Sandia National Laboratories, in partnership with Jamie Johnson of Solar Power Electric™, have developed PV Value™ - an electronic form to standardize appraisals of homes and businesses outfitted with photovoltaic (PV) installations.

ANSYS, Canonsburg, PA, has launched ANSYS® 14.0 engineering simulation technology software that includes ANSYS Workbench™, the framework for the suite. Updates include enhanced customized work flows,...

Podcasts
Dr. Bruce Wielicki, Senior Earth Scientist, Langley Research Center, Hampton, VA

Dr. Bruce Wielicki, senior Earth scientist within the Science Directorate at Langley Research Center, works as lead of the Climate Absolute Radiance and Refractivity Observatory (CLARREO) mission. The Tier-1 earth science decadal survey initiative will anchor a...

Briefs: Physical Sciences
Optical Comb From a Whispering Gallery Mode Resonator for Spectroscopy and Astronomy Instruments Calibration

The most accurate astronomical data is available from space-based observations that are not impeded by the Earth’s atmosphere. Such measurements may require spectral samples taken as long as decades apart, with the 1 cm/s velocity...

Briefs: Software
Techniques for Down-Sampling a Measured Surface Height Map for Model Validation

This software allows one to down-sample a measured surface map for model validation, not only without introducing any re-sampling errors, but also eliminating the existing measurement noise and measurement errors.

Briefs: Physical Sciences
Mirror Metrology Using Nano-Probe Supports

Thin, lightweight mirrors are needed for future x-ray space telescopes in order to increase x-ray collecting area while maintaining a reduced mass and volume capable of being launched on existing rockets. However, it is very difficult to determine the undistorted shape of such thin mirrors because the...

Capillary electrophoresis is an analytical technique that can be used to detect and quantify extremely small amounts of various biological molecules. In the search for biochemical traces of life...

Briefs: Physical Sciences
Multi-Component, Multi-Point Interferometric Rayleigh/Mie Doppler Velocimeter

An interferometric Rayleigh scattering system was developed to enable the measurement of multiple, orthogonal velocity components at several points within very-high-speed or high-temperature flows. The velocity of a gaseous flow can be optically measured by sending...

Briefs: Information Technology
Real-Time Flight Envelope Monitoring System

The objective of this effort was to show that real-time aircraft control-surface hinge-moment information could be used to provide a robust and reliable prediction of vehicle performance and control authority degradation. For a given airfoil section with a control surface — be it a wing with an...

Briefs: Software
Nemesis Autonomous Test System

A generalized framework has been developed for systems validation that can be applied to both traditional and autonomous systems. The framework consists of an automated test case generation and execution system called Nemesis that rapidly and thoroughly identifies flaws or vulnerabilities within a system. By...

Briefs: Electronics & Computers
Frequency to Voltage Converter Analog Front-End Prototype

The frequency to voltage converter analog front end evaluation prototype (F2V AFE) is an evaluation board designed for comparison of different methods of accurately extracting the frequency of a sinusoidal input signal. A configurable input stage is routed to one or several of five...

Briefs: Electronics & Computers
Dust-Tolerant Intelligent Electrical Connection System

Faults in wiring systems are a serious concern for the aerospace and aeronautic (commercial, military, and civilian) industries. Circuit failures and vehicle accidents have occurred and have been attributed to faulty wiring created by open and/or short circuits. Often, such circuit failures...

Briefs: Electronics & Computers
Gigabit Ethernet Asynchronous Clock Compensation FIFO

Clock compensation for Gigabit Ethernet is necessary because the clock recovered from the 1.25 Gb/s serial data stream has the potential to be 200 ppm slower or faster than the system clock. The serial data is converted to 10-bit parallel data at a 125 MHz rate on a clock recovered from the...

Briefs: Electronics & Computers
High-Speed, Multi-Channel Serial ADC LVDS Interface for Xilinx Virtex-5 FPGA

Analog-to-digital converters (ADCs) are used in scientific and communications instruments on all spacecraft. As data rates get higher, and as the transition is made from parallel ADC designs to high-speed, serial, low-voltage differential signaling (LVDS) designs, the...

