Menu HOME. Search Query Submit Search. By Loz Blain. Facebook Twitter Flipboard LinkedIn. Emrod's wireless power transmission devices can beam large amounts of electrical power between two points, with line of sight between relays the only limit on distance. View 3 Images. The Emrod team grabbing some wrist, with founder Greg Kushnir front and center.
Crude render of a temporary power transmission truck. Crude render of a temporary power transmission truck Emrod. Loz Blain. Loz has been one of our most versatile contributors since , and has since proven himself as a photographer, videographer, presenter, producer and podcast engineer, as well as a senior features writer.
Joining the team as a motorcycle specialist, he's covered just about everything for New Atlas, concentrating lately on eVTOLs, hydrogen, energy, aviation, audiovisual, weird stuff and things that go fast.
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Michael Jaeger August 3, AM. Over 5 years ago Viziv Technologies in Texas was wireless broadcasting power around the entire globe in small amounts, while they were testing. Today they have built the first surface wave transmitter in Milford, Texas. Microwave emitters and receivers are child's play. This sounds most useful for powering installations in hard-to-access areas where running wire or trucking in fuel for a generator is right out, and solar panels are too small or expensive.
Extra cell towers in mountainous areas? But it will still need a battery back for all the times when the anti-bird-frying circuitry cuts in. Electricity could move for hundreds of miles uninterrupted, and anyone with a receiver could access it, Tesla theorized.
I have discovered the essential principles, and it only remains to develop them commercially. When this is done, you will be able to go anywhere in the world — to the mountain top overlooking your farm, to the arctic, or to the desert — and set up a little equipment that will give you heat to cook with, and light to read by. This equipment will be carried in a satchel not as big as the ordinary suitcase.
In years to come wireless lights will be as common on the farms as ordinary electric lights are nowadays in our cities. Tesla moved his experiments to Colorado Springs, Colorado in But Tesla wanted to go bigger. He started building Wardenclyffe Tower in on Long Island. Brown in the s. He was able to demonstrate long-distance wireless power transmission using a rectenna that could efficiently convert microwaves into DC power.
In , he even managed to demonstrate the technique by powering a model "helicopter" using microwaves beamed from the ground! Brown would continue to refine the technique as the technical director of a JPL -Raytheon program until his retirement in the mids.
Part of his work here enabled his team to beam 30KW of power over a distance of 1 mile 1. One of the most important real-world applications of wireless power transmission was the use of inductive wireless energy transfer in implantable medical devices in the s. Early iterations of these devices used a resonant receiver coil only, while later ones also came with resonant transmitters coils as well.
Such devices were designed for high efficiency, using lower power electronics without the need for wires. Today, the use of resonant inductive energy transfer is increasingly more common, with many commercially available implantable medical devices, like cochlear implants. In the s, various attempts were made to provide wireless charging in vehicles.
Through his research, Professor Otto proposed that a vehicle could be charged inductively using transmitters embedded in a road's surface. Receivers on the vehicle, could conceivably then be used to power the vehicle as it traveled.
Later, in , the first application of inductive charging was demonstrated by J. Bolger and his colleagues. They managed to produce an electric vehicle powered inductively using a system running at Hz with 20kW.
At the end of the decade, in California, a wirelessly charged bus was also unveiled. Powered by inductive charging, similar ventures were also pioneered in France and Germany around the same time.
More recently, companies like Momentum Dynamics have been working in Norway on wireless charging systems for electric vehicles. Using a form of inductive charging technology, they hope to bring wireless charging to electrical vehicles, like buses or taxis, allowing them to charge without the need for charging stations.
This solution would see EVs topping up their batteries when idling, like waiting to pick up passengers, rather than needing to stop during their working day to recharge. The company is also working with others in China to develop a similar solution. This was achieved by using a highly resonant form of magnetic induction. In , in response to the widescale proliferation of mobile phones, tablets, and other devices, strides were made in the research of mid-range wireless power and charging technology in order to remove the need for tethering and the use of wall plugs for charging.
As part of this effort, the Wireless Power Consortium was born, to develop interoperable standards within the industry. This ultimately led to the Qi inductive power standard that was first published in , for high-energy charging and powering of portable devices up to 5 watts over distances of 1. One interesting avenue of research into wireless power transfer is the use of EM beams as the main vehicle of the transfer. Microwaves, for example, have been experimented with to provide point-to-point energy transfer without the need for wires.
NASA conducted research in the s to investigate the possibility of harvesting energy from space using solar-paneled satellites and "beam" the energy back to Earth. More recently, work in this area has focused on the long-distance powering of drones. This plane was powered using microwaves and a rectenna and was able to fly 13 miles 21 km in the air and remain airborne for months without the need to recharge. In the earlys, NASA managed to develop the world's first laser-powered aircraft too.
A small prototype was developed that was powered by electricity generated by photocells that generated power from a ground-based IR laser. In more recent years, the private sector has been increasingly getting in on the act to help bring wireless power transfer to the mainstream. Various companies, like Wi-Charge, Energous, and Ossia, are currently developing methods to powering devices wirelessly using infrared and RF technology in a safe and reliable fashion.
Wi-Charge's solution uses focused beams of IR light directed at a receiver on an enabled device which converts the beam into useful electricity.
Energous , on the other hand, is developing radiowaves to enable the charging of many enabled devices within a foot meter radius. Ossia is developing a means of wireless power transfer aimed specifically at the automotive market.
They hope to provide a means of in-car wireless charging of compatible devices in the future. These solutions could conceivably render charging cables a thing of the past — something that would very handy in places where electrical cables are potentially hazardous or inconvenient, like bathrooms.
For wireless power transfer to rival conventional wired power, a means to transfer it over long-distances is needed. This is where companies like the NZ-based Emrod, could soon revolutionize the way power is transmitted around the world. They are developing a means of safely, and wirelessly, distributing power in collaboration with Powerco New Zealand's second-largest power distributor. Emrod has recently reported promising results with their current prototypes, with large amounts of power being transmitted between two points efficiently.
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