Roland Weighted Keyboard A guitar pickup is basically similar to a vibrant microphone coil. For many years, energetic microphones have now been sent with the style coil attached with the principal of the microphone's transformer, and maybe not referenced to soil (‘floating'). The microphone's event is usually attached to the wire guard, that is connected to the mike amplifier's soil (see Rane's site for more discussion).
By and big, vibrant microphones are very quiet products consequently of the combination of transformer isolation and healthy, floating indication lines during, along with protected, humbucking coils.
Therefore why not instruments? Guitars are once plagued by noise. Humbucking pickups are only an incomplete (though important!) solution. The obvious option is to float the guitar collection to a healthy production, as being a microphone. A similar idea was printed this 2001 patent request like this Roland Weighted Keyboard?