Table des Matières
Publicité
Les langues disponibles
Les langues disponibles
Fig. 1: Scale for measurement of angle
1
2
Fig. 3: Control panel
1
2
Main switch,
can be operated during the experiment without having
to open the door. An exact adjustment of Foucault's pen-
dulum can be carried out easily with the aid of accesso-
ries.
2.1 Basic Functions
2.1.1 Continuous swinging of the pendulum
An electromagnet with a radially symmetric magnetic
field is mounted exactly in the middle of the pendulum's
path. The magnet only has an effect when the pendulum
is moving towards the centre. The electromagnet is con-
trolled by a photovoltaic cell which registers the shadow
of the pendulum motion by the light provided by a built-
in fluorescent lamp. The pendulum is excited in a way
such that its amplitude remains constant (Fig. 4).
3
3
4
Fuse,
Drive unit switch,
Control lamp,
4
5
5
6
Pulse regulator,
Projection lamp switch
7
Fig. 2: Charron ring
6
Fig. 4
Publicité
Table des Matières
