#Atomic force microscope systems take a tip from nanowires (Phys. org) In response to requests from the semiconductor industry a team of PML researchers has demonstrated that atomic force microscope (AFM) probe
tips made from its near-perfect gallium nitride nanowires are superior in many respects to standard silicon
or platinum tips in measurements of critical importance to microchip fabrication nanobiotechnology and other endeavors.
In addition the scientists have invented a means of simultaneously using the nanowire tips as LEDS to illuminate a tiny sample region with optical radiation
and Synthesis of 3d Nanostructures in the Quantum Electronics and Photonics Division is that if you deform them even a little bit
and optoelectronic devices Bertness says. At present only a few Gan probes can be made at once but the team is at work on developing ideas for producing them in wafer-scale quantities.
so that it functions as an LED. Optical radiation can serve to excite the sample in a different way from the microwave signal
and nanometer scale is crucial from semiconductor electronics to biochemistry and medicine. Explore further: High-resolution microscopy technique resolves individual carbon nanotubes under ambient condition c
According to Koskinen the observation advances research in nanoelectronics and optoelectronics because it markedly simplifies the interpretation and understanding of the electronic and optical properties of layered materials.
New structural'supercaps'take a lickin'keep on workin'Imagine a future in which our electrical gadgets are limited no longer by plugs and external power sources.
The new device that Pint and Westover has developed is a supercapacitor that stores electricity by assembling electrically charged ions on the surface of a porous material,
supercaps can charge and discharge in minutes, instead of hours, and operate for millions of cycles, instead of thousands of cycles like batteries.
In a paper appearing online May 19 in the journal Nano Letters, Pint and Westover report that their new structural supercapacitor operates flawlessly in storing
"In an unpackaged, structurally integrated state our supercapacitor can store more energy and operate at higher voltages than a packaged, off-the-shelf commercial supercapacitor, even under intense dynamic and static forces,
"Pint said. One area where supercapacitors lag behind batteries is in electrical energy storage capability: Supercaps must be larger and heavier to store the same amount of energy as lithium-ion batteries.
However, the difference is not as important when considering multifunctional energy storage systems.""Battery performance metrics change when you're putting energy storage into heavy materials that are needed already for structural integrity,
"said Pint.""Supercapacitors store ten times less energy than current lithium-ion batteries, but they can last a thousand times longer.
That means they are suited better for structural applications. It doesn't make sense to develop materials to build a home, car chassis,
"Westover's wafers consist of electrodes made from silicon that have been treated chemically so they have nanoscale pores on their inner surfaces
Sandwiched between the two electrodes is a polymer film that acts as a reservoir of charged ions, similar to the role of electrolyte paste in a battery.
When the electrodes are pressed together, the polymer oozes into the tiny pores in much the same way that melted cheese soaks into the nooks and crannies of artisan bread in a Panini.
"The biggest problem with designing load-bearing supercaps is preventing them from delaminating, "said Westover.""Combining nanoporous material with the polymer electrolyte bonds the layers together tighter than superglue."
"The use of silicon in structural supercapacitors is suited best for consumer electronics and solar cells, but Pint and Westover are confident that the rules that govern the load-bearing character of their design will carry over to other materials, such as carbon nanotubes and lightweight porous metals like aluminum.
Gold nanoparticles lie on the surface of the chip and are programed chemically with an antibody receptor in such a way that they are capable of specifically attracting the protein markers circulating in blood.
When a drop of blood is injected into the chip it circulates through the micro-channels
in rapid succession, improved the black coating used for thermal sensors and developed an original and patented method for depositing the coating.
For a flat sensor, the actual average temperature is about 80°C, and in summer the temperature can reach 200°C. Regularly exposed to air and moisture,
the sensor must last for 25 years on a building, which is not so easy.""The durability of our materials at temperatures exceeding 360°C could also be of interest to thermal power plants,
This has significant implications for industries including electronics and electric vehicles which are always trying to squeeze longer discharges out of batteries."
#Flexible supercapacitor raises bar for volumetric energy density Scientists have taken a large step toward making a fiber-like energy storage device that can be woven into clothing
and power wearable medical monitors communications equipment or other small electronics. The device is a supercapacitor cousin to the battery.
