| 摘要 |
<p>A donut-shaped solenoid surrounds a central plate which spins clockwise or counter-clockwise while holding an object, such as a tube, inside the solenoid coils so that the tube and its contents can be moved through the solenoid's magnetic field. Although the plate interrupts the solenoid coils, the plate is a conductor which can maintain the conductivity of the coils and thus the strength of the magnetic field. The solenoid donut can be of any size, but is especially intended to be at the approximate scale of a microchip, so as to fit inside any kind of hand-held or portable device, such as a cell phone, tablet or a laptop computer. Multiple solenoid donuts can be stacked in series to function within larger-scale devices such as air-conditioners, generators, or automobiles.</p> |
