FUNCTIONAL PROPERTIES OF MINIATURE GRAPHENE HALL-EFFECT SENSOR
Maciej Kachniarz – Oleg Petruk – Maciej Oszwaldowski – Tymoteusz Ciuk – Wlodzimierz Strupinski – Jacek Salach – Adam Bienkowski – Roman Szewczyk – Wojciech Winiarski
In the paper, the process of manufacturing the graphene Hall-effect structure is presented. Moreover, the measurement sys-tem utilizing Helmholtz coils as a source of reference magnetic field is described. The basic functional properties of developed sensor, like sensitivity and offset voltage, were investigated. Also the influence of the supply current on sensitivity and offset voltage and time drift of this parameters were studied. Obtained results indicates that developed graphene Hall-effect sensor ex-hibits good functional properties and can be utilized in industrial measurements of magnetic field.
Keywords: :graphene, Hall-effect sensor, magnetic field measurement