Search coil by computer to determine displacement in multiple dimensions. Additionally, a second search coil can be added to measure torsional rotation. A more crude search coil also called exploring coil is also used in laboratory experiments in schools to measure the magnetic field in a certain region of space. In this case the search coil consists of a simple wire coil or solenoid connected to a sensitive ammeter or galvanometer. The coil is placed in the magnetic field to be measured and quickly withdrawn to a region of space with a negligible magnetic field. As the search coil moves the magnetic
Superconducting magnetic energy storage mean radius of coil is "R". "a" and "b" are width and depth of the conductor. "f" is called form function which is different for different shapes of coil. "ξ" (xi) and "δ" (delta) are two parameters to characterize the dimensions of the coil. We can therefore write the magnetic energy stored in such a cylindrical coil as shown below. This energy is a function of coil dimensions, number of turns and carrying current. Where Besides the properties of the wire, the configuration of the coil itself is an important issue from a mechanical engineering aspect. There are three factors