Magnetic flux concentrator for increasing the efficiency of an electromagnetic pickup

摘要

An electromagnetic pickup adapted to be secured to a stringed musical instrument, such as a guitar or bass or the like, of the type having a plurality of magnetic strings of ferromagnetic composition such as steel tensioned to provide musical notes under mechanical stimulation such as picking is disclosed. The electromagnetic pickup comprises at least one magnetized core having a length and a width. An electrically conductive material is wound into at least one coil around the magnetized core, and a ferromagnetic material such as iron, nickel, cobalt or alloys thereof is positioned on at least one side of the length and internally of at least a portion of the electrically conductive material. The electromagnetic pickup is mounted proximate the strings in such a manner that magnetic field of the pickup extends to the strings for the purpose of generating an output electrical signal analogous to the musical notes.

主权项

1. An electromagnetic pickup adapted to be secured to a stringed musical instrument of the type having a plurality of strings of ferromagnetic composition, wherein said strings are tensioned to vibrate with a vibration corresponding to musical notes in response to mechanical stimulation, said electromagnetic pickup comprising at least one magnetized core, said magnetized core having a length and a width, said magnetized core creating a magnetic field, an electrically conductive member configured into at least one coil extending around said magnetized core, and a ferromagnetic material positioned on at least one side of said length of said magnetized core and radially inwardly of at least a portion of said electrically conductive member, said ferromagnetic material being positioned outside of said magnetized core, said electromagnetic pickup mounted proximate said strings in such a manner that said magnetic field of said pickup extends to said strings causing variations in said magnetic field and generating in said coil an output electrical signal in response to said vibration of said strings.