3B SCIENTIFIC Hall Effect Basic Apparatus Manual de instruções - Página 5
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Imprimir página7.1.3 Hall voltage as a function of temperature T
Select magnetic flux density B or coil cur-
rent.
Switch on the heating controller and record
the Hall voltage U
H
ture.
It is recommended that the sample be heat-
ed to 170°C and to write down the Hall volt-
age as it cools down.
Turn on the heating controller and record the
Hall voltage U
as a function of temperature.
H
For your measurement plots, see the manu-
al for the relevant circuit boards.
7.2 Measurement of conductivity as a func-
tion of temperature T
The following equipment is needed for the ex-
periments:
1 Transformer with rectifier, 3 A @230
or
1 Transformer with rectifier, 3 A @115 V 1003315
Select a small sample current I
current will cause the sample to heat up, you
should not exceed a current of 5mA.
Switch the display to sample voltage.
Turn on the heating controller and record the
sample voltage U
P
ture.
For your measurement plots, see the manu-
al for the relevant circuit boards.
Fig. 9 Experiment set-up for investigating the Hall effect with a uniform magnetic field
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as a function of tempera-
1003316
. Since the
P
as a function of tempera-
Subject to technical amendments
© Copyright 2015 3B Scientific GmbH
8. Care and maintenance
Before cleaning the equipment, disconnect it
from its power supply and remove the circuit
board.
Use a soft, damp cloth to clean it.
Keep the circuit board in the original box
after it has been used and has cooled down.
9. Disposal
The packaging should be disposed of at
local recycling points.
Should you need to dispose of the equip-
ment itself, never throw it away in normal
domestic waste. Local regulations for the
disposal of electrical equipment will apply.