Project Type

URC Presentation


Physics and Astronomy

College or School


Class Year



Engineering Physics

Faculty Research Advisor

Matthew Argall


As a part of the UNH SWFO-L1 mission to monitor space weather and the sun’s behavior, the fluxgate magnetometer is an important component to measure external magnetic fields. The basic principle of a fluxgate magnetometer is to detect changes in the ambient magnetic field by inducing a magnetic field in a ferromagnetic material via a drive winding. Each magnetometer is unique due to the ferromagnetic properties of the core material which can be seen in the hysteresis loop which is a relationship between the magnetic field strength (H) and the induced magnetic field (B). Measuring the hysteresis of a fluxgate magnetometer is important because the uniqueness of each magnetometer makes them difficult to model. In this project I am taking laboratory measurements from a fluxgate magnetometer to determine its hysteresis loop. Future projects will use this data and a similar setup of the SWFO-L1 magnetometer to compare to existing models and create a performance model.