n-type GaAs Hall sensor chipHelmholtz coil pair 75mm effective diameter 11.25mT central mag-netic induction at 0.5A.Two-axis mechanical traverse for field plottingConstant current sources for magnet (0-0.5A) and Hall driving current (0-3mA).Reversing switch for exploring the elimination of systematic error3-1/2 digit current and voltage metersMetal storage case for the Hall Effect board.
Explores the Hall Effect in a GaAs semiconductor.Explores systematic errors and their elimination. Determines the conductivity of the semiconductor.Uses the semiconductor to plot the coils' magnetic field.The Hall Effect is the generation of a side-to-side voltage in a conductor or semiconductor carrying a current when it is placed in a magnetic field. The effect is widely used in magnetic field sensors. It is associated with several well-known systematic errors, some of which can be eliminated by special measurement techniques.This Hall Effect Apparatus consists of a mounted n-type semiconductor chip on a traverse mechanism, a pair of coils, relay-controlled reversing switches, and a control unit with connecting cords.
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