Briefs: Manufacturing & Prototyping
Glovebox for GeoLab Subsystem in HDU1-PEM

The GeoLab glovebox was designed to enable the preliminary examination, by astronauts, of geological samples collected from the surface of another planetary body. The collected information would then...

Briefs: Manufacturing & Prototyping
Modified Process Reduces Porosity When Soldering in Reduced Gravity Environments

A modified process yields lower levels of internal porosity for solder joints produced in reduced-gravity environments. The process incorporates both alternative materials and a modified procedure. The process provides the necessary cleaning action to enable...

Briefs: Materials
Three Dimensionally Interlinked, Dense, Solid Form of Single-Walled CNT Ropes

A 3D networked, dense form of single-walled carbon nanotubes (SWNT) has been made through isotropic shrinking of a gel-like SWNT-water paste by very slow evaporation. Approximately 35 g of Raw HiPco nanotubes were cleaned by the method of soft baking (250 °C for 15...

Briefs: Materials
Flexible Plug Repair for Shuttle Wing Leading Edge

In response to the Columbia Accident Investigation Board report, a plug repair kit has been developed to enable astronauts to repair the space shuttle’s wing leading edge (WLE) during orbit. The plug repair kit consists of several 17.78-cm-diameter carbon/ silicon carbide (C/SiC) cover plates...

Briefs: Materials
Use of Functionalized Carbon Nanotubes for Covalent Attachment of Nanotubes to Silicon

The purpose of the invention is to covalently attach functionalized carbon nanotubes to silicon. This step allows for the introduction of carbon nanotubes onto all manner of silicon surfaces, and thereby introduction of carbon nanotubes covalently into...

Briefs: Mechanical & Fluid Systems
Magnetic Interface for Segmented Mirror Assembly

Newly developed magnetic devices are used to create an interface between adjacent mirror segments so that once assembled, aligned, and phased, the multiple segments will behave functionally equivalent to a monolithic aperture mirror. One embodiment might be a kinematic interface that is reversible...

To be able to conduct science investigations on highly sloped and challenging terrains, it is necessary to deploy science payloads to such locations and collect and process in...

Briefs: Mechanical & Fluid Systems
Transpiration-Cooled Spacecraft-Insulation-Repair Fasteners

Transpiration-cooled fasteners are proposed that operate like an open-loop heat pipe (self-tapping screws, bolts, and spikes) for use in on-orbit repair of thermal-insulation of a space shuttle or other spacecraft. By limiting the temperature rise of such a fastener and of the adjacent...

Briefs: Mechanical & Fluid Systems
Site Tamper and Material Plow Tool — STAMP

A non-actuated tool has been developed for preparing regolith for in situ measurement by smoothing uneven surfaces and excavating fresher subsurface material for planetary exploration. The STAMP...

This sensor unit is designed to determine the level of activation of lunar dust or simulant particles using a fluorescent technique. Activation of the surface of a lunar soil...

Briefs: Physical Sciences
Aperture Ion Source

The aperture ion source was conceived to eliminate distortion in measurements of angular distributions of neutral atoms and molecules that require electronimpact ion sources. The approach simplifies the coupling between ion source and spectrometer while providing virtually distortion-free angular distributions and improved...

Briefs: Information Technology
Model-Based Fault Diagnosis: Performing Root Cause and Impact Analyses in Real Time

Generic, object-oriented fault models, built according to causal-directed graph theory, have been integrated into an overall software architecture dedicated to monitoring and predicting the health of mission- critical systems. Processing over the generic fault...

News: Materials
A Bio-Solar Breakthrough

An international team of researchers has developed a process that improves the efficiency of generating electric power using molecular structures extracted from plants. The system taps into photosynthetic processes...

News
Army Tests Special Ops Weapon For Conventional Units

With the need for Soldiers in Afghanistan to engage the enemy at longer distances, Picatinny Arsenal has completed initial training and fielding of a weapon for traditional Army units previously used only by special operations commands. The Multi-Role Anti-Armor Anti-Personnel Weapon System,...

