PRODERA MODAL ANALYSIS SYSTEMS
AND SOFTWARE

EXCITER EX 520 C 50

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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.

 

TECHNICAL FEATURES

Nominal force

550 N (126.72 lbf) 2%

Force factor

27.5 N/A

Maximum peak current

20 A

Maximum displacement

25,4 mm ( 1 inch)

Coil resistance at 20 C

1,82 Ohm

Armature weight with an aluminium coil

680 grams (1,49 lbs)

Magnetic circuit

Magnets

Cooling

By incorporated ventilation

Electrical connection

With socket

Total weight

66 kg (146.7 lbs)

Dimensions

See sketch

Electrical optical limits

25 mm

Mechanical limit stops

26 mm

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Dimensions in mm

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