Archive for the ‘electronics’ category: Page 6

Mar 20, 2022

The quantum squeeze

Posted by in categories: electronics, quantum physics

One important recent development in quantum sensing is known as quantum squeezing—a way to circumvent quantum limitations that even quantum sensors have faced in the past.

A technique from the newest generation of quantum sensors is helping scientists to use the limitations of the Heisenberg uncertainty principle to their advantage.

Mar 20, 2022

What are the Switchblade ‘kamikaze’ drones the US is sending to Ukraine?

Posted by in categories: drones, electronics

· They have on-board video cameras and colour sensors to aid with guidance.

· They are essentially camera-equipped, remote-controlled flying bombs that can be directed by an operator to find a target then, when ready, plunge on to it. They explode on contact, hence the “kamikaze” nickname.

Switchblades extend the range of attack on Russian vehicles and units to beyond the sight of the user. That gives them an advantage over the guided heat-seeking missiles the Ukrainians have used against Russian tanks.

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Mar 14, 2022

Researchers Use Flat Lenses for Realistic-Looking 3D Displays Without Glasses

Posted by in category: electronics

New approach lays groundwork for compact 3D displays that create more realistic virtual scenes.

Researchers have demonstrated a prototype glasses-free 3D light field display system with a significantly extended viewing distance thanks to a newly developed flat lens. The system is an important step toward compact, realistic-looking 3D displays that could be used for televisions, portable electronics, and table-top devices.

Light field displays use a dense field of light rays to produce full-color real-time 3D videos that can be viewed without glasses. This approach to creating a 3D display allows several people to view the virtual scene at once, much like a real 3D object.

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Mar 11, 2022

Harvesting Energy From the Air: Metasurface-Based Antenna Turns Ambient Radio Waves Into Electric Power

Posted by in categories: electronics, mobile phones

Technology could make it possible to use radio emissions from cell phone networks to wirelessly power sensors and LEDs.

Researchers have developed a new metasurface-based antenna that represents an important step toward making it practical to harvest energy from radio waves, such as the ones used in cell phone networks or Bluetooth connections. This technology could potentially provide wireless power to sensors, LEDs and other simple devices with low energy requirements.

“By eliminating wired connections and batteries, these antennas could help reduce costs, improve reliability and make some electrical systems more efficient,” said research team leader Jiangfeng Zhou from the University of South Florida. “This would be useful for powering smart home sensors such as those used for temperature, lighting and motion or sensors used to monitor the structure of buildings or bridges, where replacing a battery might be difficult or impossible.”

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Mar 9, 2022

Google Is Using Radar to Help Computers Read and React to Your Body Language

Posted by in categories: computing, electronics

The sensor sends out electromagnetic waves in a broad beam, which are intercepted and reflected back by objects (or people) in their path.

Mar 9, 2022

Google may be developing wearables that respond to skin gestures

Posted by in categories: electronics, wearables

Google has patented technology that will let users control its smartwatches and earbuds by simply touching their skin.

The patent titled “Skin interface for Wearables: Sensor fusion to improve signal quality” was spotted by folks over at LetsGoDigital. It details tech that users can use to operate wearable devices using skin gestures.

Patent documents show that users can swipe or tap the skin near the wearables in order to control them. The gesture creates a mechanical wave that is picked up by the sensors in the wearables. The “Sensor Fusion” tech then combines this movement data collected from various sensors into an input command for the wearable.

Mar 7, 2022

Magic Leap 2 Controller May Use On-board Inside-out Tracking, an Industry-first

Posted by in categories: electronics, Peter Diamandis

A new photo of Magic Leap 2 appears to show the device’s controller equipped with cameras for inside-out tracking which would be the first time we’ve seen the approach employed in a commercial XR headset.

Though we learned plenty of interesting details about the forthcoming Magic Leap 2 AR headset back in January, it looks like there’s still some secrets left to uncover.

A recent photo of Magic Leap 2 posted by Peter H. Diamandis is, as far as we know, the first time we’ve gotten a clear look at the front of the Magic Leap 2 controller. The photo clearly shows what appear to be two camera sensors on the controller, indicating a high likelihood it will have on-board inside-out tracking.

Feb 28, 2022

Salad-dressing inspired droplets could improve printed electronics

Posted by in categories: electronics, physics

Physics World.

Feb 24, 2022

Wearable Sensor Production Technique Replaces Photolithography

Posted by in categories: electronics, wearables

UC Berkeley engineers have come up a new technique for creating wearable sensor prototypes.

The geopolitical tension surrounding.

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Feb 23, 2022

Quantum gravity sensors could finally overcome a major issue raised by Einstein

Posted by in categories: electronics, quantum physics

Cartography could be changing forever as an advanced tool moves from the lab to the real world. A new quantum gravity sensor helps overcome an issue raised by Einstein.

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