Magnetic ring - A convertible and discreet ring Author: Norbert Horváth, Zalaegerszeg, Hungary I work at a small goldsmith studio and I have recently discovered your products. They are very inspiring and I'd like to show you what innovative jewellery I developed with...
We offer an extensive range of Pot Magnets, from small Pot Magnets lifting 400g up to large Pot Magnets lifting up to 130kg. They exist in a wide range of diameters and heights. We actually offer far more sizes and pull forces across the range than shown on this site - if you cannot see a Pot...
Separating flat magnets Tin cans as leverage Author: R. C., Cointrin, Switzerland
Two inseparable magnetsI have 2 strong disc magnets, that like to hook up. Getting them apart is rather difficult. I use two tin cans as leverage.
Two tin cansFirst, I place the magnets between the tin...
pot magnets application - How to reliably keep doors closed
On the basis of application Closing the cupboard door we realized an even prettier closet-closing solution in our main office in Uster:
We screwed a potmagnet on a piece of wood, but not all the way, so it remains slightly movable....
Magnetic materials refer primarily to the materials with direct or indirect magnetism composed of transition elements like ferrum, cobalt, nickel and their alloys. Magnetic materials find application in wind power, electronics, computer, communication, medical treatment, household appliances and...
In-depth Analysis and Forecast of China Rare Earth Permanent Magnet Industry, 2013-2017
The reserves of China’s rare earth account for about 23% of the total world reserves. In 2012, the annual production volume of China’s rare earth accounted for over 85% of the total world...
A magnetic motor (or magnet motor) is a device which converts power of or relating to or caused by magnetism (e.g., "magnetic forces") into mechanical force and motion, with no other input. It usually provides rotary mechanical motion. The machines that utilizes the properties of a magnet for...
The Magnet motor (or magnet engine) free energy generator is a decent, powerfull and well-looking topology of a free energy generator. It works on a principle of the powerfull neodymium permanent magnets. When the magnetic force reachs the necessary level to overcome the friction, the motor RPM...
Many over-unity researchers are attempting to harness the unique properties of pulsed motors. The Orion Project has started to conduct research on devices that will ultimately be able to self-power and provide enough additional electrical energy to cover all the requirements for an average home. A...
A brushed DC motor is an internally commutated electric motor designed to be run from a direct current power source. Brushed motors were the first commercially important application of electric power to driving mechanical loads, and DC distribution systems were used for more than 100 years to...
AC motors are also fairly simple to understand. They are a little trickier to make but will need single-phase or three-phase AC power to make them work. In the little diagrams above, we have a squirrel cage ac induction motor, a permanent magnet synchronous machine, and a...
In any electric motor, rotation is caused by two magnetic fields that oppose each other. In some motors, both fields are created by coils of wire - electromagnets. In other motors, one field is electromagnetic and the other comes from one or more permanent magnets.In the permanent magnet (PM)...
It’s obvious that the motor you use is the most important part of your wind power generator. If you’re new to building a small wind turbines, then you’ll find that this can be one of the most confusing (and controversial) aspects to the process. Motors, generators, alternators,...
Many over-unity researchers are attempting to harness the unique properties of pulsed motors. The Orion Project has started to conduct research on devices that will ultimately be able to self-power and provide enough additional electrical energy to cover all the requirements for an average home. A...
Identical hand-cranked generators can be used to show that a generator can function as a motor and vice versa. If mechanical energy is put into the one of the devices by turning the crank, electrical energy can be produced. If that electrical energy in the form of voltage is applied to the other,...
The Brushed DC Motor gets its name from the "brushes" used for commutation. Here are some key points about the brushed DC motor:
Typically the rotor, also known as an armature, has windings on it terminated on to a commutatorBrushes make and break contact with commutation segments, thus...
When a current passes through the coil wound around a soft iron core, the side of the positive pole is acted upon by an upwards force, while the other side is acted upon by a downward force. According to Fleming's left hand rule, the forces cause a turning effect on the coil, making it rotate. To...
As of today, there still are no plans that I know of that surely result in a magnet motor. However, that could change in the next few weeks, as someone has come forward with a design that they are talking about open sourcing. I'm in process of getting those, having a few built to confirm the...
Servo motors have been around for years. Because of their small size, they are widely used by hobbyists and collectors to operate remote-controlled or radio-controlled toy cars and robots and even airplanes. Servo motors can also be found in one form or another in industrial devices where robotics...
