Explore the Hall Effect in a GaAs semiconductor.
- n-type GaAs Hall sensor chip
- Helmholtz coil pair 75 mm effective diameter, 11.25 mT central magnetic induction at 0.5 A
- Two-axis mechanical traverse for field plotting
- Constant current sources for magnet (0 to 0.5 A) and Hall driving current (0 to 3 mA)
- Reversing switch for exploring the elimination of systematic error
- 31/2 digit current and voltage meters
- Metal storage case for the Hall Effect board
Explores systematic errors and their elimination. Determines the conductivity of the semiconductor.
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.
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.