Bubble Fog Machine A electric guitar pickup is actually similar to a powerful microphone coil. For decades, active microphones have been wired with the style coil mounted on the principal of the microphone's transformer, and maybe not called to ground (‘floating'). The microphone's case is normally connected to the cable shield, that is linked to the microphone amplifier's ground (see Rane's website for more discussion).
By and big, powerful microphones are extremely calm units consequently of the mixture of transformer solitude and balanced, floating sign lines through the duration of, as well as shielded, humbucking coils.
So why not instruments? Instruments are once overwhelmed by noise. Humbucking pickups are merely an incomplete (though crucial!) solution. The most obvious answer is to float your guitar collection to a healthy result, as being a microphone. An identical thought was printed that 2001 patent application like this Bubble Fog Machine?