Non-Linear Properties Of The Hall Probe - MAGSYS IGM11 Operating Instructions Manual

magne t
MAGSYS
systeme
This implies:
with
n
e
e
w
t
B
This represents the idealized Hall effect.
In reality, the results deviate from this idealized effect.
Since there is a linear equation between the current and the measuring result, it
follows:

3.1.2 Non-linear Properties of the Hall Probe

In contrast to the idealized description, you find a non-linear behavior:
For the used Hall sensor the real description is true for flux densities up to about
5000 mT.
3.1.2.1 Reasons for the Occurrence of R
The strongest deviation from the idealized Hall effect is the occurance of an offset
voltage without a magnetic field. This effect is mainly caused by geometric
asymmetries of the Hall element.
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Charge carriers
Elementary charge of the electron (1.6022 × 10
Width of the path on which the electrons move
Effective force of the Hall element
Flux density in [Tesla]
R
Hall
R S
=
Hall
Gaussmeter IGM11 Operating Instructions
Chapter 3 Function of the Gaussmeter
I 1
U B
= ⋅ ⋅
Hall
n e t
⋅
e
-19
1
B S
= ⋅ = ⋅
0
n e t
⋅ ⋅
e
( )
2
B 1 α B
⋅ ⋅ + ⋅ +
0 HALL
offset
As)
B
R
offset