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Blog
CURRENT ATTRACTIONS
The Embedded Technology supplement to the Air Force Research Laboratory's Technology Horizons magazine features board-level electronics and COTS solutions for design engineers, as well as a variety of product offerings.
Blog
IMAGING DETECTORS
Rochester Institute of Technology and the University of Rochester recently won $847,000 from NASA's Astronomy Physics Research and Analysis program to build and test a detector that will capture sharper images and consume less power than technology currently in use. This new detector could transform imaging applications on NASA...
Blog
ROCK-AND-ROLL FANTASY
You're a master of the air guitar, playing along with your favorite rock band. But what if your air guitar actually made real music? A team of engineers at the Australian government's Commonwealth Scientific and Industrial Research Organization (CSIRO) has created the wearable instrument shirt (WIS), a T-shirt that lets...
Blog: Sensors/Data Acquisition
SENSOR NETWORKS
Computer science engineers at Washington University in St. Louis have developed wireless sensor networks with software agents that have been able to navigate a robot safely through a simulated fire, and spot a fire by seeking out heat. The sensor networks also can be used to protect containers in a manufacturing environment.
Blog
HUMAN AREA NETWORK
Engineers at Nippon Telephone & Telegraph (NTT, Tokyo, Japan) have developed three separate prototype devices that use a new electric field/photonics method allowing the surface of the body to be used as a safe, high-speed network transmission path. Called "RedTacton," a transmission path is formed at the moment a part of the...
Blog: Communications
WIRELESS POWER EMITTER
At Massachusetts Institute of Technology (MIT), a team led by assistant professor Marin Soljacic is developing a method to broadcast power to devices to charge them, rather than depending on cords and cables. Instead of irradiating the environment with electromagnetic waves, a power transmitter would fill the space around it...
Blog: Medical
PHANTOM PAIN TREATMENT
Researchers at the University of Manchester (Manchester, UK) have devised an experimental method of virtual reality for the treatment of phantom limb pain (PLP) experienced by some amputees. Using headsets, data gloves, and other sensors, amputees used their remaining physical limbs to control the movements of a...
Application Briefs: Sensors/Data Acquisition
580412 SE 20 Power Amplifier Package StratEdge Corp. San Diego, CA 858-569-5000 www.stratedge.com
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Application Briefs: Electronics & Computers
SpeckleCam Electronic Speckle Pattern Interferometer (ESPI) 4D Technology Tucson, AZ 520-294-5600 www.4dtechnology.com
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Products: Sensors/Data Acquisition
13-bit magnetic sensor
Renishaw, Hoffman Estates, IL, has introduced a 13-bit magnetic sensor for rotary and angular positioning control. Providing 8,192 counts per revolution, the sensors are available in chip, chip-on-board, and ready-to-mount packaged versions. The solid-state, non-contact design features an integrated circuit chip that senses...
Briefs: Test & Measurement
Simulator for Testing Spacecraft Separation Devices
A report describes the main features of a system for testing pyrotechnic and mechanical devices used to separate spacecraft and modules of spacecraft during flight. The system includes a spacecraft simulator [also denoted a large mobility base (LMB)] equipped with air thrusters, sensors, and...
Briefs: Test & Measurement
An apparatus for positioning and holding material specimens is a major subsystem of a system for impact testing of the specimens at temperatures up to 1,500 °C. This apparatus and the...
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Briefs: Test & Measurement
The figure shows a compact, rugged, simple sensor head that is part of an instrumentation system for making measurements to characterize the severity of aircraft-icing conditions...
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Briefs: Test & Measurement
A desk-sized apparatus for testing monoball bearings and their lubricants offers advantages, relative to prior such apparatuses, of (1) a greater degree of automation and (2) capability of...
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Briefs: Test & Measurement
Advances in Measurement of Skin Friction in Airflow
The surface interferometric skin-friction (SISF) measurement system is an instrument for determining the distribution of surface shear stress (skin friction) on a wind-tunnel model. The SISF system utilizes the established oil-film interference method, along with advanced image-data-processing...
Who's Who: Software
Searching for defects amid several thousand lines of code in mission critical software, NASA’s Independent Verification and Validating...
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Briefs: Electronics & Computers