A stepping motor is a small electric motor that converts digital pulses into mechanical rotations. Every revolution of the motor is a small, discrete step controlled by a digital pulse. Each step is the same size and requires a separate pulse. As the pulses increase in frequency, the stepping motor...
The piston rings fit into horizontal grooves in the pistons. The rings expand against the cylinder wall and seal the combustion chamber. This ensures that the engine maintains a consistent level of compression. Stuck piston rings are uncommon, but they do occur. There are two positions in which the...
Building your own wind turbine generator is no small task. Wiring the DC motor to the rest of your renewable energy system requires advanced knowledge and experience with electrical systems and involves connecting several different components to your turbine. Depending on your skill level,...
Wind turbines are a viable--and at times less costly--alternative to installing solar panels in residential settings. All wind turbines use a permanent magnet motor to generate direct current electricity. Although home appliances cannot utilize direct current, obtaining an AC power inverter will...
There are many different types and sizes of electric motors. Electric motors can be divided into two types: Alternating Current (AC) motors and Direct Current (DC) motors. An AC electric motor requires an alternating current, while a DC motor requires direct current.
AC motors are further...
DC or direct current motors are the most efficient electrical motors on the market today. Understanding the basic layout of a DC motor can go a long way in the troubleshooting and repair of the motor. There are two major components of an electrical motor called the stator and the rotor. Generally a...
One of the most common varieties of electric motors is the brushed direct current (DC) motor, which can be found in numerous electrical applications. Like all electric motors, they rely on a constantly changing magnetic field between stationary and rotating magnets. Brushed DC motors consist of a...
A DC motor works by using the power of magnets. Opposite poles on magnets attract each other, whereas similar, or like, poles repel. A permanent magnet DC motor uses a field magnet to set up a static magnetic field. An armature with an arrangement of electromagnets is connected to an axle. The...
In any electric motor, rotation is caused by two magnetic fields that oppose each other. In some motors, both fields are created by coils of wire - electromagnets. In other motors, one field is electromagnetic and the other comes from one or more permanent magnets.In the permanent magnet (PM)...
Magnets produce magnetic fields, or areas in which potentially magnetic materials, such as iron, are polarized and attracted to the magnet. There are two types of magnets: permanent magnets and electromagnets. Permanent magnets have a constant magnetic field, while electromagnets only produce a...
Micro systems technology:
To convert Kinetic energy into electricity one needs more than just a micro-generator. The kinetic energy has to be converted into rotational energy driving the micro-generator. The generator has to be accelerated by means of a gearbox or a spring and the energy has to...
The article How Electric Motors Work explains how brushed motors work. In a typical DC motor, there are permanent magnets on the outside and a spinning armature on the inside. The permanent magnets are stationary, so they are called the stator. The armature rotates, so it is called the...
When building models, be they planes or boats or robots, the ubiquitous motor of choice is the brushless motor. The reason for this is power and longer run times. A motor with brushes has current running through them into the center of the motor. After a time, friction can cause wear, resulting in...
Types
There are four main types of stepper motors:Permanent magnet stepper (can be subdivided into 'tin-can' and 'hybrid', tin-can being a cheaper product, and hybrid with higher quality bearings, smaller step angle, higher power density)Hybrid synchronous stepperVariable reluctance stepperLavet...
Wind energy, being one of the most important renewable energy sources, and wind turbines, which are necessary for producing wind energy, are very important in today's environmentally aware world. Below we outline detailed information about generators, with many power options right up to 7 MW, as...
How do they work?
The drawing that shows a curved "arcuate" armature magnet in three successive positions over a line of fixed stator magnets provides at least highly simplified insights into the theory of permanent magnet motive power generation. Johnson says curved magnets with sharp leading and...
Engineers today are tasked with applying myriad motor technologies because most rotary motion is ultimately powered by electric motors. One proliferating option,
ac (PMAC) motors, has functionalities that partially overlap with those of both ac induction and servomotors for larger,...
The trapezoidal permanent magnet synchronous motor (also known as brushless DC motors)
IntroductionTrapezoidal wave (square wave) magnetic field of permanent magnet synchronous motor rotor makes the spatial distribution of the stator on the rotor rotates counter-electromotive force generated for...
Neodymium Rings - NdFeB Ring Magnets
NdFeB rings are sometimes also known as discs with central holes.
The NdFeB Rings exits in two styles – 'pure' rings and 'countersunk' rings. The holes are centrally located.
The countersunk ring allows for the magnet to be screwed onto another item...
