Giant Magnetoresistance (GMR) is the phenomenon of thin film metallic materials changing their resistances up to 50% in magnetic fields resulting in improved sensitivity when compared to existing Hall Effect devices. This project explores using GMR in a guitar pickup application comparable to inductive and Hall Effect types. A GMR-based prototype was designed, constructed and tested on the basis of sensitivity, bandwidth, signal-to-noise ratio, and power consumption. Results show that GMR is a viable alternative to both inductive and Hall Effect pickups with improved performance in several areas.

• This report represents the work of one or more WPI undergraduate students submitted to the faculty as evidence of completion of a degree requirement. WPI routinely publishes these reports on its website without editorial or peer review.

Creator

• Campbell, Daniel James
• Atteya, Caroline Mamdouh
• Vasconcelos, Joao Mauricio
• Oo, Kaung Myat

Publisher

• Worcester Polytechnic Institute

Identifier

• E-project-032416-162550

Advisor

• McNeill, John A.
• Bitar, Stephen John

Year

• 2016

Sponsor

• Allegro Microsystems

Date created

• 2016-03-24

Localização

• Gilbertville

Resource type

• Major Qualifying Project

Major

• Electrical & Computer Engineering

Rights statement

• In Copyright