Menu

Blog

Archive for the ‘electronics’ category

May 22, 2022

The Thin-Film Flexible 6502

Posted by in categories: computing, electronics

While our attention is mostly directed towards ever smaller-integrated silicon circuits providing faster and faster computing, there’s another area of integrated electronics that operates at a much lower speed which we should be following. Thin-film flexible circuitry will provide novel ways to place electronics where a bulky or expensive circuit board with traditional components might be too expensive or inappropriate, and Wikichip is here to remind us of a Leuven university team who’ve created what is claimed to be the fastest thin-film flexible microprocessor yet. Some of you might find it familiar, it’s our old friend the 6502.

The choice of an archaic 8-bit processor might seem a strange one, but we can see the publicity advantage — after all, you’re reading about it here because of it being a 6502. Plus there’s the advantage of it being a relatively simple and well-understood architecture. It’s no match for the MHz clock speeds of the original with an upper limit of 71.4 kHz, but performance is not the most significant feature of flexible electronics. The production technology isn’t quite ready for the mainstream so we’re unlikely to be featuring flexible Commodore 64s any time soon, but the achievement is the impressive feat of a working thin-film flexible microprocessor.

Meanwhile, if you’re curious about the 6,502, we took a look at the life of its designer, [Chuck Peddle].

May 19, 2022

Optical interferometry–based array of seafloor environmental sensors using a transoceanic submarine cable

Posted by in category: electronics

May 18, 2022

New powerful MRI scanners may help to treat Parkinson’s disease better

Posted by in categories: biotech/medical, electronics

New treatment options for neuronal diseases require better imaging techniques that will help find which patients will benefits from these treatments.

May 17, 2022

ETH Zürich’s ANYmal has made major strides since it first burst onto the scene

Posted by in category: electronics

Most recently, depth sensor “eyes” are upping its game.

May 17, 2022

Tiny drone based on maple seed pod doubles flight time

Posted by in categories: drones, electronics

Anyone else find it fascinating that we have all this tech and still can’t compete with nature?


A trio of researchers at City University of Hong Kong has developed a tiny drone based on the maple seed pod. In their paper published in the journal Science Robotics, Songnan Bai, Qingning He and Pakpong Chirarattananon, describe how they used the maple seed pod as an inspiration for increasing flight time in under 100-gram drones.

Maple seed pods are well known for their helicopter-type design. As they fall from the tree, they spin like a helicopter with no engine, increasing their distance from the tree as they are blown afar. In this new effort, the researchers sought to take advantage of the efficiency inherent in the structure of the maple seed pod to increase for tiny . To that end, they built a tiny drone that can spin like the maple seed pod to keep aloft. The resulting drone could fly for nearly twice as long as those with a traditional four-rotor design.

Continue reading “Tiny drone based on maple seed pod doubles flight time” »

May 11, 2022

Laser bursts drive fastest-ever logic gates

Posted by in category: electronics

A long-standing quest for science and technology has been to develop electronics and information processing that operate near the fastest timescales allowed by the laws of nature.

A promising way to achieve this goal involves using to guide the motion of electrons in matter, and then using this control to develop electronic circuit elements—a concept known as lightwave electronics.

Remarkably, lasers currently allow us to generate bursts of electricity on femtosecond timescales—that is, in a millionth of a billionth of a second. Yet our ability to process information in these ultrafast timescales has remained elusive.

Apr 21, 2022

Sapphire fiber could enable cleaner energy and air-travel

Posted by in categories: electronics, energy

Oxford University researchers have developed a sensor made of sapphire fiber that can tolerate extreme temperatures, with the potential to enable significant improvements in efficiency and emission reduction in aerospace and power generation.

The work, published in the journal Optics Express, uses a sapphire —a thread of industrially grown sapphire less than half a millimeter thick—which can withstand temperatures over 2000°C. When light is injected onto one end of the sapphire fiber, some is reflected back from a point along the fiber which has been modified to be sensitive to temperature (known as a Bragg grating). The wavelength (color) of this reflected light is a measure of the temperature at that point.

The research resolves a 20-year-old problem with existing sensors—while the sapphire fiber seems very thin, in comparison to the wavelength of light it is huge. This means that the light can take many different paths along the sapphire fiber, which results in many different wavelengths being reflected at once. The researchers overcame this problem by writing a channel along the length of the fiber, such that the light is contained within a tiny cross-section, one-hundredth of a millimeter in diameter. With this approach, they were able to make a sensor that predominantly reflects a single wavelength of light.

Apr 14, 2022

A New Resin 3D Printer Combines a CT Scanner and Light to Increase its Speed

Posted by in categories: biotech/medical, electronics

At the Technical University of Denmark (DTU), a team of researchers have developed a new kind of 3D printer whose technology combines a CT scanner and light. By reversing the principle of CT scanning, they could create all types of parts in record time from different polymer resins and play on their hardness. They would thus be able to reproduce the appearance of blood vessels or muscle tissue.

Today’s CT scans allow us to make slice images of our body parts and to visualize tissues of different densities. This X-ray machine is therefore used in the medical sector to establish a diagnosis. In this case, it was used to design a new, faster resin 3D printer.

Apr 13, 2022

These temporary tattoos measure glucose

Posted by in categories: chemistry, electronics

Circa 2015


Researchers have taken a regular gel pen and turned it into a DIY chemical sensor.

Apr 13, 2022

Colour-changing sensor raises a pink flag to hydrogen leaks

Posted by in categories: electronics, energy

A simple colour change could indicate the presence of potentially hazardous hydrogen gas thanks to a new sensor developed by researchers in Germany. The micron-scale device, which uses so-called “supraparticles” that turn from purple to pink in the presence of hydrogen, could help prevent explosions by making it easier to detect and localize leaks at fuel stations, generators and pipelines.

Page 1 of 7512345678Last