magnetic field
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Bengaluru's Vimag Labs Secures Fifth Patent for Rare-Earth-Free EV Motor Vimag Labs, a Bengaluru-based deep-tech startup, secured its fifth Indian patent on July 8 for an electric motor that operates without rare-earth permanent magnets, according to multiple industry reports. The patent, titled "A Robust Rotating Transformer Excited Synchronous Motor and Its Control," covers the core architecture of the company's Virtual Magnet Synchronous Motor (VMSM) platform,… |
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This Bug-Sized Wireless Flying Robot can Hover, Survive Collisions, and Adjust Its Route Engineers at the University of California, Berkeley, have developed a tiny flying robot inspired by flying insects. It is less than 1 centimeter in size with only two tiny magnets and weighs only 21 milligrams, making it the smallest flying robot that can be controlled without wires. Unlike normal drones that need batteries and sensors, this robot moves using an external magnetic field. Though… |
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DIY High-Voltage Plasma Portal using ZVS Circuit A YouTuber has shared his Plasma Portal project, a high-voltage electrical engineering demonstration that combines a Zero Voltage Switching (ZVS) driver circuit, a custom flyback transformer, and a 3D-printed frame to generate plasma arcs. The ZVS circuit, built using IRFP260 MOSFETs, resistors, diodes, and capacitors, efficiently oscillates current through the… |
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Innovative Flexure-Based Actuator Project Showcases Potential for Miniaturized Applications In a groundbreaking project, a creator named Carl bugeja has ingeniously combined flexure bearing mechanisms with magnetic PCB (Printed Circuit board) actuators, pushing the boundaries of miniaturization and exploring novel applications. The project was sparked by the development of a magnet-based actuator enclosed within a 3D printed… |
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Simple Ultrasonic Acoustic Levitation using Arduino and HCSR04 Ultrasonic Sensor It is very exciting to see something floating in the air or free space that is exactly what an anti-gravity project is about. The object (basically a small piece of paper or thermocol) is placed between two ultrasonic transducers which generate acoustic sound waves. The object floats in the air because of these waves which seem to be of anti-gravity. This is not only a cool… |
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Magnetic Polarity Detector Circuit using Hall Effect Sensor We all know that every magnet has two polarities, i.e. North Pole and South Pole, whether it is neodymium magnet, ring magnet or disc magnet. We also know that opposite poles of a magnet attract and same poles repel. But it is hard to say that which one is south pole and which one is a north pole, so to detect the poles of the magnet, here we will build a simple circuit.… |
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An Introduction to Solenoids Solenoids are simple components that can be used for various applications. The name solenoid is derived from the Greek word “Solen” which means a channel or a pipe. Solenoids are used in both domestic and industrial equipments, they are available in various designs, each of them has their own specific applications. Although the application changes, their working principle… |
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Understanding Maxwell Equations Maxwell equations are the fundamentals of Electromagnetic theory, which constitutes a set of four equations relating the electric and magnetic fields. Instead of listing out the mathematical representation of Maxwell equations, we will focus on what is the actual significance of those equations in this article. The Maxwell’s First and Second equation deals with static… |
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Reed Switch Interfacing with Arduino Reed switch is used in many of the real-life applications such as magnetic door switch, laptops, smartphones etc. In this article, we learn about Reed Switch and guide you to Interface a Reed Switch with Arduino. Reed Switch Reed switch is basically an electrical switch which is operated when a magnetic field is brought near to it. It was invented by W. B.… |
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Interfacing Hall Sensor with Raspberry Pi Hall sensors are sensors which produces an electrical signal at its output when it comes in contact with a magnetic field. The analog value of the electric signal at the output of the sensor is a function of the strength of the magnetic field. Hall sensors are everywhere these days, they are being used for different reasons and in all kind of devices from mobile phones… |
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Magnetic Field Strength Measurement using Arduino In this project we are using the concept of ADC (Analog to Digital Conversion) in ARDUINO UNO. We are going to use a Hall Effect sensor and Arduino uno to measure the field strength of a magnet. The sensor which we have used here is UGN3503U. This is a hall sensor which senses the magnetic field strength and provides a varying voltage at output proportional to the… |