This one packs an interconnected network of graphene and carbon nanotubes so tightly that it stores energy comparable to some thin-film lithium batteriesn area where batteries have held traditionally a large advantage.
(called volumetric energy density) is reported the highest for carbon-based microscale supercapacitors to date: 6. 3 microwatt hours per cubic millimeter.
They envision the fiber supercapacitor could be woven into clothing to power medical devices for people at home or communications devices for soldiers in the field.
Dai a professor of macromolecular science and engineering at Case Western Reserve and a co-author of the paper explained that most supercapacitors have high power density but low energy density
Microelectronics to electric vehicles can benefit from energy storage devices that offer high power and high energy density. That's why researchers are working to develop a device that offers both.
To continue to miniaturize electronics industry needs tiny energy storage devices with large volumetric energy densities. By mass supercapacitors might have comparable energy storage or energy density to batteries.
But because they require large amounts of accessible surface area to store energy they have lagged always badly in energy density by volume.
When they integrate multiple pairs of fibers between two electrodes the ability to store electricity called capacitance increased linearly according to the number of fibers used.
Using a polyvinyl alcohol/phosphoric acid gel as an electrolyte a solid-state micro-supercapacitor made from a pair of fibers offered a volumetric density of 6. 3 microwatt hours per cubic millimeter
The fiber supercapacitor demonstrated ultrahigh energy density value while maintaining the high power density and cycle stability.
The fiber supercapacitor continues to work without performance loss even after bending hundreds of times Yu said.
Woven into uniforms the battery-like supercapacitors could power displays or transistors used for communication.
The researchers are now expanding their efforts. They plan to scale up the technology for low-cost mass production of the fibers aimed at commercializing high-performance micro-supercapacitors.
In addition The team is interested also in testing these fibers for multifunctional applications including batteries solar cells biofuel cells
and sensors for flexible and wearable optoelectronic systems Dai said. Thus we have opened up many possibilities
High-performance low-cost ultracapacitors built with graphene and carbon nanotubes More information: Paper: Scalable synthesis of hierarchically structured carbon nanotuberaphene fibres for capacitive energy storage dx. doi. org/10.1038/nnano. 2014.9 n
"Current manufacturing methods in semiconductor labs require expensive cleanrooms to fabricate photonic chips. The fabrication and laser writing of this photonic material is simple and low cost."
#Remote Bomb Detector Uses Sound waves To Distinguish Between Types Of Explosives#A new type of bomb detection can sniff out how powerful an explosive#is from afar.
Smartcitizen. methese sensor enhanced hive designs are open and freely available online the data collected from each hive is published together with geolocations allowing for a further comparison and analysis of the hives.
or hobbyist and handy with electronics you get a double-whammy: a free design for a high-tech beehive that can monitor your bees'environment
But if that's somehow not enough you can help fund Priovr a set of sensors that monitor your movements
The developers of the sensors YEI Technology think people are willing to drop $225000 on Kickstarter
Still the sensors look crazy-accurate at least if the videos from YEI are any indication.
It's the equivalent of finding out a bunch of wiring was really a set of transistors according to Smith.
#To make it happen the team removed parts of skull from three patients experiencing frequent drug-resistant epileptic seizures then attached a packet of electrodes to their exposed brains.
After that the researchers#let the patients experience their stay in the hosptial as they normally would using the electrodes to record data on the seizures as well as everything else they did during the hospital stay like eating or speaking.
Cameras monitored the patients from their rooms allowing the researchers to determine how the data they got from the electrodes matched up with
In this case the microwave-harvesting metamaterial that acts kind of like a solar panel converting microwaves into up to 7. 3 volts of electricity enough to charge small electronics.
however cameraphone technology needs to support it in ways it currently doesn t. Cameraphones have improved dramatically in the last few years the Nokia Pureview sensor has 41 megapixels
and HTC s newest sensor has larger pixels that grab more light but they still suffer from one great shortfall:
The Sony QX100 the newest offering in the lot is the most extreme example. The device is just a lens sensor
and image processor and users attach their smartphone as a viewfinder.##Editors will need software that selects the best images not just the ones from the right place at the right time.
As it turns two X-ray detectors on either side scan it and a computer merges the multiple images generated into a whole three-dimensional CT SCAN.
