Description

Ammeter, to measure Hall probe current. Voltmeter, high input impedance, to measure Hall voltage. Magnetic Compass, to determine direction of magnetic field. Gaussmeter to measure magnetic field.
A Hall effect measurement system is useful for determining various material parameters, but the primary one is the Hall voltage (VH). Carrier mobility, carrier concentration (n), Hall coefficient (RH), resistivity, magnetoresistance (RB), and the carrier conductivity type (N or P) are all derived from Hall voltage.