Acoustic Guitar Pickguard Designs A electric guitar pickup is essentially just like a powerful mike coil. For many years, powerful microphones have now been sent with the style coil attached with the primary of the microphone's transformer, and not introduced to surface (‘floating'). The microphone's situation is typically attached to the cable shield, which can be connected to the microphone amplifier's soil (see Rane's site for more discussion).
By and large, energetic microphones are extremely calm products as a result of the mixture of transformer isolation and healthy, suspended indication lines for the duration of, along with shielded, humbucking coils.
Therefore why not instruments? Guitars are notoriously overwhelmed by noise. Humbucking pickups are just a partial (though essential!) solution. The most obvious answer is to float practicing the guitar pickup to a healthy production, just like a microphone. An identical thought was printed this 2001 patent application like this Acoustic Guitar Pickguard Designs?