Magnetic sensor experiment kit

for laboratory processes

Overview
The Helmholtz & Solenoid Laboratory Apparatus (HG302-HW322B kit) is a teaching instrument for generating a uniform magnetic field with a Helmholtz coil pair or a long, uniform axial field with a solenoid. It is designed for demonstration and quantitative verification of the Biot–Savart law, magnetic field superposition and spatial field distribution using Hall-effect sensors.

Instrument configuration

• Solenoid & Helmholtz coil tester
• HG302 Hall-effect sensor
• HW322B Hall-effect sensor
• Helmholtz coil test bench
• Solenoid

Product features

• Adjustable Helmholtz coil spacing (free adjustment)
• Flexible electrical connection for the measuring coil
• Simple, serviceable solenoid structure

Experimental details

• Measure magnetic field distribution of a Helmholtz coil and a solenoid using Hall-effect sensors

Experimental objectives

• Understand magnetic field measurement using the Hall effect
• Determine the axial magnetic field distribution inside a solenoid
• Measure field uniformity for Helmholtz coil spacings of R/2, R and 2R

Technical specifications

• Excitation current: continuously adjustable (0–250 mA for solenoid; 0–500 mA for Helmholtz coil)
• Solenoid magnetic field: continuously adjustable (0–35 Gs)
• Helmholtz coil magnetic field: continuously adjustable (0–15 Gs)
• Hall current: continuously adjustable (0–2.5 mA for solenoid; 0–5 mA for Helmholtz coil)