News
Wool Being Reevaluated for High-Performance Combat Clothing

Natick Soldier Research, Development, and Engineering Center has contracted for several efforts with the American Sheep Industry Association and its subsidiary, Sheep Venture Company, to develop, test and evaluate wool fabrics for combat clothing. The decision to take a second look at...

News
Army Drives Ahead With Joint Light Tactical Vehicle Program

The U.S. Army has issued a request for proposal for the Engineering and Manufacturing Development phase of the Joint Light Tactical Vehicle program. The Joint Light Tactical Vehicle, or JLTV, family will balance critical weight and transportability constraints within performance,...

News
NIRS Device Monitors Stroke Patients

A research team led by investigators at Mayo Clinic in Florida has found that a small device worn on a patient's brow can be useful in monitoring stroke patients in the hospital. The device measures blood oxygen, similar to a pulse oximeter, which is clipped onto a finger.

The tool, known as frontal...

News
Nanorods Self-Assemble into 3D Structures

A technique for inducing nanorods – rod-shaped semiconductor nanocrystals – to self-assemble into one-, two-, and three-dimensional macroscopic structures will enable more effective use of nanorods in solar cells, magnetic storage devices, and sensors. The development should also help boost the...

Products: Green Design & Manufacturing
Bioplastic Enclosures

OKW Enclosures, Inc. (Bridgeville, PA) is now offering its design-oriented standard plastic enclosures in a bioplastic material. This biomaterial is manufactured from renewable raw materials and is formulated to replace...

News: Lighting
Welding Nanowires With Light

Electrically conductive meshes made of metal nanowires promise exceptional electrical throughput, low cost, and easy processing in applications like video displays, LEDs, and thin-film solar cells. However, in processing, these meshes must be heated or pressed to unite the crisscross pattern of nanowires that form...

Question of the Week
Will a majority of consumers wear "smart clothing?"

A team of researchers from Ecole Polytechnique de Montreal in Canada has focused on making soft versions of multitouch screens, batteries, microchip transistors, and other electronics. Those technologies could lead to "smart clothing" that, for example, monitors a person's health signs, or even...

News
Elastic Technology Monitors Electrical Impulses

New circuitry is able to monitor and deliver electrical impulses into living tissue. The elastic electronics are made of tiny, wavy silicon structures containing circuits that are thinner than a human hair, and bend and stretch with the body.

The elastic technology attempts to bridge the gap...

News
Highway Charging System Wirelessly Transmits Electric Currents

A Stanford University research team has designed a high-efficiency charging system that uses magnetic fields to wirelessly transmit large electric currents between metal coils placed several feet apart. The long-term goal of the research is to develop an all-electric highway that...

Videos: Manufacturing & Prototyping
Web Tool Analyzes Solar Cell Materials

An online tool developed by MIT researchers called “Impurities to Efficiency” - or I2E - allows companies or researchers exploring alternative manufacturing strategies to plug in descriptions of...

News
'Nanoantennas' Show Promise In Optical Innovations

Researchers have shown how arrays of tiny "plasmonic nanoantennas" are able to precisely manipulate light in new ways that could make possible a range of optical innovations such as more powerful microscopes, telecommunications and computers.

News
Researchers Increase Solar Concentrator Efficiency

A team of researchers at the University of California, Merced, has redesigned luminescent solar concentrators to be more efficient at sending sunlight to solar cells. The advancement could be an important breakthrough for solar energy harvesting, said UC Merced physics Professor Sayantani Ghosh,...

Products
DPSS Lasers

Spectra-Physics® (Santa Clara, CA), a Newport Corporation brand, has introduced two new industrial Q-switched lasers for 24/7 microelectronics manufacturing applications. The Pulseo® 355-Turbo™ features advanced ultraviolet...

Carltex, Inc. (Nyack, NY) has introduced a new line of Microscope LCD Digital Tablet/Cameras which are ideal for any microscope that is used in Education, Industry, Medical and R&D applications. Available in 2.0 MP...

Andor Technology plc (Belfast, Northern Ireland) has launched the latest addition to its new iStar range of high-performance, scientific-grade ICCDs. The new iStar 312T imaging platform provides ultrafast acquisition rates...