The figure shows an instrument incorporating an infrared camera for detecting small hydrogen fires. The instrument has been developed as an improved replacement for prior infrared and ultraviolet...
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Briefs: Electronics & Computers
In a modified configuration of a coaxial probe feed for a layered printed-circuit antenna (e.g., a microstrip antenna), the outer conductor of the coaxial cable extends through the thickness of...
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Briefs: Electronics & Computers
Because such wavelengths are comparable to the characteristic dimensions of terrain features associated with negative hazards, a significant amount of diffraction would occur at such features. In...
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Articles: Communications
In celebration of the 30th Anniversary of NASA Tech Briefs, our features in 2006 highlight a different technology category each month, tracing the past 30 years of the technology, and continuing with a...
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Briefs: Medical
Thermal spore exposure vessels (TSEVs) are laboratory containers designed for use in measuring rates of death or survival of microbial spores at elevated temperatures. A major consideration in the design of a TSEV...
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Briefs: Medical
Enumerating Spore-Forming Bacteria Airborne With Particles
A laboratory method has been conceived to enable the enumeration of: Cultivable bacteria and bacterial spores that are, variously, airborne by themselves or carried by, parts of, or otherwise associated with, other airborne particles; and Spore-forming bacteria among all of the...
Briefs: Information Technology
A method of sequence detection has been proposed to mitigate the effects of inter-slot interference and inter-symbol interference (both denoted "ISI") in the reception of M-ary...
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Briefs: Information Technology
An algorithm searches a star catalog to identify guide stars within the field of view of a telescope or camera. The algorithm is fast: the number of computations needed to perform the...
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Briefs: Information Technology
Expectation-Based Control of Noise and Chaos
A proposed approach to control of noise and chaos in dynamic systems would supplement conventional methods. The approach is based on fictitious forces composed of expectations governed by Fokker-Planck or Liouville equations that describe the evolution of the probability densities of the controlled...
Briefs: Physical Sciences
Radio Heating of Lunar Soil To Release Gases
A report proposes the development of a system to collect volatile elements and compounds from Lunar soil for use in supporting habitation and processing into rocket fuel. Prior exploratory missions revealed that H2, He, and N2 are present in Lunar soil and there are some indications that water ice may...
Briefs: Physical Sciences
Using Electrostriction To Manipulate Ullage in Microgravity
A report proposes to use electrostriction to manipulate the ullage in a tank containing a dielectric liquid in a microgravitational environment. In the original intended application, the liquid would be a spacecraft propellant and the goal would be to force the ullage (comprising bubbles...
Briefs: Information Technology
Equations for Scoring Rules When Data Are Missing
A document presents equations for scoring rules in a diagnostic and/or prognostic artificial-intelligence software system of the rule-based inference- engine type. The equations define a set of metrics that characterize the evaluation of a rule when data required for the antecedence clause(s) of the...
Briefs: Electronics & Computers
Pseudorandom Switching for Adding Radar to the AFF Sensor
A document describes the proposed addition of a radar function to the Autonomous Formation Flying Sensor, making possible coarse relative-position control to prevent collisions in the event of failure of one of the spacecraft. According to the proposal, in addition to tracking GPS-like...

Ask the Expert

John Chandler on Achieving Quality Motion Control
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FAULHABER MICROMO brings together the highest quality motion technologies and value-added services, together with global engineering, sourcing, and manufacturing, to deliver top quality micro motion solutions. With 34 years’ experience, John Chandler injects a key engineering perspective into all new projects and enjoys working closely with OEM customers to bring exciting new technologies to market.

Inside Story

Inside Story: Trends in Packaging and Sterilization
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Eurofins Medical Device Testing (MDT) provides a full scope of testing services. In this interview, Eurofins’ experts, Sunny Modi, PhD, Director of Package Testing; and Elizabeth Sydnor, Director of Microbiology; answer common questions on medical device packaging and sterilization.