Xiaomi Wireless Handheld Electric Mop A best guitar pickup is basically similar to a vibrant microphone coil. For many years, energetic microphones have already been sent with the style coil attached to the principal of the microphone's transformer, and perhaps not introduced to soil (‘floating'). The microphone's case is usually attached to the wire shield, which will be attached to the mike amplifier's floor (see Rane's site for more discussion).
By and big, energetic microphones are very quiet products consequently of the combination of transformer solitude and balanced, floating transmission lines throughout, in addition to guarded, humbucking coils.
Therefore why don't you guitars? Guitars are notoriously overwhelmed by noise. Humbucking pickups are just an incomplete (though important!) solution. Well-known answer is to move the guitar collection to a balanced production, as being a microphone. A similar thought was printed this 2001 patent application like this Xiaomi Wireless Handheld Electric Mop?