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Upwing’s radial gap style coupling consists of an inner rotor that is certainly linked to a thrust module shaft, having a encompassing sleeve to safeguard the magnets that crank out a magnetic subject. This internal rotor is meant to be subjected to the downhole fluids, presenting a completely sealed assembly effective at running from the high stress, higher temperature properly bore environment for your life of the machine. The outer rotor of the magnetic coupling is sealed With all the PM motor within a hermetically sealed section that's maintained in a lower force fuel atmosphere, because it generates bigger windage losses as a consequence of its more substantial diameter.
In many of the metals that aren't magnetic, the localized magnetic domains cancel each other out given that they position in various Instructions.
Ferromagnetic elements are what we generally perspective as magnetic. These are typically strongly attracted to magnets and sustain this magnetism regardless if a magnet isn’t nearby. This is certainly a result of the existence of magnetic domains, as explained inside the past section.
Magnetic ferrofluids, Even though They are really fabricated from tiny ferromagnetic particles suspended in liquid, are sometimes thought of paramagnetic considering that they can not be magnetized.
Silver isn’t magnetic but will interact with potent magnets less than the results of Lenz’s Law. In this article, magnetic just like aluminum and brass, the magnet’s motion relative for the silver creates compact eddy currents in the metal.
). The same thought can be utilized in the so-known as "magnet check", through which a car or truck chassis is inspected with a magnet to detect areas fixed making use of fiberglass or plastic putty.
The force created via the aligned atoms creates a magnetic area. The piece of iron is now a magnet.
Speakers and microphones: Most speakers make use of a long lasting magnet and a latest-carrying coil to convert electric powered Vitality (the sign) into mechanical Vitality (motion that produces the seem). The coil is wrapped close to a bobbin hooked up for the speaker cone and carries the sign as modifying present-day that interacts with the field of your long lasting magnet. The voice coil feels a magnetic drive As well as in reaction, moves the cone and pressurizes the neighboring air, Consequently producing seem.
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Magnetic recording media: VHS tapes contain a reel of magnetic tape. The information which makes up the online video and seem is encoded over the magnetic coating on the tape.
Some aquarium pumps are magnetic drive pumps -- they use magnetic coupling concerning the motor to the dry aspect of the aquarium wall plus the propeller/impeller while in the water on one other side of that aquarium wall.[four]
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