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Products: Robotics, Automation & Control
Gee Plus (Elgin, SC) has announced the VM2436 voice coil actuator that provides bi-directional linearity over a maximum linear stroke of 0.59". It develops a peak force of almost 11 ounces in a package size of 0.94" outside...
Products: Robotics, Automation & Control
Nanomotion (Ronkonkoma, NY) offers the MM industrial servo motor that provides unlimited rotary or linear motion with 0.17 N of driving force and velocity to 235 mm/sec. The motor measures 9 × 17 × 5 mm and weighs 5 grams. It...
Products: Robotics, Automation & Control
Copley Controls (Canton, MA) offers the ServoTube actuator with twin outrigger bearings designed for applications subject to high side loading. A ball-bushing option with steel bearing rails provides maximum side-loading...
Products: Robotics, Automation & Control
Allegro MicroSystems (Worcester, MA) has announced the A1441 full-bridge motor driver designed to drive single-phase, low-voltage, bipolar brushless DC motors. Commutation of the motor is achieved by the use of one Hall element to...
Products: Motion Control
Datastick Systems (Campbell, CA) offers the VSA-1212 vibration spectrum analyzer, a PDA-based vibration analyzer that uses off-the-shelf ICP®-type piezoelectric accelerometers for machine condition monitoring and...
Products: Robotics, Automation & Control
Lexair (Lexington, KY) has announced the Lexair/ Production Dynamics Full Bore® chuck, a mechanical-grip, air-release, front-mounted collet chuck designed to make the full spindle bore available to handle larger bar stock. The...
Briefs: Mechanical & Fluid Systems
Large Deployable Reflectarray Antenna
A report discusses a 7-meter-diameter reflectarray antenna that has been conceived in a continuing effort to develop large reflectarray antennas to be deployed in outer space. Major underlying concepts were reported in three prior NASA Tech Briefs articles: "Inflatable Reflectarray Antennas" (NPO-20433), Vol....
Products: Robotics, Automation & Control
Pittman® Brushless DC servomotors from PennEngineering® Motion Technologies (Harleysville, PA) feature a slotless stator design for applications in data storage, medical, semiconductor, and automation. Features include low...
Briefs: Mechanical & Fluid Systems
A proposed device would remove bubbles of gas from a stream of liquid (typically water), accumulate the gas, and periodically release the gas, in bulk, back into the stream. The device is intended...
Products: Robotics, Automation & Control
Exlar Corp. (Chanhassen, MN) has introduced the Exlar I Series electro-mechanical actuator with roller screw technology. Users have a choice of motor brand and type, including brushless servo, stepper, DC, or AC...
Briefs: Electronics & Computers
Modular, Microprocessor-Controlled Flash Lighting System
A microprocessor- controlled lighting system generates brief, precisely timed, high- intensity flashes of light for scientific imaging at frame rates up to about 1 kHz. The system includes an array of light-emitting diodes (LEDs) that are driven in synchronism with an externally generated...
Briefs: Electronics & Computers
Highly Efficient Multilayer Thermoelectric Devices
Multilayer thermoelectric devices now at the prototype stage of development exhibit a combination of desirable characteristics, including high figures of merit and high performance/cost ratios. These devices are capable of producing temperature differences of the order of 50 K in operation at or...
Briefs: Electronics & Computers
A method has been proposed for extracting information on the rate of rotation of an aircraft, spacecraft, or other body from differential Doppler shifts of Global Positioning System...
Briefs: Electronics & Computers
A digital video camera system has been qualified for use in flight on the NASA supersonic F-15B Research Testbed aircraft. This system is capable of very-high-speed color digital...
Briefs: Software
Madsen Giersing, an Australian consulting engineering firm that specializes in marine engineering and construction solutions, was commissioned to design a new bulk liquids berth...
Briefs: Photonics/Optics
Whispering-gallery-mode (WGM) optical resonators of a type now under development are designed to support few well-defined waveguide modes. In the simplest case, a resonator of this type would support...
Briefs: Photonics/Optics
Electrically Tunable Terahertz Quantum-Cascade Lasers
Improved quantum-cascade lasers (QCLs) are being developed as electrically tunable sources of radiation in the far infrared spectral region, especially in the frequency range of 2 to 5 THz. (Heretofore, the wavelengths of QCLs have been adjusted by changing temperatures, but not by changing...
Briefs: Semiconductors & ICs
A system of electronic instrumentation, constituting the equivalent of a two-port vector network analyzer, has been developed for use in on-wafer measurement of key electrical characteristics...
Briefs: Semiconductors & ICs
PVM Enhancement for Beowulf Multiple-Processor Nodes
A recent version of the Parallel Virtual Machine (PVM) computer program has been enhanced to enable use of multiple processors in a single node of a Beowulf system (a cluster of personal computers that runs the Linux operating system). A previous version of PVM had been enhanced by addition of a...
Briefs: Semiconductors & ICs
Programs for Testing Processor-in-Memory Computing Systems
The Multithreaded Microbenchmarks for Processor-InMemory (PIM) Compilers, Simulators, and Hardware are computer programs arranged in a series for use in testing the performances of PIM computing systems, including compilers, simulators, and hardware. The programs at the beginning of the...
Briefs: Medical
Biomimetic/optical sensors have been proposed as means of real-time detection of bacteria in liquid samples through real-time detection of compounds secreted by the bacteria. Bacterial...
Briefs: Medical
Analysis of Membrane Lipids of Airborne Micro-Organisms
A method of characterization of airborne micro-organisms in a given location involves (1) large-volume filtration of air onto glass-fiber filters; (2) accelerated extraction of membrane lipids of the collected micro-organisms by use of pressurized hot liquid; and (3) identification and...
Briefs: Medical
A noninvasive, sensitive method of diagnosing certain pathological conditions of the human heart involves computational processing of digitized...
Briefs: Mechanical & Fluid Systems
A proposed data-fusion system, to be implemented mostly in software, would further process the digitized and preprocessed outputs of sensors in a turbofan engine to detect...
Briefs: Mechanical & Fluid Systems
Future nuclear-powered Ion-Propulsion- System-propelled spacecraft such as Jupiter Icy Moon Orbiter (JIMO) will carry more than 10,000 kg of xenon propellant. Typically, a small...
Briefs: Physical Sciences
Four methods of detection of bodies of water are under development as means to enable autonomous robotic ground vehicles to avoid water hazards when traversing off-road terrain. The...
Products: Imaging
Matrox Graphics, Montreal, Canada, has introduced DualHead2Go™, an external device that connects to the monitor connector of a computer to add support for an extra monitor. The operating system treats the device like a...
Briefs: Information Technology
A new robust method of automated real-time diagnosis of faults in an aircraft engine or a similar complex system involves the use of a bank of Kalman filters. In order to be highly...
Briefs: Information Technology
Conflict-Aware Scheduling Algorithm
A conflict-aware scheduling algorithm is being developed to help automate the allocation of NASA's Deep Space Network (DSN) antennas and equipment that are used to communicate with interplanetary scientific spacecraft. The current approach for scheduling DSN ground resources seeks to provide an equitable...
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Webcasts
Upcoming Webinars: AR/AI
The Real Impact of AR and AI in the Industrial Equipment Industry
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Next-Generation Linear and Rotary Stages: When Ultra Precision...
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SAE Automotive Engineering Podcast: Additive Manufacturing
Podcasts: Defense
A New Approach to Manufacturing Machine Connectivity for the Air Force
On-Demand Webinars: Manufacturing & Prototyping
Streamlining Manufacturing with Integrated Digital Planning and Simulation
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