Products
Optical Sensor

Maxim Integrated Products Inc. (Sunnyvale, CA) has introduced the MAX44000, a digital ambient-light and infrared proximity sensor that detects light like a human eye. Designed using the company’s proprietary BiCMOS...

News
Semi-Autonomous Legged Robot Lightens Troops' Load

The Army has identified physical overburden as one of its top five science and technology challenges. To help alleviate physical weight on troops, DARPA is developing a highly mobile, semi-autonomous legged robot, the Legged Squad Support System (LS3), to integrate with a squad of Marines or...

News
Thermodynamics Model Assesses Shape-Memory Alloys

Recent earthquake damage has exposed the vulnerability of existing structures to strong ground movement. At the Georgia Institute of Technology, researchers are analyzing shape-memory alloys for their potential use in constructing seismic-resistant structures.

Georgia Tech researchers have...

A technique for creating a new molecule that structurally and chemically replicates the active part of the widely used industrial catalyst molybdenite has been developed by researchers at Berkeley Lab. This...

Researchers at University of Georgia's Plant Genome Mapping Laboratory have mapped the genomes of two originator cells of Miscanthus x giganteus - a large perennial grass with promise as a source...

Question of the Week
Will hovering aircraft become commonplace?

A new study led by Jun Zhang, a Professor at NYU's Courant Institute, determined that hovering in mid-air might actually depend more on weight distribution than once thought. The researchers used pyramid-shaped paper "bugs," which were kept afloat in a stream of blown air. Contrary to...

News
MRI Method Examines Batteries from the Inside

Researchers at Cambridge University, Stony Brook University, and New York University have developed methodology to improve battery performance and safety by serving as a diagnostic of its internal workings.

Because radio frequency fields do not penetrate metals, one can actually perform very...

News
3D Map Reveals How Earthquake Faults Behave

Geologists have built a new tool to study how earthquakes change the landscape down to a few inches, offering insight into how earthquake faults behave. A team of scientists from the U.S., Mexico, and China reports a comprehensive before-and-after picture of an earthquake zone, using data from the...

Through the DOE's SunShot Incubator program, over $12 million in funding is available to accelerate innovation in solar energy and manufacturing - supporting advancements in hardware,...

News
Superlattices Improve Infrared Photodetection

Arizona State University engineers are working on technological advances that promise to help enhance infrared photodetection used in sophisticated weapons and surveillance system, industrial and home security systems, medical diagnostics and night vision equipment for law enforcement and driving...

News
'Cloaking' Device Could Protect Buildings From Vibrations, Natural Disasters

University of Manchester mathematicians have developed the theory for a ’cloaking’ device which could protect buildings from earthquakes. By cloaking components of structures with pressurised rubber, powerful waves such as those produced by an earthquake would not...

Sandia National Laboratory researchers have developed a family of liquid salt electrolytes - known as MetILs - that could lead to better batteries and well as devices that can help incorporate large-scale...

News
Information System Enables Safer Emergency Aircraft Landings

Aviation researchers at the Queensland University of Technology (QUT) in Australia are developing an information system to help Unmanned Aerial Vehicles (UAVs) make safer emergency landings and better enable their wider commercial use. Dr. Luis Mejias Alvarez said UAVs could not fly in...

News
NASA and Industry Team Up on Lean, Green Aircraft

Leaner, greener flying machines for the year 2025 are on the drawing boards of three industry teams under contract to the NASA Aeronautics Research Mission Directorate's Environmentally Responsible Aviation (ERA) Project. Teams from The Boeing Company, Lockheed Martin, and Northrop Grumman have...

News
Stanford Aerospace Engineers Debut Open-Source Fluid Dynamics Software

Stanford University Unstructured is an open-source software package that gives advanced engineering students a crucial leg up on the time-consuming process of writing their own code to optimize aerospace design.

Question of the Week
The Future of Quantum Computing

Using a single phosphorus atom embedded in a silicon crystal, physicists have built a working transistor, laying the groundwork for a quantum computer that is smaller than today's silicon-based machines, and may one day function in nanoscale environments. Quantum computers may make it possible to quickly simulate...

