AIM
OF THE EXCITERS
The
aim of the exciters is to transform the current
produced by an amplifier in a proportional force
which, applied on appropriated points of a structure,
sends a vibratory movement to this structure.
MAIN FEATURES
The
EX 520 C50 exciter is a big exciter including a
magnetic circuit made of magnets enabling the
development of important forces. The moving assembly
made out of a magnesium head and an aluminium coil is
mounted on a guidance rod. The rod is guided by two
near zero friction bearings to insure a high
amplitude longitudinal movement with no transverse
movement.
This
exciter includes a fan to insure the cooling of the
moving coil and the fan is directly powered by the
power amplifier through the main exciter cable.
A
multicolour luminous scale allows at any time the
vizualisation of the position of the moving coil in
the magnetic circuit and the indication of the
amplitude movement during the tests.
This
visualisation is repeated on the front panel of the
associated amplifier.
