3B Scientific GmbH • Rudorffweg 8 • 21031 Hamburg • Germany •
www.3bscientific.com
Subject to technical amendments
© Copyright 2012 3B Scientific GmbH
DC POWER SUPPLY 0 ... 500 V
0 ... 500 V
0 ... 50 V
V
V
V
V
0
1
0
0 2
0
03
0
0 400
500
0 ... 12 V
0 ... 8 V
0
1
0
2
0 3
0 40
50
0
2
4
6
8
0
3
6
9
12
A
Z
A
DC POWER SUPPLY 0 ... 5 kV
KV
0
1
2 3
4
5
0 ... 5 KV
Z
Fig. 3 Example of a circuit for the Thomson tube S (1000617): Determination of the specific charge
e
/
m
of an electron using
the field compensation method
DC POWER SUPPLY 0 ... 500 V
0 ... 500 V
0 ... 50 V
V
V
V
V
0
100
2
0
03
0
0 400
500
0 ... 12 V
0 ... 8 V
0
10
2
0 3
0 40
50
0
2
4
6
8
0
3
6
9
12
Fig. 4 Circuit for the fine beam tube (1000904): Determination of the specific charge
e
/
m
of an electron