Reliably detecting irregularities in aircraft turbines

Even the slightest fault in aircraft engines could pose a safety risk. Until now, inspectors have relied solely on their well-trained eye to unmask defects on blade-integrated disks, known as blisks. In the future, they will ...

Calibrating an optical attenuator with few-photon pulses

Precise measurements of optical power enable activities from fiber-optic communications to laser manufacturing and biomedical imaging—anything requiring a reliable source of light. This situation calls for light-measuring ...

Microresonators could bring optical sensors, communications

Researchers have solved a key obstacle in creating the underlying technology for miniature optical sensors to detect chemicals and biological compounds, high-precision spectroscopy, ultra-stable microwave sources, and optical ...

New capability takes sensor fabrication to a new level

Operators must continually monitor conditions in power plants to assure they are operating safely and efficiently. Researchers on the Sensors and Controls Team at DOE's National Energy Technology Laboratory can now fabricate ...

A mouse that plays off gamers' super-quick motions

An EPFL post-doctoral student at Logitech has developed an algorithm that gives a mouse a nearly-unlimited reaction rate. It facilitates the combining of optical sensors with a system based on accelerometers and gyroscopes. ...

Applications of optical fibre for sensors

Mikel Bravo-Acha's PhD thesis has focused on the applications of optical fibre as a sensor. In the course of his research, conducted at the NUP/UPNA-Public University of Navarre, he monitored a sensor fitted to optical fibre ...

Bio-inspired eye stabilizes robot's flight

Biorobotics researchers at the Institut des Sciences du Mouvement - Etienne-Jules Marey (CNRS/Aix-Marseille Université) have developed the first aerial robot able to fly over uneven terrain that is stabilized visually without ...

Drones must learn to navigate populated areas

For drones to make it to the big time, they will need to learn to get around in towns and cities—without falling on car hoods or crashing into pedestrians.

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