Magnetic Field DT156

Fourier Systems
Magnetic Field
DT156
Type: Magnetic Field
Sensor
Dual Range:
±10 mT
±0.2 mT
Sensor description
The Magnetic Field sensor has two
ranges. Low resolution range to
explore the nature and strengths of
magnetic fields of solenoids and
permanent magnets and high
resolution range to explore the
Earth’s magnetic field
How it works
The sensor uses a Hall Effect
transducer, which produces a
voltage, which is proportional to the
magnetic field. The sensor measures
the axial component of the magnetic field (parallel to the sensor tube).
The line mark at the front of the sensor indicates the exact location of the hall
element.
Selecting the range
Flick the sensitivity switch on the top of the sensor tube to the desired range:
High (±0.2 mT) or Low (±10 mT)
Selecting units:
The default unit is Tesla. To change the units to Gauss:
1. Click Setup Wizard on the main toolbar
2. Click Properties next to the magnetic field sensor input
3. Check the checkbox next to the desired unit to select it.
4. Click OK
Calibration
The DT156 ships fully calibrated. For further calibration an offset calibration screw is
located at the top of the sensor tube. Place the sensor in a known magnetic field
and start recording. Insert a flat screwdriver to the calibration hole and slowly turn
the calibration screw until the reference value is reached.
What it is used for
The Magnetic Field sensor can be used for a variety of interesting experiments like
measurement of the earth’s magnetic field or studying the magnetic field near a
permanent magnet, near a current-carrying wire or inside a solenoid.
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Fourier Systems
Specifications:
• Two Ranges:
High sensitivity ± 0.2 mT
Low sensitivity ± 10 mT
• 12-bit Resolution (TriLog):
0.0001 mT (high sensitivity)
0.005 mT (low sensitivity)
• 10-bit Resolution
(MultiLogPRO, MultiLog):
0.0004 mT (high sensitivity)
0.02 mT (low sensitivity)
Magnetic field produced by a pair of Helmholtz coils
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