Magnetic Field 100mT

datalogging sensors


Data Harvest

Product Description

Explore the nature and strengths of magnetic fields. 


28 -sec - Change in magnetic field and induced current

43-sec change in field strength along the axis of a bar magnet 

Explore the nature and strengths of magnetic fields of solenoids and permanent magnets with this robust sensor which houses two switchable Hall effect transducers to measure accurately both Radial and Axial magnetic fields.


Teaching applications:
  • Magnetic field in a coil
  • Magnetic field in a Slinky Spring
  • Magnetic field of magnets
  • Magnetic field of a solenoid
  • Variation of field vs. current

Extension and advanced ideas:
  • Mapping a magnetic field
  • Exploring electromagnets
  • Transformers
  • Inductance and phase

Download Magnetic Field Sensor Manual  Doc No.: DS032 | Issue: 5

Sensor Ranges:

Range Name Value Resolution Accuracy
Magnetic Field 100mT ±100mT Radial ±100mT Axial 0.1mT


±100 mT radial & axial (Resolution 0.1 mT)
How does the magnetic field strength vary with current? (Physics (14-18) : Electricity & Heat eBook)
Uses an ac power supply to provide a constantly changing current Using the ac power supply gives multiple repeats of the same experiment .
HK$ 825.00