Scientists at Imperial College London have recently found ways to recharge airborne drones. This technology concept has actually existed for more than 100 years. In theory, only need to be equipped with a car on the ground, you can charge the drone in the air, so that the aircraft can continue to fly in the air. In the future, the technology may have great industrial application prospects. How to achieve? Scientists used the “inductive coupling†technique, which the concept inventor Nikola Tesla had proven more than 100 years ago. With electronic equipment, two copper coils can be adjusted to each other and wirelessly exchange power at a specific frequency. For decades, scientists have been experimenting and verifying technology, but they have not developed aerial wireless power transmission technology. Now, scientists at Imperial College have made breakthroughs by tearing down the mini drone's battery and wirelessly powering it through inductive coupling. Scientists believe that it is the first time to wirelessly charge flying objects (such as drones). To prove that the method is feasible, the researchers purchased an off-the-shelf four-axis drone with a diameter of about 12 cm, replaced the electronic components, and removed the battery. Scientists made copper coils, which correspond to receiving antennas and surround the surface of drones. On the ground, launch devices made of circuit boards are connected to electronic devices and power supplies to create a magnetic field. The researchers then adjusted and calibrated the drone electronics so that it had the same frequency as the magnetic field. When the drone flies into the magnetic field, the receiving antenna will sense the AC voltage, and the drone's electronic components will convert the AC power to DC power for the drone to use. The technology is still in the experimental stage. The flying height of the drone is limited, and the flying height cannot exceed 10 cm above the magnetic field emission source. The research team estimates that commercial products can be launched in another year. In the areas of commerce, surveillance, reconnaissance, search and rescue, drones are increasingly used. The problem is that the drone's flight range and battery life are limited because of limited power and need to be recharged. If you can use wireless transmission technology to charge, these problems can be solved. Samer Aldhaher, a researcher at the Department of Electrical and Electronic Engineering at Imperial College, believes: “In many cases wireless charging can improve drone technology. For example, we can configure the vehicle on the ground and use it as a mobile charging station. The drone can be There is no need to land at the top of the car. Ammonium Formate can be used in food additive as a preservative, it is an inhibitor of bacteria. Ammonium Formate Ammonium Formate, Formic Acid Ammonium Salt, Feed Preservative Jiangsu Kolod Food Ingredients Co., Ltd. , https://www.kolodchem.com