News
New System Allows Robots to Continuously Monitor Environment

A system, being developed by researchers at MIT’s Computer Science and Artificial Intelligence Laboratory (CSAIL), allows robots to navigate through constantly changing surroundings. The technology builds and continuously updates a three-dimensional map of an environment using a...

News
Computer Scientists Study the Underground World of Plants

Plant and computer scientists can now study the underground world of plants with more accuracy and clarity. The revolutionary technique will improve chances of breeding better crop varieties and increasing yields.

Developed at The University of Nottingham by a team of experts from the...

Graphene has been touted as the next silicon, but it is too conductive to be used in computer chips. A University of Manchester team led by Nobel laureates Professor Andre Geim and Professor Konstantin...

Power Felt is a new thermoelectric device developed by researchers at the Center for Nanotechnology and Molecular Materials at Wake Forest University. By touching a small...

Emerson Network Power (Carlsbad, CA) has released an updated version of its integrated 250-W ATCA® power entry module and DC-DC bus converter. The ATCR250-48D12-03J integrates a...

Linear Technology Corporation (Milpitas, CA) introduces the LTC2974 power supply manager with EEPROM for digital management of power supply systems with four or more power rails. The LTC2974 utilizes an I²C interface...

ZMDI (Dresden, Germany) has introduced a family of 1, 2, and 3A current-mode synchronous buck DC/DC converter integrated circuits (ICs) tailored for ease of design, quick product development, and low bill of...

Products
Programmable DC-DC Integrated Circuits

Summit Microelectronics (Sunnyvale, CA) has expanded its family of programmable DC-DC integrated circuits with the SMB206A and SMB210A. The SMB206A and SMB210A support advanced power management for ENERGY STAR® applications. These include digital LCD/LED/plasma/IP televisions, digital cable/satellite/IP...

Products
Low-Dropout Regulator for Portable Devices

The TLV710 and TLV711 series of dual, low-dropout (LDO) linear regulators from Texas Instruments (Dallas, TX) are low quiescent current devices with excellent line and load transient performance. These LDOs are designed for power-sensitive applications. These devices provide a typical accuracy of 2%...

Products
TRIAC Dimmable LED Driver

The new design example (DER-302) from Power Integrations (San Jose, CA) describes a non-isolated, high-efficiency, high power factor (PF), TRIAC dimmable LED driver designed to drive a nominal LED string voltage of 36 V at 200 mA from an input voltage range of 185 VAC to 265 VAC (47 Hz — 65 Hz).

News
Self-Propelled Medical Device Moves Through Bloodstream

For years, scientists had searched for the secret to making tiny implantable devices that could travel through the bloodstream. Engineers at Stanford have demonstrated a wirelessly powered device that can be implanted or injected into the human body and powered using electromagnetic radio...

News
'Power Felt' Technology Holds Promise in Thermoelectrics

By touching a small piece of Power Felt – a promising new thermoelectric device developed by a team of researchers – body heat can be turned into an electrical current.

Potential uses for Power Felt include lining automobile seats to boost battery power and service electrical needs,...

News
Tongue Drive System Goes Inside the Mouth to Improve Performance

The Tongue Drive System is a wireless device that enables people with high-level spinal cord injuries to operate a computer and maneuver an electrically powered wheelchair by moving their tongues. The latest prototype of the system, developed at Georgia Tech, allows users to wear...

News
Industrial Robot Renders Accurate Human Portraits

A robot installation developed by artists in the Robotlab at the Center for Art and Media ZKM in Karlsruhe, Germany - some of whom are now employed at the Fraunhofer Institute for Optronics, System Technologies, and Image Exploitation IOSB - successfully sketches human portraits. “We have used...

News
Microrocket Propels Itself Through Human Stomach and Other Acidic Environments

Scientists at the University of California, San Diego have developed a new kind of tiny motor — which they call a “microrocket” — that can propel itself through acidic environments, such as the human stomach, without any external energy source. Joseph Wang...

Using high-precision microscopy and X-ray scattering techniques, University of Oregon researchers have gained new insights into the process of applying green chemistry to...

Videos