#Sewer Sensors Detect Homemade Bombs As They're Being made Could the secret to finding illicit explosives labs before they harm anyone be hiding in a city's poop?
It would position sensors throughout sewers to alert authorities when traces of chemicals used to make explosives get flushed down the drain
while different sensors above the ground monitor for elevated amounts of gas byproducts of the bomb-making process in the area.
The team behind EMPHASIS announced earlier this month that the sensors had proved#successful#in#lab tests
Scientists have looked previously into sewer sensors as a way to examine drug usage on a citywide level.
Chips inside of a smartphone's built-in camera are sensitive to gamma rays; Gammapix uses its software to measure the impact of those rays
Cappos and colleagues are now working on software that could access the sensors in smartphones as well.
Fontaine and his colleagues invented a new kind of multiplexer a device that bundles multiple inputs into one stream
Fontaine's multiplexer avoids the signal loss that crippled earlier devices; he has shown already that his multiplexer can send six light streams down 497 miles of fiber without losing data along the way.
While previous multiplexers are a cubic foot or more; Fontaine's is 50 cubic millimeters. Since it's made of glass
and etched by laser it would be cheap to produce. The device is also scalable:
Instead they have sensors that can pick up electric signals which are created by every living animal in the water.
State-run news agency Ria Novosti has said that it will carry dust monitors and plasma sensors to sense high-energy cosmic rays as well.
Jonathan Viventi Builds Devices That Decode Thoughts Existing brain implants require individual electrodes to be wired to an external device for data processing.
Viventi s arrays contain transistors that enable the signals to be processed locally yet they're as thin and flexible as a sheet of cellophane conforming to the contours of the brain.
As a result the number of electrodes can be increased by an order of magnitude. We can actually sample with extremely high resolution across a virtually unlimited area of the brain Viventi says.
and together they share information from their sensors. Each boat knows its own surrounding environment
D The ground station responding to sensor data from the BAT helps the craft hunt for optimal wind conditions around 30 mph.
The military and even some civilian people need this gravity model to do corrections to their underwater sensors.#
Internet. org a collaboration between social media giant Facebook#and telecom behemoths Nokia and Qualcomm created a short#optimistic video about these sky Internet#robots.
With this technique researchers implant two electrode arrays onto the spine: one above the injury and one below.
If/when the system becomes adapted for humans the researchers think wearable sensors may be able to take the place of the camera setup.
Stella s sensors picked up on the signal being transmitted by a nearby speed sign and alerted the driver on a screen fixed to the clean knob-less dashboard that the limit was 25 mph.
and laser motion sensors could be sold alongside build-it-yourself weather monitoring kits and robot birds.
But as Arduino#a microcontroller for DIYERS and the most successful open source hardware project to date#shows people tend to buy the $30 original version rather than the $10 copycats.
There's a semiconductor chip that has an array of a million tiny mirrors on it. The mirrors flip to modulate each pixel's brightness.
Sensors in the helmet collect data on impact force linear or rotational acceleration and location.
The receivers sit inside a transcranial magnetic stimulation machine that's able to send electromagnetic pulses through people's skulls.
The pulses make the receivers see flashes of light in their peripheral vision that aren't actually there.
In addition the machine has a robotic arm that's able to aim at different places on the receivers'skulls.
As soon as the receivers'machine gets the emitter's binary message over the Internet the machine gets to work.
It moves its robotic arm around sending phosphenes to the receivers at different positions on their skulls.
We don't know how the receivers keep#track of all that flashing. Perhaps they take notes using a pen and paper.
Motors batteries sensors and electronic control systems located at the ends of the rods can loosen or tighten the tension of the cables.
Unlike most drones which have a pilot dictating their every move#by remote control the X-47b is largely autonomous calculating its flight paths.
and onsite micro hydro turbine systems will power a cluster of five remote outbuildings. 3) San francisco startup Cruise Automation is making a $10, 000 sensor system (due out next
That's the notion around a sensor device being developed by Harken, a public-private European consortium.
the system's sensors are smart textiles: combination of fibers and yarns with electrical propertiesworked into the fabrics of the seat cover
other information the project has put online suggests that it has succeeded at consistently filtering out oiselike car vibrations from the sensor data,
it's a notable accomplishment for a system that does not involve putting any sensors in direct contact with the user's skin.
