Tech Briefs

A comprehensive library of technical briefs from engineering experts at NASA and major government, university, and commercial laboratories covering all aspects of innovations in electronics, software, photonics, imaging, motion control, automation, sensors, test, materials, manufacturing, mechanical, and mechatronics.

Briefs : Electronics & Computers
Chip with Micro-Hotplate for Self-Healing and Sustainable Electronics

Heat treatment, also known as annealing, is a common step in the semiconductor fabrication process. A buildup of radiation-induced localized charge within the...

Briefs : Photonics/Optics
New Laser for Improving Telecommunications and Computing

The first laser based on the wave physics phenomenon called bound states in the continuum (BIC) has been developed. The technology could revolutionize the development of surface...

Briefs : Energy
New Catalyst for Plastic Production Also Creates Hydrogen

Researchers have developed a new, low-cost catalyst for plastic production that turns a biorefinery product into a starting material for the synthesis of plastics, which could represent a sustainable alternative to widespread PET. At the same time, hydrogen can also be formed during the...

Briefs : Materials
SHEAth-based Rollable LEnticular-Shaped and Low-Stiction (SHEARLESS) Composite Booms

NASA's Langley Research Center has developed the SHEARLESS composite boom with a final cross-section shape that is lenticular and is flexible enough to...

Briefs : Semiconductors & ICs
Gated Chopper Integrator (GCI)

Microvolt-level signals require gains of at least a thousand. Offsets and noise in the amplifier chain will be amplified by the same amount, which can saturate the amplifier or swamp the signal so it is not resolvable. Other methods use chopping and/or autozero techniques to lower the offset and noise. The key...

Briefs : Materials
High-Power-Density Solid Oxide Fuel Cell

NASA's Glenn Research Center has developed a novel solid oxide fuel cell (SOFC) with five times the specific power density of currently available SOFCs. This highly efficient SOFC can operate on a...

Briefs : Photonics/Optics
Wide-Area Chemical Sensor

The detection and localization of gas releases, such as methane from leaking natural gas pipelines or nitrogen oxides from failing electrical equipment, require high sensitivity to the target gas and insensitivity...

Briefs : Motion Control
Device Detects Subatomic-Scale Motion

It is relatively easy to measure small movements of large objects, but is much more difficult when the moving parts are on the scale of nanometers, or billionths of a meter. The ability to accurately...

Briefs : Green Design & Manufacturing
Portable Acousto-Optic Spectrometers

Spectrometers are widely used for applications such as chemical analysis, remote sensing, quality control, environmental monitoring, spaceborne measurements, and optical measurements. Most spectrometers...

Briefs : Photonics/Optics
Dynamic Optical Grating Device for Modulating Light

NASA Langley Research Center has developed a novel optical grating device that dynamically modulates light and is capable of controlling the spectral properties and propagation of light...

Briefs : Motion Control
Inductive Non-Contact Position Sensor

The Inductive Non-Contact Position Sensor is a highly accurate sensor for motion control applications. The sensor was designed to monitor the precise movements of an optical inspection system that...

Briefs : Semiconductors & ICs
Alternating Current Photovoltaic Building Block

Today's photovoltaic power systems are generally comprised of a single photovoltaic module or multiple modules connected by combinations of series and parallel circuits as a photovoltaic array....

Briefs : Data Acquisition
Using Sound Waves to Produce Optical Isolators

There are challenges involved when using magnetically responsive materials to achieve the one-way flow of light in a photonic chip, including the ability to place compact magnets on a chip. In...

Briefs : Sensors/Data Acquisition
Blue-Light Imaging Sees Through Fire

A blue-light imaging method was developed that can be used to obtain visual data from large test fires where high temperatures could disable or destroy conventional electrical and mechanical sensors. The...

Briefs : Aerospace
Variable-Pitch Turbine Blades

Gas turbine blades of conventional rotorcraft turboshaft engines are optimized to operate at nearly a fixed speed and a fixed incidence angle. If the operating condition of the engine changes, then the flow...

Briefs : Materials
System Makes Opaque Materials Totally Transparent

Most naturally occurring materials have a disordered atomic structure that interferes with the propagation of both sound and electromagnetic waves. When the waves come into contact with these...

Briefs : Transportation
Submarine Swims Without an Engine

Researchers have developed a new propulsion concept for swimming robots that exploits temperature fluctuations in the water for propulsion without the need for an engine, propellant, or power supply.

