Musical instrument pickup incorporating engineered ferromagnetic materials

摘要

Magnetic pickups with unique tonal properties that incorporate components that are formed from an engineered ferromagnetic material. Monolithic and composite pickup components with ferromagnetic loss properties that are novel within the context of magnetic pickup design are fabricated from materials that comprise granules of ferromagnetic hysteresis materials or soft ferromagnetic materials and an insulating binder. The tone of a pickup is modified by retrofitting the pickup to include a bound granular material.

主权项

1. A magnetic pickup for detecting the vibration of ferromagnetic strings on a musical instrument, the pickup comprising:
at least one ferromagnetic pole piece with each pole piece having at least one string-sensing surface; a magnetic source associated with each of the at least one pole pieces that generates at least a portion of a magnetic field at the at least one string-sensing surface of each pole piece; a wire coil having its innermost windings defining an interior coil volume and a top and bottom of the volume defined by a top and bottom of the wire coil, the wire coil surrounding at least a portion of each pole piece; a mounting structure that secures each of the pole pieces and the coil in a stable relative position and enables their attachment to the stringed musical instrument; and a component that at least partially determines a tone of the pickup through ferromagnetic loss mechanisms, the component being formed from a low permeability material that comprises an insulating binder and a granulated ferromagnetic material that is selected from a group consisting of hysteresis materials and soft ferromagnetic materials and the low permeability component having a portion that is outside of the interior coil volume.