IEEE Spectrum notes that some luxury carmakers are already using sensors such as cameras to catch driver fatigue in time to stop accidents,
But getting living tissue to play nice with a circuit board is anything but easy, for a number of reasons.
electronics send signals via negatively charged electrons, whereas many of the communications carried out in living tissues take place through the movement of positively charged particles, such as calcium and potassium ions.
Via metal electrodes that contacted the film, the researchers observed the relationship between current and voltage under various conditions.
Scientists have been conducting research on micrometre-sized actuators that one day may make it possible to transport drugs or chemical sensor molecules to specific locations throughout the human body.
or chemical sensor molecules to specific locations in the body the actuators must be coated with the corresponding molecules.
The three-section waterproofed boxes are empty providing 450+sq. inches of free space for electronics along with open deck space for mounting payloads.
Frederic Bazille#Studio 9 Rue de la Condamine#(1870) and Norman Rockwell#Shuffleton Barber Shop#(1950.
Wigl uses a microphone microcontroller and two motors to hear understand and move to the music.
Original versions of Wigl used DTMF (Dual Tone Multi Frequency) chips which are used commonly in touch-tone phone systems.
After realizing that using DTMF chips would be too expensive to cover a full scale a redesign was necessary.
or a computer for remote control Wigl interacts directly with the child and their instruments. Most children s entertainment is moving towards software mainly on tablets and
#New soft ntagonisticactuator enables robots to fold Traditionally many key robot components (including sensors and actuators) are rigid
Each DEA consists of a thin elastomer membrane between two compliant electrodes the opposing charges on each electrode generate an electrostatic force (Maxwell stress) which squeezes the membrane causing thinning and expansion
Magic Leapas artificial intelligence software and emerging learning chips fuse into more speedy and capable pursuits the line between things robotic (which has a specific definition)
and can interface with other electronic devices including smart clothing lights sensors and musical instruments making it an affordable humanoid platform for research experimentation and education.
and teachers an adequate tool to cultivate the creativity of students studying in fields such as mechanics computer sciences electronics and 3d printing.
The panel chaired by Mitsubishi electric Corp. consultant Tamotsu Nomakuchi will work out a five-year plan to be presented by the end of 2014 with details on how they willâ achieve the numerical targets.
This means that vision can control actuators just like other sensors e g. an encoder. Although at present the camera is located off board the robot it will be attached to the body in future iterations.
It is fitted with surface and subsurface sensors to gather information such as water temperature and the atmospheric conditions above.
Slocum Gliderthe Slocum Glider built by Teledyne Webb Research is a high-endurance vehicle equipped with a variety of sensors.
which will be tracked using a new seabed and USV receiver. Further information about the project available at the project#s official page.
#Stepping motor with battery-free absolute sensor enables accurate positioning Oriental Motor has developed the Î STEP AZ Series of closed-loop stepping motor & Driver packages
which contain its patented mechanical absolute sensor the ABZO Sensor. he ABZO Sensor in the motor is able to record the current position of the motor in the sensor itself.
and homing without a home sensor or a limit sensor. ith the majority of stepping motors a backup battery is needed to store position data
and because batteries have limited a life data can't be stored for a long time. But the AZ Series doesn't need a battery
and external sensors in this way the AZ Series can reduce setup costs electrical connections and footprint. n addition to the current lineup Oriental Motor is planning to release a model with a gearhead.
and microphone to the user smartphone drastically cutting the cost of production. If a robot is intended to improve people lives it shouldn be expensive right?
When you see the catchphrase#mind controlled robot#you think of someone sitting in a chair with electrodes plugged into their head having ultimate control over many many dimensions of a robot#s functionality.#
and has sewn 19 sensors throughout his fur. These sensors let children check Jerry glucose levels feed him foods give him insulin
and even tickle him. This level of interaction creates a hands on learning environment that enables kids to gain experience responding to real world scenarios.
Using these sensors and outputs he can be programmed to: Programming Edison involves dragging and dropping icons to form a program.
Programs download into the robot via the supplied Edcomm cable that plugs into the headphone jack of your computer.
and DVD remote control which can be used to drive the robot by remote control. Two or more Edisons can communicate via infrared light
which has an impressive array of sensors and motors and the Thymio which is priced slightly lower at around $200.