Briefs : Mechanical & Fluid Systems
Reusable Breakaway Mounting Device

Breakaway devices are used to mount objects to systems or structures (for example, cars, drones, helmets, buildings) and prevent damage when the objects fall away from the system. Unfortunately, even in ideal scenarios, many of these devices have limitations. Breakaway bolts and shear pins have the complication...

Briefs : Energy
Battery Provides Electric Vehicles with Immunity from Climate Conditions

Conventional lithium-ion batteries cannot be rapidly charged at temperatures below 50 °F. Electric vehicles are popular on the West Coast because the weather is...

Briefs : Energy
Thermochromic Windows Convert Sunlight into Electricity

Relying on advanced materials such as perovskites and single-walled carbon nano-tubes, a window technology was developed that responds to heat by transforming from transparent to...

Briefs : Manufacturing & Prototyping
A New Twist Makes Rotating Machinery More Efficient and Quieter

Derived from a design approach for a new wing known as PRANDTL-D, this technology achieves similar improvements for propellers and other rotating machinery.

Briefs : Imaging
Active Pointing Monitor for a 2-Axis Optical Control System

NASA Goddard Space Flight Center has developed a pointing measurement detection and control system that monitors the real-time optical axis motions (such as tip and tilt) that affect image quality in aerial platforms. To date, there is no known real-time optical image alignment and...

White Papers : Electronics & Computers
Bringing Intelligence to Vibration Monitoring Solutions

In today’s competitive manufacturing environment, efficiency is more important than ever. Leading manufacturers are driving improvements based on real-time data. This white paper discusses several common obstacles for machine monitoring in the factory and introduces the all-in-one data...

Briefs : Manufacturing & Prototyping
Method Enables Electronic Components to be Printed Like Newspapers

Cellphones, laptops, tablets, and many other electronics rely on their internal metallic circuits to process information at high speed. Current metal fabrication techniques...

Briefs : Medical
Wireless System Pinpoints Location of Ingestible Implants

An “in-body GPS” system was developed that can pinpoint the location of ingestible implants inside the body using low-power wireless signals. These implants could be used as tiny tracking devices on shifting tumors to help monitor their slight movements. The system, called ReMix, can...

Briefs : Energy
Piezoelectric Resonator with Two Layers

Microelectromechanical systems (MEMS) filters have advantages in being able to reduce the size, weight, and power required when used as part of electronic systems such as radios; however, MEMS-type filters have limitations. For example, thickness MEMS-type filters (e.g., thickness-extensional mode...

Briefs : Materials
Nano-Additives Increase the Service Life of Concrete

A new method increases the service life of concrete structures by reducing the infiltration rates of deleterious ions. The key is a nano-sized additive that slows down penetration of...

Briefs : Medical
Kit Containing Stem Cells and Cytokines for Use in Attenuating Immune Responses

Stem cells have two distinct characteristics that distinguish them from other cell types. First, they are unspecialized and can self-renew for long periods without significant changes in their general properties. Second, under certain physiologic or experimental...

Briefs : Electronics & Computers
Self-Healing Metal Oxides for Corrosion Protection

Most metals, with the notable exception of gold, tend to oxidize when exposed to air and water. This reaction — which produces rust on iron, tarnish on silver, and verdigris on copper or...

Briefs : Sensors/Data Acquisition
A Biologically Inspired Method of Improving Systems and Survivability Through Self-Sacrifice

In human beings, the self-destruction behavior of human body cells is considered as an intrinsic safety mechanism of the human body. It seems that the lifetime of a cell is programmed, and that cells know when to commit suicide. This self-destruction is...

Technology Leaders

Webcasts

Upcoming Webinars: Software

Electric Drive Noise and Vibration Analysis

Upcoming Webinars: Medical

What Is A Sterilization Dose Audit and How are they Performed

Upcoming Webinars: Electronics & Computers

Solutions for Digital Battery Engineering

Upcoming Webinars: Green Design & Manufacturing

How to Optimize Environmental Monitoring Using Direct Mass...

Upcoming Webinars: Green Design & Manufacturing

How to Optimize Environmental Monitoring Using Direct Mass...

Upcoming Webinars: Electronics & Computers

Design and Simulation of an Inverter Power Module for Electric...

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