3B SCIENTIFIC Hall Effect Basic Apparatus Buku Petunjuk - Halaman 3
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Halaman Cetak5. Technical data
Power supply:
max. 12 V AC, 3 A via 4-mm safety sockets
Constant current source for sample current:
Current:
Display precision:
Display resolution:
Measurement output:
Hall voltage and compensation:
Display:
Display precision:
Display resolution:
Compensation:
Measurement output:
Sample voltage:
Display:
Display precision:
Display resolution:
Measurement output:
Sample temperature:
Range:
Display precision:
Display resolution:
Measurement output:
Attachment for circuit boards:
Connector:
Outputs:
Hall voltage:
Voltage drop across
germanium crystal:
Voltage equivalents:
General data:
Dimensions:
Weight:
6. Operation
6.1 Experiment set-up for uniform magnetic
field and attachment of circuit boards
The following equipment is necessary to set up
a uniform magnetic field:
1 P-doped germanium on circuit board 1009810
or
1 N-doped germanium on circuit board 1009760
or
1 Undoped germanium on circuit board 1008522
1 U-shaped core
1 Pair of pole pieces for Hall effect plus clamps
2 Coils, 600 windings
1 Magnetic field sensor, ±2000 mT
0 to ±34 mA, tol.: ±1 mA
±2.5 %
0.1 mA
I
= Umeas * 0.1 A/V
P
0 to ±199.9 mV
±2.5%
0.1 mV
±10 mV, tol.: +5 mV
U
= Umeas * 0.1
H
0 to ±1.999 V
±2.5%
1 mV
U
= Umeas
P
T
to 170°C, tol.: ±3°C
0
±2%
0.1 °C
T (°C) = Umeas * 100/V
Multi-pin socket
4-mm safety sockets
4-mm safety sockets
4-mm safety sockets
8-pin mini-DIN sockets
TM
(for 3B NETlog
)
180x110x50 mm approx.
0.5 kg approx.
1000979
1009935
1000988
1009941
Place the U-shaped core on a stable, level
surface.
Place coils over the core in such a way that
their connectors are facing the front.
Insert the U-shaped holder all the way into
the hole in the U-shaped core and secure it
in place with the knurled screw.
Place the pole pieces on the legs of the core
and secure them in place with clamps (see
Fig. 4).
Fig. 4 Set-up on U-shaped core with coils, pole pieces
and U-shaped holder
Insert the circuit board into the attachment
on the console until the contact pins slot into
the multi-pin socket. Make sure the circuit
board is correctly aligned (see Fig. 5).
Insert the console with the circuit board at-
tached onto the U-shaped holder. Make sure
the board is held parallel with the U-shaped
core. You may need to turn the U-shaped
holder slightly (see Fig. 6).
Insert the magnetic field sensor into the
corresponding attachment on the console.
Undo the clamps and move the pole pieces
as far as the spacers on the circuit board
(make sure the board does not get warped)
(see Fig. 7/8).
Fig. 5 Insertion of circuit board
3