#Exoskeleton with haptic sensors helps paralysed man to kick off World cup VIDEO UPDATE 06/13 It#s June 2014 and all eyes are on Brazil.
The exoskeleton is controlled through an EEG (Electroencephalography) cap placed over the head#the sensors on the cap read brain activity from the scalp.
While EEG is less sensitive than implanting sensors on the brain it has the advantage of being noninvasive meaning that the teenager was required not to undergo surgery for this one-off event.
if the foot is on the floor (from sensors on the foot) but which part of the foot is on the floor giving a proprioceptive effect
what feels like an artificial footprint on their arm as the sensors roll from heel to toe.
This requires dedicated electronics that give access to the raw signal and demodulation. We solve this problem on the Droplets by using two receivers:
one that has a built-in 38khz demodulation circuit (as used in TV remote controls) and another that provides us with the raw amplitude.
In order to overcome the limitations of a point source approximation we measure the incoming infrared from another robot#s emitter using all six receivers (as opposed to just one;
we do this for all six emitters leading to a 6×6 matrix of measurements. Using a two-step approximation1â we showâ how this data can be combined with accurate sensor
and receiver characteristics to calculate not only the bearing to the other robots but also its heading and eventually the range.
The advantage of this method is that an emitting robot can provide range bearing and heading information to as many robots as can simultaneously hear it making this approach much more scalable than other techniques that must exchange mutual bearings to calculate heading.
Supercaps allow the Droplets to remain powered also during#airtime #or when navigating the small gaps between each stripe.
and low cost (the powered floor is a simple 2-layer printed circuit board) could make the Droplets an ideal educational platform enabling instructors to tangibly teach subjects such as organic chemistry (with each Droplet being a wiggling atom
It is equipped with multiple sensors (a big LIDAR on its roof is probably doing most of the work)
but there are also sensors in the front in the back and where the side view mirrors would have been in a regular car.
which uses a combination of wearable devices sensors throughout the home and a mobile robot to assist older people in their homes
The sensors are designed to detect activities like cooking sleeping or watching television and monitor health blood pressure or sugar levels for example.
While these interests may seem divergent the synthesis of them led him to Brown University#s Braingate Group where he is the Senior Research and development Engineer.
Using a combination of surgically implanted electrodes (connected at one end to the nervous system and at the other end to sensors) and an algorithm to convert signals the team has produced a hand that sends information back to the brain that is so detailed that the wearer could even tell the hardness of objects he was given to Hold in a paper published in Science Translational Medicine in Feb. 2014
the team from EPFL (Switzerland) and SSSA (Italy) headed by Prof. Micera of EPFL and NCCR-Robotics presented an entirely new type of prosthetic hand Lifehand 2 that is capable of interfacing with the nervous system of the wearer
The first step of this mechanism involves transverse intrafascicular multichannel electrodes (TIMES) being implanted surgically in the median and ulna nerves in the arm#those that control the sensory fields of the palm and fingers.
The electrodes are connected then to a number of sensors distributed across the prosthetic hand in locations that mimic the locations of tendons on a real hand.
The signals from the sensors are relayed then to an external unit where they are processed before being passed back to the nerves in a format that allows the brain to understand how much pressure is being exerted on the sensors much like how information is passed from a real hand to the brain.
and it was found that the brain automatically assimilated data from multiple sensors in the palm of the hand.
While prosthetics is not new just the idea of a technique that allows sensors motors
In a parallel line of work in order for the hand to be made portable the electronics required for the sensory feedback system must be miniaturized
Electrical signals sent by the brain are picked then up by a series of electrodes placed at specific locations on the userâ#scalp.
Packbotâ#other attributes include a state-of-the-art GPS video image display system monitoring electronic compass temperature sensors.
Nest launched in 2011 with a smart thermostat and has launched recently a smoke alarm Both products are doing very well in sales.
Theyâ##re already delivering amazing products you can buy right nowâ##thermostats that save energy
and walk across our desk using off-the-shelf motors batteries and electronic components? There are multiple ways to keep a cube in its balance
and electronics of the jump up and balancing strategy and prove feasibility of the overall concept a one-dimensional version was built:
and industry including Siemens Fraunhofer Universal Robots Philips and the Technische Universitã¤t Mà nchen (TUM).
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