Hall Effect Sensors
The Hall Effect devices offer the smallest sensing area
and are able to measure a wide range of field values appropriate for
field mapping, magnet field control, magnetic sensor calibration and
permanent magnet quality control.
for further explanation on the principle behind the Hall Effect probes
Group3’s DTM use linearisation and temperature
correction techniques to overcome inherent problems of standard Hall
Effect probes. Each unit is individually calibrated using multiple
field values and temperature ranges and is stored within the probe
itself. This enables the probes to be interchanged without
The Teslameter uses the sensor data to make very
accurate digital field readings.
Sensors can be fixed or flexible and are either axial,
transverse or 3-axis with cable lengths from 2 to 30 metres. It is
recommended that for longer cables lengths that shielded probe cable is