Briefs: Manufacturing & Prototyping
Briefs: Photonics/Optics
A new research focusing on topological control capabilities in an integrated acoustic-electronic system at technologically relevant frequencies could pave the way for additional research...
Briefs: RF & Microwave Electronics
Inside every cellphone lies a tiny mechanical heart, beating several billion times a second. These micromechanical resonators play an...
Application Briefs: Photonics/Optics
Briefs: Electronics & Computers
Briefs: Sensors/Data Acquisition
Briefs: Unmanned Systems
Briefs: Test & Measurement
Briefs: Materials
Briefs: Test & Measurement
5 Ws: Data Acquisition
Briefs: Automotive
Briefs: Materials
In the wake of recent developments that have reduced fan and jet noise contributions to overall jet-engine noise, aircraft designers are turning their attention toward reducing engine core...
Briefs: Photonics/Optics
Researchers have constructed a “metamirror” device capable of perfectly reflecting sound waves in any direction. The proof-of-principle demonstration is analogous to looking...
Briefs: Communications
The traditional approach for wireless sensors involves interrogators that communicate with each other (i.e., the two boxes “talk” to each other). In contrast, surface acoustic wave...
Briefs: Sensors/Data Acquisition
NASA Langley Research Center scientists have developed a microphone that detects infrasound, i.e., acoustic waves ranging from 20-Hz frequencies down to DC. Infrasound is emitted in a number of...
Briefs: Aerospace
NASA Langley Research Center has developed a new approach for designing aircraft liner cores for noise reduction. The cores are comprised of multiple honeycomb-shaped chambers,...
Articles: Manufacturing & Prototyping
This column presents technologies that have applications in commercial areas, possibly creating the products of tomorrow. To learn more about each technology, see the contact information provided for that innovation.
Briefs: Data Acquisition
Device for Providing Real-Time Rotorcraft Noise Abatement Information
Rotorcraft typically operate near the ground throughout the duration of the operation. For this reason, military rotorcraft are vulnerable to acoustic detection, and public acceptance of civil rotorcraft is limited by annoyance caused by rotor noise radiation. The purpose of...
Briefs: Materials
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: Defense
NASA's Langley Research Center, in collaboration with Michigan State University (MSU), has developed a microphone array that...
Briefs: Software
A thin material was developed that can control the redirection and reflection of sound waves with almost perfect efficiency. While many theoretical approaches to...
Briefs: Materials
Researchers have observed waves of atomic rearrangements, known as phasons, propagating supersonically through a vibrating crystal lattice — a discovery that may dramatically...
Briefs: Propulsion
NASA's Glenn Research Center has developed a novel Double-acting Extremely Light Thermo-Acoustic (DELTA) converter that operates at high frequencies (>400 Hz) with greatly...
Briefs: Test & Measurement
When testing composite structures, it is important to understand the response of the structure to the load. Of significance is the formation of damage and growth of that damage leading...
Briefs: Materials
Researchers at NASA’s Glenn and Langley Research Centers have developed a groundbreaking bio-mimicking acoustic liner for quieting noisy environments. Conventional approaches have not been able to absorb...
Briefs: Test & Measurement
Noncontact Sensor Measures Density and Speed of Sound of a Liquid in a Pipeline or Vessel
The need for non-invasive, real-time measurement of the density and speed of sound of a liquid led to the development of an ultrasonic sensing technique based upon the reflection of ultrasound at the solid-fluid interface.
Briefs: Medical
Metamaterials with zero, or even negative refractive index for sound offer new possibilities for acoustic imaging and for the control of sound at sub-wavelength scales. The...
Briefs: Test & Measurement
Time of flight is an approach that gauges distance by measuring the time it takes light projected into a scene to bounce back to a sensor. In time-of-flight imaging, a short burst of light is fired...
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Webcasts
Upcoming Webinars: Research Lab

What Really Changed: A Look at the Updated FDA Guidance Document...
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Electrifying Off-Highway Drivetrains
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NVH Prediction in Electric Powertrains: Considering Inverter and...
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Here's an Idea: Powerful Sensors for the Eye
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The Smaller the Part, the Bigger the Advantages of Miniature Aluminum Extrusions
Podcasts: Data Acquisition

Here's an Idea: How AI is Changing Military Aircraft Maintenance and More