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Electronics & Computers

Vote for Tech Briefs Product of the Year 2021

These 12 products are the nominees for the 2021 Tech Briefs Readers’ Choice Product of the Year.

Briefs
Sensors/Data Acquisition

Method Detects Onset of Destructive Oscillations in Aircraft Turbines

Early flutter detection will help in the development of safer and more eco-friendly aircraft turbines.

Briefs
Materials

Oxide Dispersion Strengthened Medium Entropy Alloy

This additively manufactured alloy is tailored for high-temperature applications.

Application Briefs
Manufacturing & Prototyping

Turbine Rotor Assembly Systems

RPI UK has installed two integrated rotor measurement and assembly platforms (iMAPs) at Atlanta-based Delta Airlines;

Articles
Propulsion

New Ampere EV Motor Aims for Power, Torque Benchmarks

Consider an EV traction motor rated at 220 kW and weighing 10 kg (22 lb). Is it too good to be true? “We’ll find out within nine months when we build it,” said Ian Foley,...

Articles
Defense

Bringing Turbine Power to Small Aircraft

A regenerative, high-temperature heat exchanger doubles the efficiency of low-power turbines.

Articles
Propulsion

Limiting Creep in Aerospace Materials

Creep is an especially important consideration for engineers designing jet engine turbines.

Briefs
Electronics & Computers

Environmental Barrier Coatings for Ceramic Matrix Composites

These barrier coatings protect high-performance components in extreme environments.

Articles
Electronics & Computers

Microturbine Propulsion for UAVs

The continued use of reciprocating engines has limited the UAV market’s ability to reach its true growth potential.

News
Energy

Powering Back to the Future

Credit Leonardo DaVinci for creating what many historians believe was the first depiction of a self-powered vehicle. It was powered by springs. And in the centuries since then, engineers have found...

Briefs
Materials

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
Test & Measurement

Burner Rig Testing of A500® C/SiC

There is growing interest in developing, testing, and deploying ceramic-matrix composites (CMCs) into commercial and military aerospace gas turbine engines due to their durability under extreme conditions...

Articles
Energy

Developing an Alternative Engine Concept

As the transportation industry begins to enter the next stage of power sources, a wave of new options is becoming available to consumers. What was once an industry dominated by gasoline...

Briefs
Test & Measurement

Nano Layer Helps Measuring Devices Withstand Extreme Environments

Measurement devices that can withstand the acid rains on Venus, radiation in space, and the heat of car engines are being developed to improve research in these extreme...

Application Briefs
Sensors/Data Acquisition

Data Optimization Technology Helps Wind Farm Operator Examine Costs

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Seattle, WA
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Avangrid Renewables is a subsidiary of Avangrid, Inc., and part of the Spain-based Iberdola Group, the largest wind...

Briefs
Materials

Compositions Comprising Nickel-Titanium, Methods of Manufacture Thereof, and Articles Comprising the Same

NASA's Glenn Research Center has developed high-temperature solid lubricant materials suitable for foil gas bearings that enable the...

Briefs
Materials

Advanced Multilayer Environmental Barrier Coatings

Innovators at NASA’s Glenn Research Center have created exciting new developments in thermal barrier coatings, both in the chemical compositions of the coatings and in the process by which they are applied. NASA’s researchers have developed a revolutionary bond coat system that improves the...

Briefs
Aerospace

Film Cooled Surface

Turbine film cooling flows typically are subject to jet detachment and reduced cooling effectiveness for high blowing rates. Current concepts to improve jet attachment involve impractical or overly complex hole designs...

Briefs
Energy

Fully Premixed, Low-Emission, High-Pressure, Multi-Fuel Burner

NASA’s Glenn Research Center has developed a novel design for a fully premixed, high-pressure burner capable of operating on a variety of gaseous fuels and oxidizers, including...

Briefs
Mechanical & Fluid Systems

Fluidic Oscillator Array for Synchronized Oscillating Jet Generation

NASA’s Langley Research Center develops innovative technologies to control fluid flow in ways that will ultimately result in improved performance and fuel efficiency....

Application Briefs
Test & Measurement

Reducing Torque Measurement Uncertainty in Turbine Engine Testing

Torque is among the most important of all the measured quantities in applications ranging from characterizing high-power gas turbines, to determining the level of force...

Articles
Aerospace

Powering On

The steady rise in demand for high-thrust, big-fan engines for new wide-body commercial airplanes continues to generate massive business, as the 2015 half-year results from Rolls-Royce demonstrated. But at the same time,...

Briefs
Materials

Mechanical Carbon Materials for Aircraft Seal Applications

Modern mechanical carbon materials are being used in a wide variety of applications, including aircraft gear boxes, air turbine motor starters, and main shaft seals for both aircraft...

Briefs
Energy

Pumped Subsea Energy Storage

A local energy source is desired for near-shore and offshore applications. Gas generators, diesel generators, and long-length submerged power cables tend to be expensive. A proposed solution is to use offshore...

Briefs
Software

Multi-Species Turbulent Mixing Under Supercritical-Pressure Conditions

A model describing supercritical-pressure, multi-species turbulent mixing has been developed to simulate situations prevailing in diesel, gas turbine, and HCCI (homogeneous charge compression ignition) engines. It is also a situation occurring in atmospheric planetary...

Mission Accomplished
Medical

Superconductors Enable Lower Cost MRI Systems

The future looks bright, light, and green—especially where aircraft are concerned. The division of NASA’s Fundamental Aeronautics Program called the Subsonic Fixed Wing Project is aiming to...

Briefs
Physical Sciences

Blade Tip Clearance Sensors for Engine Health Monitoring

Blade health monitoring continues to gain interest as a means of assessing the health of turbine airfoils in aerospace and ground-based gas turbine engines in fleet operation. Many...

Articles
Energy

Turbomachinery Solutions for Green and Renewable Energy

For more than two decades, nearly all renewable energy endeavors have incorporated the latest advances in turbomachinery design and turbomachinery manufacturing technology in an...

Briefs
Mechanical & Fluid Systems

Rotating Detonation-Wave Engines

All Navy aircraft and missiles use gasturbine engines for propulsion. Many ships are also dependent on gasturbine engines to generate both propulsive power and electricity. These engines are fundamentally...